Invention Grant
- Patent Title: Drill bit steering assembly
- Patent Title (中): 钻头转向组件
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Application No.: US12956915Application Date: 2010-11-30
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Publication No.: US08820440B2Publication Date: 2014-09-02
- Inventor: David R. Hall , Scott Dahlgren , Jonathan Marshall
- Applicant: David R. Hall , Scott Dahlgren , Jonathan Marshall
- Agent Philip W. Townsend, III
- Main IPC: E21B7/04
- IPC: E21B7/04 ; E21B7/08

Abstract:
In one aspect of the present invention, a steering assembly for downhole directional drilling comprises an outer bit comprising a bore and an outer cutting area and in inner bit comprising an inner cutting area and connected to a shaft that is disposed within the bore. At least one biasing mechanism is disposed around the shaft. At least one fluid channel is disposed within the outer bit and redirects fluid to the at least one biasing mechanism causing the at least one biasing mechanism to push the shaft and alter an axis of the inner bit with respect to an axis of the outer bit.
Public/Granted literature
- US20120080234A1 Drill Bit Steering Assembly Public/Granted day:2012-04-05
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