发明名称 Formation evaluation using a bit-based active radiation source and a gamma ray detector
摘要 A drill bit made according to one embodiment includes a source configured to induce radiation into a formation during drilling of a wellbore and a sensor in the drill bit configured to detect radiation from the formation responsive to the radiation induced by the source. The drill bit may further include a circuit configured to process signals received from the sensor to estimate a property of the formation.
申请公布号 US8695728(B2) 申请公布日期 2014.04.15
申请号 US201113088892 申请日期 2011.04.18
申请人 TRINH TU TIEN;SULLIVAN ERIC;CURRY DAVID A.;CHENG XIAOMIN C.;INANC FEYZI;LIU YI;BAKER HUGHES INCORPORATED 发明人 TRINH TU TIEN;SULLIVAN ERIC;CURRY DAVID A.;CHENG XIAOMIN C.;INANC FEYZI;LIU YI
分类号 E21B47/00;G01V5/08 主分类号 E21B47/00
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