Tubing retrievable surface controlled subsurface safety valve

Details Tubing retrievable surface controlled subsurface safety valve Tubing retrievable surface controlled subsurface safety valve

1978-07-17

1980-05-06

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

251 895, 137 71, 166322, 166323, 166324, F16K 31122, E21B 3300

Patent

active

042013631

ABSTRACT:
Disclosed is a tubing retrievable surface controlled subsurface safety valve having provisions for blocking communication of control fluid to the valve's pressure responsive operator and for locking the valve open in the event of valve failure. This abstract of the disclosure is neither intended to define the scope of the invention which, of course, is measured by the claims nor is it intended to limit the invention in any way.

REFERENCES:
patent: 3696868 (1972-10-01), Taylor, Jr.
patent: 3762471 (1973-10-01), Mott
patent: 3763933 (1973-10-01), Mott
patent: 3799258 (1974-03-01), Tausch
patent: 3856083 (1974-12-01), Mott
patent: 3870102 (1975-03-01), Mott
patent: 3882935 (1975-05-01), Calhoun
patent: 3990511 (1976-11-01), Gazda

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