Patent attributes
Provided are systems and methods for decreasing the cost and improving a suitable well safety valve. A well safety valve, comprising: an outer housing having a central bore extending axially through the outer housing, wherein the outer housing comprises an outer wall having a receptacle formed in the outer wall; an inner sleeve disposed in the central bore of the outer housing, wherein the inner sleeve comprises a lockout feature in an exterior surface of the inner sleeve; a sleeve disposed in the receptacle; a piston disposed in the sleeve, wherein the piston is actuated to travel longitudinally in the sleeve, wherein the inner sleeve is operable to move in response to movement of the piston; and a valve member disposed in the outer housing, wherein the valve member is operable to selectively restrict flow through the well safety valve in response to movement of the inner sleeve.