Invention Grant
- Patent Title: Matrix drill bits with back raked cutting elements
- Patent Title (中): 带背面切削元件的矩阵钻头
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Application No.: US11687472Application Date: 2007-03-16
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Publication No.: US07946362B2Publication Date: 2011-05-24
- Inventor: Nuno Da Silva , Valérie Sillen , Nicolas Luyckx
- Applicant: Nuno Da Silva , Valérie Sillen , Nicolas Luyckx
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Baker Botts L.L.P.
- Main IPC: E21B10/54
- IPC: E21B10/54

Abstract:
A matrix drill bit and method of manufacturing a matrix bit having back raked cutting elements is disclosed. In one aspect, a matrix drill bit for well drilling includes a matrix bit body that has a front area in a direction of drilling and two or more diamond impregnated cutting blades protruding from the front area of the matrix bit body. The cutting blades each have a front external surface protruding from the front area of the matrix bit body and present a plurality of back raked downhole interface surfaces in the direction of drilling. The downhole interface surfaces span a leading face and a trailing face where the leading face extends to a first height and the trailing face extends to a second height and the first height is greater than the second height.
Public/Granted literature
- US20070215389A1 Matrix Drill Bits With Back Raked Cutting Elements Public/Granted day:2007-09-20
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