METHOD AND APPARATUS FOR EVALUATING A CEMENTED BOREHOLE CASING
摘要
A method of evaluating a cased borehole in an earth formation includes: emitting at least one acoustic signal into the borehole via an acoustic source and detecting a return acoustic signal via an acoustic sensor, the borehole including a casing and a casing support material disposed between the casing and a borehole wall; emitting a neutron flux via a neutron source into the borehole and detecting a radiation signal via a radiation detector, the radiation signal including induced gamma radiation resulting from neutron interactions; and identifying a casing support material characteristic based on the return acoustic signal and the radiation signal
申请公布号
WO2011127156(A2)
申请公布日期
2011.10.13
申请号
WO2011US31403
申请日期
2011.04.06
申请人
BAKER HUGHES INCORPORATED;CHACE, DAVID M;ANSARI, RAFAY Z.;FROST, ELTON, JR.