Invention Grant
- Patent Title: Electric safety valve with well pressure activation
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Application No.: US16426306Application Date: 2019-05-30
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Publication No.: US11248441B2Publication Date: 2022-02-15
- Inventor: James Dan Vick, Jr. , Jimmie Robert Williamson , Bruce Edward Scott , Michael Linley Fripp
- 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
- Main IPC: E21B34/08
- IPC: E21B34/08 ; E21B34/14 ; E21B34/06 ; E21B34/16 ; E21B34/10

Abstract:
A safety valve may include: an outer housing comprising a central bore extending axially through the outer housing; a flow tube including: a translating sleeve; and a flow tube main body disposed within the translating sleeve, wherein the flow tube main body has an upper end and a lower end; a piston operable to transmit a force to the translating sleeve; a flapper valve disposed on a distal end of the outer housing; and an electromagnet assembly operable to maintain the safety valve in an open state.
Public/Granted literature
- US20200032616A1 ELECTRIC SAFETY VALVE WITH WELL PRESSURE ACTIVATION Public/Granted day:2020-01-30
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