Actuator for wireline blowout preventer

Details Actuator for wireline blowout preventer Actuator for wireline blowout preventer

1978-01-11

1980-07-29

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137556, 251 1A, 251 25, 277 73, E21B 3306, F16K 31363

Patent

active

042146054

ABSTRACT:
Disclosed is an hydraulic actuator for a wireline blowout preventer. The actuator uses well pressure to effect closure of the blowout preventer and hydraulic control fluid to open the blowout preventer.

REFERENCES:
patent: 1854058 (1932-04-01), Otis
patent: 2163178 (1939-06-01), Otis
patent: 2278050 (1942-03-01), Allen et al.
patent: 2282363 (1942-05-01), King
patent: 3028878 (1962-04-01), Natho
patent: 3272222 (1966-09-01), Allen
patent: 3692316 (1972-09-01), Bishop et al.
patent: 3800822 (1974-04-01), Baker
patent: 4076208 (1978-02-01), Olson
"1974-1975 Composite Catalogue of Oil Field Eqt. and Services", published by World Oil, p. 4027.

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