发明名称 |
CASING AND LINER DRILLING BITS, CUTTING ELEMENTS THEREFOR, AND METHODS OF USE |
摘要 |
A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.
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申请公布号 |
WO2005080742(B1) |
申请公布日期 |
2005.10.27 |
申请号 |
WO2005US04106 |
申请日期 |
2005.02.10 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
OLDHAM, JACK, T.;SINOR, L., ALLEN;MCCLAIN, ERIC, E.;LAING, ROBERT, A.;TURNER, EVAN, C.;DYKSTRA, MARK, W.;SULLIVAN, ERIC, C. |
分类号 |
E21B7/20;E21B10/26;E21B10/54;E21B10/55;E21B10/56;E21B10/567;E21B17/07;E21B17/14;(IPC1-7):E21B10/54 |
主分类号 |
E21B7/20 |
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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