Invention Grant
- Patent Title: Lead the bit rotary steerable system
- Patent Title (中): 引导位旋转导向系统
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Application No.: US12491149Application Date: 2009-06-24
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Publication No.: US08205688B2Publication Date: 2012-06-26
- Inventor: David R. Hall , David Wahlquist
- Applicant: David R. Hall , David Wahlquist
- Agent Philip W. Townsend, III
- Main IPC: E21B7/04
- IPC: E21B7/04
Abstract:
In one aspect of the invention a tool string steerable system has a drill bit body with a working face. An indenter protrudes from the working face and the indenter is rotational fixed to a tool string component above the drill bit body. The indenter is rotationally isolated from the drill bit body.
Public/Granted literature
- US20090255733A1 Lead the Bit Rotary Steerable System Public/Granted day:2009-10-15
Information query
