US3920075A - Method for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween - Google Patents
Method for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween Download PDFInfo
- Publication number
- US3920075A US3920075A US440714A US44071474A US3920075A US 3920075 A US3920075 A US 3920075A US 440714 A US440714 A US 440714A US 44071474 A US44071474 A US 44071474A US 3920075 A US3920075 A US 3920075A
- Authority
- US
- United States
- Prior art keywords
- liner
- well
- well bore
- seal
- tubular member
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract 8
- 239000007767 bonding agent Substances 0.000 claims abstract 6
- 238000007599 discharging Methods 0.000 claims 4
- 238000007789 sealing Methods 0.000 claims 2
Images
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0415—Casing heads; Suspending casings or tubings in well heads rotating or floating support for tubing or casing hanger
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Earth Drilling (AREA)
Abstract
A method and apparatus for positioning and bonding a liner in a casing in a well bore wherein a pack off bushing is provided between the liner and the well string on which the liner is lowered into the well bore for discharge of a bonding agent through the well string and around the liner in the well bore. The seal or pack off bushing is constructed and arranged so that it may be retrieved after the positioning and bonding operations are completed along with the well string upon which the liner is initially lowered into the well bore.
Claims (6)
1. A METHOD OF POSITIONING A LINER ON A WELL STRING IN A WELL BORE COMPRISING THE STEPS OF: A. SECURING THE LINER ON THE WELL STRING; B. LOCKING A SEAL BUSHING IN POSITION BETWEEN THE LINER AND THE WELL STRING TO SEAL OFF THEREBETWEEN; C. LOWERING THE WELL STRING AND LINER TO A DESIRED POSITION IN THE WELL BORE; D. ROTATING THE WELL STRING RELATIVE TO THE LINER TO DISENGAGE THE LINER FROM THE WELL STRING:
2. A method of positioning a liner on a well string in a well bore comprising the steps of: a. securing the liner on the well string; b. locking a seal bushing in position between the liner and the well string to seal off therebetween; c. lowering the well string and liner to a desired position in the well bore; d. rotating the well string relative to the liner to disengage the liner from the well string; e. discharing a bonding agent from the well string and into the well bore around the liner; and f. thereafter withdrawing the well string longitudinally of the liner to unlock the seal bushing, and g. retrieving the well string and seal bushing from the well bore.
3. A method of sealing between a liner and well string during bonding operations in a well bore and thereafter retrieving the seal from the well bore comprising the steps of: a. locking a seal bushing in position between the well string and liner to seal off therebetween; b. lowering the well string and liner into the well bore; c. disengaging the well string from the liner by relative rotation therebetween while maintaining the seal locked in position therebetween; d. discharging a bonding agent through the well string and into the well bore around the liner to bond it in the well bore; and e. thereafter moving the well string longitudinally of the liner to unlock the seal bushing and retrieve it along the well string from the well bore.
4. A method of sealing between a liner and well string during bonding operations in a well bore and thereafter retrieving the seal from the well bore comprising the steps of: a. locking a seal bushing in position between the well string and liner to seal off therebetween; b. lowering the well string and liner into the well bore; c. disengaging the well string from the liner by relative rotation therebetween while maintaining the seal locked in position therebetween; d. discharging a bonding agent through the well string and into the well bore around the liner to bond it in the well bore; and e. thereafter moving the well string longitudinally of the liner to engage and unlock the seal bushing and retrieve it along with the well string from the well bore.
5. A method of positioning a liner with a hanger thereon in a well bore casing comprising the steps of: a. securing the liner with the hanger thereon on a tubular member whereby the liner and tubular member may be disconnected from each other upon relative rotation therebetween; b. locking a seal bushing in position between the tubular member and liner to seal off therebetween; c. lowering the tubUlar member, liner and hanger thereon in the well bore to a desired position; d. expanding the hanger into locking engagement with the well bore casing to support the liner thereon; e. disengaging the tubular member from the liner by relative rotation therebetween while maintaining the seal locked in position therebetween; f. discharging a bonding agent through the tubular member and into the well bore around the liner; and g. thereafter moving the tubular member longitudinally of the liner to unlock the seal bushing and retrieve it along with the tubular member from the well bore.
6. A method of positioning a liner with a hanger thereon in a well bore casing comprising the steps of: a. securing the liner with the hanger thereon on a tubular member whereby the liner and tubular member may be disconnected from each other upon relative rotation therebetween; b. locking a seal bushing in position between the tubular member and liner to seal off therebetween; c. lowering the tubular member, liner and hanger thereon in the well bore to a desired position; d. expanding the hanger into locking engagement with the well bore casing to support the liner thereon; e. disengaging the tubular member from the liner by relative rotation therebetween while maintaining the seal locked in position therebetween; f. discharging a bonding agent through the tubular member and into the well bore around the liner; and g. thereafter moving the tubular member longitudinally of the liner to engage and unlock the seal bushing and retrieve it along with the tubular member from the well bore.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440714A US3920075A (en) | 1974-02-08 | 1974-02-08 | Method for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween |
US05/555,691 US4281711A (en) | 1974-02-08 | 1975-03-05 | Apparatus for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440714A US3920075A (en) | 1974-02-08 | 1974-02-08 | Method for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/555,691 Division US4281711A (en) | 1974-02-08 | 1975-03-05 | Apparatus for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween |
Publications (2)
Publication Number | Publication Date |
---|---|
US3920075A true US3920075A (en) | 1975-11-18 |
US3920075B1 US3920075B1 (en) | 1985-02-19 |
Family
ID=23749880
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US440714A Expired - Lifetime US3920075A (en) | 1974-02-08 | 1974-02-08 | Method for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween |
US05/555,691 Expired - Lifetime US4281711A (en) | 1974-02-08 | 1975-03-05 | Apparatus for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/555,691 Expired - Lifetime US4281711A (en) | 1974-02-08 | 1975-03-05 | Apparatus for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween |
Country Status (1)
Country | Link |
---|---|
US (2) | US3920075A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030546A (en) * | 1975-07-28 | 1977-06-21 | Brown Oil Tools, Inc. | Swivel assembly |
US4039025A (en) * | 1974-10-09 | 1977-08-02 | Exxon Production Research Company | Apparatus for anchoring an offshore structure |
US4187906A (en) * | 1978-05-08 | 1980-02-12 | Baker International Corporation | Well bore apparatus with annulus pressure releasable tubing seal unit |
US4190107A (en) * | 1978-08-25 | 1980-02-26 | Baker International Corporation | Well bore apparatus with hydraulically releasable tubing seal unit |
US4364432A (en) * | 1980-09-15 | 1982-12-21 | Hughes Tool Company | Seal assembly |
US4372393A (en) * | 1981-06-16 | 1983-02-08 | Baker International Corporation | Casing bore receptacle |
US4375240A (en) * | 1980-12-08 | 1983-03-01 | Hughes Tool Company | Well packer |
US4391325A (en) * | 1980-10-27 | 1983-07-05 | Texas Iron Works, Inc. | Liner and hydraulic liner hanger setting arrangement |
US4406324A (en) * | 1981-05-28 | 1983-09-27 | Hughes Tool Company | Bottom lock pipe seal assembly |
US4440233A (en) * | 1982-07-06 | 1984-04-03 | Hughes Tool Company | Setting tool |
US4441560A (en) * | 1983-05-13 | 1984-04-10 | Hughes Tool Company | Setting tool |
USRE31881E (en) * | 1980-01-07 | 1985-05-14 | Mwl Tool And Supply Company | Setting tools and liner hanger assembly |
US4655290A (en) * | 1985-12-16 | 1987-04-07 | Hughes Tool Company | Latching production seal assembly |
US4726425A (en) * | 1985-12-16 | 1988-02-23 | Hughes Tool Company | Combination landing unit and seal assembly |
US4834185A (en) * | 1988-01-15 | 1989-05-30 | Texas Iron Works, Inc. | Method and apparatus for manipulating a well bore liner |
US4966236A (en) * | 1987-08-12 | 1990-10-30 | Texas Iron Works, Inc. | Cementing method and arrangement |
US4969517A (en) * | 1989-08-25 | 1990-11-13 | Fmc Corporation | Sub-mudling casing hanger/packoff |
US4993493A (en) * | 1985-05-02 | 1991-02-19 | Texas Iron Works, Inc. | Retrievable landing method and assembly for a well bore |
US5036922A (en) * | 1990-03-30 | 1991-08-06 | Texas Iron Works, Inc. | Single plug arrangement, lock therefor and method of use |
US20030024701A1 (en) * | 2001-08-03 | 2003-02-06 | Smith International, Inc. | Cementing manifold assembly |
US20090159296A1 (en) * | 2007-03-19 | 2009-06-25 | Fay Peter J | Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore |
US20100307767A1 (en) * | 2009-06-03 | 2010-12-09 | Fay Peter J | Coupler retained liner hanger mechanism with moveable cover and methods of setting a hanger inside a wellbore |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513817A (en) * | 1982-10-01 | 1985-04-30 | Baker Oil Tools, Inc. | Casing bore receptacle |
US4479548A (en) * | 1983-03-17 | 1984-10-30 | Hughes Tool Company | Setting tool adapter kit |
US4688642A (en) * | 1984-10-09 | 1987-08-25 | Texas Iron Works, Inc. | Rotatable liner with multiple simultaneously set liner hanger arrangement and method |
US4690220A (en) * | 1985-05-01 | 1987-09-01 | Texas Iron Works, Inc. | Tubular member anchoring arrangement and method |
US4765402A (en) * | 1987-04-22 | 1988-08-23 | Hughes Tool Company | Self-locating seal assembly |
US4846270A (en) * | 1988-04-07 | 1989-07-11 | Otis Engineering Corporation | Trash barrier tool for wells |
US4942925A (en) * | 1989-08-21 | 1990-07-24 | Dresser Industries, Inc. | Liner isolation and well completion system |
US5020597A (en) * | 1990-02-01 | 1991-06-04 | Texas Iron Works, Inc. | Arrangement and method for conducting substance and lock therefor |
US5018579A (en) * | 1990-02-01 | 1991-05-28 | Texas Iron Works, Inc. | Arrangement and method for conducting substance and seal therefor |
US5411099A (en) * | 1993-11-30 | 1995-05-02 | Braddick; Britt O. | Well tool and method |
US5690172A (en) * | 1996-04-24 | 1997-11-25 | Alexander Oil Tools, Inc. | Seal-sub packer and a setting tool therefor |
NO310892B1 (en) * | 1996-09-06 | 2001-09-10 | Alcatel Kabel Norge As | Device for controlled fracture in an elongated object |
AU730038B2 (en) | 1997-02-07 | 2001-02-22 | Weatherford Technology Holdings, Llc | Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof |
US6302203B1 (en) * | 2000-03-17 | 2001-10-16 | Schlumberger Technology Corporation | Apparatus and method for communicating with devices positioned outside a liner in a wellbore |
DK1712731T3 (en) | 2001-05-18 | 2010-01-11 | Dril Quip Inc | Guide suspension, running tools and method |
EP1712732B1 (en) | 2001-05-18 | 2009-07-15 | Dril-Quip, Inc. | Liner hanger, running tool and method |
US6575238B1 (en) * | 2001-05-18 | 2003-06-10 | Dril-Quip, Inc. | Ball and plug dropping head |
US7686090B2 (en) * | 2006-04-27 | 2010-03-30 | Dril-Quip Inc. | Liner hanger tool with re-latchable cementing bushing |
BRPI0718801B1 (en) * | 2006-11-15 | 2018-05-29 | Dril-Quip, Inc. | SETTING TOOL FOR FREE SLEEVE AND METHOD OF LOCKING A SLEEVE |
US9062520B2 (en) * | 2012-03-26 | 2015-06-23 | Schlumberger Technology Corporation | Retrievable cementing bushing system |
RU2509874C1 (en) * | 2013-02-19 | 2014-03-20 | Общество с ограниченной ответственностью "Научно-технический центр "ЗЭРС" (ООО "НТЦ "ЗЭРС") | Installation device of casing string liner in well |
RU2524103C1 (en) * | 2013-02-20 | 2014-07-27 | Общество с ограниченной ответственностью "Научно-технический центр" ЗЭРС" (ООО "НТЦ "ЗЭРС") | Circulation unit for casing liner |
US9650854B2 (en) * | 2013-05-28 | 2017-05-16 | Weatherford Technology Holdings, Llc | Packoff for liner deployment assembly |
US10145201B2 (en) | 2014-04-24 | 2018-12-04 | Schlumberger Technology Corporation | Retrievable cement bushing system and methodology |
US10837245B2 (en) | 2018-06-28 | 2020-11-17 | Saudi Arabian Oil Company | Liner hanger system |
AR119425A1 (en) * | 2019-07-19 | 2021-12-15 | Schlumberger Technology Bv | REMOVABLE ADAPTER FOR SHORT CASING HANGER SYSTEMS |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2291371A (en) * | 1940-08-03 | 1942-07-28 | Security Engineering Co Inc | Method and apparatus for cementing liners in wells |
US2442544A (en) * | 1943-05-24 | 1948-06-01 | Baash Ross Tool Co | Liner hanger |
US2735493A (en) * | 1956-02-21 | munhausen | ||
US3066738A (en) * | 1958-09-08 | 1962-12-04 | Baker Oil Tools Inc | Well packer and setting device therefor |
US3171490A (en) * | 1961-01-03 | 1965-03-02 | Midway Fishing Tool Co | Liner hanger and setting tool therefor |
US3227218A (en) * | 1963-05-20 | 1966-01-04 | Baker Oil Tools Inc | Liner hanging apparatus |
US3279539A (en) * | 1965-02-12 | 1966-10-18 | Richfield Oil Corp | Well casing hanger and method for hanging same |
US3450204A (en) * | 1967-09-06 | 1969-06-17 | Brown Oil Tools | Well casing hanger |
US3468375A (en) * | 1968-02-15 | 1969-09-23 | Midway Fishing Tool Co | Oil well liner hanger |
US3556220A (en) * | 1969-04-01 | 1971-01-19 | Otis Eng Co | Well tools |
US3608634A (en) * | 1970-03-19 | 1971-09-28 | Brown Oil Tools | Hydraulic set liner hanger |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2901045A (en) * | 1953-04-20 | 1959-08-25 | Otis Eng Co | Locking means for well tools |
US2948338A (en) * | 1957-01-25 | 1960-08-09 | Otis Eng Co | Well packer |
US2972381A (en) * | 1957-02-26 | 1961-02-21 | Otis Eng Co | Well packer |
US2980185A (en) * | 1958-07-11 | 1961-04-18 | Camco Inc | Retrievable well tool hanger |
US3291220A (en) * | 1964-04-17 | 1966-12-13 | Cicero C Brown | Hydraulic set liner hanger |
US3335802A (en) * | 1965-01-25 | 1967-08-15 | Baker Oil Tools Inc | Subsurface shifting apparatus |
US3460617A (en) * | 1967-04-05 | 1969-08-12 | Brown Oil Tools | Liner hanger packer |
US3489221A (en) * | 1968-06-17 | 1970-01-13 | Gray Tool Co | Well completion apparatus and method |
US3507329A (en) * | 1968-11-25 | 1970-04-21 | Harold Brown Co | Locating and anchoring device for well tools |
US3863961A (en) * | 1973-12-13 | 1975-02-04 | Macco Oil Tool Company Inc | Latching device |
-
1974
- 1974-02-08 US US440714A patent/US3920075A/en not_active Expired - Lifetime
-
1975
- 1975-03-05 US US05/555,691 patent/US4281711A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735493A (en) * | 1956-02-21 | munhausen | ||
US2291371A (en) * | 1940-08-03 | 1942-07-28 | Security Engineering Co Inc | Method and apparatus for cementing liners in wells |
US2442544A (en) * | 1943-05-24 | 1948-06-01 | Baash Ross Tool Co | Liner hanger |
US3066738A (en) * | 1958-09-08 | 1962-12-04 | Baker Oil Tools Inc | Well packer and setting device therefor |
US3171490A (en) * | 1961-01-03 | 1965-03-02 | Midway Fishing Tool Co | Liner hanger and setting tool therefor |
US3227218A (en) * | 1963-05-20 | 1966-01-04 | Baker Oil Tools Inc | Liner hanging apparatus |
US3279539A (en) * | 1965-02-12 | 1966-10-18 | Richfield Oil Corp | Well casing hanger and method for hanging same |
US3450204A (en) * | 1967-09-06 | 1969-06-17 | Brown Oil Tools | Well casing hanger |
US3468375A (en) * | 1968-02-15 | 1969-09-23 | Midway Fishing Tool Co | Oil well liner hanger |
US3556220A (en) * | 1969-04-01 | 1971-01-19 | Otis Eng Co | Well tools |
US3608634A (en) * | 1970-03-19 | 1971-09-28 | Brown Oil Tools | Hydraulic set liner hanger |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4039025A (en) * | 1974-10-09 | 1977-08-02 | Exxon Production Research Company | Apparatus for anchoring an offshore structure |
US4030546A (en) * | 1975-07-28 | 1977-06-21 | Brown Oil Tools, Inc. | Swivel assembly |
US4187906A (en) * | 1978-05-08 | 1980-02-12 | Baker International Corporation | Well bore apparatus with annulus pressure releasable tubing seal unit |
US4190107A (en) * | 1978-08-25 | 1980-02-26 | Baker International Corporation | Well bore apparatus with hydraulically releasable tubing seal unit |
USRE31881E (en) * | 1980-01-07 | 1985-05-14 | Mwl Tool And Supply Company | Setting tools and liner hanger assembly |
US4364432A (en) * | 1980-09-15 | 1982-12-21 | Hughes Tool Company | Seal assembly |
US4391325A (en) * | 1980-10-27 | 1983-07-05 | Texas Iron Works, Inc. | Liner and hydraulic liner hanger setting arrangement |
US4375240A (en) * | 1980-12-08 | 1983-03-01 | Hughes Tool Company | Well packer |
US4406324A (en) * | 1981-05-28 | 1983-09-27 | Hughes Tool Company | Bottom lock pipe seal assembly |
US4372393A (en) * | 1981-06-16 | 1983-02-08 | Baker International Corporation | Casing bore receptacle |
US4440233A (en) * | 1982-07-06 | 1984-04-03 | Hughes Tool Company | Setting tool |
US4441560A (en) * | 1983-05-13 | 1984-04-10 | Hughes Tool Company | Setting tool |
US4993493A (en) * | 1985-05-02 | 1991-02-19 | Texas Iron Works, Inc. | Retrievable landing method and assembly for a well bore |
US4655290A (en) * | 1985-12-16 | 1987-04-07 | Hughes Tool Company | Latching production seal assembly |
US4726425A (en) * | 1985-12-16 | 1988-02-23 | Hughes Tool Company | Combination landing unit and seal assembly |
US4966236A (en) * | 1987-08-12 | 1990-10-30 | Texas Iron Works, Inc. | Cementing method and arrangement |
US4834185A (en) * | 1988-01-15 | 1989-05-30 | Texas Iron Works, Inc. | Method and apparatus for manipulating a well bore liner |
US4969517A (en) * | 1989-08-25 | 1990-11-13 | Fmc Corporation | Sub-mudling casing hanger/packoff |
US5036922A (en) * | 1990-03-30 | 1991-08-06 | Texas Iron Works, Inc. | Single plug arrangement, lock therefor and method of use |
US20030024701A1 (en) * | 2001-08-03 | 2003-02-06 | Smith International, Inc. | Cementing manifold assembly |
US6904970B2 (en) | 2001-08-03 | 2005-06-14 | Smith International, Inc. | Cementing manifold assembly |
US7066249B2 (en) | 2001-08-03 | 2006-06-27 | Smith International, Inc. | Cementing manifold assembly |
US20090159296A1 (en) * | 2007-03-19 | 2009-06-25 | Fay Peter J | Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore |
US7581595B2 (en) * | 2007-03-19 | 2009-09-01 | Baker Hughes Incorporated | Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore |
US20100307767A1 (en) * | 2009-06-03 | 2010-12-09 | Fay Peter J | Coupler retained liner hanger mechanism with moveable cover and methods of setting a hanger inside a wellbore |
US8002044B2 (en) | 2009-06-03 | 2011-08-23 | Baker Hughes Incorporated | Coupler retained liner hanger mechanism with moveable cover and methods of setting a hanger inside a wellbore |
Also Published As
Publication number | Publication date |
---|---|
US4281711B1 (en) | 1985-02-10 |
US4281711A (en) | 1981-08-04 |
US3920075B1 (en) | 1985-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent suit(s) filed | ||
RR | Request for reexamination filed |
Effective date: 19840302 |
|
B1 | Reexamination certificate first reexamination |