发明名称 Drill bit with a sensor for estimating rate of penetration and apparatus for using same
摘要 In one embodiment, an apparatus includes a drill bit, a tip on a bit body configured to contact a formation when the drill bit is utilized to cut into the formation, and a spring coupled to the tip. The apparatus also includes a sensor coupled to the spring and configured to provide signals corresponding to the displacement of the tip when the tip is in contact with the formation.
申请公布号 US7946357(B2) 申请公布日期 2011.05.24
申请号 US20080193332 申请日期 2008.08.18
申请人 BAKER HUGHES INCORPORATED 发明人 TRINH TU TIEN;SULLIVAN ERIC;PRITCHARD DARYL
分类号 E21B49/00 主分类号 E21B49/00
代理机构 代理人
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