发明名称 Steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses
摘要 A steel body rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket. Each of a plurality of cutting elements has a substantially cylindrical body and is at least partially disposed within a cutter pocket. At least a portion of the substantially cylindrical body of each cutting element is directly secured to at least a portion of a substantially arcuate surface of the bit body. At least a portion of a substantially planar surface of each cutting element matingly engages at least a portion of a substantially planar surface of a support element.
申请公布号 US7070011(B2) 申请公布日期 2006.07.04
申请号 US20030715050 申请日期 2003.11.17
申请人 BAKER HUGHES INCORPORATED 发明人 SHERWOOD, JR. WILLIAM H.;BORREMANS L. R.;COSTO, JR. ROBERT J.;DUGGAN JAMES L.
分类号 E21B10/46;E21B10/54;E21B10/55;E21B10/56;E21B10/573 主分类号 E21B10/46
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