Invention Grant
- Patent Title: Safety valve with reversible lockout
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Application No.: US16473892Application Date: 2018-07-30
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Publication No.: US11041363B2Publication Date: 2021-06-22
- Inventor: James Dan Vick, Jr.
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: C. Tumey Law Group PLLC
- Agent Scott Richardson
- International Application: PCT/US2018/044407 WO 20180730
- International Announcement: WO2020/027780 WO 20200206
- Main IPC: E21B34/10
- IPC: E21B34/10 ; E21B34/14 ; F16K1/20

Abstract:
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.
Public/Granted literature
- US20200340330A1 Safety Valve with Reversible Lockout Public/Granted day:2020-10-29
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