Invention Grant
US08230951B2 Earth-boring tools having expandable members and methods of making and using such earth-boring tools
有权
具有可扩展构件的钻孔工具以及制造和使用这种钻孔工具的方法
- Patent Title: Earth-boring tools having expandable members and methods of making and using such earth-boring tools
- Patent Title (中): 具有可扩展构件的钻孔工具以及制造和使用这种钻孔工具的方法
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Application No.: US12570464Application Date: 2009-09-30
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Publication No.: US08230951B2Publication Date: 2012-07-31
- Inventor: Steven R. Radford , Khoi Q. Trinh , Li Li , Mark E. Anderson
- Applicant: Steven R. Radford , Khoi Q. Trinh , Li Li , Mark E. Anderson
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: TraskBritt
- Main IPC: E21B10/32
- IPC: E21B10/32
Abstract:
An expandable apparatus for use in a borehole includes a tubular body having at least one opening extending between a longitudinal bore of the tubular body and an outer surface of the tubular body and at least one member positioned within the at least one opening of the tubular body. The at least one member is configured to move between a retracted position and an extended position. An actuation structure is positioned within the tubular body. The actuation structure is coupled to the at least one member and is configured to move the at least one member from the retracted position to the extended position responsive to a flow rate of drilling fluid passing through the longitudinal bore.
Public/Granted literature
- US20110073376A1 EARTH-BORING TOOLS HAVING EXPANDABLE MEMBERS AND METHODS OF MAKING AND USING SUCH EARTH-BORING TOOLS Public/Granted day:2011-03-31
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