CA2720489A1 - Hydraulically set liner hanger - Google Patents
Hydraulically set liner hanger Download PDFInfo
- Publication number
- CA2720489A1 CA2720489A1 CA2720489A CA2720489A CA2720489A1 CA 2720489 A1 CA2720489 A1 CA 2720489A1 CA 2720489 A CA2720489 A CA 2720489A CA 2720489 A CA2720489 A CA 2720489A CA 2720489 A1 CA2720489 A1 CA 2720489A1
- Authority
- CA
- Canada
- Prior art keywords
- mandrel
- slip
- housing
- liner hanger
- collet
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract 16
- 238000003780 insertion Methods 0.000 claims 8
- 230000037431 insertion Effects 0.000 claims 8
- 230000000452 restraining effect Effects 0.000 claims 3
- 238000005452 bending Methods 0.000 claims 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
Landscapes
- 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)
- Earth Drilling (AREA)
- Clamps And Clips (AREA)
- Actuator (AREA)
Abstract
A liner hanger, in either a non-rotating or rotating format, has a large hanging capacity due to a one or more axially spaced sets of circumferentially spaced slips housed in openings in a slip housing, the slip housing being moveable axially relative to a mandrel for actuating the slips over cams supported by the mandrel. One or more sets of sets of slips are spaced axially along the slip housing. An annular space is formed between the mandrel and slip housing for maximizing fluid bypass through the annular space. Bypass is further improved by profiling the slip housing. In the rotating version, a separate sleeve is positioned between the mandrel and the slip housing for supporting the cams and the mandrel is supported on the cam sleeve through an upper bearing which permits the mandrel to rotate on the cam sleeve when the slips are set.
Claims (39)
1. A liner hanger for use in hanging a liner inside an existing casing in a wellbore, the liner hanger comprising:
a tubular mandrel having a slip housing mounted thereon and defining an annular space therebetween, the slip housing being axially moveable upon the mandrel and having an inlet and an outlet for permitting the flow of fluids through the annular space;
one or more sets of circumferentially spaced slips, each slip being housed in a slip opening in the slip housing, each of the one or more sets of slips being spaced axially along the slip housing, cam surfaces supported by and extending radially outward from the mandrel and corresponding with each slip;
a spring for biasing each slip to a radially stowed position towards the mandrel; and an actuator attached to the mandrel for axially moving the slip housing and engaging the slips with the cam surfaces for causing the slips to move from the radially stowed position to a radially extended position for engaging the existing casing.
a tubular mandrel having a slip housing mounted thereon and defining an annular space therebetween, the slip housing being axially moveable upon the mandrel and having an inlet and an outlet for permitting the flow of fluids through the annular space;
one or more sets of circumferentially spaced slips, each slip being housed in a slip opening in the slip housing, each of the one or more sets of slips being spaced axially along the slip housing, cam surfaces supported by and extending radially outward from the mandrel and corresponding with each slip;
a spring for biasing each slip to a radially stowed position towards the mandrel; and an actuator attached to the mandrel for axially moving the slip housing and engaging the slips with the cam surfaces for causing the slips to move from the radially stowed position to a radially extended position for engaging the existing casing.
2. The liner hanger as described in claim 1 wherein the slip housing is profiled so as to enlarge the annular space and thereby increase fluid flow bypass.
3. The liner hanger as described in claim 1 wherein the spring is connecting between the slip housing and each slip.
4. The liner hanger as described in claim 1 wherein the spring is a flat spring secured to each slip and extending either side of the slip opening for connecting between the slip housing and each slip.
5. The liner hanger as described in claim 1 wherein the cam faces are integral with the mandrel
6. The liner hanger as described in claim 1 wherein the actuator is a hydraulic portion comprising:
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween; and a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel.
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween; and a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel.
7. The liner hanger as described in claim 1 further comprising a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
8. The liner hanger as described in claim 1 further comprising a collet system between the mandrel and the slip housing for temporarily retaining the slip housing in a downhole non-actuated position during insertion of the liner hanger into the wellbore.
9. The liner hanger as described in claim 8 wherein the collet system comprises:
a collet connected to the slip housing and normally engaged in a corresponding profile on the mandrel;
a collet housing adapted to the slip housing and forming an annular space between the collet and the collet housing;
a collet retainer positioned in the annular space in a downhole position for retaining the collet in the profile in the mandrel and axially moveable therein to an uphole position for releasing the collet from the profile in the mandrel; and a shear screw between the collet retainer and the collet housing for temporarily restraining the collet retainer in the downhole position.
a collet connected to the slip housing and normally engaged in a corresponding profile on the mandrel;
a collet housing adapted to the slip housing and forming an annular space between the collet and the collet housing;
a collet retainer positioned in the annular space in a downhole position for retaining the collet in the profile in the mandrel and axially moveable therein to an uphole position for releasing the collet from the profile in the mandrel; and a shear screw between the collet retainer and the collet housing for temporarily restraining the collet retainer in the downhole position.
10. The liner hanger as described in claim 9 wherein the collet retainer further comprises a profiled inner surface for alignment with the collet when the collet retainer is moved axially uphole and accepting the collet when released radially from the profile in the mandrel
11. The liner hanger as described in claim 1 further comprising mechanical supports formed on either side of the opening in the slip housing at a downhole end of the slips for further supporting the slips in the extended position.
12. The liner hanger as described in claim 11 wherein the supports are tabs having slits formed in the housing above and below each tab, at an interface between the tab and the slip housing to ensure bending of the tab under stress
13. The liner hanger as described in claim 1 wherein the slip housing further comprises a plurality of additional openings therethrough to improve fluid bypass.
14. The liner hanger as described in claim 1 further comprising:
a cam sleeve positioned between the mandrel and the slip housing and defining the annular space between the cam sleeve and slip housing, the cam surfaces extending radially outward from the cam sleeve; and an upper bearing for supporting the mandrel on the cam sleeve while permitting the mandrel to rotate relative to the cam sleeve and slip housing when the slips engage the casing.
a cam sleeve positioned between the mandrel and the slip housing and defining the annular space between the cam sleeve and slip housing, the cam surfaces extending radially outward from the cam sleeve; and an upper bearing for supporting the mandrel on the cam sleeve while permitting the mandrel to rotate relative to the cam sleeve and slip housing when the slips engage the casing.
15 The liner hanger as described in claim 14 wherein the slip housing is profiled so as to enlarge the annular space and thereby increase fluid flow bypass.
16. The liner hanger as described in claim 14 wherein the spring is a flat spring secured to each slip and extending either side of the opening for connecting between the slip housing and the slip.
17. The liner hanger as described in claim 14 wherein the actuator is a hydraulic portion comprising:
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween;
a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel; and a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween;
a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel; and a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
18. A liner hanger for use in hanging a liner inside an existing casing in a wellbore, the liner hanger comprising:
a tubular mandrel having a slip housing mounted thereon and defining an annular space therebetween, the slip housing being axially moveable upon the mandrel and having an inlet and an outlet for permitting the flow of fluids through the annular space;
two or more sets of circumferentially spaced slips, each slip being housed in a slip opening in the slip housing, each of the two or more sets of slips being spaced axially along the slip housing, cam surfaces extending radially outward from the mandrel and corresponding with each slip;
a spring for biasing each slip to a radially stowed position towards the mandrel; and an actuator attached to the mandrel for axially moving the slip housing and engaging the slips with the cam surfaces for causing the slips to move from the radially stowed position to a radially extended position for engaging the existing casing.
a tubular mandrel having a slip housing mounted thereon and defining an annular space therebetween, the slip housing being axially moveable upon the mandrel and having an inlet and an outlet for permitting the flow of fluids through the annular space;
two or more sets of circumferentially spaced slips, each slip being housed in a slip opening in the slip housing, each of the two or more sets of slips being spaced axially along the slip housing, cam surfaces extending radially outward from the mandrel and corresponding with each slip;
a spring for biasing each slip to a radially stowed position towards the mandrel; and an actuator attached to the mandrel for axially moving the slip housing and engaging the slips with the cam surfaces for causing the slips to move from the radially stowed position to a radially extended position for engaging the existing casing.
19. The liner hanger as described in claim 18 wherein the slip housing is profiled so as to enlarge the annular space and thereby increase fluid flow bypass.
20. The liner hanger as described in claim 18 wherein the spring is a flat spring secured to each slip and extending either side of the opening for connecting between the slip housing and the slip.
21. The liner hanger as described in claim 18 wherein the actuator is a hydraulic portion comprising:
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween;
a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel; and a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween;
a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel; and a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
22. The liner hanger as described in claim 18 further comprising a collet system for temporarily retaining the slip housing in a downhole non-actuated position during insertion of the liner hanger into the wellbore, wherein the collet system comprises:
a collet connected to the slip housing and normally engaged in a corresponding profile on the mandrel;
a collet housing adapted to the slip housing and forming an annular space between the collet and the collet housing;
a collet retainer positioned in the annular space in a downhole position for retaining the collet in the profile in the mandrel and axially moveable therein to an uphole position for releasing the collet from the profile in the mandrel; and a shear screw between the collet retainer and the collet housing for temporarily restraining the collet retainer in the downhole position.
a collet connected to the slip housing and normally engaged in a corresponding profile on the mandrel;
a collet housing adapted to the slip housing and forming an annular space between the collet and the collet housing;
a collet retainer positioned in the annular space in a downhole position for retaining the collet in the profile in the mandrel and axially moveable therein to an uphole position for releasing the collet from the profile in the mandrel; and a shear screw between the collet retainer and the collet housing for temporarily restraining the collet retainer in the downhole position.
23. The liner hanger as described in claim 18 further comprising:
a cam sleeve positioned between the mandrel and the slip housing and defining the annular space between the cam sleeve and slip housing, the cam surfaces extending radially outward from the cam sleeve; and an upper bearing for supporting the mandrel on the cam sleeve while permitting the mandrel to rotate relative to the cam sleeve and slip housing when the slips engage the casing.
a cam sleeve positioned between the mandrel and the slip housing and defining the annular space between the cam sleeve and slip housing, the cam surfaces extending radially outward from the cam sleeve; and an upper bearing for supporting the mandrel on the cam sleeve while permitting the mandrel to rotate relative to the cam sleeve and slip housing when the slips engage the casing.
24. The liner hanger as described in claim 23 wherein the slip housing is profiled so as to enlarge the annular space and thereby increase fluid flow bypass.
25. The liner hanger as described in claim 23 wherein the spring is a flat spring secured to each slip and extending either side of the opening for connecting between the slip housing and the slip.
26. The liner hanger as described in claim 23 wherein the actuator is a hydraulic portion comprising:
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween;
a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel; and a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween;
a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel; and a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
27 27. A liner hanger for use in hanging a liner inside an existing casing in a wellbore, the liner hanger comprising:
a tubular mandrel having a slip housing mounted thereon, the slip housing being axially moveable relative to the mandrel;
one or more sets of circumferentially spaced slips, each slip being housed in a slip opening in the slip housing, each of the one or more sets of slips being spaced axially along the slip housing, a cam sleeve positioned between the mandrel and the slip housing and defining an annular space between the cam sleeve and slip housing, the annular space having an inlet and an outlet for permitting the flow of fluids through the annular space, the cam sleeve having cam surfaces extending radially outward for urging the slips on the slip housing to a radially extended position;
an upper bearing for supporting the mandrel on the cam sleeve while permitting the mandrel to rotate relative to the cam sleeve and slip housing when the slips engage the casing; and an actuator acting between the mandrel and the slip housing for axially moving the slip housing and engaging the slips with the cam surfaces for causing the slips to move from a radially stowed position to a radially extended position for engaging the existing casing
a tubular mandrel having a slip housing mounted thereon, the slip housing being axially moveable relative to the mandrel;
one or more sets of circumferentially spaced slips, each slip being housed in a slip opening in the slip housing, each of the one or more sets of slips being spaced axially along the slip housing, a cam sleeve positioned between the mandrel and the slip housing and defining an annular space between the cam sleeve and slip housing, the annular space having an inlet and an outlet for permitting the flow of fluids through the annular space, the cam sleeve having cam surfaces extending radially outward for urging the slips on the slip housing to a radially extended position;
an upper bearing for supporting the mandrel on the cam sleeve while permitting the mandrel to rotate relative to the cam sleeve and slip housing when the slips engage the casing; and an actuator acting between the mandrel and the slip housing for axially moving the slip housing and engaging the slips with the cam surfaces for causing the slips to move from a radially stowed position to a radially extended position for engaging the existing casing
28. The liner hanger as described in claim 27 further comprising a spring for biasing each slip to a radially stowed position towards the mandrel.
29. The liner hanger as described in claim 27 wherein the slip housing is profiled so as to enlarge the annular space therebetween and increase fluid flow bypass.
30. The liner hanger as described in claim 27 wherein the actuator is a hydraulic portion comprising:
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween; and a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel.
a tubular piston housing formed on the mandrel and defining an cylindrical space therebetween; and a piston positioned within the cylindrical space and axially moveable therein, the piston being in fluid communication with a bore of the mandrel for actuating the piston from a non-actuated, downhole position to an uphole actuated position as a result of pressure increases in the bore of the mandrel.
31. The liner hanger as described in claim 27 further comprising a shear screw connected between the mandrel and the slip housing so as to prevent axial movement of the slip housing during insertion of the liner hanger into the wellbore.
32. The liner hanger as described in claim 27 wherein the upper bearing supporting the cam sleeve is a taper bearing.
33. The liner hanger as described in claim 27 further comprising a collet system between the mandrel and slip housing for retaining the slip housing in a downhole non-actuated position during insertion of the liner hanger into the wellbore.
34. The liner hanger as described in claim 33 wherein the collet system comprises:
a collet connected to the slip housing and normally engaged in a corresponding profile on the mandrel;
a collet housing adapted to the slip housing and forming an annular space between the collet and the collet housing;
a collet retainer positioned in the annular space in a downhole position for retaining the collet in the profile in the mandrel and axially moveable therein to an uphole position for releasing the collet from the profile in the mandrel; and a shear screw between the collet retainer and the collet housing for temporarily restraining the collet retainer in the downhole position.
a collet connected to the slip housing and normally engaged in a corresponding profile on the mandrel;
a collet housing adapted to the slip housing and forming an annular space between the collet and the collet housing;
a collet retainer positioned in the annular space in a downhole position for retaining the collet in the profile in the mandrel and axially moveable therein to an uphole position for releasing the collet from the profile in the mandrel; and a shear screw between the collet retainer and the collet housing for temporarily restraining the collet retainer in the downhole position.
35. The liner hanger as described in claim 34 wherein the collet retainer further comprises a profiled inner surface for alignment with the collet when the collet retainer is moved axially uphole and accepting the collet when released radially from the profile in the mandrel.
36. The liner hanger as described in claim 27 further comprising mechanical supports formed on either side of the opening in the slip housing at a downhole end of the slips for further supporting the slips in the extended position.
37. The liner hanger as described in claim 36 wherein the supports are formed as tabs further comprising slits formed in the housing above and below each tab at an interface between the tab and the slip housing to ensure bending of the tab under stress.
38. The liner hanger as described in claim 27 wherein the slip housing further comprises a plurality of additional openings therethrough to improve fluid bypass.
39. The liner hanger as described in claim 27 having two or more sets of circumferentially spaced slips, housed in a plurality of openings in the slip housing, each of the one or more sets of slips being spaced axially along the slip housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2720489A CA2720489C (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2720489A CA2720489C (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
| CA2424719A CA2424719C (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
| US10/404,450 US20040194954A1 (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2424719A Division CA2424719C (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2720489A1 true CA2720489A1 (en) | 2004-10-02 |
| CA2720489C CA2720489C (en) | 2012-08-14 |
Family
ID=33491245
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2424719A Expired - Fee Related CA2424719C (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
| CA2720489A Expired - Fee Related CA2720489C (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2424719A Expired - Fee Related CA2424719C (en) | 2003-04-02 | 2003-04-02 | Hydraulically set liner hanger |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20040194954A1 (en) |
| CA (2) | CA2424719C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090272543A1 (en) * | 2008-05-05 | 2009-11-05 | Frank's Casting Crew And Rental Tools, Inc. | Tubular Running Devices and Methods |
| US8393401B2 (en) | 2009-08-17 | 2013-03-12 | Dril-Quip Inc. | Liner hanger running tool and method |
| US20110198096A1 (en) * | 2010-02-15 | 2011-08-18 | Tejas Research And Engineering, Lp | Unlimited Downhole Fracture Zone System |
| US8881814B2 (en) * | 2011-05-02 | 2014-11-11 | Schlumberger Technology Corporation | Liner cementation process and system |
| CA2847780A1 (en) | 2014-04-01 | 2015-10-01 | Don Turner | Method and apparatus for installing a liner and bridge plug |
| GB201418128D0 (en) * | 2014-10-14 | 2014-11-26 | Weatherford Uk Ltd | Downhole anchor |
| US10184313B2 (en) * | 2015-04-06 | 2019-01-22 | Schlumberger Technology Corporation | Packer assembly with wing projection slips |
| WO2017105807A1 (en) * | 2015-12-14 | 2017-06-22 | Schlumberger Technology Corporation | Hoop stress hydraulic trigger |
| WO2020112641A1 (en) * | 2018-11-26 | 2020-06-04 | Schlumberger Technology Corporation | Closed off liner hanger system and methodology |
| US11480024B2 (en) * | 2021-03-01 | 2022-10-25 | Baker Hughes Oilfield Operations Llc | Packer assembly with slip system |
| CN115030682B (en) * | 2022-06-09 | 2024-01-12 | 德州隆科石油装备有限公司 | Tail pipe hanger provided with expansion type packing device |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3570599A (en) * | 1969-06-11 | 1971-03-16 | Brown Well Service & Supply Co | Liner hanger |
| US3741302A (en) * | 1971-09-08 | 1973-06-26 | Brown Well Service & Supply Co | Liner hanging apparatus |
| US4010804A (en) * | 1975-03-27 | 1977-03-08 | Exxon Production Research Company | Distributed load liner hanger and method of use thereof |
| US5181570A (en) * | 1984-05-10 | 1993-01-26 | Mwl Tool Company | Liner hanger assembly |
| US4603743A (en) * | 1985-02-01 | 1986-08-05 | Mwl Tool & Supply Company | Hydraulic/mechanical setting tool and liner hanger |
| US4921045A (en) * | 1985-12-06 | 1990-05-01 | Baker Oil Tools, Inc. | Slip retention mechanism for subterranean well packer |
| US4712615A (en) * | 1986-07-01 | 1987-12-15 | Lindsey Completion Systems | Liner hanger assembly with setting tool |
| US4825954A (en) * | 1988-02-12 | 1989-05-02 | Baker Hughes Incorporated | Liner hanger with improved bite and method |
| US4862966A (en) * | 1988-05-16 | 1989-09-05 | Lindsey Completion Systems, Inc. | Liner hanger with collapsible ball valve seat |
| US5038860A (en) * | 1989-03-16 | 1991-08-13 | Baker Hughes Incorporated | Hydraulically actuated liner hanger |
| US4926936A (en) * | 1989-07-20 | 1990-05-22 | Texas Iron Works, Inc. | Multiple purpose liner hanger construction |
| US5086845A (en) * | 1990-06-29 | 1992-02-11 | Baker Hughes Incorporated | Liner hanger assembly |
| US5048612A (en) * | 1990-09-10 | 1991-09-17 | Lindsey Completion Systems, Inc. | Double nut setting tool and linger hanger assembly |
| US5318131A (en) * | 1992-04-03 | 1994-06-07 | Baker Samuel F | Hydraulically actuated liner hanger arrangement and method |
| US5433269A (en) * | 1992-05-15 | 1995-07-18 | Halliburton Company | Retrievable packer for high temperature, high pressure service |
| US5333685A (en) * | 1993-05-14 | 1994-08-02 | Bruce Gilbert | Wireline set and tubing retrievable packer |
| US5417288A (en) * | 1994-06-24 | 1995-05-23 | Baker Hughes, Inc. | Hydraulic set liner hanger and method |
| US5564503A (en) * | 1994-08-26 | 1996-10-15 | Halliburton Company | Methods and systems for subterranean multilateral well drilling and completion |
| US5472055A (en) * | 1994-08-30 | 1995-12-05 | Smith International, Inc. | Liner hanger setting tool |
| US5771970A (en) * | 1995-11-08 | 1998-06-30 | Northwest Tech Group Inc. | Tubing tightener |
| US5829531A (en) * | 1996-01-31 | 1998-11-03 | Smith International, Inc. | Mechanical set anchor with slips pocket |
| US5799394A (en) * | 1996-02-05 | 1998-09-01 | Rice; Jose Luis | Method of making a marine speed nozzle |
| US5857524A (en) * | 1997-02-27 | 1999-01-12 | Harris; Monty E. | Liner hanging, sealing and cementing tool |
| US6241017B1 (en) * | 1998-10-19 | 2001-06-05 | Baker Hughes Incorporated | Caged slip system and release methods |
| US6318472B1 (en) * | 1999-05-28 | 2001-11-20 | Halliburton Energy Services, Inc. | Hydraulic set liner hanger setting mechanism and method |
| US6431277B1 (en) * | 1999-09-30 | 2002-08-13 | Baker Hughes Incorporated | Liner hanger |
| US6705404B2 (en) * | 2001-09-10 | 2004-03-16 | Gordon F. Bosley | Open well plunger-actuated gas lift valve and method of use |
-
2003
- 2003-04-02 CA CA2424719A patent/CA2424719C/en not_active Expired - Fee Related
- 2003-04-02 US US10/404,450 patent/US20040194954A1/en not_active Abandoned
- 2003-04-02 CA CA2720489A patent/CA2720489C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20040194954A1 (en) | 2004-10-07 |
| CA2424719C (en) | 2012-01-03 |
| CA2720489C (en) | 2012-08-14 |
| CA2424719A1 (en) | 2004-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210406 |