发明名称 |
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.
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申请公布号 |
US2012075953(A1) |
申请公布日期 |
2012.03.29 |
申请号 |
US201113079303 |
申请日期 |
2011.04.04 |
申请人 |
CHACE DAVID M.;ANSARI RAFAY Z.;FROST, JR. ELTON;BAKER HUGHES INCORPORATED |
发明人 |
CHACE DAVID M.;ANSARI RAFAY Z.;FROST, JR. ELTON |
分类号 |
G01V1/50;G01V5/10 |
主分类号 |
G01V1/50 |
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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