Invention Grant
- Patent Title: Anchor arm for seismic logging tool
- Patent Title (中): 地震测井工具的锚臂
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Application No.: US11017312Application Date: 2004-12-20
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Publication No.: US07331386B2Publication Date: 2008-02-19
- Inventor: Kazumasa Kanayama , Colin Wilson , William Underhill
- Applicant: Kazumasa Kanayama , Colin Wilson , William Underhill
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Karan Singh; Jaime Castano; Dale Gaudier
- Main IPC: E21B47/00
- IPC: E21B47/00

Abstract:
A borehole seismic acquisition tool configured for release from a stuck position within a borehole having a tool body with at least one sensor package, an anchoring arm, and anchoring arm linkage adapted to connect the anchoring arm to the tool body. The anchoring arm linkage includes a weakpoint mechanism adapted to break in response to a minimum threshold amount of breaking force being applied upon the weakpoint mechanism. The anchoring arm includes a first end adapted for contacting a borehole wall surface and a second end pivotally attached to the anchoring arm linkage. The anchoring arm also includes a movable cam removably secured to the first end via a first connector pin. The cam being at least partially rotatable about the first connector pin and configured and arranged to rotate against the borehole wall by a pulling force at a top portion of the borehole seismic acquisition tool.
Public/Granted literature
- US20060131015A1 Anchor arm for seismic logging tool Public/Granted day:2006-06-22
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