GB1021610A - Wall packer assembly - Google Patents
Wall packer assemblyInfo
- Publication number
- GB1021610A GB1021610A GB50173/64A GB5017364A GB1021610A GB 1021610 A GB1021610 A GB 1021610A GB 50173/64 A GB50173/64 A GB 50173/64A GB 5017364 A GB5017364 A GB 5017364A GB 1021610 A GB1021610 A GB 1021610A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- packer
- string
- fluid pressure
- slips
- 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
Links
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
- E21B33/12955—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure using drag blocks frictionally engaging the inner wall of the well
Abstract
1,021,610. Wells &c. CAMCO Inc. Dec. 9, 1964 [Jan. 2, 1964], No. 50173/64. Heading E1F. A well packer comprises a packing collar 21 sleeved on a packer mandrel 12 between upper and lower slips 28, 14, a tubing mandrel 2 on which the mandrel 12 is slidably sleeved, a passage 25 for applying fluid pressure to project a latch 40 on the mandrel 2 into a keeper formation 33 on the mandrel 12, and mating surfaces 31, 31A on the mandrels for closing the passage to apply the fluid pressure at a limit of relative sliding of the mandrels. The packer is lowered into the well on a tubing string 3 and is set by elevating and rotating the string to bring pins 20 carried by the mandrel 12 into alignment with the vertical leg of J-slots 8 in the mandrel 2, and by lowering the tubing string. The mandrel 12 is held fixed in the well by friction blocks 15 and the string is lowered until mandrel surfaces 38, 32 engage and set the slips 14 and expand the collar, the surfaces 31, 31A also being engaged to cause fluid pressure from the annulus beneath the expanded collar to project the latch and set the slips 28. The packer is released by upward pull on the tubing string with or without reduction of the annulus pressure, the mandrel 12 being lifted by the flared mouths of the vertical limits of the J-slots engaging teeth on a ring 10.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US335170A US3249149A (en) | 1964-01-02 | 1964-01-02 | High pressure well packer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1021610A true GB1021610A (en) | 1966-03-02 |
Family
ID=23310583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50173/64A Expired GB1021610A (en) | 1964-01-02 | 1964-12-09 | Wall packer assembly |
Country Status (2)
Country | Link |
---|---|
US (1) | US3249149A (en) |
GB (1) | GB1021610A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2270331A (en) * | 1992-09-02 | 1994-03-09 | Red Baron | Drill string anchor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3416608A (en) * | 1966-06-27 | 1968-12-17 | Dresser Ind | Retrievable well packer |
US3434538A (en) * | 1966-09-26 | 1969-03-25 | Dresser Ind | Retrievable bridge plug |
US3659647A (en) * | 1970-03-04 | 1972-05-02 | Joe R Brown | Well packer |
US3785436A (en) * | 1972-06-23 | 1974-01-15 | P Davis | Well packer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2409812A (en) * | 1941-12-31 | 1946-10-22 | Guiberson Corp | Control head packer |
US3008523A (en) * | 1958-07-25 | 1961-11-14 | Baker Oil Tools Inc | Retrievable well packer and anchor |
US3112795A (en) * | 1960-11-14 | 1963-12-03 | Baker Oil Tools Inc | Retrievable subsurface well tool |
-
1964
- 1964-01-02 US US335170A patent/US3249149A/en not_active Expired - Lifetime
- 1964-12-09 GB GB50173/64A patent/GB1021610A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2270331A (en) * | 1992-09-02 | 1994-03-09 | Red Baron | Drill string anchor |
GB2270331B (en) * | 1992-09-02 | 1996-03-06 | Red Baron | Drill string anchor |
Also Published As
Publication number | Publication date |
---|---|
US3249149A (en) | 1966-05-03 |
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