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Publication numberUSRE45099 E1
Publication typeGrant
Application numberUS 12/872,220
Publication date2 Sep 2014
Filing date31 Aug 2010
Priority date20 Oct 2000
Also published asCA2359450A1, CA2359450C, US6772836, US6799637, US7156180, US7185709, US7398831, US20020046840, US20030079885, US20030079886, US20040177959, US20040182581, US20060027376, USRE45011, USRE45244
Publication number12872220, 872220, US RE45099 E1, US RE45099E1, US-E1-RE45099, USRE45099 E1, USRE45099E1
InventorsL. McDonald Schetky, Craig D. Johnson, Matthew R. Hackworth, Patrick W. Bixenman, Peter Besselink
Original AssigneeHalliburton Energy Services, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Expandable tubing and method
US RE45099 E1
Abstract
An apparatus suitable for use in a wellbore comprises an expandable bistable device. An exemplary device has a plurality of bistable cells formed into a tubular shape. Each bistable cell comprises at least two elongated members that are connected to each other at their ends. The device is stable in a first configuration and a second configuration.
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Claims(31)
What is claimed is:
1. An apparatus for use in a wellbore, comprising:
a wellbore tubular having a bistable device configured for deployment proximate a wellbore wall, the expandable bistable device having a plurality of bistable cells arranged in a generally tubular shape, the plurality of bistable cells being stable in a first configuration and in a second configuration, wherein the force required to move the plurality of bistable cells between the first configuration and the second configuration is greater in one direction than the other.
2. The apparatus as recited in claim 1, wherein each bistable cell comprises at least two elongated members connected to each other.
3. The apparatus as recited in claim 2, wherein the first configuration is a first generally tubular configuration and the second configuration is a second generally tubular configuration having a larger diameter than the first generally tubular configuration.
4. The apparatus as recited in claim 3, further comprising a conveyance device able to transport the bistable device to a desired location in the wellbore.
5. The apparatus as recited in claim 4, further comprising a deployment device able to initiate expansion of the bistable device from its first generally tubular configuration to its second generally tubular configuration.
6. The apparatus as recited in claim 4, wherein each cell comprises a first member and a second member, the first member and the second member each comprising a midpoint and two ends, and further wherein the first member is more flexible than the second member.
7. The apparatus as recited in claim 6, wherein the first and second members are mechanically connected such that the second member hinders deformation of the first member.
8. The apparatus as recited in claim 7, wherein the first member has two stable positions, the first stable position being where the first member mid-point is adjacent to the second member mid-point, the second stable position being where the first member mid-point is displaced from the second member mid-point to form a gap between the first member mid-point and the second member mid-point.
9. The apparatus as recited in claim 6, wherein the second member has a greater thickness than the first member.
10. The apparatus as recited in claim 6, wherein the thickness ratio of the second member to the first member is greater than approximately 3:1.
11. The apparatus as recited in claim 6, wherein the thickness ratio of the second member to the first member is greater than approximately 6:1.
12. The apparatus as recited in claim 4, wherein the bistable device further comprises a wrapping attached to the an outer surface of the bistable device.
13. The apparatus as recited in claim 12, wherein the wrapping comprises an expandable screen.
14. The apparatus as recited in claim 4, wherein the bistable device further comprises a deformable material attached to the an outer surface of the bistable device.
15. The apparatus as recited in claim 14, wherein the deformable material comprises an elastomer.
16. The apparatus as recited in claim 15, wherein the elastomer is selected to be resistant to crude oils, brines, and acids encountered in oil and gas wells.
17. The apparatus as recited in claim 4, wherein the bistable device in its the second generally tubular configuration comprises a plurality of diameters.
18. A method of facilitating use of a wellbore, comprising:
isolating a portion of a wellbore with an expandable bistable device having a generally tubular shape formed by a plurality of bistable cells that permit the expandable bistable device to be selectively actuated between a contracted state and an expanded state.
19. A method of sealing a portion of a wellbore tubular, comprising: locating a bistable device comprising a plurality of bistable cells within a wellbore tubular adjacent to a zone to be sealed; and expanding the bistable device against the wellbore tubular by moving the bistable device through a nonstable region towards an expanded stable state.
20. An apparatus for use in a wellbore, comprising:
a wellbore conduit having a bistable wall comprising a plurality of bistable cells, the bistable wall enabling transition of the wellbore conduit from a radially contracted stable state, in which the wellbore conduit is readily insertable into a wellbore, and a radially expanded state, in which the bistable wall is proximate the wall of the wellbore.
21. The apparatus as recited in claim 20, further comprising a conveyance device able to transport the wellbore conduit to a location in a borehole.
22. The apparatus as recited in claim 21, wherein the apparatus further comprises a deployment device that initiates the expansion or collapse of the bistable device.
23. A wellbore tubular, comprising:
a radially expandable bistable tubing comprising a plurality of bistable cells; and
a device mounted to the tubing, the device being configured to sense a wellbore parameter.
24. A method of routing a communication line in a well, comprising:
deploying an expandable tubing formed of bistable cells into a well;
connecting a communication line along at least a portion of the expandable tubing; and
expanding the expandable tubing in the well.
25. The method as recited in claim 24 A method of routing a communication line in a well, comprising:
deploying an expandable tubing formed of bistable cells into a well;
connecting a communication line along at least a portion of the expandable tubing; and
expanding the expandable tubing in the well, wherein routing comprises routing a cable along an exterior of the expandable tubing.
26. The method as recited in claim 24, further comprising attaching the communication line to the expandable tubing as the expandable tubing is deployed in the well.
27. The method as recited in claim 24, further comprising forming a communication line passageway in the expandable tubing to receive the communication line.
28. The method as recited in claim 27, wherein forming comprises forming the communication line A method of routing a communication line in a well, comprising:
deploying an expandable tubing formed of bistable cells into a well;
connecting a communication line along at least a portion of the expandable tubing;
expanding the expandable tubing in the well; and
forming a communication line passageway in the expandable tubing to receive the communication line along a thick strut formed between a plurality of bistable cells.
29. The method as recited in claim 24 28, further comprising providing a device attached to the expandable tubing.
30. The method as recited in claim 29, wherein providing comprises attaching a sensor.
31. The method as recited in claim 29, wherein providing comprises attaching an instrument.
Description
CROSS REFERENCE TO RELATED APPLICATIONS

The following is a continuation based on and claims the priority of patent application Ser. No. 09/973,442, filed Oct. 9, 2001, now U.S. Pat. No. 6,799,637 which was based on and claimed the priority of provisional application No. 60/242,276, filed Oct. 20, 2000 and provisional application No. 60/263,941, filed Jan. 24, 2001.

FIELD OF THE INVENTION

This invention relates to equipment that can be used in the drilling and completion of wellbores in an underground formation and in the production of fluids from such wells.

BACKGROUND OF THE INVENTION

Fluids such as oil, natural gas and water are obtained from a subterranean geologic formation (a “reservoir”) by drilling a well that penetrates the fluid-bearing formation. Once the well has been drilled to a certain depth the borehole wall must be supported to prevent collapse. Conventional well drilling methods involve the installation of a casing string and cementing between the casing and the borehole to provide support for the borehole structure. After cementing a casing string in place, the drilling to greater depths can commence. After each subsequent casing string is installed, the next drill bit must pass through the inner diameter of the casing. In this manner each change in casing requires a reduction in the borehole diameter. This repeated reduction in the borehole diameter creates a need for very large initial borehole diameters to permit a reasonable pipe diameter at the depth where the wellbore penetrates the producing formation. The need for larger boreholes and multiple casing strings results in more time, material and expense being used than if a uniform size borehole could be drilled from the surface to the producing formation.

Various methods have been developed to stabilize or complete uncased boreholes. U.S. Pat. No. 5,348,095 to Worrall et al. discloses a method involving the radial expansion of a casing string to a configuration with a larger diameter. Very large forces are needed to impart the radial deformation desired in this method. In an effort to decrease the forces needed to expand the casing string, methods that involve expanding a liner that has longitudinal slots cut into it have been proposed (U.S. Pat. Nos. 5,366,012 and 5,667,011). These methods involve the radial deformation of the slotted liner into a configuration with an increased diameter by running an expansion mandrel through the slotted liner. These methods still require significant amounts of force to be applied throughout the entire length of the slotted liner.

A problem sometimes encountered while drilling a well is the loss of drilling fluids into subterranean zones. The loss of drilling fluids usually leads to increased expenses but can result in a borehole collapse and a costly “fishing” job to recover the drill string or other tools that were in the well. Various additives are commonly used within the drilling fluids to help seal off loss circulation zones, such as cottonseed hulls or synthetic fibers.

Once a well is put in production an influx of sand from the producing formation can lead to undesired fill within the wellbore and can damage valves and other production related equipment. Many methods have been attempted for sand control.

The present invention is directed to overcoming, or at least reducing the effects of one or more of the problems set forth above, and can be useful in other applications as well.

SUMMARY OF THE INVENTION

According to the present invention, a technique is provided for use of an expandable bistable device in a borehole. The bistable device is stable in a first contracted configuration and a second expanded configuration. An exemplary device is generally tubular, having a larger diameter in the expanded configuration than in the contracted configuration. The technique also may utilize a conveyance mechanism able to transport the bistable device to a location in a subterranean borehole. Furthermore, the bistable device can be constructed in various configurations for a variety of applications.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will hereafter be described with reference to the accompanying drawings, wherein like reference numerals denote like elements, and:

FIGS. 1A and 1B are illustrations of the forces imposed to make a bistable structure;

FIG. 2A and 2B show force-deflection curves of two bistable structures;

FIGS. 3A-3F illustrate expanded and collapsed states of three bistable cells with various thickness ratios;

FIGS. 4A and 4B illustrate a bistable expandable tubular in its expanded and collapsed states;

FIGS. 4C and 4D illustrate a bistable expandable tubular in collapsed and expanded states within a wellbore;

FIGS. 5A and 5B illustrate an expandable packer type of deployment device;

FIGS. 6A and 6B illustrate a mechanical packer type of deployment device;

FIGS. 7A-7D illustrate an expandable swage type of deployment device;

FIGS. 8A-8D illustrate a piston type of deployment device;

FIGS. 9A and 9B illustrate a plug type of deployment device;

FIGS. 10A and 10B illustrate a ball type of deployment device;

FIG. 11 is a schematic of a wellbore utilizing an expandable bistable tubular;

FIG. 12 illustrates a motor driven radial roller deployment device; and

FIG. 13 illustrates a hydraulically driven radial roller deployment device.

FIG. 14 illustrates a bistable expandable tubular having a wrapping;

FIG. 14A is a view similar to FIG. 14 in which the wrapping comprises a screen;

FIG. 14B is a view similar to FIG. 14 showing another alternate embodiment;

FIG. 14C is a view similar to FIG. 14 showing another alternate embodiment;

FIG. 14D is a view similar to FIG. 14 showing another alternate embodiment;

FIG. 14E is a view similar to FIG. 14 showing another alternate embodiment;

FIG. 15 is a perspective view of an alternative embodiment of the present invention.

FIG. 15A is a cross-sectional view of an alternative embodiment of the present invention.

FIG. 16 is a partial perspective view of an alternative embodiment of the present invention.

FIGS. 17A-B are a partial perspective view and a partial cross-sectional end view respectively of an alternative embodiment of the present invention.

FIG. 18 is a partial cross-sectional end view of an alternative embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Bistable devices used in the present invention can take advantage of a principle illustrated in FIGS. 1A and 1B. FIG. 1A shows a rod 10 fixed at each end to rigid supports 12. If the rod 10 is subjected to an axial force it begins to deform as shown in FIG. 1B. As the axial force is increased rod 10 ultimately reaches its Euler buckling limit and deflects to one of the two stable positions shown as 14 and 15. If the buckled rod is now clamped in the buckled position, a force at right angles to the long axis can cause the rod to move to either of the stable positions but to no other position. When the rod is subjected to a lateral force it must move through an angle β before deflecting to its new stable position.

Bistable systems are characterized by a force deflection curve such as those shown in FIGS. 2A and 2B. The externally applied force 16 causes the rod 10 of FIG. 1B to move in the direction X and reaches a maximum 18 at the onset of shifting from one stable configuration to the other. Further deflection requires less force because the system now has a negative spring rate and when the force becomes zero the deflection to the second stable position is spontaneous.

The force deflection curve for this example is symmetrical and is illustrated in FIG. 2A. By introducing either a precurvature to the rod or an asymmetric cross section the force deflection curve can be made asymmetric as shown in FIG. 2B. In this system the force 19 required to cause the rod to assume one stable position is greater than the force 20 required to cause the reverse deflection. The force 20 must be greater than zero for the system to have bistable characteristics.

Bistable structures, sometimes referred to as toggle devices, have been used in industry for such devices as flexible discs, over center clamps, hold-down devices and quick release systems for tension cables (such as in sailboat rigging backstays).

Instead of using the rigid supports as shown in FIGS. 1A and 1B, a cell can be constructed where the restraint is provided by curved struts connected at each end as shown in FIGS. 3A-3F. If both struts 21 and 22 have the same thickness as shown in FIGS. 3A and 3B, the force deflection curve is linear and the cell lengthens when compressed from its open position FIG. 3B to its closed position FIG. 3A. If the cell struts have different thicknesses, as shown in FIGS. 3C-3F, the cell has the force deflection characteristics shown in FIG. 2B, and does not change in length when it moves between its two stable positions. An expandable bistable tubular can thus be designed so that as the radial dimension expands, the axial length remains constant. In one example, if the thickness ratio is over approximately 2:1; the heavier strut resists longitudinal changes. By changing the ratio of thick-to-thin strut dimensions, the opening and closing forces can be changed. For example, FIGS. 3C and 3D illustrated a thickness ratio of approximately 3:1, and FIGS. 3E and 3F illustrate a thickness ratio of approximately 6:1.

An expandable bore bistable tubular, such as casing, a tube, a patch, or pipe, can be constructed with a series of circumferential bistable connected cells 23 as shown in FIGS. 4A and 4B, where each thin strut 21 is connected to a thick strut 22. The longitudinal flexibility of such a tubular can be modified by changing the length of the cells and by connecting each row of cells with a compliant link. Further, the force deflection characteristics and the longitudinal flexibility can also be altered by the design of the cell shape. FIG. 4A illustrates an expandable bistable tubular 24 in its expanded configuration while FIG. 4B illustrates the expandable bistable tubular 24 in its contracted or collapsed configuration. Within this application the term “collapsed” is used to identify the configuration of the bistable element or device in the stable state with the smallest diameter, it is not meant to imply that the element or device is damaged in any way. In the collapsed state, bistable tubular 24 is readily introduced into a wellbore 29, as illustrated in FIG. 4C. Upon placement of the bistable tubular 24 at a desired wellbore location, it is expanded, as illustrated in FIG. 4D.

The geometry of the bistable cells is such that the tubular cross-section can be expanded in the radial direction to increase the overall diameter of the tubular. As the tubular expands radially, the bistable cells deform elastically until a specific geometry is reached. At this point the bistable cells move, e.g. snap, to a final expanded geometry. With some materials and/or bistable cell designs, enough energy can be released in the elastic deformation of the cell (as each bistable cell snaps past the specific geometry) that the expanding cells are able to initiate the expansion of adjoining bistable cells past the critical bistable cell geometry. Depending on the deflection curves, a portion or even an entire length of bistable expandable tubular can be expanded from a single point.

In like manner if radial compressive forces are exerted on an expanded bistable tubular, it contracts radially and the bistable cells deform elastically until a critical geometry is reached. At this point the bistable cells snap to a final collapsed structure. In this way the expansion of the bistable tubular is reversible and repeatable. Therefore the bistable tubular can be a reusable tool that is selectively changed between the expanded state as shown in FIG. 4A and the collapsed state as shown in FIG. 4B.

In the collapsed state, as in FIG. 4B, the bistable expandable tubular is easily inserted into the wellbore and placed into position. A deployment device is then used to change the configuration from the collapsed state to the expanded state.

In the expanded state, as in FIG. 4A, design control of the elastic material properties of each bistable cell can-be such that a constant radial force can be applied by the tubular wall to the constraining wellbore surface. The material properties and the geometric shape of the bistable cells can be designed to give certain desired results.

One example of designing for certain desired results is an expandable bistable tubular string with more than one diameter throughout the length of the string. This can be useful in boreholes with varying diameters, whether designed that way or as a result of unplanned occurrences such as formation washouts or keyseats within the borehole. This also can be beneficial when it is desired to have a portion of the bistable expandable device located inside a cased section of the well while another portion is located in an uncased section of the well. FIG. 11 illustrates one example of this condition. A wellbore 40 is drilled from the surface 42 and comprises a cased section 44 and an openhole section 46. An expandable bistable device 48 having segments 50, 52 with various diameters is placed in the well. The segment with a larger diameter 50 is used to stabilize the openhole section 46 of the well, while the segment having a reduced diameter 52 is located inside the cased section 44 of the well.

Bistable collars or connectors 24A (see FIG. 4C) can be designed to allow sections of the bistable expandable tubular to be joined together into a string of useful lengths using the same principle as illustrated in FIG. 4A and 4B. This bistable connector 24A also incorporates a bistable cell design that allows it to expand radially using the same mechanism as for the bistable expandable tubular component. Exemplary bistable connectors have a diameter slightly larger than the expandable tubular sections that are being joined. The bistable connector is then placed over the ends of the two sections and mechanically attached to the expandable tubular sections. Mechanical fasteners such as screws, rivets or bands can be used to connect the connector to the tubular sections. The bistable connector typically is designed to have an expansion rate that is compatible with the expandable tubular sections, so that it continues to connect the two sections after the expansion of the two segments and the connector.

Alternatively, the bistable connector can have a diameter smaller than the two expandable tubular sections joined. Then, the connector is inserted inside of the ends of the tubulars and mechanically fastened as discussed above. Another embodiment would involve the machining of the ends of the tubular sections on either their inner or outer surfaces to form an annular recess in which the connector is located. A connector designed to fit into the recess is placed in the recess. The connector would then be mechanically attached to the ends as described above. In this way the connector forms a relatively flush-type connection with the tubular sections.

A conveyance device 31 transports the bistable expandable tubular lengths and bistable connectors into the wellbore and to the correct position. (See FIGS. 4C and 4D). The conveyance device may utilize one or more mechanisms such as wireline cable, coiled tubing, coiled tubing with wireline conductor, drill pipe, tubing or casing.

A deployment device 33 can be incorporated into the bottom hole assembly to expand the bistable expandable tubular and connectors. (See FIGS. 4C and 4D). Deployment devices can be of numerous types such as an inflatable packer element, a mechanical packer element, an expandable swage, a piston apparatus, a mechanical actuator, an electrical solenoid, a plug type apparatus, e.g. a conically shaped device pulled or pushed through the tubing, a ball type apparatus or a rotary type expander as further discussed below.

An inflatable packer element is shown in FIGS. 5A and 5B and is a device with an inflatable bladder, element, or bellows incorporated into the bistable expandable tubular system bottom hole assembly. In the illustration of FIG. 5A, the inflatable packer element 25 is located inside the entire length, or a portion, of the initial collapsed state bistable tubular 24 and any bistable expandable connectors (not shown). Once the bistable expandable tubular system is at the correct deployment depth, the inflatable packer element 25 is expanded radially by pumping fluid into the device as shown in FIG. 5B. The inflation fluid can be pumped from the surface through tubing or drill pipe, a mechanical pump, or via a downhole electrical pump which is powered via wireline cable. As the inflatable packer element 25 expands, it forces the bistable expandable tubular 24 to also expand radially. At a certain expansion diameter, the inflatable packer element causes the bistable cells in the tubular to reach a critical geometry where the bistable “snap” effect is initiated, and the bistable expandable tubular system expands to its final diameter. Finally the inflatable packer element 25 is deflated and removed from the deployed bistable expandable tubular 24.

A mechanical packer element is shown in FIGS. 6A and 6B and is a device with a deformable plastic element 26 that expands radially when compressed in the axial direction. The force to compress the element can be provided through a compression mechanism 27, such as a screw mechanism, cans, or a hydraulic piston. The mechanical packer element deploys the bistable expandable tubulars and connectors in the same way as the inflatable packer element. The deformable plastic element 26 applies an outward radial force to the inner circumference of the bistable expandable tubulars and connectors, allowing them in turn to expand from a contracted position (see FIG. 6A) to a final deployment diameter (see FIG. 6B).

An expandable swage is shown in FIGS. 7A-7D and comprises a series of fingers 28 that are arranged radially around a conical mandrel 30. FIGS. 7A and 7C show side and top views respectively. When the mandrel 30 is pushed or pulled through the fingers 28 they expand radially outwards, as illustrated in FIGS. 7B and 7D. An expandable swage is used in the same manner as a mechanical packer element to deploy a bistable expandable tubular and connector.

A piston type apparatus is shown in FIGS. 8A-8D and comprises a series of pistons 32 facing radially outwardly and used as a mechanism to expand the bistable expandable tubulars and connectors. When energized, the pistons 32 apply a radially directed force to deploy the bistable expandable tubular assembly as per the inflatable packer element. FIGS. 8A and 8C illustrate the pistons retracted while FIGS. 8B and 8D show the pistons extended. The piston type apparatus can be actuated hydraulically, mechanically or electrically.

A plug type actuator is illustrated in FIGS. 9A and 9B and comprises a plug 34 that is pushed or pulled through the bistable expandable tubulars 24 or connectors as shown in FIG. 9A. The plug is sized to expand the bistable cells past their critical point where they will snap to a final expanded diameter as shown in FIG. 9B.

A ball type actuator is shown in FIGS. 10A and 10B and operates when an oversized ball 36 is pumped through the middle of the bistable expandable tubulars 24 and connectors. To prevent fluid losses through the cell slots, an expandable elastomer based liner 38 is run inside the bistable expandable tubular system. The liner 38 acts as a seal and allows the hall 36 to be hydraulically pumped through the bistable tubular 24 and connectors. The effect of pumping the ball 36 through the bistable expandable tubulars 24 and connectors is to expand the cell geometry beyond the critical bistable point, allowing full expansion to take place as shown in FIG. 10B. Once the bistable expandable tubulars and connectors are expanded, the elastomer sleeve 38 and ball 36 are withdrawn.

Radial roller type actuators also can be used to expand the bistable tubular sections. FIG. 12 illustrates a motor driven expandable radial roller tool. The tool comprises one or more sets of arms 58 that are expanded to a set diameter by means of a mechanism and pivot. On the end of each set of arms is a roller 60. Centralizers 62 can be attached to the tool to locate it correctly inside the wellbore and the bistable tubular 24. A motor 64 provides the force to rotate the whole assembly, thus turning the roller(s) circumferentially inside the wellbore. The axis of the roller(s) is such as to allow the roller(s) to rotate freely when brought into contact with the inner surface of the tubular. Each roller can be conically-shaped in section to increase the contact area of roller surface to the inner wall of the tubular. The rollers are initially retracted and the tool is run inside the collapsed bistable tubular. The tool is then rotated by the motor 64, and rollers 60 are moved outwardly to contact the inner surface of the bistable tubular. Once in contact with the tubular, the rollers are pivoted outwardly a greater distance to apply an outwardly radial force to the bistable tubular. The outward movement of the rollers can be accomplished via centrifugal force or an appropriate actuator mechanism coupled between the motor 64 and the rollers 60.

The final pivot position is adjusted to a point where the bistable tubular can be expanded to the final diameter. The tool is then longitudinally moved through the collapsed bistable tubular, while the motor continues to rotate the pivot arms and rollers. The rollers follow a shallow helical path 66 inside the bistable tubular, expanding the bistable cells in their path. Once the bistable tubular is deployed, the tool rotation is stopped and the roller retracted. The tool is then withdrawn from the bistable tubular by a conveyance device 68 that also can be used to insert the tool.

FIG. 13 illustrates a hydraulically driven radial roller deployment device. The tool comprises one or more rollers 60 that are brought into contact with the inner surface of the bistable tubular by means of a hydraulic piston 70. The outward radial force applied by the rollers can be increased to a point where the bistable tubular expands to its final diameter. Centralizers 62 can be attached to the tool to locate it correctly inside the wellbore and bistable tubular 24. The rollers 60 are initially retracted and the tool is run into the collapsed bistable tubular 24. The rollers 60 are then deployed and push against the inside wall of the bistable tubular 24 to expand a portion of the tubular to its final diameter. The entire tool is then pushed or pulled longitudinally through the bistable tubular 24 expanding the entire length of bistable cells 23. Once the bistable tubular 24 is deployed in its expanded state, the rollers 60 are retracted and the tool is withdrawn from the wellbore by the conveyance device 68 used to insert it. By altering the axis of the rollers 60, the tool can be rotated via a motor as it travels longitudinally through the bistable tubular 24.

Power to operate the deployment device can be drawn from one or a combination of sources such as: electrical power supplied either from the surface or stored in a battery arrangement along with the deployment device, hydraulic power provided by surface or downhole pumps, turbines or a fluid accumulator, and mechanical power supplied through an appropriate linkage actuated by movement applied at the surface or stored downhole such as in a spring mechanism.

The bistable expandable tubular system is designed so the internal diameter of the deployed tubular is expanded to maintain a maximum cross-sectional area along the expandable tubular. This feature enables mono-bore wells to be constructed and facilitates elimination of problems associated with traditional wellbore casing systems where the casing outside diameter must be stepped down many times, restricting access, in long wellbores.

The bistable expandable tubular system can be applied in numerous applications such as an expandable open hole liner (see FIG. 14) where the bistable expandable tubular 24 is used to support an open hole formation by exerting an external radial force on the wellborn surface. As bistable tubular 24 is radially expanded in the direction of arrows 71, the tubular moves into contact with the surface forming wellbore 29. These radial forces help stabilize the formations and allow the drilling of wells with fewer conventional casing strings. The open hole liner also can comprise a material, e.g. a wrapping 72, that reduces the rate of fluid loss from the wellbore into the formations. The wrapping 72 can be made from a variety of materials including expandable metallic and/or elastomeric materials. By reducing fluid loss into the formations, the expense of drilling fluids can be reduced and the risk of losing circulation and/or borehole collapse can be minimized.

Liners also can be used within wellbore tubulars for purposes such as corrosion protection. One example of a corrosive environment is the environment that results when carbon dioxide is used to enhance oil recovery from a producing formation. Carbon dioxide (CO2) readily reacts with any water (H2O) that is present to form carbonic acid (H2CO3). Other acids can also be generated, especially if sulfur compounds are present. Tubulars used to inject the carbon dioxide as well as those used in producing wells are subject to greatly elevated corrosion rates. The present invention can be used for placing protective liners, a bistable tubular 24, within an existing tubular (e.g., tubular 73 illustrated with dashed lines in FIG. 14) to minimize the corrosive effects and to extend the useful life of the wellbore tubulars.

Another application involves use of the bistable tubular 24 illustrated in FIG. 14 as an expandable perforated liner. The open bistable cells in the bistable expandable tubular allow unrestricted flow from the formation while providing a structure to stabilize the borehole.

Still another application of the bistable tubular 24 is as an expandable sand screen where the bistable cells are sized to act as a sand control screen or an expandable screen element 74 can be affixed to the bistable expandable tubular as illustrated in FIG. 14A in its collapsed state. The expandable screen element 74 can be formed as a wrapping around bistable tubular 24. It has been found that the imposition of hoop stress forces onto the wall of a borehole will in itself help stabilize the formation and reduce or eliminate the influx of sand from the producing zones, even if no additional screen element is used.

Another application of the bistable tubular 24 is as a reinforced expandable liner where the bistable expandable tubular cell structure is reinforced with a cement or resin 75, as illustrated in FIG. 14B. The cement or resin 75 provides increased structural support or hydraulic isolation from the formation.

The bistable expandable tubular 24 also can be used as an expandable connection system to join traditional lengths of casing 76a or 76b of different diameters as illustrated in FIG. 14C. the tubular 24 also can be used as a structural repair joint to provide increased strength for existing sections of casing.

Another application includes using the bistable expandable tubular 24 as an anchor within the wellbore from which other tools or casings can be attached, or as a “fishing” tool in which the bistable characteristics are utilized to retrieve items lost or stuck in a wellbore. The bistable expandable tubular 24 in its collapsed configuration is inserted into a lost item 77 and then expanded as indicated by arrows 78 in FIG. 14D. In the expanded configuration the bistable tubular exerts radial forces that assist in retrieving the lost item. The bistable tubular also can be run into the well in its expanded configuration, placed over and collapsed in the direction of arrows 79 around lost item 77 in an attempt to attach and retrieve it as illustrated in FIG. 14E. Once lost item 77 is gripped by bistable tubular 24, it can be retrieved through wellbore 29.

The above described bistable expandable tubulars can be made in a variety of manners such as: cutting appropriately shaped paths through the wall of a tubular pipe thereby creating an expandable bistable device in its collapsed state; cutting patterns into a tubular pipe thereby creating an expandable bistable device in its expanded state and then compressing the device into its collapsed state; cutting appropriate paths through a sheet of material, rolling the material into a tubular shape and joining the ends to form an expandable bistable device in its collapsed state; or cutting patterns into a sheet of material, rolling the material into a tubular shape, joining the adjoining ends to form an expandable bistable device in its expanded state and then compressing the device into its collapsed state.

The materials of construction for the bistable expandable tubulars can include those typically used within the oil and gas industry such as carbon steel. They can also be made of specialty alloys (such as a monel, inconel, hastelloy or tungsten-based alloys) if the application requires.

The configurations shown for the bistable tubular 24 are illustrative of the operation of a basic bistable cell. Other configurations may be suitable, but the concept presented is also valid for these other geometries.

FIG. 15 illustrates an expandable tubing 80 formed of bi-stable cells 82. The tubing 80 defines a thinned portion 84 (best seen in FIG. 15) which may be in the form of a slot, as shown, a flattening, or other thinning of a portion of the tubing 80. The thinned portion 84 extends generally longitudinally and may be linear, helical, or follow some other circuitous path. In one embodiment, the thinned portion extends from one end of the tubing to the other to provide a communication line path 84 for the tubing 80. In such an embodiment, a communication line 86 may pass through the communication line path 84 along the tubing 80. In this way, the communication line 86 stays within the general outside diameter of the tubing 80 or extends only slightly outside this diameter. Although the tubing is shown with one thinned portion 84, it may include a plurality that are spaced about the circumference of the tubing 80. The thinned portion 84 may be used to house a conduit (not shown) through which communication lines 86 pass or which is used for the transport of fluids or other materials, such as mixtures of fluids and solids.

As used herein, the term “communication line” refers to any type of communication line such as electric, hydraulic, fiber optic, combinations of these, and the like.

FIG. 15A illustrates an exemplary thinned portion 84 designed to receive a device 88. As with the cable placement, device 88 is at least partially housed in the thinned portion of the tubing 80 so that the extent to which it extends beyond the outer diameter of the tubing 80 is lessened. Examples of certain alternative embodiments of devices 88 are electrical devices, measuring devices, meters, gauges, sensors. More specific examples comprise valves, sampling devices, a device used in intelligent or smart well completion, temperature sensors, pressure sensors, flow-control devices, flow rate measurement devices, oil/water/gas ratio measurement devices, scale detectors, equipment sensors (e.g., vibration sensors), sand detection sensors, water detection sensors, data recorders, viscosity sensors, density sensors, bubble point sensors, composition sensors, resistivity array devices and sensors, acoustic devices and sensors, other telemetry devices, near infrared sensors, gamma ray detectors. H2S detectors, CO2 detectors, downhole memory units, downhole controllers. Examples of measurements that the devices might make are flow rate, pressure, temperature, differential pressure, density, relative amounts of liquid, gas, and solids, water cut, oil-water ratio, and other measurements.

As shown in the figure, the device 88 may be exposed to fluid inside and outside of tubing 80 via openings formed by the cells 82. Thus, the thinned portion 84 may bridge openings as well as linkages 21, 22 of the cells 82. Also note that the communication line 86 and associated communication line path 84 may extend a portion of the length of the tubing 80 in certain alternative designs. For example, if a device 88 is placed intermediate the ends of the tubing 80, the communication line passageway 84 may only need to extend from an end of the tubing to the position of the device 80.

FIG. 16 illustrates an expandable tubing 80 formed of bi-stable cells 82 having thin struts 21 and thick struts 22. At least one of the thick struts (labeled as 90) is relatively wider than other struts of the tubing 80. The wider strut 90 may be used for various purposes such as routing of communication lines, including cables, or devices, such as sensor arrays.

FIGS. 17A and 17B illustrate tubing 80 having a strut 90 that is relatively wider than the other thick struts 22. A passageway 92 formed in the strut 90 facilitates placement of a communication line in the well and through the tubing 80 and may be used for other purposes. FIG. 17B is a cross sectional view showing the passageway 92. Passageway 92 is an alternative embodiment of a communication line path 84. A passageway 94 may be configured to generally follow the curvature of a strut, e.g. one of the thick struts 22, as further illustrated in FIGS. 17A and 17B.

FIG. 18 illustrates a thinned portion 84 having a dovetail design with a relatively narrower opening. The communication line 86 is formed so that it fits through the relatively narrow opening into the wider, lower portion, e.g. by inserting one side edge and then the other. Communication line 86 is held in place due to the dovetail design as is apparent from the figures. The width of the communication line 86 is greater than the width of the opening. Note that the communication line 86 may comprise a bundle of lines which may be of the same or different forms (e.g., a hydraulic, an electric, and a fiber optic line bundled together). Also, connectors for connecting adjacent tubings may incorporate a connection for the communication lines.

Note that the communication line passageway 84 may be used in conjunction with other types of expandable tubings, such as those of the expandable slotted liner type disclosed in U.S. Pat. No. 5,366,012, issued Nov. 22, 1994 to Lohbeck, the folded tubing types of U.S. Pat. No. 3,489,220, issued Jan. 13, 1970 to Kinley, U.S. Pat. No. 5,337,823, issued Aug. 16, 1994 to Nobileau, U.S. Pat. No. 3,203,451, issued Aug. 31, 1965 to Vincent.

The particular embodiments disclosed herein are illustrative only, as the invention may be modified and practiced in different but equivalent manners apparent to those skilled in the art having the benefit of the teachings herein. Furthermore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below. It is therefore evident that the particular embodiments disclosed above may be altered or modified and all such variations are considered within the scope and spirit of the invention. Accordingly, the protection sought herein is as set forth in the claims below.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US26125222 May 188218 Jul 1882 Drive-well point or strainer
US3804193 Apr 1888 Ooooog
US99719125 Oct 19094 Jul 1911Henry C HogarthWell-casing.
US113580913 Apr 1915 Well-strainer.
US12294379 Oct 191612 Jun 1917William H FosterStrainer.
US12338881 Sep 191617 Jul 1917Frank W A FinleyArt of well-producing or earth-boring.
US127621310 Jan 191820 Aug 1918Bert A HareOil-well strainer.
US13012851 Sep 191622 Apr 1919Frank W A FinleyExpansible well-casing.
US131460015 Nov 19182 Sep 1919 Flexible shaft
US164790729 Oct 19261 Nov 1927Doty Dennis DWell casing
US194507910 Feb 193130 Jan 1934Midland Steel Prod CoMethod of forming axle housings
US19815255 Dec 193320 Nov 1934Price Bailey EMethod of and apparatus for drilling oil wells
US201668321 May 19348 Oct 1935Alfred S BlackFishing tool
US205012824 May 19344 Aug 1936Schlumberger Well Surv CorpThermometric method of locating the top of the cement behind a well casing
US217184025 Oct 19375 Sep 1939Baggah CorpMethod for determining the position of cement slurry in a well bore
US22177088 May 193915 Oct 1940Oil Equipment Engineering CorpWell cementing method and apparatus
US222020531 Mar 19395 Nov 1940Standard Oil Dev CoMethod of locating detectable cement in a borehole
US237138514 Dec 194213 Mar 1945Standard Oil Dev CoGravel-packed liner and perforation assembly
US253096617 Apr 194321 Nov 1950Standard Oil Dev CoWell completion apparatus
US26774668 Feb 19514 May 1954Proportioncers IncCore for filter elements
US269616910 Apr 19487 Dec 1954Phillips Petroleum CoShaped charge well-pipe perforator
US27605815 Feb 195428 Aug 1956Johnston Testers IncWell completion tool
US276965510 Apr 19536 Nov 1956Holmes Lloyd RInternal pipe gripping tool
US281202524 Jan 19555 Nov 1957Doherty Wilfred TExpansible liner
US283532810 Dec 195420 May 1958Thompson George AWell point
US299001724 Jun 195827 Jun 1961Moretrench CorpWellpoint
US306912520 Jan 195818 Dec 1962Robertshaw Fulton Controls CoHeat actuated snap acting valve
US31791689 Aug 196220 Apr 1965Pan American Petroleum CorpMetallic casing liner
US320345125 Jun 196431 Aug 1965Pan American Petroleum CorpCorrugated tube for lining wells
US325384210 Dec 196331 May 1966Thiokol Chemical CorpShear key joint
US329709215 Jul 196410 Jan 1967Pan American Petroleum CorpCasing patch
US33535994 Aug 196421 Nov 1967Gulf Oil CorpMethod and apparatus for stabilizing formations
US33584928 Sep 196519 Dec 1967Embassy Ind IncMandrel construction
US338975223 Oct 196525 Jun 1968Schlumberger Technology CorpZone protection
US341405524 Oct 19663 Dec 1968Mobil Oil CorpFormation consolidation using a combustible liner
US34153219 Sep 196610 Dec 1968Dresser IndShaped charge perforating apparatus and method
US34190808 Sep 196731 Dec 1968Schlumberger Technology CorpZone protection apparatus
US34632477 Aug 196726 Aug 1969Robbins & Assoc James SDrill stem breakout apparatus
US348262920 Jun 19689 Dec 1969Shell Oil CoMethod for the sand control of a well
US34892202 Aug 196813 Jan 1970J C KinleyMethod and apparatus for repairing pipe in wells
US35073405 Feb 196821 Apr 1970Schlumberger Technology CorpApparatus for well completion
US350858729 Sep 196628 Apr 1970Hans A MauchTubular structural member
US355621918 Sep 196819 Jan 1971Phillips Petroleum CoEccentric gravel-packed well liner
US35615292 Oct 19689 Feb 1971Electric Wireline SpecialtiesThrough-tubing nonretrievable bridge plug
US360473212 May 196914 Sep 1971Lynes IncInflatable element
US36577448 May 197025 Apr 1972Univ MinnesotaMethod for fixing prosthetic implants in a living body
US367270519 Jun 197027 Jun 1972Garren CorpPipe jack
US369211422 Oct 197019 Sep 1972Shell Oil CoFluidized sandpacking
US378519310 Apr 197115 Jan 1974Kinley JLiner expanding apparatus
US38168946 Nov 197218 Jun 1974Amoco Prod CoMulti-layer well sand screen
US386497018 Oct 197311 Feb 1975Schlumberger Technology CorpMethods and apparatus for testing earth formations composed of particles of various sizes
US38987179 Oct 197312 Aug 1975Peyer SiegfriedReleasable paper clip
US391367619 Jun 197421 Oct 1975Baker Oil Tools IncMethod and apparatus for gravel packing
US392640918 Mar 197416 Dec 1975Dresser IndSelective well treating and gravel packing apparatus
US39630767 Mar 197515 Jun 1976Baker Oil Tools, Inc.Method and apparatus for gravel packing well bores
US406493812 Jan 197627 Dec 1977Standard Oil Company (Indiana)Well screen with erosion protection walls
US406595315 Nov 19763 Jan 1978Mannesmann AktiengesellschaftMechanical tube expander
US418585624 Jul 197829 Jan 1980Mcevoy Oilfield Equipment CompanyPipe joint with remotely operable latch
US425352221 May 19793 Mar 1981Otis Engineering CorporationGravel pack tool
US42955279 Apr 197920 Oct 1981Ruesse Rolf AProcess and device for the centering of casings as used for underground drilling
US430989110 Mar 198012 Jan 1982Texaco Inc.Double action, self-contained swages for joining two small tubes
US43379696 Oct 19806 Jul 1982Schlumberger Technology Corp.Extension member for well-logging operations
US437516422 Apr 19811 Mar 1983Halliburton CompanyFormation tester
US44011589 Nov 198130 Aug 1983Baker International CorporationOne trip multi-zone gravel packing apparatus
US449599711 May 198329 Jan 1985Conoco Inc.Well completion system and process
US45414866 Jun 198317 Sep 1985Baker Oil Tools, Inc.One trip perforating and gravel pack system
US45535951 Jun 198419 Nov 1985Texaco Inc.Method for forming a gravel packed horizontal well
US45582196 Jul 198210 Dec 1985Dresser Industries, Inc.Method and apparatus for determining flow characteristics within a well
US455874213 Jul 198417 Dec 1985Texaco Inc.Method and apparatus for gravel packing horizontal wells
US456653826 Mar 198428 Jan 1986Baker Oil Tools, Inc.Fail-safe one trip perforating and gravel pack system
US457860822 Mar 198525 Mar 1986Alsthom-AtlantiqueCoupling for electric motors
US45805681 Oct 19848 Apr 1986Cook, IncorporatedPercutaneous endovascular stent and method for insertion thereof
US46000371 Jul 198515 Jul 1986Texas Eastern Drilling Systems, Inc.Flexible drill pipe
US460640820 Feb 198519 Aug 1986Halliburton CompanyMethod and apparatus for gravel-packing a well
US462612926 Jul 19842 Dec 1986Antonius B. KothmanSub-soil drainage piping
US465577111 Apr 19837 Apr 1987Shepherd Patents S.A.Prosthesis comprising an expansible or contractile tubular body
US46570797 Mar 198514 Apr 1987Nagaoka Kanaai Kabushiki KaishaScreen
US466590621 May 198619 May 1987Raychem CorporationMedical devices incorporating sim alloy elements
US46659186 Jan 198619 May 1987Garza Gilbert AProsthesis system and method
US47066595 Dec 198417 Nov 1987Regents Of The University Of MichiganFlexible connecting shaft for intramedullary reamer
US47336657 Nov 198529 Mar 1988Expandable Grafts PartnershipExpandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft
US47397623 Nov 198626 Apr 1988Expandable Grafts PartnershipExpandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft
US474020710 Sep 198626 Apr 1988Kreamer Jeffry WIntralumenal graft
US47839956 Mar 198715 Nov 1988Oilfield Service Corporation Of AmericaLogging tool
US48097923 Mar 19887 Mar 1989National-OilwellSupport system for a top driven drilling unit
US48321211 Oct 198723 May 1989The Trustees Of Columbia University In The City Of New YorkMethods for monitoring temperature-vs-depth characteristics in a borehole during and after hydraulic fracture treatments
US486606222 Apr 198712 Sep 1989Richter Gedeon Vegyeszeti Gyar1,4-disubstituted piperazines, pharmaceutical compositions thereof and method of use
US48743277 Nov 198817 Oct 1989Halliburton Logging Services, Inc.Universal cable head for a multiconductor logging cable
US488606219 Oct 198712 Dec 1989Medtronic, Inc.Intravascular radially expandable stent and method of implant
US494599123 Aug 19897 Aug 1990Mobile Oil CorporationMethod for gravel packing wells
US495025825 Jan 198921 Aug 1990Japan Medical Supply Co., Ltd.Plastic molded articles with shape memory property
US49698907 Jul 198813 Nov 1990Nippon Zeon Co., Ltd.Catheter
US497614217 Oct 198911 Dec 1990Baroid Technology, Inc.Borehole pressure and temperature measurement system
US499015519 May 19895 Feb 1991Wilkoff Howard MSurgical stent method and apparatus
US499407122 May 198919 Feb 1991Cordis CorporationBifurcating stent apparatus and method
US510241728 Mar 19887 Apr 1992Expandable Grafts PartnershipExpandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft
US510440420 Jun 199114 Apr 1992Medtronic, Inc.Articulated stent
US510792729 Apr 199128 Apr 1992Otis Engineering CorporationOrienting tool for slant/horizontal completions
US51193739 Feb 19902 Jun 1992Luxcom, Inc.Multiple buffer time division multiplexing ring
US514136018 Sep 198925 Aug 1992David ZemanIrrigation tubing
US514737012 Jun 199115 Sep 1992Mcnamara Thomas ONitinol stent for hollow body conduits
US515622027 Aug 199020 Oct 1992Baker Hughes IncorporatedWell tool with sealing means
US516332127 Sep 199017 Nov 1992Baroid Technology, Inc.Borehole pressure and temperature measurement system
US517437911 Feb 199129 Dec 1992Otis Engineering CorporationGravel packing and perforating a well in a single trip
US518625516 Jul 199116 Feb 1993Corey John CFlow monitoring and control system for injection wells
US51923075 Feb 19929 Mar 1993Wall W HenryAngioplasty stent
US519598419 Feb 199123 Mar 1993Expandable Grafts PartnershipExpandable intraluminal graft
US519797826 Apr 199130 Mar 1993Advanced Coronary Technology, Inc.Removable heat-recoverable tissue supporting device
US521124131 Dec 199118 May 1993Otis Engineering CorporationVariable flow sliding sleeve valve and positioning shifting tool therefor
US52269132 Mar 199213 Jul 1993Corvita CorporationMethod of making a radially expandable prosthesis
US523444828 Feb 199210 Aug 1993Shadyside HospitalMethod and apparatus for connecting and closing severed blood vessels
US524319015 Nov 19917 Sep 1993Protechnics International, Inc.Radioactive tracing with particles
US528282319 Mar 19921 Feb 1994Medtronic, Inc.Intravascular radially expandable stent
US53181217 Aug 19927 Jun 1994Baker Hughes IncorporatedMethod and apparatus for locating and re-entering one or more horizontal wells using whipstock with sealable bores
US532999823 Dec 199219 Jul 1994Halliburton CompanyOne trip TCP/GP system with fluid containment means
US533782321 May 199116 Aug 1994Nobileau Philippe CPreform, apparatus, and methods for casing and/or lining a cylindrical volume
US53480957 Jun 199320 Sep 1994Shell Oil CompanyMethod of creating a wellbore in an underground formation
US53543081 May 199211 Oct 1994Beth Israel Hospital AssociationMetal wire stent
US53559484 Nov 199218 Oct 1994Sparlin Derry DPermeable isolation sectioned screen
US535594922 Apr 199318 Oct 1994Sparlin Derry DWell liner with dual concentric half screens
US53559539 Feb 199418 Oct 1994Halliburton CompanyElectromechanical shifter apparatus for subsurface well flow control
US53660127 Jun 199322 Nov 1994Shell Oil CompanyMethod of completing an uncased section of a borehole
US537710423 Jul 199327 Dec 1994Teledyne Industries, Inc.Passive seismic imaging for real time management and verification of hydraulic fracturing and of geologic containment of hazardous wastes injected into hydraulic fractures
US53778234 Jan 19943 Jan 1995Minnesota Mining And Manufacturing CompanyCompact dental dispensing tray with sliding cover
US53838926 Nov 199224 Jan 1995Meadox FranceStent for transluminal implantation
US538392623 Nov 199224 Jan 1995Children's Medical Center CorporationRe-expandable endoprosthesis
US53969574 Mar 199414 Mar 1995Halliburton CompanyWell completions with expandable casing portions
US539735519 Jul 199414 Mar 1995Stentco, Inc.Intraluminal stent
US540334124 Jan 19944 Apr 1995Solar; Ronald J.Parallel flow endovascular stent and deployment apparatus therefore
US54115075 Jan 19942 May 1995Richard Wolf GmbhInstrument for implanting and extracting stents
US541976011 Oct 199430 May 1995Pdt Systems, Inc.Medicament dispensing stent for prevention of restenosis of a blood vessel
US544937317 Mar 199412 Sep 1995Medinol Ltd.Articulated stent
US54493822 Mar 199412 Sep 1995Dayton; Michael P.Minimally invasive bioactivated endoprosthesis for vessel repair
US545089812 May 199419 Sep 1995Sparlin; Derry D.Gravity enhanced maintenance screen
US545631929 Jul 199410 Oct 1995Atlantic Richfield CompanyApparatus and method for blocking well perforations
US54921759 Jan 199520 Feb 1996Mobil Oil CorporationMethod for determining closure of a hydraulically induced in-situ fracture
US549636515 Jul 19945 Mar 1996Sgro; Jean-ClaudeAutoexpandable vascular endoprosthesis
US550001313 Jan 199519 Mar 1996Scimed Life Systems, Inc.Biodegradable drug delivery vascular stent
US551591510 Apr 199514 May 1996Mobil Oil CorporationWell screen having internal shunt tubes
US554520821 Dec 199313 Aug 1996Medtronic, Inc.Intralumenal drug eluting prosthesis
US554521022 Sep 199413 Aug 1996Advanced Coronary Technology, Inc.Method of implanting a permanent shape memory alloy stent
US555418313 Jan 199510 Sep 1996Nazari; StefanoVascular prosthesis for the substitution or internal lining of blood vessels of medium or large diameter and device for its application
US555641311 Mar 199417 Sep 1996Advanced Cardiovascular Systems, Inc.Coiled stent with locking ends
US556269012 Nov 19938 Oct 1996United States Surgical CorporationApparatus and method for performing compressional anastomoses
US556269718 Sep 19958 Oct 1996William Cook, Europe A/SSelf-expanding stent assembly and methods for the manufacture thereof
US55764853 Apr 199519 Nov 1996Serata; ShoseiSingle fracture method and apparatus for simultaneous measurement of in-situ earthen stress state and material properties
US560159318 Aug 199511 Feb 1997Willy Rusch AgStent for placement in a body tube
US56182998 Aug 19958 Apr 1997Advanced Cardiovascular Systems, Inc.Ratcheting stent
US56287877 Jun 199513 May 1997Schneider (Usa) Inc.Clad composite stent
US56410233 Aug 199524 Jun 1997Halliburton Energy Services, Inc.Shifting tool for a subterranean completion structure
US564331413 Nov 19951 Jul 1997Navius CorporationSelf-expanding stent
US566380512 Apr 19952 Sep 1997Brother Kogyo Kabushiki KaishaFacsimile device having a memory allocation system and method for allocating memory in a facsimile device
US566701116 Jan 199616 Sep 1997Shell Oil CompanyMethod of creating a casing in a borehole
US567016128 May 199623 Sep 1997Healy; Kevin E.Biodegradable stent
US569551621 Feb 19969 Dec 1997Iso Stent, Inc.Longitudinally elongating balloon expandable stent
US569797111 Jun 199616 Dec 1997Fischell; Robert E.Multi-cell stent with cells having differing characteristics
US570241921 Sep 199430 Dec 1997Wake Forest UniversityExpandable, intraluminal stents
US572378113 Aug 19963 Mar 1998Pruett; Phillip E.Borehole tracer injection and detection method
US572557029 Feb 199610 Mar 1998Boston Scientific CorporationTubular medical endoprostheses
US57255728 Aug 199710 Mar 1998Advanced Cardiovascular Systems, Inc.Radiopaque stent
US573330331 May 199531 Mar 1998Medinol Ltd.Flexible expandable stent
US575577422 Aug 199626 May 1998Corvita CorporationBistable luminal graft endoprosthesis
US57557764 Oct 199626 May 1998Al-Saadon; KhalidPermanent expandable intraluminal tubular stent
US577618125 Jul 19967 Jul 1998Medstent Inc.Expandable stent
US577618323 Aug 19967 Jul 1998Kanesaka; NozomuExpandable stent
US578512014 Nov 199628 Jul 1998Weatherford/Lamb, Inc.Tubular patch
US580658920 May 199615 Sep 1998Lang; DuaneApparatus for stabbing and threading a drill pipe safety valve
US580740419 Sep 199615 Sep 1998Medinol Ltd.Stent with variable features to optimize support and method of making such stent
US582404013 Mar 199620 Oct 1998Medtronic, Inc.Endoluminal prostheses and therapies for highly variable body lumens
US583300113 Dec 199610 Nov 1998Schlumberger Technology CorporationSealing well casings
US58425164 Apr 19971 Dec 1998Mobil Oil CorporationErosion-resistant inserts for fluid outlets in a well tool and method for installing same
US58610255 Oct 199419 Jan 1999Assistance Publique Hopitaux De ParisTubular expandable member for an intraluminal endoprosthesis, intraluminal endoprosthesis, and method of production
US58650732 Oct 19962 Feb 1999Camco International Inc.Torque machines
US58715389 Jun 199716 Feb 1999Corvita CorporationLuminal graft endoprotheses and manufacture thereof
US587290121 Jan 199716 Feb 1999Ricoh Company, Ltd.Manifold apparatus with bidirectional interface for connection to a host computer
US587644929 Mar 19962 Mar 1999Variomed AgStent for the transluminal implantation in hollow organs
US589119130 Apr 19966 Apr 1999Schneider (Usa) IncCobalt-chromium-molybdenum alloy stent and stent-graft
US589540620 Dec 199620 Apr 1999Cordis CorporationAxially flexible stent
US58969281 Jul 199627 Apr 1999Baker Hughes IncorporatedFlow restriction device for use in producing wells
US58998824 Apr 19964 May 1999Novoste CorporationCatheter apparatus for radiation treatment of a desired area in the vascular system of a patient
US59017898 Nov 199611 May 1999Shell Oil CompanyDeformable well screen
US591389721 Oct 199722 Jun 1999Cordis CorporationEndoprosthesis having multiple bridging junctions and procedure
US59186728 May 19976 Jul 1999Mcconnell; Howard T.Shroud for a well screen
US59220202 Aug 199613 Jul 1999Localmed, Inc.Tubular prosthesis having improved expansion and imaging characteristics
US592474524 May 199620 Jul 1999Petroline Wellsystems LimitedConnector assembly for an expandable slotted pipe
US592828010 Sep 199627 Jul 1999William Cook Europe A/SExpandable endovascular stent
US593437626 May 199810 Aug 1999Halliburton Energy Services, Inc.Methods and apparatus for completing wells in unconsolidated subterranean zones
US59571957 Oct 199728 Sep 1999Weatherford/Lamb, Inc.Wellbore tool stroke indicator system and tubular patch
US596429618 Sep 199712 Oct 1999Halliburton Energy Services, Inc.Formation fracturing and gravel packing tool
US597201819 Feb 199826 Oct 1999Medinol Ltd.Flexible expandable stent
US598456823 May 199616 Nov 1999Shell Oil CompanyConnector assembly for an expandable slotted pipe
US59975806 May 19977 Dec 1999Johnson & Johnson Professional, Inc.Cement restrictor including shape memory material
US600434827 Apr 199821 Dec 1999Impra, Inc.Endoluminal encapsulated stent and methods of manufacture and endoluminal delivery
US601252219 Jan 199911 Jan 2000Shell Oil CompanyDeformable well screen
US601252325 Nov 199611 Jan 2000Petroline Wellsystems LimitedDownhole apparatus and method for expanding a tubing
US601385416 Jun 199511 Jan 2000Terumo Kabushiki KaishaIndwelling stent and the method for manufacturing the same
US601736222 Jan 199725 Jan 2000Gore Enterprise Holdings, Inc.Folding self-expandable intravascular stent
US60197891 Apr 19981 Feb 2000Quanam Medical CorporationExpandable unit cell and intraluminal stent
US602098128 Dec 19951 Feb 2000Nec CorporationFacsimile apparatus which is capable of storing image information in a storage unit
US60218503 Oct 19978 Feb 2000Baker Hughes IncorporatedDownhole pipe expansion apparatus and method
US602237121 Jul 19988 Feb 2000Scimed Life Systems, Inc.Locking stent
US60275263 Oct 199722 Feb 2000Advanced Cardiovascular Systems, Inc.Stent having varied amounts of structural strength along its length
US60275275 Dec 199722 Feb 2000Piolax Inc.Stent
US60297483 Oct 199729 Feb 2000Baker Hughes IncorporatedMethod and apparatus for top to bottom expansion of tubulars
US603163710 Nov 199729 Feb 2000Mita Industrial Co., Ltd.Facsimile machine with automatic mode switching for computer interfacing
US604260629 Sep 199728 Mar 2000Cook IncorporatedRadially expandable non-axially contracting surgical stent
US604959720 Oct 199711 Apr 2000Canon Kabushiki KaishaData communication system between a personal computer and facsimile machine through an interface
US606311311 Jun 199616 May 2000William Cook Europe ApsDevice for implantation in a vessel or hollow organ lumen
US60644913 Jun 199716 May 2000Canon Kabushiki KaishaFacsimile apparatus using a small computer system interface
US606550012 Dec 199723 May 2000Petroline Wellsystems LimitedExpandable tubing
US60706713 Aug 19986 Jun 2000Shell Oil CompanyCreating zonal isolation between the interior and exterior of a well system
US608325828 May 19984 Jul 2000Yadav; Jay S.Locking stent
US609524227 Aug 19991 Aug 2000Fmc CorporationCasing hanger
US609607016 May 19961 Aug 2000Med Institute Inc.Coated implantable medical device
US610654826 Oct 199822 Aug 2000Endosystems LlcNon-foreshortening intraluminal prosthesis
US611281811 Nov 19965 Sep 2000Petroline Wellsystems LimitedDownhole setting tool for an expandable tubing
US61316625 May 199917 Oct 2000Halliburton Energy Services, Inc.Methods of completing wells utilizing wellbore equipment positioning apparatus
US613520828 May 199824 Oct 2000Halliburton Energy Services, Inc.Expandable wellbore junction
US613877620 Jan 199931 Oct 2000Hart; Christopher A.Power tongs
US614223031 Oct 19987 Nov 2000Weatherford/Lamb, Inc.Wellbore tubular patch system
US61477748 Dec 199714 Nov 2000Ricoh Company, Ltd.Multifunction interface card for interfacing a facsimile machine, secure modem, and a personal computer
US615259921 Oct 199828 Nov 2000The University Of Texas SystemsTomotherapy treatment table positioning device
US61904062 Feb 199920 Feb 2001Nitinal Development CorporationIntravascular stent having tapered struts
US619374410 Sep 199827 Feb 2001Scimed Life Systems, Inc.Stent configurations
US620356927 Jun 199720 Mar 2001Bandula WijayFlexible stent
US620691117 Nov 199727 Mar 2001Simcha MiloStent combination
US621368629 Apr 199910 Apr 2001Benton F. BaughGimbal for J-Lay pipe laying system
US622034519 Aug 199924 Apr 2001Mobil Oil CorporationWell screen having an internal alternate flowpath
US62203617 Jul 200024 Apr 2001Halliburton Energy Services, Inc.Circulating nipple and method for setting well casing
US622730313 Apr 19998 May 2001Mobil Oil CorporationWell screen having an internal alternate flowpath
US624436029 Oct 199712 Jun 2001Weatherford/Lamb, Inc.Apparatus and method for running tubulars
US625038529 Jun 199826 Jun 2001Schlumberger Technology CorporationMethod and apparatus for completing a well for producing hydrocarbons or the like
US625384413 Jul 19993 Jul 2001Lloyd Lewis WalkerSwivelling device for a downhole rod pump, and method of use thereof
US625385023 Feb 20003 Jul 2001Shell Oil CompanySelective zonal isolation within a slotted liner
US62613198 Jul 199817 Jul 2001Scimed Life Systems, Inc.Stent
US626396623 Dec 199824 Jul 2001Halliburton Energy Services, Inc.Expandable well screen
US626397213 Apr 199924 Jul 2001Baker Hughes IncorporatedCoiled tubing screen and method of well completion
US62646856 Jul 199924 Jul 2001Datascope Investment Corp.Flexible high radial strength stent
US627363413 Nov 199714 Aug 2001Shell Oil CompanyConnector for an expandable tubing string
US62814891 May 199828 Aug 2001Baker Hughes IncorporatedMonitoring of downhole parameters and tools utilizing fiber optics
US63150401 May 199813 Nov 2001Shell Oil CompanyExpandable well screen
US632150316 Nov 199927 Nov 2001Foster Miller, Inc.Foldable member
US632210912 Mar 200127 Nov 2001Weatherford/Lamb, Inc.Expandable tubing connector for expandable tubing
US632514822 Dec 19994 Dec 2001Weatherford/Lamb, Inc.Tools and methods for use with expandable tubulars
US632793815 Jan 199811 Dec 2001Weatherford/Lamb, Inc.Jaw unit for use in a power tong
US632811315 Nov 199911 Dec 2001Shell Oil CompanyIsolation of subterranean zones
US633091112 Mar 199918 Dec 2001Weatherford/Lamb, Inc.Tong
US633091828 Feb 200018 Dec 2001Abb Vetco Gray, Inc.Automated dog-type riser make-up device and method of use
US634365118 Oct 19995 Feb 2002Schlumberger Technology CorporationApparatus and method for controlling fluid flow with sand control
US636063329 Jan 200126 Mar 2002Weatherford/Lamb, Inc.Apparatus and method for aligning tubulars
US636835528 Apr 20009 Apr 2002Renan UflackerStent or graft support structure for treating bifurcated vessels having different diameter portions and methods of use and implantation
US637120326 Jan 200116 Apr 2002Shell Oil CompanyMethod of creating a wellbore in an underground formation
US63745659 Nov 199923 Apr 2002Foster-Miller, Inc.Foldable member
US63786142 Jun 200030 Apr 2002Oil & Gas Rental Services, Inc.Method of landing items at a well location
US638231824 Sep 19997 May 2002Weatherford/Lamb, Inc.Filter for subterranean use
US641550918 May 20009 Jul 2002Halliburton Energy Services, Inc.Methods of fabricating a thin-wall expandable well screen assembly
US642544422 Dec 199930 Jul 2002Weatherford/Lamb, Inc.Method and apparatus for downhole sealing
US6431271 *20 Sep 200013 Aug 2002Schlumberger Technology CorporationApparatus comprising bistable structures and methods for their use in oil and gas wells
US64467297 Dec 200010 Sep 2002Schlumberger Technology CorporationSand control method and apparatus
US645105214 Oct 199817 Sep 2002Scimed Life Systems, Inc.Tissue supporting devices
US645449328 Jun 200024 Sep 2002Shell Oil CompanyMethod for transporting and installing an expandable steel tubular
US6457518 *5 May 20001 Oct 2002Halliburton Energy Services, Inc.Expandable well screen
US645753222 Dec 19991 Oct 2002Weatherford/Lamb, Inc.Procedures and equipment for profiling and jointing of pipes
US646472030 Mar 200115 Oct 2002Cook IncorporatedRadially expandable stent
US6478091 *4 May 200012 Nov 2002Halliburton Energy Services, Inc.Expandable liner and associated methods of regulating fluid flow in a well
US6478092 *5 Dec 200012 Nov 2002Baker Hughes IncorporatedWell completion method and apparatus
US648552416 Feb 199926 Nov 2002Ernst-Peter StreckerStent for treating pathological body vessels
US6488702 *23 Jan 19983 Dec 2002Jomed GmbhBistable spring construction for a stent and other medical apparatus
US65108964 May 200128 Jan 2003Weatherford/Lamb, Inc.Apparatus and methods for utilizing expandable sand screen in wellbores
US651259919 Jan 199928 Jan 2003Brother Kogyo Kabushiki KaishaFacsimile transmission system
US65135993 Aug 20004 Feb 2003Schlumberger Technology CorporationThru-tubing sand control method and apparatus
US652025422 Dec 200018 Feb 2003Schlumberger Technology CorporationApparatus and method providing alternate fluid flowpath for gravel pack completion
US652704716 Aug 19994 Mar 2003Weatherford/Lamb, Inc.Method and apparatus for connecting tubulars using a top drive
US65362912 Jul 199925 Mar 2003Weatherford/Lamb, Inc.Optical flow rate measurement using unsteady pressures
US654077715 Feb 20011 Apr 2003Scimed Life Systems, Inc.Locking stent
US655406413 Jul 200029 Apr 2003Halliburton Energy Services, Inc.Method and apparatus for a sand screen with integrated sensors
US657187120 Jun 20013 Jun 2003Weatherford/Lamb, Inc.Expandable sand screen and method for installing same in a wellbore
US65752458 Feb 200110 Jun 2003Schlumberger Technology CorporationApparatus and methods for gravel pack completions
US65786306 Apr 200117 Jun 2003Weatherford/Lamb, Inc.Apparatus and methods for expanding tubulars in a wellbore
US658246118 May 199524 Jun 2003Scimed Life Systems, Inc.Tissue supporting devices
US659867813 Nov 200029 Jul 2003Weatherford/Lamb, Inc.Apparatus and methods for separating and joining tubulars in a wellbore
US662279724 Oct 200123 Sep 2003Hydril CompanyApparatus and method to expand casing
US66344313 Oct 200121 Oct 2003Robert Lance CookIsolation of subterranean zones
US664807126 Dec 200118 Nov 2003Schlumberger Technology CorporationApparatus comprising expandable bistable tubulars and methods for their use in wellbores
US666971818 Jul 200130 Dec 2003Petrus BesselinkApparatus and method for placing bifurcated stents
US667589119 Dec 200113 Jan 2004Halliburton Energy Services, Inc.Apparatus and method for gravel packing a horizontal open hole production interval
US668185416 Oct 200127 Jan 2004Schlumberger Technology Corp.Sand screen with communication line conduit
US668495118 Dec 20023 Feb 2004Halliburton Energy Services, Inc.Sand screen with integrated sensors
US66883952 Nov 200110 Feb 2004Weatherford/Lamb, Inc.Expandable tubular having improved polished bore receptacle protection
US668839717 Dec 200110 Feb 2004Schlumberger Technology CorporationTechnique for expanding tubular structures
US669505412 Dec 200124 Feb 2004Schlumberger Technology CorporationExpandable sand screen and methods for use
US669506712 Dec 200124 Feb 2004Schlumberger Technology CorporationWellbore isolation technique
US671906419 Feb 200213 Apr 2004Schlumberger Technology CorporationExpandable completion system and method
US672242723 Oct 200120 Apr 2004Halliburton Energy Services, Inc.Wear-resistant, variable diameter expansion tool and expansion methods
US672244128 Dec 200120 Apr 2004Weatherford/Lamb, Inc.Threaded apparatus for selectively translating rotary expander tool downhole
US672591811 Oct 200127 Apr 2004Halliburton Energy Services, Inc.Expandable liner and associated methods of regulating fluid flow in a well
US672593419 Dec 200127 Apr 2004Baker Hughes IncorporatedExpandable packer isolation system
US674584510 Dec 20018 Jun 2004Shell Oil CompanyIsolation of subterranean zones
US675585628 Sep 200129 Jun 2004Abbott Laboratories Vascular Enterprises LimitedMethods and apparatus for stenting comprising enhanced embolic protection, coupled with improved protection against restenosis and thrombus formation
US677283610 Dec 200210 Aug 2004Schlumberger Technology CorporationExpandable tubing and method
US678962118 Apr 200214 Sep 2004Schlumberger Technology CorporationIntelligent well system and method
US6799637 *9 Oct 20015 Oct 2004Schlumberger Technology CorporationExpandable tubing and method
US680519616 Nov 200119 Oct 2004Weatherford/Lamb, Inc.Expander
US681741029 Apr 200216 Nov 2004Schlumberger Technology CorporationIntelligent well system and method
US682394315 Apr 200330 Nov 2004Bemton F. BaughStrippable collapsed well liner
US684851020 Feb 20021 Feb 2005Schlumberger Technology CorporationScreen and method having a partial screen wrap
US687755326 Sep 200112 Apr 2005Weatherford/Lamb, Inc.Profiled recess for instrumented expandable components
US689605215 May 200224 May 2005Weatherford/Lamb, Inc.Expanding tubing
US690497427 Sep 200214 Jun 2005Noetic Engineering Inc.Slotting geometry for metal pipe and method of use of the same
US690793031 Jan 200321 Jun 2005Halliburton Energy Services, Inc.Multilateral well construction and sand control completion
US692464027 Nov 20022 Aug 2005Precision Drilling Technology Services Group Inc.Oil and gas well tubular inspection system using hall effect sensors
US693216126 Sep 200123 Aug 2005Weatherford/Lams, Inc.Profiled encapsulation for use with instrumented expandable tubular completions
US696220324 Mar 20038 Nov 2005Owen Oil Tools LpOne trip completion process
US69837965 Jan 200110 Jan 2006Baker Hughes IncorporatedMethod of providing hydraulic/fiber conduits adjacent bottom hole assemblies for multi-step completions
US69941678 Sep 20017 Feb 2006Schlumberger Technology CorporationMethod and system for cement lining a wellbore
US703660023 Jul 20032 May 2006Schlumberger Technology CorporationTechnique for deploying expandables
US704805230 Oct 200323 May 2006Schlumberger Technology CorporationApparatus comprising expandable bistable tubulars and methods for their use in wellbores
US70556092 Jun 20036 Jun 2006Schlumberger Technology CorporationHandling and assembly equipment and method
US70864762 Jun 20038 Aug 2006Schlumberger Technology CorporationExpandable devices and method
US710069022 Jan 20045 Sep 2006Halliburton Energy Services, Inc.Gravel packing apparatus having an integrated sensor and method for use of same
US710432416 Sep 200412 Sep 2006Schlumberger Technology CorporationIntelligent well system and method
US710806217 May 200219 Sep 2006Halliburton Energy Services, Inc.Expandable well screen
US713149422 Dec 20047 Nov 2006Schlumberger Technology CorporationScreen and method having a partial screen wrap
US713450111 Feb 200414 Nov 2006Schlumberger Technology CorporationExpandable sand screen and methods for use
US714044610 May 200528 Nov 2006Weatherford/ Lamb, Inc.Connector for expandable well screen
US71561807 Oct 20052 Jan 2007Schlumberger Technology CorporationExpandable tubing and method
US716848531 Jul 200330 Jan 2007Schlumberger Technology CorporationExpandable systems that facilitate desired fluid flow
US716848630 Oct 200330 Jan 2007Schlumberger Technology CorporationApparatus comprising expandable bistable tubulars and methods for their use in wellbores
US718213410 Mar 200427 Feb 2007Schlumberger Technology CorporationIntelligent well system and method
US718570923 Mar 20046 Mar 2007Schlumberger Technology CorporationExpandable tubing and method
US719184212 Mar 200320 Mar 2007Schlumberger Technology CorporationCollapse resistant expandables for use in wellbore environments
US72226767 May 200329 May 2007Schlumberger Technology CorporationWell communication system
US723509729 Jul 200326 Jun 2007Paragon Intellectual Properties, LlcApparatus for a stent or other medical device having a bistable spring construction
US729116618 May 20056 Nov 2007Advanced Cardiovascular Systems, Inc.Polymeric stent patterns
US730045819 Jan 200527 Nov 2007Micro Therapeutics, Inc.Medical implant having a curlable matrix structure
US739883110 Dec 200215 Jul 2008Schlumberger Technology CorporationExpandable tubing and method
US747624516 Aug 200513 Jan 2009Advanced Cardiovascular Systems, Inc.Polymeric stent patterns
US76816406 Oct 200623 Mar 2010Schlumberger Technology CorporationScreen and method having a partial screen wrap
US775862818 Feb 200420 Jul 2010Nexeon Medsystems, Inc.Expandable device having bistable spring construction
US2001002733930 Mar 20014 Oct 2001Boatman Scott E.Radially expandable stent
US2001004465214 Jun 200122 Nov 2001Moore Brian EdwardStents with multi-layered struts
US20020035394 *28 Sep 200121 Mar 2002Jomed GmbhMethods and apparatus for stenting comprising enhanced embolic protection, coupled with improved protection against restenosis and thrombus formation
US20020092649 *20 Feb 200218 Jul 2002Bixenman Patrick W.Screen and method having a partial screen wrap
US2002010756216 Jan 20028 Aug 2002Barrie HartTechnique of forming expandable devices from cells that may be transitioned between a contracted state and an expanded state
US2002012500929 Apr 200212 Sep 2002Wetzel Rodney J.Intelligent well system and method
US20030074052 *11 Oct 200217 Apr 2003Jomed GmbhBistable spring construction for a stent and other medical apparatus
US2003007988510 Dec 20021 May 2003Schetky L. Mcd.Expandable tubing and method
US2003007988610 Dec 20021 May 2003Schetky L. Mcd.Expandable tubing and method
US200301999693 Jun 200323 Oct 2003Steinke Thomas A.Expandable stent with sliding and locking radial elements
US2004003440226 Jul 200219 Feb 2004Syntheon, LlcHelical stent having flexible transition zone
US2004006544510 Jun 20038 Apr 2004Abercrombie Simpson Neil AndrewExpanding tubing
US2004008804327 Oct 20036 May 2004Avantec Vascular CorporationRadially expansible vessel scaffold having modified radiopacity
US2004008945430 Oct 200313 May 2004Hackworth Matthew R.Apparatus comprising expandable bistable tubulars and methods for their use i wellbores
US200401332708 Jul 20038 Jul 2004Axel GrandtDrug eluting stent and methods of manufacture
US20040182581 *12 Mar 200423 Sep 2004Schetky L. Mcd.Expandable tubing and method
US2004019324718 Feb 200430 Sep 2004Besselink Petrus A.Expandable device having bistable spring construction
US2005003992716 Sep 200424 Feb 2005Wetzel Rodney J.Intelligent well system and method
US200500550805 Sep 200310 Mar 2005Naim IstephanousModulated stents and methods of making the stents
US2005016382110 Feb 200528 Jul 2005Hsing-Wen SungDrug-eluting Biodegradable Stent and Delivery Means
US2005018247913 Feb 200418 Aug 2005Craig BonsignoreConnector members for stents
US2006003774510 Jun 200523 Feb 2006Schlumberger Technology CorporationExpandable device for use in a well bore
US2006021779529 Mar 200628 Sep 2006Paragon Intellectual Properties, LlcFracture-resistant helical stent incorporating bistable cells and methods of use
US2006024173922 Dec 200526 Oct 2006Paragon Intellectual Properties, LlcDevice comprising biodegradable bistable or multistable cells and methods of use
US200700846086 Oct 200619 Apr 2007Schlumberger Technology CorporationScreen and Method Having a Partial Screen Wrap
US200701021536 Oct 200610 May 2007Schlumberger Technology CorporationScreen and Method Having a Partial Screen Wrap
US2008009757119 Oct 200724 Apr 2008Paragon Intellectual Properties, LlcDeformable lumen support devices and methods of use
US200901872431 Dec 200823 Jul 2009Alfred David JohnsonBiocompatible copper-based single-crystal shape memory alloys
AU784777B2 Title not available
AU2006202182A1 Title not available
AU2006202182B2 Title not available
CA2359450A117 Oct 200120 Apr 2002Schlumberger Canada LimitedExpandable tubing and method
CA2359450C17 Oct 200113 Dec 2005Schlumberger Canada LimitedExpandable tubing and method
CA2367810A115 Jan 200216 Jul 2002Schlumberger Canada LimitedTechnique of forming expandable devices from cells that may be transitioned between a contracted state and an expanded state
CA2367810C15 Jan 200211 Oct 2011Schlumberger Canada LimitedTechnique of forming expandable devices from cells that may be transitioned between a contracted state and an expanded state
CA2513263A117 Oct 200120 Apr 2002Schlumberger Canada LimitedExpandable tubing and method
CA2513263C17 Oct 200115 Sep 2009Schlumberger Canada LimitedExpandable tubing and method
CA2544701A114 Jan 200216 Jul 2002Schlumberger Canada LimitedExpandable sand screen and methods for use
CA2602435C23 Jan 199813 Mar 2012Paragon Intellectual Properties, LlcBistable spring construction for a stent and other medical apparatus
DE8812719U111 Oct 19889 Nov 1989Schnepp-Pesch, Wolfram, 7505 Ettlingen, DeTitle not available
DE10201631A116 Jan 200228 Nov 2002Schlumberger Technology CorpTechnik zum Ausbilden expandierbarer Vorrichtungen aus Zellen, die zwischen einem kontrahierten Zustand und einem expandierten Zustand wechseln können
DE19728337A13 Jul 19977 Jan 1999Inst Mikrotechnik Mainz GmbhImplantierbare Gefäßstütze
EP0274846A11 Dec 198720 Jul 1988Boston Scientific CorporationApparatus for treating hypertrophy of the prostate gland
EP0326426B127 Jan 198921 Dec 1994JMS Co., Ltd.Plastic molded articles with shape memory property
EP0326462B118 Jan 198915 Apr 1992Labavia S.G.E.Brake installation for vehicles with wheel-antiblocking device and retarder with monitored control
EP0335341A128 Mar 19894 Oct 1989EXPANDABLE GRAFTS PARTNERSHIP a Texas General PartnershipExpandable intraluminal graft and apparatus for implanting an expandable intraluminal graft
EP0364787B129 Sep 19894 Mar 1992EXPANDABLE GRAFTS PARTNERSHIP a Texas General PartnershipExpandable intraluminal graft
EP0421729B12 Oct 199017 Jan 1996Medtronic, Inc.Articulated stent
EP0540290A227 Oct 19925 May 1993Advanced Cardiovascular Systems, Inc.Expandable stents and method for making same
EP0587197A111 Oct 199116 Mar 1994Angiomed AgArranging device in a body duct
EP0636345B118 Jul 19942 Dec 1998SurgiJet, Inc.Fluid jet surgical cutting tool
EP0664107B116 Jan 19952 Dec 1998NAZARI, StefanoVascular prosthesis and device for its application
EP0674095B110 Mar 19953 Sep 2003Nagaoka International CorporationWell screen with coiled element
EP0679372B124 Apr 199528 Jul 1999Advanced Cardiovascular Systems, Inc.Radiopaque stent markers
EP0688545B116 Jun 199518 Sep 2002Terumo Kabushiki KaishaMethod for manufacturing an indwelling stent
EP0734698B928 Mar 19965 Jul 2006Variomed AGStent for transluminal implantation into hollow organs
EP0744164B121 May 199610 Sep 2003Cook IncorporatedAn implantable prosthetic device
EP0779409A113 Dec 199618 Jun 1997Halliburton CompanyTraceable well cement composition and its use
EP0897698B110 Jun 19989 Jun 2004Nozomu KanesakaStent with different mesh patterns
EP1031329A223 Feb 200030 Aug 2000Cordis CorporationBifurcated axially flexible stent
EP1042997B17 Apr 20002 Mar 2005Cordis CorporationStent with variable wall thickness
EP1152120A23 May 20017 Nov 2001Halliburton Energy Services, Inc.Expandable well screen
EP1223305A315 Jan 200213 Nov 2002Schlumberger Holdings LimitedBi-stable expandable device and method for expanding such a device
EP1223305B115 Jan 200223 Apr 2008Services Petroliers SchlumbergerBi-stable expandable device and method for expanding such a device
EP1255022A116 Aug 20016 Nov 2002Sensor Highway Ltd.Apparatus and method for installing a monitoring line in a well
FR2617721A1 Title not available
FR2642812B1 Title not available
GB2081173A Title not available
GB2169515A Title not available
GB2175824A Title not available
GB2287093A Title not available
GB2317630A Title not available
GB2347448B Title not available
GB2355740B Title not available
GB2362462A Title not available
GB2366817B Title not available
GB2368082A * Title not available
GB2369382A Title not available
GB2369382B Title not available
GB2370301B Title not available
GB2370574A Title not available
GB2371063A Title not available
GB2371064B Title not available
GB2371066B Title not available
GB2371574B Title not available
GB2379690B8 Title not available
GB2379691B8 Title not available
GB2379692B8 Title not available
GB2379693B Title not available
GB2379694A Title not available
GB2379694B Title not available
GB2382831A Title not available
GB2382831B Title not available
GB2386625A Title not available
GB2386625B Title not available
GB2392461A Title not available
GB2392461B Title not available
GB2395214A Title not available
GB2395214B Title not available
GB2403491B Title not available
GB2404683A Title not available
GB2404683B Title not available
GB2408531A Title not available
GB2408531B Title not available
GB2409694A Title not available
GB2409694B Title not available
GB2410273A Title not available
GB2410273B Title not available
JP3958602B2 Title not available
JP2002121654A Title not available
JP2002332791A Title not available
NL1019192C2 Title not available
NL1019753C2 Title not available
NL1021076C2 Title not available
NL1022037C2 Title not available
NO20020223A Title not available
NO20034598A Title not available
RU2225497C2 Title not available
RU2263198C2 Title not available
SG104956A1 Title not available
SU1105620A1 Title not available
WO1992006734A117 Oct 199130 Apr 1992Ho Young SongSelf-expanding endovascular stent
WO1992019310A124 Apr 199212 Nov 1992Advanced Coronary Technology, Inc.Removable heat-recoverable tissue supporting device
WO1994003127A16 Aug 199317 Feb 1994William Cook Europe A/SA prosthetic device for sustaining a blood-vessel or hollow organ lumen
WO1998020810A128 Oct 199722 May 1998Medtronic, Inc.Flexible, radially expansible luminal prostheses
WO1998049423A Title not available
WO1999015108A224 Sep 19981 Apr 1999Med Institute, Inc.Radially expandable stent
WO2000036386A117 Dec 199922 Jun 2000Chevron U.S.A. Inc.Apparatus and method for protecting devices, especially fibre optic devices, in hostile environments
WO2001029368A117 Oct 200026 Apr 2001Schlumberger Technology CorporationApparatus and method for controlling fluid flow with sand control
WO2001088332A110 May 200122 Nov 2001Halliburton Energy Services, Inc.Thin-wall expandable well screen assembly and associated fabrication methods
WO2004014255A129 Jul 200319 Feb 2004Abbott Laboratories Vascular Enterprises, LimitedApparatus for a stent or other medical device having a bistable spring construction
WO2007076051A321 Dec 200629 Nov 2007Paragon Intellectual PropertieDevice comprising biodegradable bistable or multistable cells and methods of use
WO2007126729A223 Mar 20078 Nov 2007Paragon Intellectual Properties, LlcFracture-resistant helical stent incorporating bistable cells and methods of use
WO2007126729A323 Mar 200720 Nov 2008Paragon Intellectual PropertieFracture-resistant helical stent incorporating bistable cells and methods of use
Non-Patent Citations
Reference
1[Proposed] Order Granting Kentucky Oil's Motion to Strike Declaration of Bejamin Holl and Portions of Counterdefendants' Reply Briefs, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), entered Mar. 25, 2005 (2 pages).
2[Proposed] Order Granting Memry Corporation's Motion to Dismiss Kentucky Oil Technology's Third Fourth, Fifth, and Sixth Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Feb. 25, 2005 (3 pages).
3[Proposed] Order Granting Schlumberger Technology Corporation's Motion to Dismiss Kentucky Oil Technology's First Amended Third, Fourth, Fifth, and Sixth Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Feb. 24, 2005 (3 pages).
4[Proposed] Order Granting Schlumberger Technology Corporation's Motion to Dismiss Kentucky Oil Technology's Third, Fourth, Fifth, and Sixth Counterclaims. Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Jan. 24, 2005 (3 pages).
5Answer of Defendants and Counterclaims of Kentucky Oil Technology N.V. Against Memry Corporation and Schlumberger Technology Corporation, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.) filed Nov. 2, 2004 (20 pages).
6Besselink, Peter, Biflex Stents; SMST-99; Proceedings of the First European Conference on Shape Memory and Superelastic Technologies, Antwerp Zoo, Belgium, 1999; pp. 142-150.
7Communication from United States District Court Transferring Case, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. H-04-1959 (S.D. Tex.), dated Sep. 7, 2004 (1 pages).
8Declaration of David B. Moyer in Support of Schlumberger Technology Corporation's Opposition to Kentucky Oil Technology's Motion to Compel, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Aug. 4, 2005 (52 pages).
9Declaration of Nicola A. Pisano in Support of Kentucky Oil's Motion to Compel, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Aug. 10, 2005 (69 pages).
10Defendants' Motions (1) to Dismiss the Complaint for Insufficiency of Process and Lack of Personal Jurisdiction, (2) to Dismiss Counts I-III of the Complaint for Failure to State a Claim and (3) in the Alternative, to Transfer This Action to the Federal District Court for the Northern District of California, Memry Corporation v. Kentucy Oil Technology, N.V., Case No. H-04-1959, (S.D. Tex.), filed Jul. 7, 2004 (49 pages).
11Docket Sheet for Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.) (PACER Aug. 11, 2005) (13 pages).
12Docket Sheet for Memry Corporation v. Kentucky Oil Technology, N.V., Case No. H-04-1959 (S.D. Tex.) (PACER Jun. 2, 2005) (5 pages).
13European Search Report dated Jul. 21, 2008 re EP 05 02 2622 (PARGN.002VR1EP) in 4 pages.
14European Search Report dated Mar. 15, 2006 re EP 05 02 2622 (PARGN.002VR1 EP) in 4 pages.
15First Amended Counterclaims of Kentucky Oil Technology N.V. Against Memry Corporation and Schlumberger Technology Corporation, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Feb. 9, 2005 (16 pages).
16Gravel Pack Systems: Mini-Beta Gravel Pack System, Baker Oil Tools, pp. 12-13, (Undated).
17Hackworth et al., Development and First Application of Bistable Expandable Sand Screen, Oct. 5-8, 2003, SPE 84265, whole document.
18Hamid, Syed, Lester, G. Scott and Adkins, Darrel W.; A Fiber-Optic Inspection System for Prepacked Screens: Society of Petroleum Engineers Inc.: pp. 1-12. Apr. 1999.
19Kentucky Oil's Notice of Motion and Motion to Strike Declaration of Benjamin Holl and Portions of Counterdefendants' Reply Briefs, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 25, 2005 (4 pages).
20Kentucky Oil's Opposition to Counterdefendants' Requests for Judicial Notice in Support of Their Motions to Dismiss Kentucky Oil Technology's First Amended Third, Fourth, Fifth, and Sixth Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 11, 2005 (3 pages).
21Kentucky Oil's Opposition to STC's Motion to Strike Exhibits 1, 3 and 4 to the Declaration of Nicola A. Pisano, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 25, 2005 (3 pages).
22Kentucky Oil's Reply in Support of Motion to Compel, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Aug. 10, 2005 (18 pages).
23Notice o Motion and Motion by Kentucky Oil To Compel Production of Documents by Schlumberger Technology Corporation Pursuant to Fed. R. Civ. Rule 37; Memorandum of Points and Authorities in Support Thereof; Declaration of Michael Bierman, Memry Corporation v. Kentucky Oil Technology, N.V. Case No. C-04-03843, (N.D. Cal.), filed Jul 28, 1005 (32 pages).
24Office Action for U.S. Appl. No. 12/872,154 dated Feb. 25, 2011.
25Office Action for U.S. Appl. No. 12/872,154 dated Jul. 20, 2011.
26Office Action for U.S. Appl. No. 12/872,178 dated Jul. 28, 2011.
27Office Action for U.S. Appl. No. 12/872,178 dated Mar. 1, 2011.
28Office Action for U.S. Appl. No. 12/872,203 dated Jul. 20, 2011.
29Office Action for U.S. Appl. No. 12/872,203 dated Mar. 3, 2011.
30Opposition of Kentucky Oil Technology to Schlumberger Technology Corporation's Motion to Dismiss Kentucky Oil's Second Amended Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Jun. 17, 2005 (16 pages).
31Opposition of Kentucky Oil to Motions of Memry Corporation and Schlumberger Technology Corporation to Dismiss First Amended Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V. Case No. C-04-03843, (N.D. Cal.), filed Mar. 11, 2005 (29 pages).
32Order Granting in Part and and Denying in Part Counterdefendants' Motion to Dismiss, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), entered Apr. 8, 2005 (26 pages).
33Order Granting in Part and Denying in Part STC's Motion to Dismiss, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), entered Jul. 14, 2005 (8 pages).
34Order Granting Kentucky Oil's Motion to Compel Production of Documents, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), entered Aug. 17, 2005 (8 pages).
35Plaintiff and Counterdefendant Memry Corporation's Answer to Kentucky Oil Technology N.V.'s Counterclaims and Demand for Jury Trial, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843 (N.D. Cal.), filed Dec. 3, 2004 (10 pages).
36Plaintiff and Counterdefendant Memry Corporation's Notice of Motion and Motion to Dismiss Kentucky Oil Technology's Third, Fourth, Fifth, and Sixth Counterclaims; and Memorandum of Points and Authorities, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Feb. 25, 2005 (29 pages).
37Plaintiff and Counterdefendant Memry Corporation's Reply in Support of Motion to Dismiss Kentucky Oil Technology's Third, Fourth, Fifth, and Sixth Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 18, 2005 (9 pages).
38Plaintiff and Counterdefendant Memry Corporation's Reply in Support of Request for Judicial Notice, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 18, 2005 (4 pages).
39Plaintiff and Counterdefendant Memry Corporation's Reply to Kentucky Oil Technology N.V.'s Counterclaims and Demand for Jury Trial, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Apr. 18, 2005 (8 pages).
40Plaintiff Memry Corporation's Reply to Kentucky Oil Technology N.V.'s Second Amended Counterclaims and Demand for Jury Trial, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Jun. 3, 2005 (9 pages).
41Plaintiffs' First Amended Complaint, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843. (N.D. Cal.), filed Aug. 19, 2004 (20 pages).
42Plaintiffs' Original Complaint, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. H-04-1959, (S.D. Tex.), filed May 14, 2004 (20 pages).
43Reply of Schlumberger Technology Corporation to Kentucky Oil Technology's Opposition to First Amended, Third, Fourth, Fifth, and Sixth Counterclaims. Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 18, 2005 (17 pages).
44Request for Judicial Notice in Support of Memry Corporation's Motion to Dismiss Kentucky Oil Technology's Third, Fourth, Fifth, and Sixth Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Feb. 25, 2005 (3 pages).
45Request for Judicial Notice in Support of Schlumberger Technology Corporation's Motion to Dismiss Kentucky Oil Technology's First Amended Third, Fourth, Fifth, and Sixth Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Feb. 24, 2005 (3 pages).
46Schlumberger Technology Corporation's Answer to Kentucky Oil Technology's Second Amended Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Jul. 28, 2005 (8 pages).
47Schlumberger Technology Corporation's Notice of Motion and Motion to Dismiss Kentucky Oil Technology's First Amended Third, Fourth, Fifth, and Sixth Counterclaims; and Memorandum of Points and Authorities, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Feb. 24, 2005 (32 pages).
48Schlumberger Technology Corporation's Notice of Motion and Motion to Dismiss Kentucky Oil Technology's Third, Fourth, Fifth, and Sixth Counterclaims; and Memorandum of Points and Authorities, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Jan. 24, 2005 (32 pages).
49Schlumberger Technology Corporation's Notice of Motion and Motion to Dismiss the Fourth, Fifth, Sixth, Seventh, and Eighth Counterclaims in Kentucky Oil Technology's Second Amended Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Jun. 3, 2005 (18 pages).
50Schlumberger Technology Corporation's Opposition to Kentucky Oil Technology's Motion to Compel, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Aug. 4, 2005 (21 pages).
51Schlumberger Technology Corporation's Reply Brief in Support of its Motion to Dismiss the Fourth, Fifth, Sixth, Seventh, and Eighth Counterclaims in Kentucky Oil Technology's Second Amended Counterclaims, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Jun. 24, 2005 (11 pages).
52Schlumberger's Notice of Motion and Motion to Strike Exhibits 1, 2, and 4 to the Declaration of Nicola A. Pisano, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 18, 2005 (3 pages).
53Schlumberger's Reponse to Kentucky Oil's Opposition to Counterdefendants' Requests for Judicial Notice, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed Mar. 18, 2005 (3 pages).
54Second Amended Counterclaims of Kentucky Oil Technology N.V. Against Memry Corporation and Schlumberger Technology Corporation, Memry Corporation v. Kentucky Oil Technology, N.V., Case No. C-04-03843, (N.D. Cal.), filed May 6, 2005 (20 pages).
55Sides, Win, Hydraulic Intelligent Completions, Baker Hughes, Advanced Technology Conference, Sep. 30-Oct. 1, 1999, slides 1-28 (6446729).
56STDZ and Multizone Completion Systems, Halliburton Company, 1995.
57U.S. Pre-Grant Pub 2003/0056947, Cameron, Mar. 2003. Hamid, Syed, Lester, G. Scott and Adkins, Darrell W.; A Fiber-Optic Inspection System for Prepacked Screens; Society of Petroleum Engineers Inc.; pp. 1-9, 1999.
58US 6,706,063, 03/2004, Besselink (withdrawn)
Classifications
U.S. Classification166/380, 166/207
International ClassificationE21B29/10, E21B43/08, E21B43/10, A45C3/00, E21B23/00
Cooperative ClassificationE21B43/103, E21B23/00, E21B43/086, E21B43/105, E21B43/084, E21B43/108, A45C3/00