Invention Grant
US08245797B2 Cutting structures for casing component drillout and earth-boring drill bits including same
有权
用于套管组件钻头和钻孔钻头的切割结构包括它们
- Patent Title: Cutting structures for casing component drillout and earth-boring drill bits including same
- Patent Title (中): 用于套管组件钻头和钻孔钻头的切割结构包括它们
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Application No.: US12604899Application Date: 2009-10-23
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Publication No.: US08245797B2Publication Date: 2012-08-21
- Inventor: Chad T. Jurica , Scott F. Donald , Adam R. Williams
- Applicant: Chad T. Jurica , Scott F. Donald , Adam R. Williams
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: TraskBritt
- Main IPC: E21B10/43
- IPC: E21B10/43
Abstract:
An earth-boring tool includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type suitable for drilling through at least one elastomeric component of a casing string, as well as a casing shoe and cement. Methods of drilling with an earth-boring tool include engaging and drilling an elastomeric component using at least one abrasive cutting structure.
Public/Granted literature
- US20100187011A1 CUTTING STRUCTURES FOR CASING COMPONENT DRILLOUT AND EARTH-BORING DRILL BITS INCLUDING SAME Public/Granted day:2010-07-29
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