JPH046840B2 - - Google Patents
Info
- Publication number
- JPH046840B2 JPH046840B2 JP58208200A JP20820083A JPH046840B2 JP H046840 B2 JPH046840 B2 JP H046840B2 JP 58208200 A JP58208200 A JP 58208200A JP 20820083 A JP20820083 A JP 20820083A JP H046840 B2 JPH046840 B2 JP H046840B2
- Authority
- JP
- Japan
- Prior art keywords
- ram body
- ram
- passage
- seal
- front seal
- 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
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
- E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
- E21B33/062—Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams
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)
- Actuator (AREA)
- Reciprocating Pumps (AREA)
- External Artificial Organs (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43959082A | 1982-11-05 | 1982-11-05 | |
US439590 | 1982-11-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59102077A JPS59102077A (ja) | 1984-06-12 |
JPH046840B2 true JPH046840B2 (enrdf_load_html_response) | 1992-02-07 |
Family
ID=23745326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58208200A Granted JPS59102077A (ja) | 1982-11-05 | 1983-11-05 | ラム型ブロ−アウト防止装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS59102077A (enrdf_load_html_response) |
GB (1) | GB2129850B (enrdf_load_html_response) |
NO (1) | NO834043L (enrdf_load_html_response) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4943031A (en) * | 1989-08-17 | 1990-07-24 | Drexel Oilfield Services, Inc. | Blowout preventer |
GB2275706B (en) * | 1990-02-12 | 1994-11-16 | Terence Robert Morrell | Wireline valves |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036807A (en) * | 1957-10-17 | 1962-05-29 | Cameron Iron Works Inc | Valve apparatus |
JPS4836208A (enrdf_load_html_response) * | 1971-09-13 | 1973-05-28 | ||
US4582293A (en) * | 1982-01-06 | 1986-04-15 | Koomey Blowout Preventers, Inc. | Hydraulically operated valves |
-
1983
- 1983-10-27 GB GB08328679A patent/GB2129850B/en not_active Expired
- 1983-11-04 NO NO834043A patent/NO834043L/no unknown
- 1983-11-05 JP JP58208200A patent/JPS59102077A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2129850A (en) | 1984-05-23 |
NO834043L (no) | 1984-05-07 |
GB2129850B (en) | 1986-01-29 |
GB8328679D0 (en) | 1983-11-30 |
JPS59102077A (ja) | 1984-06-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4252197A (en) | Piston actuated well safety valve | |
US4660646A (en) | Failsafe gas closed safety valve | |
US4273310A (en) | Device for blocking or releasing fluid flow | |
US4373587A (en) | Fluid displacement well safety valve | |
US4621695A (en) | Balance line hydraulically operated well safety valve | |
US4452310A (en) | Metal-to-metal high/low pressure seal | |
CA2194105C (en) | Control system with collection chamber | |
US6296061B1 (en) | Pilot-operated pressure-equalizing mechanism for subsurface valve | |
US4629002A (en) | Equalizing means for a subsurface well safety valve | |
KR100312110B1 (ko) | 압력감지 밸브와 이를 이용한 유압식 충격착암기 | |
JPS6250638B2 (enrdf_load_html_response) | ||
WO2001073325A3 (en) | Gate valve | |
GB2134564A (en) | Deep set piston actuated well safety valve | |
US4495998A (en) | Tubing pressure balanced well safety valve | |
US4397221A (en) | Regenerative valve | |
US4145026A (en) | Valve with self-actuating fluid seal | |
US20020074129A1 (en) | Downhole tool utilizing opposed pistons | |
US4655431A (en) | Ram-type blowout preventer | |
JPS60156119A (ja) | 変調圧力作動パイロツト調圧弁 | |
EP0233750A3 (en) | Bar vent for downhole tool | |
US4273194A (en) | Annular flow control safety valve | |
MXPA06005963A (es) | Ensamble de cilindro maestro doble. | |
JPH046840B2 (enrdf_load_html_response) | ||
JPH0585793B2 (enrdf_load_html_response) | ||
US4428557A (en) | Single line deep depth safety valve |