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
EP2561182(A4)
申请公布日期
2016.08.24
申请号
EP20110772539
申请日期
2011.04.19
申请人
BAKER HUGHES INCORPORATED
发明人
TRINH, TU TIEN;SULLIVAN, ERIC;CURRY, DAVID A.;CHENG, XIAOMIN C.;INANC, FEYZI;LIU, YI