发明名称 |
HEAVY DUTY MATRIX BIT |
摘要 |
An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a powder and a binder material. The blank includes an internal blank component and a coating coupled around at least a portion of the surface of the internal blank component. The internal blank component includes a top portion and a bottom portion. The internal blank component is substantially cylindrically shaped and defines a channel extending through the top portion and the bottom portion. The coating is a metal in some exemplary embodiments. The coating reduces the migration of the binder material into the blank thereby allowing the control of intermetallic compounds thickness within the bondline. |
申请公布号 |
EP2714305(A2) |
申请公布日期 |
2014.04.09 |
申请号 |
EP20120729198 |
申请日期 |
2012.05.21 |
申请人 |
VAREL EUROPE S.A.S. |
发明人 |
CUILLIER DE MAINDREVILLE, BRUNO;GOMEZ, WILLIAMS |
分类号 |
B22F5/00;B22C9/06;B22D19/06;B22F7/08;C22C29/08;E21B10/55 |
主分类号 |
B22F5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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