发明名称 |
A method of applying a wear--resistant layer to a surface of a downhole component |
摘要 |
<p>A method is disclosed comprising the steps of locating, on a surface of a downhole component, a plurality of thermally stable polycrystalline diamond (TSP) bearing elements (32), and then applying to the surface a settable facing material (34) which bonds to the surface between the bearing elements (32) and embraces the elements (32) to hold them in place. A method in which bearing elements (32) each comprising a body of TSP at least partly surrounded by a layer of less hard material are secured to the surface by welding or brazing part of the surface of each bearing element (32) which comprises said less hard material to said component is also described. <IMAGE></p> |
申请公布号 |
EP1036913(A1) |
申请公布日期 |
2000.09.20 |
申请号 |
EP20000302074 |
申请日期 |
2000.03.15 |
申请人 |
CAMCO INTERNATIONAL (UK) LIMITED |
发明人 |
EVANS, STEPHEN MARTIN;MATTHIAS, TERRY R.;ROBERTS, TOM SCOTT |
分类号 |
E21B10/46;E21B10/56;E21B10/567;(IPC1-7):E21B10/46 |
主分类号 |
E21B10/46 |
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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