FR2289820A1 - Vannes de securite hydraulique - Google Patents
Vannes de securite hydrauliqueInfo
- Publication number
- FR2289820A1 FR2289820A1 FR7436015A FR7436015A FR2289820A1 FR 2289820 A1 FR2289820 A1 FR 2289820A1 FR 7436015 A FR7436015 A FR 7436015A FR 7436015 A FR7436015 A FR 7436015A FR 2289820 A1 FR2289820 A1 FR 2289820A1
- Authority
- FR
- France
- Prior art keywords
- designed
- safety valve
- outer body
- borings
- deep
- 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.)
- 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
- E21B34/101—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for equalizing fluid pressure above and below the valve
-
- 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
- E21B2200/05—Flapper valves
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO750328B NO144227B (no) | 1974-02-06 | Anordning ved hydraulisk sikkerhetsventil. | |
FR7436015A FR2289820A1 (fr) | 1974-10-28 | 1974-10-28 | Vannes de securite hydraulique |
US05/526,954 US3999574A (en) | 1974-02-06 | 1974-11-25 | Hydraulic safety stop-valve |
NO750328A NO144227C (no) | 1974-02-06 | 1975-02-03 | Anordning ved hydraulisk sikkerhetsventil |
DE2504616A DE2504616C2 (de) | 1974-02-06 | 1975-02-04 | Sicherheitsventil für fördernde Bohrlöcher |
GB489775A GB1476581A (en) | 1974-02-06 | 1975-02-05 | Hydraulic safety valve for a well |
NL7501394A NL176195C (nl) | 1974-02-06 | 1975-02-05 | Hydraulisch bediende veiligheidsafsluiter voor een hoge-druk onderwater gasput. |
CA219,477A CA1024887A (fr) | 1974-02-06 | 1975-02-06 | Vannes de securite hydraulique |
IT1997875A IT1031487B (it) | 1974-02-06 | 1975-02-06 | Valvola di sicurezza idraulica valvola di sicurezza idraulica |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7436015A FR2289820A1 (fr) | 1974-10-28 | 1974-10-28 | Vannes de securite hydraulique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2289820A1 true FR2289820A1 (fr) | 1976-05-28 |
FR2289820B1 FR2289820B1 (fr) | 1980-01-04 |
Family
ID=9144499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7436015A Granted FR2289820A1 (fr) | 1974-02-06 | 1974-10-28 | Vannes de securite hydraulique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2289820A1 (fr) |
-
1974
- 1974-10-28 FR FR7436015A patent/FR2289820A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2289820B1 (fr) | 1980-01-04 |
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