FR2176659A1 - - Google Patents
Info
- Publication number
- FR2176659A1 FR2176659A1 FR7244402A FR7244402A FR2176659A1 FR 2176659 A1 FR2176659 A1 FR 2176659A1 FR 7244402 A FR7244402 A FR 7244402A FR 7244402 A FR7244402 A FR 7244402A FR 2176659 A1 FR2176659 A1 FR 2176659A1
- Authority
- FR
- France
- 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
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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/04—Ball valves
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23692972A | 1972-03-22 | 1972-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2176659A1 true FR2176659A1 (en) | 1973-11-02 |
FR2176659B1 FR2176659B1 (en) | 1976-08-20 |
Family
ID=22891583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7244402A Expired FR2176659B1 (en) | 1972-03-22 | 1972-12-13 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5441003B2 (en) |
CA (1) | CA960637A (en) |
DE (1) | DE2313937C3 (en) |
FR (1) | FR2176659B1 (en) |
GB (2) | GB1390050A (en) |
IT (1) | IT986033B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0053983A1 (en) * | 1980-12-09 | 1982-06-16 | Schlumberger Technology Corporation | Composite ball valve seal assembly |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5085371A (en) * | 1973-11-28 | 1975-07-09 | ||
US4062406A (en) * | 1976-10-15 | 1977-12-13 | Baker International Corporation | Valve and lubricator apparatus |
US5050839A (en) * | 1989-02-15 | 1991-09-24 | Otis Engineering Corporation | Valve |
GB0423015D0 (en) * | 2004-10-16 | 2004-11-17 | Enovate Systems Ltd | Improved ball valve |
US7469708B2 (en) * | 2004-12-21 | 2008-12-30 | Fisher Controls International Llc | Universal fluid valve body |
CN107387002B (en) * | 2017-08-31 | 2023-03-24 | 成都西南石大石油工程技术有限公司 | Double-channel plug valve |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3233860A (en) * | 1962-04-16 | 1966-02-08 | Otis Eng Co | Ball valve improvement |
US3249124A (en) * | 1963-06-14 | 1966-05-03 | Schlumberger Well Surv Corp | Borehole apparatus valves |
US3583442A (en) * | 1968-12-23 | 1971-06-08 | Otis Eng Co | Rotary valves |
-
1972
- 1972-12-01 IT IT54420/72A patent/IT986033B/en active
- 1972-12-13 FR FR7244402A patent/FR2176659B1/fr not_active Expired
- 1972-12-14 GB GB2578374A patent/GB1390050A/en not_active Expired
- 1972-12-14 GB GB5773772A patent/GB1390049A/en not_active Expired
- 1972-12-20 JP JP12806072A patent/JPS5441003B2/ja not_active Expired
- 1972-12-22 CA CA159,799A patent/CA960637A/en not_active Expired
-
1973
- 1973-03-21 DE DE2313937A patent/DE2313937C3/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3233860A (en) * | 1962-04-16 | 1966-02-08 | Otis Eng Co | Ball valve improvement |
US3249124A (en) * | 1963-06-14 | 1966-05-03 | Schlumberger Well Surv Corp | Borehole apparatus valves |
US3583442A (en) * | 1968-12-23 | 1971-06-08 | Otis Eng Co | Rotary valves |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0053983A1 (en) * | 1980-12-09 | 1982-06-16 | Schlumberger Technology Corporation | Composite ball valve seal assembly |
Also Published As
Publication number | Publication date |
---|---|
CA960637A (en) | 1975-01-07 |
DE2313937C3 (en) | 1975-10-23 |
JPS4913727A (en) | 1974-02-06 |
IT986033B (en) | 1975-01-10 |
GB1390050A (en) | 1975-04-09 |
DE2313937A1 (en) | 1973-09-27 |
JPS5441003B2 (en) | 1979-12-06 |
FR2176659B1 (en) | 1976-08-20 |
GB1390049A (en) | 1975-04-09 |
DE2313937B2 (en) | 1975-03-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |