Tubing retrievable surface controlled subsurface safety valve

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

E - Fixed Constructions

21

B

166/44

E21B 43/12 (2006.01) E21B 34/10 (2006.01) E21B 34/00 (2006.01)

Patent

CA 1109782

TUBING RETRIEVABLE SURFACE CONTROLLED SUBSURFACE SAFETY VALVE Abstract of the Disclosure Disclosed is a tubing retrievable surface controlled subsurface safety valve having provisions for blocking communi- cation 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 inven- tion in any way.

331025

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