US20110303422A1 - Low impact ball-seat apparatus and method - Google Patents
Low impact ball-seat apparatus and method Download PDFInfo
- Publication number
- US20110303422A1 US20110303422A1 US12/813,860 US81386010A US2011303422A1 US 20110303422 A1 US20110303422 A1 US 20110303422A1 US 81386010 A US81386010 A US 81386010A US 2011303422 A1 US2011303422 A1 US 2011303422A1
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- fluid
- fluid conduit
- ball
- conduit
- receiving element
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- 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.)
- Abandoned
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- 238000000034 method Methods 0.000 title claims description 21
- 239000012530 fluid Substances 0.000 claims abstract description 137
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
- E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
Definitions
- Ball-seat assemblies are used with, for example, hydraulic disconnects, circulating subs and inflatable packers.
- Actuation of a ball-seat assembly generally includes releasing a ball or other plug into a fluid conduit and allowing the ball to drop onto the ball seat and restrict a fluid flow therein.
- the impact between the ball and the ball seat can produce pressure waves, which can cause wear and/or damage to components of the assembly.
- oil and other downhole fluids can be pumped at a rate of up to 80 oil barrels per minute (bbl/min). Such fluid rates can cause the ball to transfer a large amount of momentum onto the ball seat, which can cause fracture or deformation in the ball seat and other components.
- An apparatus for restricting fluid flow includes: a ball receiving element disposed in a first fluid conduit and configured to receive a ball that has been advanced through the first fluid conduit and at least partially restrict a fluid flow in the first fluid conduit; and at least one second fluid conduit in fluid communication with the first fluid conduit at an upstream location relative to the ball receiving element, the at least one second fluid conduit configured to divert a portion of the fluid from the first fluid conduit and reduce an impact between the ball and the ball receiving element.
- FIG. 2 is a partial cross-sectional view of the ball-seat assembly of FIG. 1 including a second fluid conduit;
- FIG. 3 is a flow diagram depicting a method of restricting fluid flow in a conduit.
- Actuation of the ball seat assembly includes releasing the ball into the fluid conduit 14 , for example by dropping the ball 18 into and/or pumping the ball 18 through the fluid conduit 14 from a surface or downhole location.
- the ball 18 falls and/or is advanced by downhole fluid toward the ball seat 16 and is seated on the ball seat 16 to restrict fluid flow through the conduit 14 .
- the tool 10 includes at least one cavity or second conduit, such as a bypass conduit 22 , connected in fluid communication to the fluid conduit 14 and a primary fluid flow 24 at a location above and/or upstream of the ball seat 16 .
- the bypass conduit 22 or other cavity diverts a portion of the primary fluid flow 24 (i.e., a secondary fluid flow 26 ) and may be configured to cause the secondary fluid flow 26 to circumvent the ball seat 16 .
- the secondary fluid flow rate may be controlled via one or more regions of reduced cross-sectional area and/or bends in the bypass conduit 22 .
- the flow impedance can be designed by varying channel diameter, number of bends, series of valves or a combination of these.
- one or more flow control valves 28 are included in fluid communication with the bypass conduit 22 to control the secondary fluid flow rate and/or stop the secondary fluid flow.
- the downhole tool 10 is not limited to that described herein.
- the downhole tool 10 may include any tool, carrier or component that includes a ball seat assembly.
- the carriers described herein, such as a production string and a screen, are not limited to the specific embodiments disclosed herein.
- a “carrier” as described herein means any device, device component, combination of devices, media and/or member that may be used to convey, house, support or otherwise facilitate the use of another device, device component, combination of devices, media and/or member.
- Exemplary non-limiting carriers include borehole strings of the coiled tube type, of the jointed pipe type and any combination or portion thereof.
- Other carrier examples include casing pipes, wirelines, wireline sondes, slickline sondes, drop shots, downhole subs, bottom-hole assemblies, and drill strings.
- the downhole tool 10 is not limited to components configured for downhole use.
- the tool 10 is disposed at a downhole location, via for example a borehole string or wireline.
- the ball-seat assembly is actuated by releasing the ball 18 into the conduit 14 , for example by dropping the ball 18 into the conduit 14 and/or pumping the ball 18 through the conduit 14 .
- the primary fluid flow 24 is used to actuate the ball seat assembly and advance the ball 18 .
- the ball 18 advances through the conduit 14 and impacts the ball seat 16 .
- a portion of the primary fluid flow 24 is diverted as the secondary fluid flow 26 to the bypass conduit 22 to reduce the impact between the ball 18 and the ball seat 16 .
- the magnitude of the impact pressure of the ball 18 onto the ball seat 16 is reduced and can be controlled via partitioning the fluid flow to circumvent the seat.
- a magnitude of the secondary fluid flow 24 can be reduced by a desired amount by changing the diameter of the bypass conduit 22 or otherwise changing the flow area of the bypass conduit.
- Various valves 28 or other fluid flow control mechanism may also be used to control the secondary fluid flow rate.
- the secondary fluid flow 24 returns to the fluid conduit 14 at a location downstream of the ball seat 16 .
- the method 40 includes actuating a moveable component such as the sliding sleeve 20 by the impact.
- fluid is diverted and returned to the main fluid conduit 14 downstream of the ball seat 16 .
- Ball-seat structure loads include both solid-to-solid contact pressure due to ball momentum, and pressure waves including compressive pressure waves (shown as “Pwh” in FIG. 2 ) on the upstream face of the ball seat assembly and tensile waves (shown as “ ⁇ Pwh” in FIG. 2 ) on the downstream face.
- the apparatuses and methods described herein act to reduce fluid flow and ball velocity that reduces the loads.
- damage to the ball seat assembly and other components due to impact and pressure waves can be reduced.
- the reduction in ball-seat load can enable the use of a wider range of construction materials and reduce the complexity of ball-seat design, for example by reducing the need for relatively complex ball seat designs to reduce impact.
- the apparatuses can allow for the ball seat to have a larger inner diameter due to the reduced contact stress.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Check Valves (AREA)
- Fluid-Damping Devices (AREA)
- Catching Or Destruction (AREA)
Abstract
An apparatus for restricting fluid flow includes: a ball receiving element disposed in a first fluid conduit and configured to receive a ball that has been advanced through the first fluid conduit and at least partially restrict a fluid flow in the first fluid conduit; and at least one second fluid conduit in fluid communication with the first fluid conduit at an upstream location relative to the ball receiving element, the at least one second fluid conduit configured to divert a portion of the fluid from the first fluid conduit and reduce an impact between the ball and the ball receiving element.
Description
- In the drilling and completion industry and for example in hydrocarbon exploration and recovery operations, a variety of components and tools are lowered into a borehole for various operations such as production operations, for example. Some downhole tools utilize ball-seat assemblies to act as a valve or actuator. Ball-seat assemblies are used with, for example, hydraulic disconnects, circulating subs and inflatable packers.
- Actuation of a ball-seat assembly generally includes releasing a ball or other plug into a fluid conduit and allowing the ball to drop onto the ball seat and restrict a fluid flow therein. The impact between the ball and the ball seat can produce pressure waves, which can cause wear and/or damage to components of the assembly. For example, in subterranean operations, oil and other downhole fluids can be pumped at a rate of up to 80 oil barrels per minute (bbl/min). Such fluid rates can cause the ball to transfer a large amount of momentum onto the ball seat, which can cause fracture or deformation in the ball seat and other components.
- An apparatus for restricting fluid flow includes: a ball receiving element disposed in a first fluid conduit and configured to receive a ball that has been advanced through the first fluid conduit and at least partially restrict a fluid flow in the first fluid conduit; and at least one second fluid conduit in fluid communication with the first fluid conduit at an upstream location relative to the ball receiving element, the at least one second fluid conduit configured to divert a portion of the fluid from the first fluid conduit and reduce an impact between the ball and the ball receiving element.
- A method of restricting fluid flow includes: releasing a ball into the first fluid conduit, the first fluid conduit having a fluid flow therein; receiving the ball in a ball receiving element disposed at the first fluid conduit and at least partially restricting the fluid flow; and diverting a portion of the fluid from the first fluid conduit at an upstream location relative to the ball receiving element via a second fluid conduit to reduce an impact between the ball and the ball receiving element.
- The following descriptions should not be considered limiting in any way. With reference to the accompanying drawings, like elements are numbered alike:
-
FIG. 1 is a cross-sectional view of an embodiment of a ball-seat assembly; -
FIG. 2 is a partial cross-sectional view of the ball-seat assembly ofFIG. 1 including a second fluid conduit; and -
FIG. 3 is a flow diagram depicting a method of restricting fluid flow in a conduit. - The apparatuses, systems and methods described herein provide for the mitigation of pressure waves and other loads caused by actuation of a ball-seat assembly. A downhole assembly includes a first fluid conduit having a longitudinal component to guide a ball released into the conduit to a receiving element such as a ball seat. A second fluid conduit such as a bypass conduit is provided in fluid communication with the fluid conduit and is configured to divert a portion of the fluid in the fluid conduit. The bypass conduit reduces the fluid velocity in the fluid that carriers the ball to the ball seat during actuation. As a result, the severity of impact between the ball and the ball seat is reduced. This reduction decreases the potential for damage to the downhole assembly and also mitigates pressure waves produced by the impact and reduces damage and/or wear on downhole components such as the ball and the ball seat.
- Referring to
FIG. 1 , adownhole tool 10, such as a ball seat sub, configured to be disposed in aborehole 11, includes ahousing 12 having a longitudinal bore orfluid conduit 14. A ball-seat assembly includes a ball receiving element such as aball seat 16 included in theconduit 14 to retain aball 18 that is released from a releasable support element or releasingmechanism 20 in thehousing 12. In one embodiment, theball 18 is a spherical metal or plastic plug, although “ball” may refer to any type of moveable or droppable plugging element, such as a drop plug, and may take any desired size or shape, such as a cone or cylinder. Actuation of the ball seat assembly includes releasing the ball into thefluid conduit 14, for example by dropping theball 18 into and/or pumping theball 18 through thefluid conduit 14 from a surface or downhole location. Theball 18 falls and/or is advanced by downhole fluid toward theball seat 16 and is seated on theball seat 16 to restrict fluid flow through theconduit 14. - The
ball seat 16 may be an annular component connected to theconduit 14, or any other device or configuration providing a restriction in the diameter or cross-sectional area of theconduit 14 sufficient to prevent theball 18 from passing therethrough. In one embodiment, theball seat 16 is directly disposed on and/or attached to the inner surface of theconduit 14 or is formed from a reduced diameter portion of theconduit 14. In one embodiment, the ball seat is disposed on or is part of a movable component such as a piston or asliding sleeve 20 for use, for example, as an actuator or valve. - The
tool 10 includes at least one cavity or second conduit, such as abypass conduit 22, connected in fluid communication to thefluid conduit 14 and aprimary fluid flow 24 at a location above and/or upstream of theball seat 16. Thebypass conduit 22 or other cavity diverts a portion of the primary fluid flow 24 (i.e., a secondary fluid flow 26) and may be configured to cause thesecondary fluid flow 26 to circumvent theball seat 16. - The bypass conduit(s) 22 is configured to produce a secondary fluid flow rate or velocity that reduces the primary fluid flow rate or velocity around the
ball seat 16 by a selected amount. In one embodiment, the cross-sectional flow area of thebypass conduit 22 is selected to reduce the primary fluid flow rate. In one embodiment, the bypass conduit 22 acts to reduce the primary fluid flow rate, and the resulting impact of theball 18, in an amount that is proportional to ratio of the cross sectional flow area of the fluid conduit 14 (the primary flow channel) to the total cross sectional flow area of the bypass conduit(s) 22. Thebypass conduit 22 or cavity shape, cross-sectional area and/or diameter can be designed so as to generate a known or desired parallel impedance or parallel hydraulic resistance. In addition, the secondary fluid flow rate may be controlled via one or more regions of reduced cross-sectional area and/or bends in thebypass conduit 22. The flow impedance can be designed by varying channel diameter, number of bends, series of valves or a combination of these. In one embodiment, one or moreflow control valves 28 are included in fluid communication with thebypass conduit 22 to control the secondary fluid flow rate and/or stop the secondary fluid flow. - Fluid partitioning into the
bypass conduit 22 or other secondary fluid cavity provides pressure relief in the main fluid conduit flow. The reduced borehole flow pressure is still enough to cause ball-seat actuation but drastically reduces the pressure surge on the ball seat assembly upon impact. This directly reduces the material and/or design failure propensity upon ball impact onto theball seat 16. In one embodiment, thebypass conduit 22 is configured so that the primary fluid flow rate in the ball seat area is reduced to a minimum level required to cause theball 18 to contact theball seat 16 and maintain contact with theball seat 16. - In one embodiment, the
bypass conduit 22 includes aninlet 30 disposed at a location upstream of theball seat 16. In one embodiment, theinlet 30 is located proximate to thesliding sleeve 20 or other moveable component and/or theball seat 16. In one embodiment, thebypass conduit 22 extends to anoutlet 32 into the fluid conduit at a location downstream of theball seat 16. In this way, thebypass conduit 22 may create a fluid communication between the upstream and downstream side of theball seat 16. - In one embodiment, the
ball seat 16 is attached to or otherwise fixedly disposed relative to thesliding sleeve 20 or other moveable component. In this embodiment, theprimary fluid flow 24 is partitioned and only a part of it is used to actuate thesleeve 20. The remainder flow, i.e., thesecondary fluid flow 26, is diverted downstream of theball seat 16, bypassing the ball seat area directly. - The
downhole tool 10 is not limited to that described herein. Thedownhole tool 10 may include any tool, carrier or component that includes a ball seat assembly. The carriers described herein, such as a production string and a screen, are not limited to the specific embodiments disclosed herein. A “carrier” as described herein means any device, device component, combination of devices, media and/or member that may be used to convey, house, support or otherwise facilitate the use of another device, device component, combination of devices, media and/or member. Exemplary non-limiting carriers include borehole strings of the coiled tube type, of the jointed pipe type and any combination or portion thereof. Other carrier examples include casing pipes, wirelines, wireline sondes, slickline sondes, drop shots, downhole subs, bottom-hole assemblies, and drill strings. In addition, thedownhole tool 10 is not limited to components configured for downhole use. -
FIG. 3 illustrates amethod 40 of restricting fluid flow in a component. The method includes, for example, actuating a valve or packer in a downhole assembly. Themethod 40 includes one or more stages 41-43. Although the method is described in conjunction with thetool 10, the method can be utilized in conjunction with any device or system (configured for downhole or surface use) that utilizes a ball-seat assembly. - In the
first stage 41, in one embodiment, thetool 10 is disposed at a downhole location, via for example a borehole string or wireline. In thesecond stage 42, the ball-seat assembly is actuated by releasing theball 18 into theconduit 14, for example by dropping theball 18 into theconduit 14 and/or pumping theball 18 through theconduit 14. Theprimary fluid flow 24 is used to actuate the ball seat assembly and advance theball 18. Theball 18 advances through theconduit 14 and impacts theball seat 16. In thethird stage 43, a portion of theprimary fluid flow 24 is diverted as thesecondary fluid flow 26 to thebypass conduit 22 to reduce the impact between theball 18 and theball seat 16. The magnitude of the impact pressure of theball 18 onto theball seat 16 is reduced and can be controlled via partitioning the fluid flow to circumvent the seat. For example, a magnitude of thesecondary fluid flow 24 can be reduced by a desired amount by changing the diameter of thebypass conduit 22 or otherwise changing the flow area of the bypass conduit.Various valves 28 or other fluid flow control mechanism may also be used to control the secondary fluid flow rate. In one embodiment, thesecondary fluid flow 24 returns to thefluid conduit 14 at a location downstream of theball seat 16. - In one embodiment, the
method 40 includes actuating a moveable component such as the slidingsleeve 20 by the impact. In this embodiment, fluid is diverted and returned to the mainfluid conduit 14 downstream of theball seat 16. - In one embodiment, the
ball seat 16 is fixedly disposed relative to theconduit 14, and fluid is diverted via thebypass conduit 22. In one example, a restricting mechanism such as avalve 28 may be operated or actuated to close off thebypass conduit 22 so that no fluid is introduced downstream after theball 18 is seated on theball seat 16. Actuation of thevalve 28 can be coordinated with release of theball 18, so that thevalve 28 is closed at or near the same time that theball 18 is seated. This may be accomplished by, for example, a processor in operable communication with therelease mechanism 20 and thevalve 28. For example, the processor can determine the time after release, based on the fluid flow rates in the mainfluid conduit 14 and/or thebypass conduit 22, that theball 18 impacts theball seat 16. The processor may then close thevalve 28 at or near the ball impact time so that the ball seat assembly can completely close off theconduit 14. - The systems and methods described herein provide various advantages over existing processing methods and devices. Ball-seat structure loads include both solid-to-solid contact pressure due to ball momentum, and pressure waves including compressive pressure waves (shown as “Pwh” in
FIG. 2 ) on the upstream face of the ball seat assembly and tensile waves (shown as “−Pwh” inFIG. 2 ) on the downstream face. The apparatuses and methods described herein act to reduce fluid flow and ball velocity that reduces the loads. Thus, damage to the ball seat assembly and other components due to impact and pressure waves can be reduced. The reduction in ball-seat load can enable the use of a wider range of construction materials and reduce the complexity of ball-seat design, for example by reducing the need for relatively complex ball seat designs to reduce impact. In addition, the apparatuses can allow for the ball seat to have a larger inner diameter due to the reduced contact stress. - While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications will be appreciated by those skilled in the art to adapt a particular instrument, situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention.
Claims (20)
1. An apparatus for restricting fluid flow, comprising:
a ball receiving element disposed in a first fluid conduit and configured to receive a ball that has been advanced through the first fluid conduit and at least partially restrict a fluid flow in the first conduit; and
at least one second fluid conduit in fluid communication with the first fluid conduit at an upstream location relative to the ball receiving element, the at least one second fluid conduit configured to divert a portion of the fluid from the first fluid conduit and reduce an impact between the ball and the ball receiving element.
2. The apparatus of claim 1 , further comprising a carrier including the fluid conduit and configured to be disposed in a borehole.
3. The apparatus of claim 1 , wherein the upstream location is proximate to the ball receiving element.
4. The apparatus of claim 1 , wherein the diverted portion causes a fluid flow rate in the first fluid conduit to be reduced.
5. The apparatus of claim 1 , wherein the ball receiving element is attached to a moveable component, the moveable component configured to move relative to the first fluid conduit in response to the impact.
6. The apparatus of claim 1 , wherein the moveable component is selected from at least one of a sliding sleeve and a piston.
7. The apparatus of claim 1 , wherein the at least one second fluid conduit is configured to return the diverted portion of the fluid to the fluid conduit at a downstream location relative to the ball receiving element.
8. The apparatus of claim 1 , wherein the second fluid conduit includes at least one mechanism configured to restrict fluid flow within the second fluid conduit.
9. The apparatus of claim 8 , wherein the at least one mechanism includes at least one of a valve, a bend in the second fluid conduit and a restriction in a cross-sectional area of the conduit.
10. The apparatus of claim 1 , further comprising a housing including the fluid conduit therein.
11. The apparatus of claim 10 , wherein the second fluid conduit is formed within a wall of the housing.
12. A method of restricting fluid flow, comprising:
releasing a ball into the first fluid conduit, the first fluid conduit having a fluid flow therein;
receiving the ball in a ball receiving element disposed at the first fluid conduit and at least partially restricting fluid flow; and
diverting a portion of the fluid from the first fluid conduit at an upstream location relative to the ball receiving element via a second fluid conduit to reduce an impact between the ball and the ball receiving element.
13. The method of claim 12 , further comprising disposing a carrier in a borehole, the carrier configured to include the ball receiving element and the first fluid conduit therein.
14. The method of claim 12 , wherein the upstream location is proximate to the ball seat.
15. The method of claim 12 , wherein diverting the portion of the fluid causes a fluid flow rate in the first fluid conduit to be reduced.
16. The method of claim 12 , wherein the ball receiving element is attached to a moveable component, the moveable component configured to move relative to the first fluid conduit in response to the impact.
17. The method of claim 12 , further comprising returning the diverted portion of the fluid to the fluid conduit at a downstream location relative to the ball receiving element.
18. The method of claim 12 , wherein diverting includes controlling a diverted fluid flow rate within the second fluid conduit to control the fluid flow rate in the first conduit between at least the upstream location and the ball receiving element.
19. The method of claim 18 , wherein the diverted fluid flow rate is controlled by at least one of a valve, a bend in the second fluid conduit and a restriction in a cross-sectional area of the second fluid conduit.
20. The method of claim 12 , wherein the second fluid conduit is formed within a wall of a housing that includes the first fluid conduit.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/813,860 US20110303422A1 (en) | 2010-06-11 | 2010-06-11 | Low impact ball-seat apparatus and method |
PCT/US2011/039443 WO2011156372A2 (en) | 2010-06-11 | 2011-06-07 | Low impact ball-seat apparatus and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/813,860 US20110303422A1 (en) | 2010-06-11 | 2010-06-11 | Low impact ball-seat apparatus and method |
Publications (1)
Publication Number | Publication Date |
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US20110303422A1 true US20110303422A1 (en) | 2011-12-15 |
Family
ID=45095297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/813,860 Abandoned US20110303422A1 (en) | 2010-06-11 | 2010-06-11 | Low impact ball-seat apparatus and method |
Country Status (2)
Country | Link |
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US (1) | US20110303422A1 (en) |
WO (1) | WO2011156372A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015017698A1 (en) * | 2013-08-02 | 2015-02-05 | Halliburton Energy Services, Inc. | Clutch apparatus and method for resisting torque |
US20180252066A1 (en) * | 2015-10-02 | 2018-09-06 | Halliburton Energy Services, Inc. | Downhole barrier delivery device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893678A (en) * | 1988-06-08 | 1990-01-16 | Tam International | Multiple-set downhole tool and method |
US5044444A (en) * | 1989-04-28 | 1991-09-03 | Baker Hughes Incorporated | Method and apparatus for chemical treatment of subterranean well bores |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU629609B2 (en) * | 1989-02-22 | 1992-10-08 | Longyear Tm Inc | Wire line core drilling apparatus |
GB0125306D0 (en) * | 2001-10-20 | 2001-12-12 | Sps Afos Group Ltd | Disengagable burr mill |
GB0228645D0 (en) * | 2002-12-09 | 2003-01-15 | Specialised Petroleum Serv Ltd | Downhole tool with actuable barrier |
-
2010
- 2010-06-11 US US12/813,860 patent/US20110303422A1/en not_active Abandoned
-
2011
- 2011-06-07 WO PCT/US2011/039443 patent/WO2011156372A2/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893678A (en) * | 1988-06-08 | 1990-01-16 | Tam International | Multiple-set downhole tool and method |
US5044444A (en) * | 1989-04-28 | 1991-09-03 | Baker Hughes Incorporated | Method and apparatus for chemical treatment of subterranean well bores |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015017698A1 (en) * | 2013-08-02 | 2015-02-05 | Halliburton Energy Services, Inc. | Clutch apparatus and method for resisting torque |
US9394760B2 (en) | 2013-08-02 | 2016-07-19 | Halliburton Energy Services, Inc. | Clutch apparatus and method for resisting torque |
US20180252066A1 (en) * | 2015-10-02 | 2018-09-06 | Halliburton Energy Services, Inc. | Downhole barrier delivery device |
US10544646B2 (en) * | 2015-10-02 | 2020-01-28 | Halliburton Energy Services, Inc. | Downhole barrier delivery device |
Also Published As
Publication number | Publication date |
---|---|
WO2011156372A2 (en) | 2011-12-15 |
WO2011156372A3 (en) | 2012-02-02 |
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Owner name: BAKER HUGHES INCORPORATED, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SONI, MOHAN L.;AGRAWAL, GAURAV;SIGNING DATES FROM 20100621 TO 20100628;REEL/FRAME:024877/0107 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |