Invention Grant
- Patent Title: Earth-boring tools including an impact material and methods of drilling through casing
- Patent Title (中): 钻孔工具包括冲击材料和通过套管钻孔的方法
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Application No.: US12499968Application Date: 2009-07-09
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Publication No.: US08479846B2Publication Date: 2013-07-09
- Inventor: Trung Quoc Huynh , Calvin J. Stowe , Andrew D. Ponder , James S. Trahan
- Applicant: Trung Quoc Huynh , Calvin J. Stowe , Andrew D. Ponder , James S. Trahan
- Applicant Address: US ID Boise
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US ID Boise
- Agency: TraskBritt
- Main IPC: E21B10/36
- IPC: E21B10/36

Abstract:
Earth-boring tools comprise a face and a plurality of cutting elements disposed on at least a portion of the face. An impact material is positioned on at least one portion of a body and has a relative exposure equal to or greater than at least some of the cutting elements of the plurality of cutting elements. The impact material comprises a material having a lower abrasion resistance than the body. Methods of making and methods of using such earth-boring tools.
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