CA2461278C - Corrugated downhole tubulars - Google Patents

Corrugated downhole tubulars Download PDF

Info

Publication number
CA2461278C
CA2461278C CA002461278A CA2461278A CA2461278C CA 2461278 C CA2461278 C CA 2461278C CA 002461278 A CA002461278 A CA 002461278A CA 2461278 A CA2461278 A CA 2461278A CA 2461278 C CA2461278 C CA 2461278C
Authority
CA
Canada
Prior art keywords
tubular
bore
corrugations
corrugated
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002461278A
Other languages
French (fr)
Other versions
CA2461278A1 (en
Inventor
Neil Andrew Abercrombie Simpson
Simon John Harral
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford Lamb Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of CA2461278A1 publication Critical patent/CA2461278A1/en
Application granted granted Critical
Publication of CA2461278C publication Critical patent/CA2461278C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02Subsoil filtering
    • E21B43/10Setting of casings, screens, liners or the like in wells
    • E21B43/103Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22Rods or pipes with helical structure
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • E21B31/035Fishing for or freeing objects in boreholes or wells controlling differential pipe sticking
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0035Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches
    • E21B41/0042Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches characterised by sealing the junction between a lateral and a main bore
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02Subsoil filtering
    • E21B43/10Setting of casings, screens, liners or the like in wells
    • E21B43/103Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E21B43/105Expanding tools specially adapted therefor

Abstract

A method of lining a drilled bore comprises running a tubular (40) into a drilled bore (42) and then corrugating the tubular in the bore. The tubular may also be expanded in the bore. In other aspects of the invention the tubular is corrugated prior to running into the bore and may be rotated as it is run into the bore.

Description

CORRUGATED DOWNHOLE TUBULARS

FIELD OF THE INVENTION

This invention relates to tubulars, and in particular to downhole tubulars, which may take the form of bore-lining casing or liner, production.tubing, work strings or the like. In particular, the present invention relates to formed tubulars which have a corrugated wall over at least a portion of their length, and also to methods of forming corrugations in tubulars, methods of utilising such tubulars, and tools and devices adapted for use in conjunction with such tubulars.

BACKGROUND OF THE INVENTION

Where deep bores are drilled to gain access to subsurface formations, for example as in the oil and gas exploration and production industry, it is conventional to line the drilled bores with meta.llic tubulars. Typically, the tubulars take the form of thick-walled cylindrical tubulars sections which are coupled together and run into the drilled holes as strings. Methods of producing, handling and running in of such tubulars are well established, however problems remain, particularly in running tubular strings into bores; and these problems
2 become more acute as attempts are made to access hydrocarbon deposits in more challenging locations, and the drilled bores become longer and more highly deviated.

It is among the objectives of at least one embodiment of an aspect of the present invention to provide downhole tubulars which obviate or mitigate some of the problems associated with existing tubular forms.

SUMMARY OF THE INVENTION

According to the present invention there is provided a method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, to increase the collapse resistance of the tubular.

Testing has shown that corrugating a conventional cylindrical-walled tubular tends 'to increase the collapse resistance of the tubular, typically by a factor of two.
Thus, the present invention allows an operator to line a bore with tubulars which, before corrugation, have perhaps only half of the collapse resistance of conventional tubulars which would otherwise be utilised. This allows use of lighter tubulars, with corresponding savings in material and transport costs, and facilitates handling of the tubulars. In addition, or alternatively, the operator may choose to use lighter tubulars of higher quality material, for example with a higher chromium content.
3 The invention may also be usefully employed when, for example, a drilling operation encounters a formation or section such as clay, shale or salt,which has a tendency to swell or flow causing the bore to close in prematurely, or even to crush casing which may already have been set across the section. Where surveys have identified that such formations are likely to be encountered, heavy wall casing capable of withstanding the collapse pressures will be on hand and available to run across the problem area.

However, in many cases these problem formations are not anticipated beforehand and when encountered an intermediate casing has to be run into the bore and which casing must then be subsequently reinforced by a further casing, substantially reducing the available bore diameter of the well. However, by virtue of the present invention, if a problem formation is encountered, a standard casing may be run across the problem area and then corrugated, the corrugated casing possessing the collapse resistance necessary to prevent the bore from closing. The entire length of the casing may be corrugated, or only the portion that intersects the problem formation. Furthermore, as will be described below, the casing may also be diametrically expanded, such that the intermediate casing will not restrict the bore diameter.

Preferably, the tubular is a thin-walled tubular. In the context of bore-lining tubulars, conventional tubulars
4 typically have a wall thickness in excess of 6 mm, however, as noted above, the present invention facilitates use of thinner walled tubulars, without loss of collapse resistance. Most preferably, the tubular has a wall thickness of less than 6 mm, and typically around 3 to 4 mm. Alternatively, the tubular may be a conventional tubular, having a wall thickness in excess of 6 mm.

Preferably, the corrugation of the tubular also diametrically expands the tubular. Depending on the degree of expansion, this may permit the tubular to be run in through existing bore-lining tubing having an internal first diameter and the tubular then expanded to an internal diameter at least as large as the first diameter.
Alternatively, the tubular may be diametrically expanded in a separate step from the corrugation step, either before or after corrugation. The diametric expansion following corrugation may create a cylindrical wall form. In one embodiment of the invention, a thin wall tubular having an external diameter of 7 5/8" (19.4 cm)is run in through existing 9 5/81' (24.4 cm) casing (having an internal diameter of 8W" (21.6 cm)). The tubular is then corrugated and expanded, such that the minimum internal diameter, at the peaks of the corrugations, is 8%" (21.6 cm). The corrugated tubular may thus serve to support the bore wall, but allows the subsequent 7 5/811 (19.4 cm) casing to be run in and cemented below the 9 5/8" (24.4 cm) casing.

The tubular may be corrugated from the top down, or from the bottom up. The tubular may be expanded f rom the top down, or from the bottom up.
5 The method may comprise the further step of cementing the tubular in the bore, to seal and secure the tubular relative to the bore wall. In other embodiments, the tubular may carry a deformable or swelling material on an external surface of the tubular, or may be provided in combination with a sleeve of deformable material.

Some or all of the tubular may be corrugated; it may be desired to retain a section of cylindrical-walled tubular, for coupling to or for receiving conventional connectors, seals, tools or devices.

The corrugations may extend solely circumferentially, but are preferably helical.

At least one further tubular may be located internally of the corrugated tubular, which further tubular may have a cylindrical wall, and which tubular may subsequently be diametrically expanded.

Tools or devices may be located within the corrugated tubular, and other aspects of the invention relate to tools and devices adapted to engage the corrugated tubular. For example, rather than providing conventional slips or a portion adapted to engage a particular nipple profile, a device may include radially extendable portions profiled to
6 -correspond to the corrugated wall. Thus, a device may be securely located at any desired location within a tubular.
In a similar fashion, a packer may be provided with packer elements shaped to engage and conform to the corrugated tubular wall form. These packer elements will not form notches in the casing wall, as occurs with slips, and which notches act as a starting point for corrosion. The tool may take the form of a well control dart, which is dropped into the bore and travels down through the bore until flow of fluid up through the bore reaches a level where the dart is moved upwardly. When this occurs, the dart is arranged to engage the surrounding wall of the corrugated tubular, and close the bore. Such tools and devices are of course less likely to be displaced by axial forces, and corrugated or wave-form sealing members are less likely to be extruded out than conventional elastomer sleeves or seals. Other aspects of the invention relate to tractors and the like which are adapted to utilise the corrugations to facilitate travel through the tubular.

Preferably, the corrugations are formed by a rotary expander, that is an expander featuring at least one bearing member which applies a radial force to an inner wall of the tubular and which is rotated within the tubular, typically while being advanced axially through the tubular. The axial advancement may be achieved by any appropriate means, such as application of force achieved
7 by, for example, application of weight from surface, use of a tractor, or application of fluid pressure.
Alternatively, the rotary expander may feature skewed rollers, such that rotation of the expander in the tubular creates an axial force on the expander. Preferably, the expander features a plurality of bearing members, typically three, and most preferably the bearing members include rolling elements, which may be in the form of balls or rollers, to provide a rolling contact with the tubular wall. The rotary expander may describe a single, fixed diameter, but is preferably configurable in a smaller diameter configuration and a larger diameter expansion configuration. The bearing member may be movable between the configurations by any appropriate means, for example by application of mechanical force and co-operation of -cam faces, but is most preferably fluid actuated. The expander may take the form of one of the expanders described in applicant's WO 00/37766. The rotary expander may be configured to create a single circumferential or helical corrugation, or may be configured to create a plurality of corrugations, for example a triple helical corrugation.

Other aspects of the invention relate to corrugated tubulars which are run into a bore in the corrugated form.
The tubulars may be corrugated on surface utilising a
8 rotary expansion tool as described above, which tool may be rotated relative to a cylindrical tubular to achieve the desired degree of corrugation. Alternatively, a tool may be provided for engaging the outer wall of a cylindrical tubular, to achieve the desired degree of corrugation. For heavier tubing, or to obtain tighter corrugations, it may be preferable or necessary to provide a tool which engages both the inner and outer walls of the tubular. In other embodiments of the invention the corrugations may be provided by other methods. As noted above, the presence of corrugations tends to provide a collapse resistance which is high relative to the tubular wall thickness. Thus, the invention has particular application to thin-walled tubulars, which are relatively easily corrugated, and once corrugated provide a level of collapse resistance corresponding to significantly thicker parallel-walled tubulars.

The tubulars may be annealed or otherwise treated following corrugation, to reduce or minimise any work-hardening effects and to reduce internal stresses which might lead to an increased susceptibility to corrosion.
Such tubulars may also be subsequently expanded or otherwise deformed more readily.

Aspects of the invention relate to particular uses and applications of such tubulars, some of which are described below.
9 PCT/GB2003/002880 The presence of a corrugation in the tubular wall provides protective recesses, both internally and externally, in which elongate members or elements such as conduits, signal carriers, power carriers, electrical conductors, heating elements, sensors and the like may be located, and aspects of the invention relate to corrugated tubulars provided in combination with such members and elements. In one embodiment, optical fibres having both sensing and data transmission capabilities are provided.

of course it is not only elongate elements which may be located in the corrugations, and discrete or individual objects may be positioned within the troughs.

Alternatively, or in addition, the presence of corrugations provides protective recesses in which to locate a sealing or filling material, or which may be utilised to carry a material into a bore. For example, external corrugations may be at least partially filled with a flowable, settable or swelling material, the peaks of the corrugations protecting the material as the tubular is run into the bore. Once in the bore, the corrugated tubular may be diametrically expanded, such that at least some of the material is pushed out of the troughs of the corrugations to fill and seal the annulus between the tubular and the bore wall. A degree of corrugation may be retained, or the expansion may be such that the expanded tubing is parallel-walled. This obviates the requirement to cement the tubular in the bore, and it is not necessary to size the bore (or reduce the tubular diameter) to provide an annulus which is sufficiently large to accommodate cement circulation. Where a swelling material 5 is provided, it may not be necessary to expand the tubular to achieve sealing, and the swelling material may be activated by exposure to well fluid or by circulating an appropriate activating material.

The different aspects of the invention also have
10 utility in subsea or surface applications, for example as risers or forming parts of risers, flowlines or pipelines.
The corrugations provide flexibility which is useful when the tubular is likely to experience movement, bending or axial extension or contraction. In such embodiments, a corrugated metallic tubular may be embedded within a flexible polymeric or elastomeric material, or may have an internal or external coating.

Aspects of the invention relate to running corrugated tubulars into a bore, which provides numerous advantages, as described below.

The corrugated tubulars will be less prone to differential sticking than conventional cylindrical-walled tubulars, and accordingly may be selected for bores where it is anticipated that differential sticking may be a problem. Differential sticking may occur where a bore intersects a relatively low pressure formation, such that
11 a tubular in contact with the bore wall may be pushed into contact with the wall by the pressure of the fluid in the bore. With the corrugated tubulars, only the peaks of the corrugations will contact the wall, such that potential for differential sticking is significantly reduced. The presence of the corrugations may also assist when the tubular is cemented in the bore. These advantages may e achieved using helical corrugations having a relatively large pitch, for example 4 to 10 feet (1.2 to 3m).

The applicant-has also recognised that many of the advantages gained by use of corrugated tubulars will be available from running conventional parallel walled tubulars in corrugated bores, and other aspects of the invention relate to the provision of such corrugated bores.

The corrugated tubular has greater flexibility than a conventional cylindrical-walled tubular providing corresponding collapse resistance. Furthermore, the corrugated tubular will be significantly lighter. Thus, handling of the tubular is facilitated, as is the ability of the tubular to accommodate bends, dog legs or steps in the bore, which may occur during drilling of the bore or following drilling of the bore; corrugated tubulars may be selected for use in bores where such conditions are likely to be encountered. Embodiments of the invention therefore include corrugated casing and liner. Helical corrugations may also be used to advantage when running corrugated
12 tubulars: if a difficulty is encountered on running a tubular into a bore, if the tubular is rotated the corrugations in contact with the bore wall will act in a similar manner to a screw-thread, and will tend to create an axial force between the tubular and the bore wall, which may serve to advance or retract the tubular, and may facilitate overcoming a restriction or tight spot in the bore. Furthermore, the corrugations may be employed in a similar fashion to dislodge or disturb drill cuttings and the like which have gathered on the low side of an inclined bore, and which may create difficulties when attempting to run a tubular into a bore. The presence of corrugations in large diameter tubular strings which are rotated on a bore also reduces the likelihood of connector failure as the additional flexibility provided by the corrugations serves to reduce the cyclic bending loads experienced by the relatively stiff connectors between the individual tubulars.

Aspects of the invention also relate to drilling using corrugated tubulars as a drill bit support, and in particular drilling with corrugated casing. As identified above, such casing will be less likely to experience differential sticking and connector failure. The casing may subsequently be diametrically expanded, either retaining a degree of corrugation or being expanded to a parallel-walled form.
13 Rotation of a corrugated tubular is also useful during a cementing or bore-cleaning operation, as the corrugations will tend to disturb any drill cuttings lying in the bore, and will enhance even cement distribution around a tubular.

Some of these effects will of course also be available from solely axial movement of the tubular in the bore.

The enhanced flexibility provided by the corrugated wall may also be utilised to advantage in providing tubulars for passing through lateral junctions into lateral wells. Due to the enhanced flexibility of the corrugated tubing, it is possible to pass relatively large diameter tubulars through the junctions, which may involve deviations of the order of 20 to 40 degrees per 100 feet (30m).

The flexibility of the corrugated tubing may also be utilised to advantage to allow provision of reelable tubing, which may be of relatively large diameter, and which may provide relatively high levels of collapse resistance for a given wall thickness.

The presence of corrugations may also be utilised for coupling adjacent corrugated or part-corrugated tubular sections. By providing corresponding helical corrugations it is possible to thread adjacent tubular sections together by relative rotation, or it may simply be enough to push the sections together, or to corrugate an inner tubular in a corresponding manner to a surrounding outer tubular. The
14 thread provided by the corrugations may be parallel or tapered, and in other embodiments the corrugations may be circumferential. To facilitate provision of a seal at such a coupling, deformable material may be provided on one or both of the tubular sections. This aspect of the invention may be utilised in a wide variety of applications, but is particularly useful in achieving a coupling at a lateral junction, where difficulties are often experienced when using conventional coupling-forming methods. For use in coupling sections of casing and liner, this feature obviates the need to provide separate connectors, and thus also avoids the upsets that are created by such connectors.
The couplings formed will also be better able to withstand torques applied to the tubulars.

If desired, only a portion of a tubular may be corrugated. The corrugated portion may be provided, as mentioned above, to facilitate coupling. For example, an upper portion of a liner may be corrugated to facilitate coupling with a liner hanger, or to engage a corrugated lower portion of existing casing, thus obviating the requirement to provide 'a separate liner hanger.
Alternatively, a selected portion of the tubular may be corrugated, such that the tubular will preferentially flex at the corrugated location, or if it is desire.d that a portion of the tubular have greater flexibility. This may be useful when the tubular is utilised in, for example, an earthquake zone, and earth movements are likely, or if it is desired to provide a tubular with a relatively flexible end portion to facilitate entry to a lateral bore.

The corrugated tubing of embodiments of the invention 5 may also be usefully employed in the creation of liner hangers and the like where it is desired to provide hanging support for a tubular within an exiting tubular or hanger while providing a fluid flow path to allow displacement of fluid from an annulus to facilitate cementixig of the 10 tubular. The flow path through the troughs of the corrugations may subsequently be closed by energising or activating seals above or below the corrugated portion, by subsequently expanding and flattening the corrugated portion, or simply by passing cement slurry into the
15 corrugations, which cement then sets or cures within the corrugations.

A temporary or permanent liner hanger may also be created by forcing a corrugated section of tubular into a bore section having an internal diameter less than the diameter described by the peaks of the tubular, such that the corrugated section experiences a degree of elastic deformation, and the resulting restoring force produced by the deformation provides for sufficient frictional contact between the tubular and the bore wall to retain the tubular in the bore. Alternatively, or in addition, a corrugated section of tubular may be placed in tension, such that the
16 diameter described by the tubular decreases. The tubular is then located in a bore section, and the tension then reduced, such that the tubular experiences an increase in diameter and engages the wall of the bore section.

The provision of circumferential or helical corrugations will tend to decrease the axial stiffness of a tubular and thus enhances the ability of the tubular to accommodate axial compression or expansion. Thus, completion tubing featuring a corrugated section may accommodate the axial forces that result from the temperature 'variations experienced by the tubing, for example between the tubing being run into the bore and sealed and located in the bore, and the tubing subsequently carrying relatively high temperature production fluid.

Such temperature variations, and the resulting length changes in the tubing, are conventionally accommodated by means of seal bands engaging a polished bore receptacle (PBR), which permits a degree of movement of the lower end of the tubing, without loss of seal integrity. However, the seals and the PBR are vulnerable to damage.
Embodiments of the present invention allow completion or production tubing to be locked into a seal. Corrugated tubing sections may be provided at any appropriate location in the tubing, and indeed a similar advantage may be achieved by providing a bore-mounted seal which incorporates a corrugated bellows section between the seal
17 and the mounting to the bore wall.

As noted above, corrugated tubulars in accordance with aspects of the invention may be subject to diametric expansion. On experiencing such expansion, corrugated tubulars tend to axially expand. This contrasts with swage expansion of parallel walled cylindrical tubulars, which tends to result in axial contraction of the tubular. This contraction may present significant problems, particularly in bottom-up swage expansion; a string of tubulars may contract by approximately 50, and if the string is differentially stuck in the bore above the expansion location, the tubing will tend to stretch and the tubulars may part, particularly at weak points such as tubular connections. If desired, these effects may be combined, by providing a corrugated section or section in a tubular to be swage expanded, such that, following expansion, there is no net change in the overall length-of the tubular.
Furth4rmore, even if a degree of axial expansion or contraction is present, the presence of, the corrugations will readily accommodate a degree of contraction, and the presence of the corrugations makes the occurrence of differential sticking far less likely. Alternatively, it is possible to select a degree of corrugation that when expanded and flattened neither axially expands nor contracts.

17a According to an aspect of the present invention there is provided a method of=lining a drilled bore, the method comprising:
providing a tool having a radially extendable member;
running a tubular into the drilled bore; and after running the tubular into the bore, forming one or more helical or solely circumferential, selected periodic corrugations in at least a portion of a wall of the tubular using the radially extendable member, wherein the wall portion is diametrically expanded at peaks and troughs of the corrugations.
According to another aspect of the present invention there is provided a method of lining a drilled bore, comprising:
running a tubular into a drilled bore;
diametrically expanding the tubular; and corrugating the tubular in the bore in a separate step from expanding, wherein the tubular is diametrically expanded before corrugation.
According to a further aspect of the invention there is provided a method of lining a drilled bore, the method comprising:

providing a tool having a radially extendable member;
running a tubular into the drilled bore to intersect a problem formation; and after running the tubular into the bore, forming one or more helical or solely circumferential, selected periodic corrugations in a wall of the tubular using the radially extendable member, at least where the tubular intersects the problem formation, wherein the wall is a diametrically expanded at peaks and troughs of the corrugations.

17b According to a further aspect of the present invention there is provided a method of forming a downhole tubular, comprising:

providing a rotary expansion tool having a radially extendable member; and corrugating at least a portion of a cylindrical tubular by rotating the rotary expansion tool relative to the tubular to produce one or more helical or solely circumferential, selected periodic corrugations with the radially extendable member, wherein the tubular portion is diametrically expanded at peaks and troughs of the corrugations.
According to a further aspect of the invention there is provided a downhole tubular, comprising:
a wall having one or more helical corrugations formed in both an inner surface and an outer surface of the wall; and an elongate element located in one or more troughs of the corrugations, wherein the wall is made from metal.

According to a further aspect of the invention there is provided a method of running tubing into a bore to minimize differential sticking, the method comprising:

identifying whether elongate members located in a selected bore are likely to encounter differential sticking; -providing corrugated tubing; and running the tubing into the bore.
According to a further aspect of the invention there is provided a method of running tubing into a bore, the method comprising:
running a corrugated-wall tubular into the bore;
rotating the tubular in the bore; and cementing the tubular in the bore.

17c According to a further aspect of the invention there is provided a method of running tubing into a bore, the method comprising:

running a tubular defining a helically corrugated configuration into the bore; and rotating the tubular in the bore to negotiate a tight spot in the bore, wherein the tubular is made from metal.
According to a further aspect of the invention there is provided downhole tubulars, each tubular comprising at least one corrugated end portion, whereby the tubulars are adapted to be coupled to one another by locating the corrugated end portion of one tubular within the corrugated end portion of another tubular, wherein the corrugations are helical and the tubulars are made from metal.
According to a further aspect of the invention there is provided a method of locating a tubular within a larger diameter bore, the method comprising:
providing a corrugated tubular;
locating the tubular in the larger diameter bore; and reducing a degree of tension applied to the tubular such that the tubular axially contracts and diametrically expands.

According to a further aspect of the invention there is provided completion tubing having at least a portion of corrugated wall to accommodate a degree of at least one of axial compression and expansion in combination with a seal for locking a lower end of the tubing relative to surrounding bore-lining tubing.
According to a further aspect of the invention there is provided a method of lining a bore, the method comprising:

17d diametrically expanding a wall of a helically or solely circumferentially corrugated tubular in the bore such that the wall is deformed about its entire circumference; and selecting at least one of a degree of expansion, ari expansion method, and a degree of corrugation of the tubular such that the tubular both before and after the diametrically expanding has a length that is substantially unchanged.

According to a further aspect of the invention there is provided a downhole tubular, comprising:
a male helically corrugated first end portion adapted to be coupled to a female helically corrugated end portion of a substantially identical second downhole tubular;
a female helically corrugated second end portion adapted to be coupled to a male helically corrugated end portion of the substantially identical second downhole tubular; and a body portion extending between the end portions, wherein the tubular is made from metal.
According to a further aspect of the invention there is provided a method of lining a drilled bore, the method comprising:

providing a tool having a radially extendable member;
running a tubular into the drilled bore; and corrugating the tubular in the bore into selected periodic corrugations, each having a substantial circumferential component, wherein the tubular is diametrically expanded at the corrugations and between the corrugations by the radially extendable member configured to also provide the corrugations.
According to a further aspect of the invention there is provided a method of lining a drilled bore, the method comprising:
providing a tool having a radially extendable member;

17e running a tubular into a drilled bore to intersect a problem formation; and corrugating the tubular in the bore into selecteci periodic corrugations at least where the tubular intersects the problem formation, each corrugation having a substantial circumferential component, wherein the tubular is diametrically expanded at the corrugations and between the corrugations with the radially extendable member_-configured to also form the corrugations.
According to a further aspect of the invention there is provided a method of forming a downhole tubular, comprising:
providing a rotary expansion tool having a radially extendable member; and corrugating a cylindrical tubular by rotating the rotary expansion tool relative to the tubular to produce selected period corrugations, each having a substantial circumferential component, wherein the tubular is diametrically expanded at the corrugations and between the corrugations by the radially extendable member configured to also form the corrugations.
According to a further aspect of the invention there is provided a downhole tubular, comprising:

a wall having one or more helical corrugations formed therein; and an elongate element located in one or more internal troughs of the corrugations, wherein:

the wall is made from metal, and a wall thickness of a corrugated portion is the same as a wall thickness of an un-corrugated portion.
According to a further aspect of the invention there is provided a downhole tubular, comprising:

17f a wall having one or more helical corrugations formed therein; and an elongate element located in one or more troughs of the corrugations, wherein:

the wall is made from metal, the wall has a substantially uniform thickness, and the troughs are internal troughs.

According to a further aspect of the invention there is -provided a method of lining a drilled bore, 'the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, wherein the tubular is diametrically expanded in a separate step from the corrugation step.

According to a further aspect of the invention there is provided a method of lining. a drilled bore, the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, wherein the tubular is diametrically expanded before corrugation in a separate step from the corrugation step.

According to a further aspect of the invention there is provided a method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, wherein the tubular is diametrically expanded after corrugation in a separate step from the corrugation step.

According to a further aspect of the invention there is provided a method of lining a drilled bore, the method comprising:

running a tubular into a drilled bore; and 17g corrugating the tubular in the bore, wherein the tubular is diametrically expanded after corrugation in a separate step from the corrugation step, and wherein the diametric expansion creates a cylindrical wall form.

According to a further aspect of the invention there is provided a method of lining a drilled bore, the method comprising:

running a tubular into a drilled bore;
corrugating the tubular in the bore;
locating at least one further tubular internally of the corrugated tubular; and then diametrically expanding the at least one further tubular.
According to a further aspect of the invention there is provided a method of lining a drilled bore, the method comprising:

running a tubular into a drilled bore;
corrugating the tubular in the bore; and locating a tool or device within the corrugated tubular.
18 BRIEF DESCRIPTION OF THE DRAWINGS

These and other aspects of the present will now be described, by way of example, with reference to the accompanying drawings, in which:

Figure 1 illustrates a tubular being corrugated in accordance with an embodiment of a first aspect of the present invention;

Figures 2 and 3 illustrate steps in the corrugation of a downhole tubular in accordance with an embodiment 'of another aspect of the present invention.

Figures 4 and 5, and Figures 6 and 7 illustrate steps in the expansion of corrugated tubulars in accordance with embodiments of further aspects of the present invention;
and Figure 8 is a schematic illustration of a lateral junction.featuring tubing in accordance with an embodiment of a yet further aspect of the present invention.

DETAILED DESCRIPTION OF THE DRAWINGS

Reference is first made to Figure 1 of the drawings, which illustrates a,tubular 10 being corrugated in accordance with an embodiment of a first aspect of the present invention. Located within the tubular is a corrugation tool 20, mounted on a pipe 21, the tool 20 being of a similar form to the expansion tools as described and illustrated in applicant's WO 00/37766. The tool 20 'l 9 comprises a hollow body 22 having three radially extending apertures 24 (only two shown) which each accommodate a piston 26, with a roller 28 being mounted on each piston.
The rollers 28 are each arranged to rotate around a respective axis which is slightly skewed relative to the tool body axis. Each roller features'a raised rib 30, the relative axial locations of the ribs 30 being such that rotation of the fluid-pressure energised tool 20 causes the roller ribs 30 to create a single helical corrugation 32 in the wall of the tubular 20, and also pulls the tool 20 through the tubular 10. Corrugation of the tubular 10 increases the collapse resistance of the tubular 10.

Reference is now made to Figures 2 and 3 of the drawings, which illustrates, somewhat schematically, a downhole tubular 40 being corrugated and expanded in accordance with an embodiment of another aspect of the present invention. As illustrated in Figure 2, the tubular 40 is first run into the lower open section of a drilled bore 42, through existing casing 44.

An appropriate corrugation tool, such as illustrated in Figure 1, is then run into the tubular 40, mounted on the lower end of a pipe string 21. The tool 20 is rotated and advanced through the tubular 40 to create a single helical corrugation 52 in the wall of the tubing 40, as shown in Figure 3. Furthermore, the tool 20 diametrically expands the tubular 40 to a minimum internal diameter corresponding to the internal diameter of the casing 44.

The expanded and corrugated tubular 40 may serve as an intermediate casing, allowing further, conventional casing 54 (shown in chain-dotted outline in Figure 3) to be 5 subsequently run in and located in the bore without any additional loss of diameter.

Reference is now made to Figures 4 and 5 of the drawings, which illustrate a corrugated tubular 60 being run into a bore 62 and expanded to a parallel-walled form 10, (Figure 5) within the bore 62.

The tubular 60 may form part of a casing string to be run into and set in the bore 62. The tubular 60 is initially corrugated, and this offers a number of advantages when running in. Only the peaks of the 15 corrugations contact the bore wall, such that differential sticking is unlikely to occur. Furthermore, if the tubular 60 is rotated in the bore 62, the helical corrugations will tend to act in a similar manner to a screw thread, and pull the tubular through the bore; this may be useful in 20 negotiating tight spots, ledges and the like. In certain situations it may also be advantageous to rotate the tubular 60 in the opposite direction, to allow the tubular to be retracted. The corrugations will also assist in dislodging and agitating cuttings which may have settled on the low side of the bore. The flexibility provided by the corrugations will also facilitate bending of the string, to facilitate negotiation of bends or curves in the bore 62.
The presence of the corrugations also reduces the cyclic stresses experienced by the relatively stiff casing connectors 63 if the string is being rotated.

Ori reaching the desired location, the tubular is diametrically expanded, using a rotary expander as described with reference to Figure 1, which expansion also creates an expanded tubular 60 with substantially parallel walls.

Figures 6 and 7 illustrate a corrugated tubular 64 being run into a bore 66 (Figure 6), which tubular 64 is then expanded to a larger diameter, while retaining a corrugated wall (Figure 7)_ It will be noted that the external troughs formed by the corrugations are filled with a deformable material 67 which may serve a number of purposes, as described above, and also accommodate a member 68, which may be a conduit, signal carrier or the like. The tubular 64 may subsequently receive a further tubular 65 or a device 69 adapted to engage with the corrugated tubular wall.

Reference is now made to Figure 8 of the drawings, which is a schematic illustration of a lateral junction 70 featuring tubing in accordance with an embodiment of a second aspect of the present invention.

The junction 70 is between a primary bore 72 and a lateral bore 74, and the junction 70 features a pre-corrugated casing 76, the corrugations facilitating accommodation of the deviation between the bores 72, 74.
Furthermore, to place the casing 76 in the bore 74, the casing 76 may have been rotated such that the helical corrugations act as screw threads, to assist in negotiating tight spots in the bores 72, 74, and in particular the window into the lateral bore 74.

Following the casing 76 being secured at the junction 70, and the lateral bore 74 being drilled beyond the.
section of the bore lined by the casing 76, a parallel-walled liner 78 is run into the bore 74, at least the upper end of the liner 78 overlapping the lower end of the casing 76. At least the overlapping portion of the liner 78 is then expanded and corrugated, in a similar manner to that described above with reference to Figure 1, to correspond to the surrounding corrugated casing 76. The liner 78 will thus be locked and sealed relative to the casing 76.

In other embodiments, the liner may have been corrugated on surface, and once in overlapping relationship with the casing the liner may be expanded while retaining the corrugations.

Those of skill in the art will recognise that these embodiments are merely exemplary of the present invention, and that various modifications and improvements may be made thereto, without departing from the scope of the invention.
For example, the invention has utility in subsea applications, for example in pipelines, where the flexibility of the corrugated pipes and the ability to accommodate axial extension and contraction facilitate maintaining pipeline integrity when the pipeline experiences temperature variations or movements in the supporting seabed.

Claims (103)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A method of lining a drilled bore, the method comprising:

providing a tool having a radially extendable member;
running a tubular into the drilled bore; and after running the tubular into the bore, forming one or more helical or solely circumferential, selected periodic corrugations in at least a portion of a wall of the tubular using the radially extendable member, wherein the wall portion is diametrically expanded at peaks and troughs of the corrugations.
2. The method of claim 1, wherein the corrugations of the tubular increases the collapse resistance of the tubular.
3. The method of claim 1 or 2, wherein the tubular is a thin-walled tubular.
4. The method of claim 3, wherein the tubular has a wall thickness of less than 6 mm.
5. The method of claim 4, wherein the tubular has a wall thickness of around 3 to 4 mm.
6. The method of claim 1 or 2, wherein the tubular has a wall thickness of at least 6 mm.
7. The method of any one of claims 1 to 6, wherein the tubular is run in through existing bore-lining tubing having an internal first diameter and the tubular is then expanded to an internal diameter at least as large as the first diameter.
8. The method of any one of claims 1 to 7, wherein the tubular is corrugated from the top down.
9. The method of any one of claims 1 to 7, wherein the tubular is corrugated from the bottom up.
10. The method of any one of claims 1 to 9, wherein the tubular is expanded from the top down.
11. The method of any one of claims 1 to 9, wherein the tubular is expanded from the bottom up.
12. The method of any one of claims 1 to 11, further comprising the step of cementing the tubular in the bore.
13. The method of any one of claims 1 to 12, wherein the tubular carries a deformable material on an external surface thereof.
14. The method of any one of claims 1 to 13, wherein the tubular is provided in combination with a sleeve of deformable material.
15. The method of any one of claims 1 to 14, wherein only a portion of the tubular is corrugated, retaining a section of cylindrical-walled tubular.
16. The method of any one of claims 1 to 14, wherein all of the tubular is corrugated.
17. The method of any one of claims 1 to 16, wherein the corrugations are solely circumferential.
18. The method of any one of claims 1 to 16, wherein the corrugations are helical.
19. The method of any one of claims 1 to 18, further comprising locating at least one further tubular internally of the corrugated tubular.
20. The method of claim 19, wherein the at least one further tubular has a cylindrical wall.
21. The method of claim 19 or 20, wherein the at least one further tubular is subsequently diametrically expanded.
22. The method of any one of claims 1 to 21, further comprising locating the tool within the corrugated tubular.
23. The method of any one of claims 1 to 22, wherein the tool is a rotary expander and forming the corrugations comprises rotating the rotary expander within the tubular and axially advancing the rotary expander through the tubular.
24. The method of claim 23, wherein the rotary expander is configured to create a single-start helical corrugation.
25. The method of claim 23, wherein the rotary expander is configured to create a multiple-start plurality of helical corrugations.
26. The method of any one of claims 1 to 25, wherein the tubular is located to intersect a problem formation.
27. The method of any one of claims 1 to 26, wherein the tubular is made from metal.
28. A method of lining a drilled bore, comprising:
running a tubular into a drilled bore;
diametrically expanding the tubular; and corrugating the tubular in the bore in a separate step from expanding, wherein the tubular is diametrically expanded before corrugation.
29. The method of claim 28, wherein the tubular is made from metal.
30. A method of lining a drilled bore, the method comprising:
providing a tool having a radially extendable member;
running a tubular into the drilled bore to intersect a problem formation; and after running the tubular into the bore, forming one or more helical or solely circumferential, selected periodic corrugations in a wall of the tubular using the radially extendable member, at least where the tubular intersects the problem formation, wherein the wall is a diametrically expanded at peaks and troughs of the corrugations.
31. The method of claim 30, further comprising expanding at least a portion of the tubular separately from corrugating the tubular.
32. The method of claim 30, wherein the tubular is made from metal.
33. A method of forming a downhole tubular, comprising:
providing a rotary expansion tool having a radially extendable member; and corrugating at least a portion of a cylindrical tubular by rotating the rotary expansion tool relative to the tubular to produce one or more helical or solely circumferential, selected periodic corrugations with the radially extendable member, wherein the tubular portion is diametrically expanded at peaks and troughs of the corrugations.
34. The method of claim 33, wherein the corrugations are helical and the tool is advanced axially relative to the tubular during corrugation.
35. The method of claim 33, wherein the tubular is made from metal.
36. A downhole tubular, comprising:

a wall having one or more helical corrugations formed in both an inner surface and an outer surface of the wall; and an elongate element located in one or more troughs of the corrugations, wherein the wall is made from metal.
37. The tubular of claim 36, wherein the elongate element is a signal carrier.
38. The tubular of claim 36, wherein the elongate member is a conduit.
39. The tubular of claim 36, wherein the elongate element is a power carrier.
40. The tubular of claim 36, wherein a sensing element is located in the troughs of the corrugations.
41. The tubular of claim 36, wherein the elongate element is an optical fibre.
42. The method of claim 36, wherein the troughs are internal troughs.
43. The method of claim 36, wherein the troughs are external troughs.
44. A method of running tubing into a bore to minimize differential sticking, the method comprising:
identifying whether elongate members located in a selected bore are likely to encounter differential sticking;

providing corrugated tubing; and running the tubing into the bore.
45. The method of claim 44, further comprising cementing the tubing in the bore.
46. The method of claim 44, wherein the tubing is made from metal.
47. A method of running tubing into a bore, the method comprising:
running a corrugated-wall tubular into the bore;

rotating the tubular in the bore; and cementing the tubular in the bore.
48. The method of claim 47, wherein the tubular is a tubing string comprising a plurality of tubing sections joined by relatively rigid connectors.
49. The method claim 47, wherein the tubular is rotated to dislodge sediment in the bore.
50. The method of claim 47, further comprising drilling with a drill bit supported by the tubular.
51. The method of claim 47, wherein the tubular is rotated during cementing.
52. The method of claim 47, wherein the tubular is made from metal.
53. The method of claim 47, further comprising expanding the tubular.
54. A method of running tubing into a bore, the method comprising:
running a tubular defining a helically corrugated configuration into the bore; and rotating the tubular in the bore to negotiate a tight spot in the bore, wherein the tubular is made from metal.
55. Downhole tubulars, each tubular comprising at least one corrugated end portion, whereby the tubulars are adapted to be coupled to one another by locating the corrugated end portion of one tubular within the corrugated end portion of another tubular, wherein the corrugations are helical and the tubulars are made from metal.
56. The tubulars of claim 55, wherein the corrugated end portions are parallel.
57. The tubulars of claim 55, wherein the corrugated end portions are tapered.
58. The tubulars of claim 55, wherein deformable sealing material is provided on the corrugated end portion of at least one of the tubulars.
59. A method of locating a tubular within a larger diameter bore, the method comprising:
providing a corrugated tubular;
locating the tubular in the larger diameter bore; and reducing a degree of tension applied to the tubular such that the tubular axially contracts and diametrically expands.
60. The method of claim 59, wherein the tubular is initially under tension.
61. The method of claim 59, wherein the degree of tension applied to the tubular is reduced by placing the tubular in compression.
62. The method of claim 59, wherein a degree of diametric expansion of the tubular is such that the tubular engages the surrounding bore wall.
63. The method of claim 59, wherein the tubular is made from metal.
64. Completion tubing having at least a portion of corrugated wall to accommodate a degree of at least one of axial compression and expansion in combination with a seal for locking a lower end of the tubing relative to surrounding bore-lining tubing.
65. The tubing of claim 64, wherein the completion tubing is made from metal.
66. The tubing of claim 64, wherein one or more corrugations of the wall are solely circumferential.
67. The tubing of claim 64, wherein one or more corrugations of the wall are helical.
68. The tubing of claim 64, wherein one or more corrugations of the wall have selected periods.
69. A method of lining a bore, the method comprising:
diametrically expanding a wall of a helically or solely circumferentially corrugated tubular in the bore such that the wall is deformed about its entire circumference; and selecting at least one of a degree of expansion, an expansion method, and a degree of corrugation of the tubular such that the tubular both before and after the diametrically expanding has a length that is substantially unchanged.
70. The method of claim 69, wherein the tubular is made from metal.
71. A downhole tubular, comprising:
a male helically corrugated first end portion adapted to be coupled to a female helically corrugated end portion of a substantially identical second downhole tubular;
a female helically corrugated second end portion adapted to be coupled to a male helically corrugated end portion of the substantially identical second downhole tubular; and a body portion extending between the end portions, wherein the tubular is made from metal.
72. The tubular of claim 71, wherein the end portions of the tubular are parallel.
73. The tubular of claim 71, wherein the end portions of the tubular are tapered.
74. The tubular of claim 71, further comprising a deformable material disposed along an outer surface or within an inner surface of at least one of the end portions of the tubular to form a seal with a respective mating end portion of the second tubular.
75. The tubular of claim 71, wherein a wall of the body portion has one or more corrugations formed therein.
76. The tubular of claim 75, wherein the body corrugations are helical and further comprising an elongate element located in one or more troughs of the body corrugations.
77. The tubular of claim 76, wherein the elongate element is a signal carrier.
78. The tubular of claim 76, wherein the elongate element is a conduit.
79. The tubular of claim 76, wherein the elongate element is a power carrier.
80. The tubular of claim 76, wherein the elongate element is an optical fibre.
81. The tubular of claim 76, wherein the troughs are internal.
82. The tubular of claim 76, wherein the troughs are external.
83. The tubular of claim 76, wherein the corrugations are formed both in an inner surface and an outer surface of the wall.
84. The tubular of claim 76, wherein a thickness of the wall is substantially uniform.
85. The tubular of claim 76, further comprising a sensing element located in the troughs of the body corrugations.
86. The tubular or claim 75, further comprising sealing or filing material located in a trough of the body corrugations.
87. A method of lining a drilled bore, the method comprising:

providing a tool having a radially extendable member;
running a tubular into the drilled bore; and corrugating the tubular in the bore into selected periodic corrugations, each having a substantial circumferential component, wherein the tubular is diametrically expanded at the corrugations and between the corrugations by the radially extendable member configured to also provide the corrugations.
88. A method of lining a drilled bore, the method comprising:
providing a tool having a radially extendable member;
running a tubular into a drilled bore to intersect a problem formation; and corrugating the tubular in the bore into selected periodic corrugations at least where the tubular intersects the problem formation, each corrugation having a substantial circumferential component, wherein the tubular is diametrically expanded at the corrugations and between the corrugations with the radially extendable member configured to also form the corrugations.
89. A method of forming a downhole tubular, comprising:
providing a rotary expansion tool having a radially extendable member; and corrugating a cylindrical tubular by rotating the rotary expansion tool relative to the tubular to produce selected period corrugations, each having a substantial circumferential component, wherein the tubular is diametrically expanded at the corrugations and between the corrugations by the radially extendable member configured to also form the corrugations.
90. A downhole tubular, comprising:
a wall having one or more helical corrugations formed therein; and an elongate element located in one or more internal troughs of the corrugations, wherein:

the wall is made from metal, and a wall thickness of a corrugated portion is the same as a wall thickness of an un-corrugated portion.
91. The tubular of claim 90, wherein the elongate element is a signal carrier.
92. The tubular of claim 90, wherein the elongate element is a conduit.
93. The tubular of claim 90, wherein the elongate element is a power carrier.
94. The tubular of claim 90, further comprising a sensing element located in the troughs of the corrugations.
95. The tubular of claim 90, wherein the elongate element is an optical fibre.
96. A downhole tubular, comprising:

a wall having one or more helical corrugations formed therein; and an elongate element located in one or more troughs of the corrugations, wherein:
the wall is made from metal, the wall has a substantially uniform thickness, and the troughs are internal troughs.
97. The tubular of claim 96, wherein the wall has a uniform thickness.
98. A method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, wherein the tubular is diametrically expanded in a separate step from the corrugation step.
99. A method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, wherein the tubular is diametrically expanded before corrugation in a separate step from the corrugation step.
100. A method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, wherein the tubular is diametrically expanded after corrugation in a separate step from the corrugation step.
101. A method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore; and corrugating the tubular in the bore, wherein the tubular is diametrically expanded after corrugation in a separate step from the corrugation step, and wherein the diametric expansion creates a cylindrical wall form.
102. A method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore;
corrugating the tubular in the bore;
locating at least one further tubular internally of the corrugated tubular; and then diametrically expanding the at least one further tubular.
103. A method of lining a drilled bore, the method comprising:
running a tubular into a drilled bore;
corrugating the tubular in the bore; and locating a tool or device within the corrugated tubular.
CA002461278A 2002-07-06 2003-07-04 Corrugated downhole tubulars Expired - Fee Related CA2461278C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0215659.4 2002-07-06
GBGB0215659.4A GB0215659D0 (en) 2002-07-06 2002-07-06 Formed tubulars
PCT/GB2003/002880 WO2004005669A1 (en) 2002-07-06 2003-07-04 Corrugated downhole tubulars

Publications (2)

Publication Number Publication Date
CA2461278A1 CA2461278A1 (en) 2004-01-15
CA2461278C true CA2461278C (en) 2009-09-08

Family

ID=9939955

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002461278A Expired - Fee Related CA2461278C (en) 2002-07-06 2003-07-04 Corrugated downhole tubulars

Country Status (7)

Country Link
US (1) US7350584B2 (en)
EP (1) EP1520084B1 (en)
AU (1) AU2003251160A1 (en)
CA (1) CA2461278C (en)
GB (1) GB0215659D0 (en)
NO (1) NO334722B1 (en)
WO (1) WO2004005669A1 (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7284603B2 (en) 2001-11-13 2007-10-23 Schlumberger Technology Corporation Expandable completion system and method
GB0130849D0 (en) * 2001-12-22 2002-02-06 Weatherford Lamb Bore liner
GB2427887B (en) 2004-03-12 2008-07-30 Schlumberger Holdings Sealing system and method for use in a well
US7757774B2 (en) * 2004-10-12 2010-07-20 Weatherford/Lamb, Inc. Method of completing a well
RU2007125986A (en) 2004-12-10 2009-01-20 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) METHOD OF ADAPTATION OF A TUBULAR LINK IN A SEDIMENT WELL
NO331536B1 (en) 2004-12-21 2012-01-23 Schlumberger Technology Bv Process for generating a regulating stream of wellbore fluids in a wellbore used in hydrocarbon production, and valve for use in an underground wellbore
US7373991B2 (en) 2005-07-18 2008-05-20 Schlumberger Technology Corporation Swellable elastomer-based apparatus, oilfield elements comprising same, and methods of using same in oilfield applications
BRPI0613612A2 (en) * 2005-07-22 2012-11-06 Shell Int Research method for creating and testing an annular barrier
US7798225B2 (en) * 2005-08-05 2010-09-21 Weatherford/Lamb, Inc. Apparatus and methods for creation of down hole annular barrier
US7407007B2 (en) 2005-08-26 2008-08-05 Schlumberger Technology Corporation System and method for isolating flow in a shunt tube
US7543640B2 (en) 2005-09-01 2009-06-09 Schlumberger Technology Corporation System and method for controlling undesirable fluid incursion during hydrocarbon production
WO2007064529A2 (en) * 2005-12-01 2007-06-07 Arkema France Fluoropolymer modified acrylic capstock
CA2616055C (en) * 2007-01-03 2012-02-21 Weatherford/Lamb, Inc. System and methods for tubular expansion
US20080217002A1 (en) * 2007-03-07 2008-09-11 Floyd Randolph Simonds Sand control screen having a micro-perforated filtration layer
US9551201B2 (en) 2008-02-19 2017-01-24 Weatherford Technology Holdings, Llc Apparatus and method of zonal isolation
AU2009215521B2 (en) 2008-02-19 2012-05-24 Weatherford Technology Holdings, Llc Expandable packer
CA2749593C (en) * 2008-04-23 2012-03-20 Weatherford/Lamb, Inc. Monobore construction with dual expanders
WO2010072751A2 (en) * 2008-12-24 2010-07-01 Shell Internationale Research Maatschappij B.V. Expanding a tubular element in a wellbore
EP2202383A1 (en) * 2008-12-24 2010-06-30 Shell Internationale Researchmaatschappij B.V. Method of expanding a tubular element in a wellbore
US9366237B2 (en) * 2010-05-25 2016-06-14 Siemens Aktiengesellschaft Segmented jacket construction, in particular for a foundation for a wind turbine installation
NO335796B1 (en) * 2011-01-27 2015-02-16 Oceaneering Mech As Machining apparatus
US9140094B2 (en) 2011-02-24 2015-09-22 Baker Hughes Incorporated Open hole expandable packer with extended reach feature
US8662161B2 (en) 2011-02-24 2014-03-04 Baker Hughes Incorporated Expandable packer with expansion induced axially movable support feature
US8151873B1 (en) 2011-02-24 2012-04-10 Baker Hughes Incorporated Expandable packer with mandrel undercuts and sealing boost feature
US8550178B2 (en) 2011-03-09 2013-10-08 Baker Hughes Incorporated Expandable isolation packer
CA2752022C (en) * 2011-09-09 2018-10-16 Cenovus Energy Inc. Apparatus for reducing operationally induced deformities in well production screens
RU2014124692A (en) * 2011-11-18 2015-12-27 Рума Продактс Холдинг Б.В. SEALING COUPLING AND ASSEMBLY INCLUDING SUCH SEALING COUPLING
NO336371B1 (en) * 2012-02-28 2015-08-10 West Production Technology As Downhole tool feeding device and method for axially feeding a downhole tool
GB201211716D0 (en) * 2012-07-02 2012-08-15 Meta Downhole Ltd A liner tieback connection
US9708891B2 (en) 2012-10-24 2017-07-18 Wwt North America Holdings, Inc. Flexible casing guide running tool
US9234403B2 (en) * 2013-01-31 2016-01-12 Baker Hughes Incorporated Downhole assembly
US9453393B2 (en) * 2014-01-22 2016-09-27 Seminole Services, LLC Apparatus and method for setting a liner
CN103993861B (en) * 2014-05-28 2017-05-24 大庆华翰邦石油装备制造有限公司 Device for achieving resistance decrement and centering in peripheral direction
RU2576767C2 (en) * 2014-07-02 2016-03-10 Акционерное общество "Уфимское агрегатное предприятие "Гидравлика"(АО "УАП"Гидравлика") Device for intensification of heat emission in circular helical channel
GB201414256D0 (en) * 2014-08-12 2014-09-24 Meta Downhole Ltd Apparatus and method of connecting tubular members in multi-lateral wellbores
WO2018052405A1 (en) 2016-09-14 2018-03-22 Halliburton Energy Services, Inc. Annular flow rings for sand control screen assemblies
EA037727B1 (en) 2016-11-01 2021-05-14 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Method for sealing cavities in or adjacent to a cured cement sheath surrounding a well casing
CA3104414A1 (en) 2018-07-20 2020-01-23 Shell Internationale Research Maatschappij B.V. Method of remediating leaks in a cement sheath surrounding a wellbore tubular
CN109236245B (en) * 2018-10-31 2021-04-13 长江大学 Shale gas well sand water discharging plunger
RU2714410C1 (en) * 2019-08-02 2020-02-14 Публичное акционерное общество "Газпром" Method of increasing well bottomhole resistance to destruction
NO346001B1 (en) * 2020-05-27 2021-12-13 Innovation Energy As Method for Preparing a Wellbore

Family Cites Families (148)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1881379A (en) * 1932-10-04 Stovepipe casing
US1301285A (en) 1916-09-01 1919-04-22 Frank W A Finley Expansible well-casing.
US1494128A (en) * 1921-06-11 1924-05-13 Power Specialty Co Method and apparatus for expanding tubes
US1654600A (en) * 1926-08-02 1928-01-03 Owen Yerkes Method of constructing caissons
US1827437A (en) * 1929-12-07 1931-10-13 Alfred H Pascoe Method of making reenforced drill pipe casings
US1880218A (en) * 1930-10-01 1932-10-04 Richard P Simmons Method of lining oil wells and means therefor
US1896112A (en) 1931-04-25 1933-02-07 Richard P Simmons Method of constructing and operating oil wells
US2246418A (en) * 1938-03-14 1941-06-17 Union Oil Co Art of well drilling
US2402497A (en) * 1943-04-12 1946-06-18 Chicago Metal Hose Corp Flexible tubing
US2840897A (en) * 1954-01-07 1958-07-01 Airtron Inc Method of making flexible metal tubing
US2999552A (en) 1959-03-04 1961-09-12 Fred K Fox Tubular drill string member
US3203451A (en) 1962-08-09 1965-08-31 Pan American Petroleum Corp Corrugated tube for lining wells
US3254508A (en) * 1963-09-18 1966-06-07 Drilco Oil Tools Inc Resilient unit for drill strings
US3277231A (en) * 1964-01-17 1966-10-04 Electrolux Corp Conductor-carrying flexible conduit
US3194331A (en) 1964-05-22 1965-07-13 Arnold Pipe Rental Company Drill collar with helical grooves
US3297092A (en) * 1964-07-15 1967-01-10 Pan American Petroleum Corp Casing patch
US3554308A (en) * 1968-12-12 1971-01-12 Ingersoll Rand Co Rock drill rod
US4261671A (en) * 1977-09-26 1981-04-14 Shell Oil Company Corrugated pipe for deepwater applications
US4336849A (en) * 1980-07-03 1982-06-29 Max Hug Earth drilling device for extracting earth samples
US4566495A (en) 1981-05-18 1986-01-28 Baker Oil Tools, Inc. Concentric walled conduit for a tubular conduit string
US4360493A (en) * 1981-07-09 1982-11-23 Kramer Sr Vance M Flexible corrugated rubber tubing of dual composition
US4482086A (en) * 1983-08-04 1984-11-13 Uop Inc. Expandable packer assembly for sealing a well screen to a casing
CN1007635B (en) * 1985-04-01 1990-04-18 田善达 Underearth propeller
US4831346A (en) * 1987-03-26 1989-05-16 Andrew Corporation Segmented coaxial transmission line
US5026209A (en) 1989-08-04 1991-06-25 Eau-Viron Incorporated Containment casing for a deep well gravity pressure reactor vessel
US5040620A (en) * 1990-10-11 1991-08-20 Nunley Dwight S Methods and apparatus for drilling subterranean wells
US5174340A (en) 1990-12-26 1992-12-29 Shell Oil Company Apparatus for preventing casing damage due to formation compaction
US5358358A (en) * 1993-02-17 1994-10-25 Dayco Products, Inc. System for conveying a fluid through an under-the-ground location and method of making the same
US6868906B1 (en) * 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
GB9510465D0 (en) 1995-05-24 1995-07-19 Petroline Wireline Services Connector assembly
GB2321292B (en) * 1995-09-28 1999-12-08 Composite Dev Corp Composite spoolable tube
US5921285A (en) * 1995-09-28 1999-07-13 Fiberspar Spoolable Products, Inc. Composite spoolable tube
UA67719C2 (en) 1995-11-08 2004-07-15 Shell Int Research Deformable well filter and method for its installation
GB9522942D0 (en) 1995-11-09 1996-01-10 Petroline Wireline Services Downhole tool
DE69620785T2 (en) 1995-12-09 2002-11-21 Weatherford Lamb CONNECTOR FOR A PIPELINE
US5927344A (en) 1996-01-03 1999-07-27 Nobileau; Philippe Subsea flexible pipe
GB9617115D0 (en) 1996-08-15 1996-09-25 Astec Dev Ltd Pipeline traction system
US6722442B2 (en) 1996-08-15 2004-04-20 Weatherford/Lamb, Inc. Subsurface apparatus
US5794702A (en) * 1996-08-16 1998-08-18 Nobileau; Philippe C. Method for casing a wellbore
US6142230A (en) 1996-11-14 2000-11-07 Weatherford/Lamb, Inc. Wellbore tubular patch system
US5785120A (en) 1996-11-14 1998-07-28 Weatherford/Lamb, Inc. Tubular patch
GB9625939D0 (en) 1996-12-13 1997-01-29 Petroline Wireline Services Expandable tubing
WO1998042947A1 (en) 1997-03-21 1998-10-01 Petroline Wellsystems Limited Expandable slotted tubing string and method for connecting such a tubing string
GB9714651D0 (en) 1997-07-12 1997-09-17 Petroline Wellsystems Ltd Downhole tubing
US6098717A (en) 1997-10-08 2000-08-08 Formlock, Inc. Method and apparatus for hanging tubulars in wells
GB9723031D0 (en) 1997-11-01 1998-01-07 Petroline Wellsystems Ltd Downhole tubing location method
GB9724335D0 (en) 1997-11-19 1998-01-14 Engineering With Excellence Sc Expandable slotted tube
US6092602A (en) 1998-01-27 2000-07-25 Halliburton Energy Services, Inc. Sealed lateral wellbore junction assembled downhole
US6073692A (en) * 1998-03-27 2000-06-13 Baker Hughes Incorporated Expanding mandrel inflatable packer
GB9817246D0 (en) 1998-08-08 1998-10-07 Petroline Wellsystems Ltd Connector
DE19853026C1 (en) 1998-11-18 2000-03-30 Icoma Fbs Gmbh Packtechnik Device for aligning sections of tubing e.g. multiple layers of paper cut in grades on their face side, has first conveyor belts running parallel to each other set up at a preset distance from second conveyor belts
AU766437B2 (en) 1998-12-22 2003-10-16 Weatherford/Lamb Inc. Downhole sealing for production tubing
AU772327B2 (en) 1998-12-22 2004-04-22 Weatherford Technology Holdings, Llc Procedures and equipment for profiling and jointing of pipes
US6253850B1 (en) 1999-02-24 2001-07-03 Shell Oil Company Selective zonal isolation within a slotted liner
US6409226B1 (en) * 1999-05-05 2002-06-25 Noetic Engineering Inc. “Corrugated thick-walled pipe for use in wellbores”
US6598677B1 (en) * 1999-05-20 2003-07-29 Baker Hughes Incorporated Hanging liners by pipe expansion
GB9920936D0 (en) 1999-09-06 1999-11-10 E2 Tech Ltd Apparatus for and a method of anchoring an expandable conduit
US6745846B1 (en) 1999-09-06 2004-06-08 E2 Tech Limited Expandable downhole tubing
GB9920970D0 (en) 1999-09-06 1999-11-10 Astec Dev Ltd Casing/pipeline cleaning tool
GB9921557D0 (en) 1999-09-14 1999-11-17 Petroline Wellsystems Ltd Downhole apparatus
US6431610B1 (en) * 1999-10-14 2002-08-13 Beijing Bork Metal Hose, Co., Ltd. Tube assembly for communicating water to a fixture
US6708769B2 (en) 2000-05-05 2004-03-23 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
US7373990B2 (en) * 1999-12-22 2008-05-20 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US6598678B1 (en) 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
US6578630B2 (en) 1999-12-22 2003-06-17 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
GB0216074D0 (en) * 2002-07-11 2002-08-21 Weatherford Lamb Improving collapse resistance of tubing
US8746028B2 (en) * 2002-07-11 2014-06-10 Weatherford/Lamb, Inc. Tubing expansion
US6698517B2 (en) 1999-12-22 2004-03-02 Weatherford/Lamb, Inc. Apparatus, methods, and applications for expanding tubulars in a wellbore
US7275602B2 (en) * 1999-12-22 2007-10-02 Weatherford/Lamb, Inc. Methods for expanding tubular strings and isolating subterranean zones
US6325148B1 (en) 1999-12-22 2001-12-04 Weatherford/Lamb, Inc. Tools and methods for use with expandable tubulars
GB0316048D0 (en) * 2003-07-09 2003-08-13 Weatherford Lamb Expansion apparatus
US6752215B2 (en) 1999-12-22 2004-06-22 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US6695063B2 (en) 1999-12-22 2004-02-24 Weatherford/Lamb, Inc. Expansion assembly for a tubular expander tool, and method of tubular expansion
US6457518B1 (en) 2000-05-05 2002-10-01 Halliburton Energy Services, Inc. Expandable well screen
US6454007B1 (en) 2000-06-30 2002-09-24 Weatherford/Lamb, Inc. Method and apparatus for casing exit system using coiled tubing
GB0017736D0 (en) * 2000-07-19 2000-09-06 Weatherford Lamb Tubing injector
GB0017690D0 (en) * 2000-07-20 2000-09-06 Weatherford Lamb Improvements in valves
US6536525B1 (en) 2000-09-11 2003-03-25 Weatherford/Lamb, Inc. Methods and apparatus for forming a lateral wellbore
GB0023032D0 (en) 2000-09-20 2000-11-01 Weatherford Lamb Downhole apparatus
US20020040788A1 (en) * 2000-10-11 2002-04-11 Hill Thomas G. Expandable lockout apparatus for a subsurface safety valve and method of use
US6845820B1 (en) 2000-10-19 2005-01-25 Weatherford/Lamb, Inc. Completion apparatus and methods for use in hydrocarbon wells
US7121351B2 (en) * 2000-10-25 2006-10-17 Weatherford/Lamb, Inc. Apparatus and method for completing a wellbore
GB0026063D0 (en) 2000-10-25 2000-12-13 Weatherford Lamb Downhole tubing
US7090025B2 (en) * 2000-10-25 2006-08-15 Weatherford/Lamb, Inc. Methods and apparatus for reforming and expanding tubulars in a wellbore
GB0028041D0 (en) 2000-11-17 2001-01-03 Weatherford Lamb Expander
US6488079B2 (en) * 2000-12-15 2002-12-03 Packless Metal Hose, Inc. Corrugated heat exchanger element having grooved inner and outer surfaces
GB0106819D0 (en) 2001-03-20 2001-05-09 Weatherford Lamb Tube manufacture
US6662876B2 (en) 2001-03-27 2003-12-16 Weatherford/Lamb, Inc. Method and apparatus for downhole tubular expansion
GB0108638D0 (en) 2001-04-06 2001-05-30 Weatherford Lamb Tubing expansion
US6510896B2 (en) 2001-05-04 2003-01-28 Weatherford/Lamb, Inc. Apparatus and methods for utilizing expandable sand screen in wellbores
US7172027B2 (en) * 2001-05-15 2007-02-06 Weatherford/Lamb, Inc. Expanding tubing
GB0111779D0 (en) 2001-05-15 2001-07-04 Weatherford Lamb Expanding tubing
GB0114872D0 (en) 2001-06-19 2001-08-08 Weatherford Lamb Tubing expansion
US6550539B2 (en) 2001-06-20 2003-04-22 Weatherford/Lamb, Inc. Tie back and method for use with expandable tubulars
US6571871B2 (en) 2001-06-20 2003-06-03 Weatherford/Lamb, Inc. Expandable sand screen and method for installing same in a wellbore
US6648075B2 (en) 2001-07-13 2003-11-18 Weatherford/Lamb, Inc. Method and apparatus for expandable liner hanger with bypass
US6591905B2 (en) 2001-08-23 2003-07-15 Weatherford/Lamb, Inc. Orienting whipstock seat, and method for seating a whipstock
US6752216B2 (en) 2001-08-23 2004-06-22 Weatherford/Lamb, Inc. Expandable packer, and method for seating an expandable packer
US20030042028A1 (en) * 2001-09-05 2003-03-06 Weatherford/Lamb, Inc. High pressure high temperature packer system
WO2003021080A1 (en) * 2001-09-05 2003-03-13 Weatherford/Lamb, Inc. High pressure high temperature packer system and expansion assembly
US6585053B2 (en) 2001-09-07 2003-07-01 Weatherford/Lamb, Inc. Method for creating a polished bore receptacle
US6688395B2 (en) 2001-11-02 2004-02-10 Weatherford/Lamb, Inc. Expandable tubular having improved polished bore receptacle protection
US20040007829A1 (en) * 2001-09-07 2004-01-15 Ross Colby M. Downhole seal assembly and method for use of same
US6691789B2 (en) 2001-09-10 2004-02-17 Weatherford/Lamb, Inc. Expandable hanger and packer
US6688399B2 (en) 2001-09-10 2004-02-10 Weatherford/Lamb, Inc. Expandable hanger and packer
US6877553B2 (en) 2001-09-26 2005-04-12 Weatherford/Lamb, Inc. Profiled recess for instrumented expandable components
US20030075340A1 (en) * 2001-10-23 2003-04-24 Khai Tran Lubricant for use in a wellbore
US20030075337A1 (en) * 2001-10-24 2003-04-24 Weatherford/Lamb, Inc. Method of expanding a tubular member in a wellbore
US7063143B2 (en) * 2001-11-05 2006-06-20 Weatherford/Lamb. Inc. Docking station assembly and methods for use in a wellbore
US6629567B2 (en) 2001-12-07 2003-10-07 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US6722441B2 (en) 2001-12-28 2004-04-20 Weatherford/Lamb, Inc. Threaded apparatus for selectively translating rotary expander tool downhole
US6732806B2 (en) 2002-01-29 2004-05-11 Weatherford/Lamb, Inc. One trip expansion method and apparatus for use in a wellbore
GB0206227D0 (en) * 2002-03-16 2002-05-01 Weatherford Lamb Bore-lining and drilling
GB0206414D0 (en) * 2002-03-19 2002-05-01 Weatherford Lamb A tubing injector
US6668930B2 (en) 2002-03-26 2003-12-30 Weatherford/Lamb, Inc. Method for installing an expandable coiled tubing patch
GB0209472D0 (en) * 2002-04-25 2002-06-05 Weatherford Lamb Expandable downhole tubular
US7017669B2 (en) * 2002-05-06 2006-03-28 Weatherford/Lamb, Inc. Methods and apparatus for expanding tubulars
US6742598B2 (en) 2002-05-29 2004-06-01 Weatherford/Lamb, Inc. Method of expanding a sand screen
US6685236B2 (en) 2002-06-28 2004-02-03 Weatherford/Lamb, Inc. Helically wound expandable tubular insert
GB0215668D0 (en) * 2002-07-06 2002-08-14 Weatherford Lamb Coupling tubulars
GB0215918D0 (en) * 2002-07-10 2002-08-21 Weatherford Lamb Expansion method
US6991040B2 (en) * 2002-07-12 2006-01-31 Weatherford/Lamb, Inc. Method and apparatus for locking out a subsurface safety valve
US7950450B2 (en) * 2002-08-16 2011-05-31 Weatherford/Lamb, Inc. Apparatus and methods of cleaning and refinishing tubulars
US6758275B2 (en) 2002-08-16 2004-07-06 Weatherford/Lamb, Inc. Method of cleaning and refinishing tubulars
US6866100B2 (en) 2002-08-23 2005-03-15 Weatherford/Lamb, Inc. Mechanically opened ball seat and expandable ball seat
US6820687B2 (en) 2002-09-03 2004-11-23 Weatherford/Lamb, Inc. Auto reversing expanding roller system
US20040055786A1 (en) * 2002-09-24 2004-03-25 Weatherford/Lamb, Inc. Positive displacement apparatus for selectively translating expander tool downhole
US6840325B2 (en) 2002-09-26 2005-01-11 Weatherford/Lamb, Inc. Expandable connection for use with a swelling elastomer
US7182141B2 (en) * 2002-10-08 2007-02-27 Weatherford/Lamb, Inc. Expander tool for downhole use
US6997264B2 (en) * 2002-10-10 2006-02-14 Weatherford/Lamb, Inc. Method of jointing and running expandable tubulars
US7011162B2 (en) * 2002-11-14 2006-03-14 Weatherford/Lamb, Inc. Hydraulically activated swivel for running expandable components with tailpipe
US6981547B2 (en) * 2002-12-06 2006-01-03 Weatherford/Lamb, Inc. Wire lock expandable connection
US6834725B2 (en) 2002-12-12 2004-12-28 Weatherford/Lamb, Inc. Reinforced swelling elastomer seal element on expandable tubular
US6843319B2 (en) 2002-12-12 2005-01-18 Weatherford/Lamb, Inc. Expansion assembly for a tubular expander tool, and method of tubular expansion
US6907937B2 (en) 2002-12-23 2005-06-21 Weatherford/Lamb, Inc. Expandable sealing apparatus
US7131504B2 (en) * 2002-12-31 2006-11-07 Weatherford/Lamb, Inc. Pressure activated release member for an expandable drillbit
GB0303152D0 (en) * 2003-02-12 2003-03-19 Weatherford Lamb Seal
US6988557B2 (en) * 2003-05-22 2006-01-24 Weatherford/Lamb, Inc. Self sealing expandable inflatable packers
US6920932B2 (en) 2003-04-07 2005-07-26 Weatherford/Lamb, Inc. Joint for use with expandable tubulars
US7028780B2 (en) * 2003-05-01 2006-04-18 Weatherford/Lamb, Inc. Expandable hanger with compliant slip system
GB0412131D0 (en) * 2004-05-29 2004-06-30 Weatherford Lamb Coupling and seating tubulars in a bore
US7025135B2 (en) * 2003-05-22 2006-04-11 Weatherford/Lamb, Inc. Thread integrity feature for expandable connections
GB0313472D0 (en) * 2003-06-11 2003-07-16 Weatherford Lamb Tubing connector
CA2471051C (en) * 2003-06-16 2007-11-06 Weatherford/Lamb, Inc. Borehole tubing expansion
GB0318181D0 (en) * 2003-08-02 2003-09-03 Weatherford Lamb Seal arrangement
US6910388B2 (en) 2003-08-22 2005-06-28 Weatherford/Lamb, Inc. Flow meter using an expanded tube section and sensitive differential pressure measurement
US7308944B2 (en) * 2003-10-07 2007-12-18 Weatherford/Lamb, Inc. Expander tool for use in a wellbore
US7757774B2 (en) * 2004-10-12 2010-07-20 Weatherford/Lamb, Inc. Method of completing a well

Also Published As

Publication number Publication date
EP1520084B1 (en) 2016-04-13
WO2004005669A1 (en) 2004-01-15
AU2003251160A1 (en) 2004-01-23
NO20041148L (en) 2005-01-27
GB0215659D0 (en) 2002-08-14
CA2461278A1 (en) 2004-01-15
NO334722B1 (en) 2014-05-12
EP1520084A1 (en) 2005-04-06
US7350584B2 (en) 2008-04-01
US20050000697A1 (en) 2005-01-06

Similar Documents

Publication Publication Date Title
CA2461278C (en) Corrugated downhole tubulars
US6745846B1 (en) Expandable downhole tubing
CA2359450C (en) Expandable tubing and method
US7377325B2 (en) Centraliser
US7124821B2 (en) Apparatus and method for expanding a tubular
CA2467899C (en) Thread integrity feature for expandable connections
EP1860277B1 (en) Apparatus and methods to protect connections
US20070035131A1 (en) Expandable tubular connection
US7077197B2 (en) Expandable tubular connection
GB2383058A (en) Expandable bistable device
GB2395214A (en) Bistable tubular
BRPI0107164B1 (en) equipment for use in a wellbore, method for establishing an uncoated section of a wellbore in an underground formation, method for facilitating the use of a wellbore, method for sealing a portion of a tubular wellbore, system to facilitate communication along a wellbore and well line routing method

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180704