Invention Grant
- Patent Title: Activated reverse-out valve
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Application No.: US14386350Application Date: 2013-11-01
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Publication No.: US09638002B2Publication Date: 2017-05-02
- Inventor: William Mark Richards
- 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: McDermott Will & Emery LLP
- International Application: PCT/US2013/068047 WO 20131101
- International Announcement: WO2015/065474 WO 20150507
- Main IPC: E21B43/04
- IPC: E21B43/04 ; E21B34/10 ; E21B34/14 ; E21B34/00

Abstract:
A disclosed reverse-out valve includes an upper mandrel, a lower mandrel movable with respect to the upper mandrel, and a reverse activated plug device arranged on the upper mandrel and including a piston arranged within a piston chamber of the upper mandrel and a prop extending longitudinally from the piston, wherein the piston chamber includes a first end and a second end, the reverse activated plug device further including a closure device movable between an open position where the piston is arranged at the first end and the prop holds the closure device open such that a reverse-circulation fluid is able to bypass the reverse activated plug device, and a closed position, where the piston is arranged at the second end and the prop is moved to allow the closure device to close and thereby prevent the reverse-circulation fluid from bypassing the reverse activated plug device.
Public/Granted literature
- US20160237783A1 ACTIVATED REVERSE-OUT VALVE Public/Granted day:2016-08-18
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