GB1512657A - Packer unit for well blowout preventer - Google Patents
Packer unit for well blowout preventerInfo
- Publication number
- GB1512657A GB1512657A GB26790/75A GB2679075A GB1512657A GB 1512657 A GB1512657 A GB 1512657A GB 26790/75 A GB26790/75 A GB 26790/75A GB 2679075 A GB2679075 A GB 2679075A GB 1512657 A GB1512657 A GB 1512657A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- packer
- webs
- axis
- inserts
- 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
- 239000000463 material Substances 0.000 abstract 6
- 238000006073 displacement reaction Methods 0.000 abstract 2
- JZUFKLXOESDKRF-UHFFFAOYSA-N Chlorothiazide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC2=C1NCNS2(=O)=O JZUFKLXOESDKRF-UHFFFAOYSA-N 0.000 abstract 1
- 239000013536 elastomeric material Substances 0.000 abstract 1
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
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Gasket Seals (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Catching Or Destruction (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
1512657 Wells &c. HYDRIL CO 24 June 1975 [26 June 1974] 26790/75 Heading E1F An annulus of elastomeric material 34 in a well blow-out preventer packer unit is differentially anchored about the longitudinal packer axis 40 with the object of reducing the stress levels in the material 34 during its inward displacement towards the axis 40. The material 34 is anchored at longitudinally extending webs 31, 33 of metallic inserts 30, 32 which are generally circularly spaced about the axis 40. Webs 31 may anchor the material closer to the axis 40 than webs 33, as shown, and the inserts 30, 32 may also have end plates 44, 45 and 52, 53, the plates 44, 52 moving closer to the axis 40 on inward displacement of the packer. Plates 44 may have inward side extents 47 formed so that the plates 44 interfit as the packer is closed (Figs. 4, 5 show the packer partly closed). Radial grooves e.g. 70 may be formed in the material 34 beneath the spaces between adjacent plates. However, as the packer is closed the material 34 may be forced into a tapering space formed by the facing sides 48, 49 on adjacent plates being relatively angled. In another embodiment, the plates 45 may be formed with shoulders which, on closing the packer, closely circumferentially overlap radially outwardly facing edges of plates 44. Alternatively, the inserts may be located in two concentric circular paths, each plate, on closing the packer, engaging its adjacent plates and each outer plate circumferentially overlapping two of the inner plates. In further embodiments, the webs of all the inserts are spaced at the same distance from the axis 40 and the inserts all have wedgeshaped plates, but the plates are of differing size in suitable sequence, or the webs are differently offset relative to the radial axial planes bisecting the plates, such that the circular spacing between adjacent pairs of webs varies and more material 34 flows between certain pairs than other pairs as the packer is closed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US483311A US3917293A (en) | 1974-06-26 | 1974-06-26 | Controlled closing pattern packing unit for blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1512657A true GB1512657A (en) | 1978-06-01 |
Family
ID=23919571
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26790/75A Expired GB1512657A (en) | 1974-06-26 | 1975-06-24 | Packer unit for well blowout preventer |
| GB10592/77A Expired GB1512658A (en) | 1974-06-26 | 1975-06-24 | Metallic inserts for use in an annular well blowout preventer packer unit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10592/77A Expired GB1512658A (en) | 1974-06-26 | 1975-06-24 | Metallic inserts for use in an annular well blowout preventer packer unit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3917293A (en) |
| CA (1) | CA1023659A (en) |
| DE (1) | DE2528102C3 (en) |
| FR (1) | FR2276453A1 (en) |
| GB (2) | GB1512657A (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4098516A (en) * | 1977-08-15 | 1978-07-04 | Hydril Company | Blowout preventer packing unit with slanted reinforcing inserts |
| US4461448A (en) * | 1981-06-25 | 1984-07-24 | Hydril Company | Well blowout preventer, and packing element |
| US4452421A (en) * | 1981-06-25 | 1984-06-05 | Hydril Company | Well blowout preventer, and packing element |
| US4447037A (en) * | 1981-06-25 | 1984-05-08 | Hydril Company | Well blowout preventer, and packing element |
| EP0139724B1 (en) * | 1983-04-18 | 1987-07-22 | Hydril Company | Annular packing unit and insert |
| US4657263A (en) * | 1983-04-18 | 1987-04-14 | Hydril Company | Annular packing unit and insert |
| US4605195A (en) * | 1985-05-01 | 1986-08-12 | Hydril Company | Annular blowout preventer packing unit |
| US6367804B1 (en) | 2000-04-14 | 2002-04-09 | Cooper Cameron Corporation | Variable bore ram packer for tapered tubular members in a ram type blowout preventer |
| US20040021269A1 (en) | 2002-08-01 | 2004-02-05 | Cooper Cameron Corporation | Compact insert for variable bore ram packer in a ram type blowout preventer |
| US6955357B2 (en) | 2002-10-07 | 2005-10-18 | Cooper Cameron Corporation | Extended range variable bore ram packer for a ram type blowout preventer |
| US20040079909A1 (en) * | 2002-10-23 | 2004-04-29 | Cooper Cameron Corporation | Side retainer plate for variable bore ram packer for a ram type blowout preventer |
| US6974135B2 (en) * | 2003-07-11 | 2005-12-13 | Varco I/P Inc. | Variable bore ram |
| US7832485B2 (en) | 2007-06-08 | 2010-11-16 | Schlumberger Technology Corporation | Riserless deployment system |
| US8240387B2 (en) * | 2008-11-11 | 2012-08-14 | Wild Well Control, Inc. | Casing annulus tester for diagnostics and testing of a wellbore |
| KR20150092371A (en) | 2011-03-09 | 2015-08-12 | 내셔널 오일웰 바르코 엘.피. | Method and apparatus for sealing a wellbore |
| GB201107459D0 (en) * | 2011-05-05 | 2011-06-15 | Nat Oilwell Varco Uk Ltd | Seal |
| GB201315216D0 (en) * | 2013-08-27 | 2013-10-09 | Enovate Systems Ltd | Improved annular blow out preventer |
| CA2951864C (en) * | 2014-06-11 | 2022-06-28 | Axon Pressure Products, Inc. | Multi-cavity blowout preventer |
| US9938793B2 (en) | 2015-11-24 | 2018-04-10 | Freudenberg Oil & Gas, Llc | Spherical blow out preventer annular seal |
| US10161212B2 (en) * | 2015-11-24 | 2018-12-25 | Cameron International Corporation | Packer assembly with multiple different inserts for blowout preventer |
| GB201602949D0 (en) * | 2016-02-19 | 2016-04-06 | Oil States Ind Uk Ltd | Packer |
| US10301897B2 (en) * | 2016-09-08 | 2019-05-28 | Cameron International Corporation | Blowout preventer systems and methods |
| US11066891B2 (en) * | 2018-08-31 | 2021-07-20 | Nexus Energy Technologies Inc. | Ram block inner seal assembly and seal therefore |
| CN113510902B (en) * | 2021-09-14 | 2021-11-23 | 四川新为橡塑有限公司 | Rotary rubber core and injection mold thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3228703A (en) * | 1962-11-05 | 1966-01-11 | James A Wilson | Line stripper and packing element therefor |
| US3486759A (en) * | 1967-08-25 | 1969-12-30 | Hydril Co | Sealing of underwater equipment |
| US3690682A (en) * | 1970-05-18 | 1972-09-12 | Dresser Ind | High pressure sealing means |
-
1974
- 1974-06-26 US US483311A patent/US3917293A/en not_active Expired - Lifetime
-
1975
- 1975-06-18 CA CA229,609A patent/CA1023659A/en not_active Expired
- 1975-06-18 FR FR7519112A patent/FR2276453A1/en active Granted
- 1975-06-20 DE DE2528102A patent/DE2528102C3/en not_active Expired
- 1975-06-24 GB GB26790/75A patent/GB1512657A/en not_active Expired
- 1975-06-24 GB GB10592/77A patent/GB1512658A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3917293A (en) | 1975-11-04 |
| DE2528102B2 (en) | 1980-01-31 |
| CA1023659A (en) | 1978-01-03 |
| FR2276453B1 (en) | 1982-11-19 |
| DE2528102C3 (en) | 1980-09-25 |
| DE2528102A1 (en) | 1976-01-15 |
| FR2276453A1 (en) | 1976-01-23 |
| GB1512658A (en) | 1978-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950623 |