Invention Grant
- Patent Title: Subterranean tool with shock absorbing shear release
- Patent Title (中): 地下工具具有减震剪力释放
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Application No.: US13330980Application Date: 2011-12-20
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Publication No.: US08794311B2Publication Date: 2014-08-05
- Inventor: Donald P. Lauderdale
- Applicant: Donald P. Lauderdale
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agent Steve Rosenblatt
- Main IPC: E21B23/00
- IPC: E21B23/00

Abstract:
A subterranean tool can be actuated with one or more control lines for a hydraulic release. It can further be actuated with a shear release after a lockout feature for the shear release is defeated. The shear release features a lock that limits relative movement so that a shear member can be defeated but without a release. A dog limits relative movement in a wider groove where dog movement in the groove allows a shock absorbing feature to act to cushion the release as the shear member breaks. The relative movement is reversed to let a retaining ring drop out of the way into a groove that comes into alignment with it. The relative movement is reversed again to pull a sleeve out from under gripping collets that have previously failed to release and the tool releases from that point on the same way as the control line actuated release.
Public/Granted literature
- US20130153203A1 Subterranean Tool with Shock Absorbing Shear Release Public/Granted day:2013-06-20
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