METHOD FOR SONIC INDICATION OF VOIDS IN CASING CEMENT OF A BOREHOLE,申请号WO2008IB03430-传众专利搜索

发明名称	METHOD FOR SONIC INDICATION OF VOIDS IN CASING CEMENT OF A BOREHOLE
摘要	<p>A method for determining on a real time logging while drilling (LWD) basis the top of cement location 406, 410 between casing 408 transition zones in a borehole using at least one sonic attributes of coherent energy, attenuation and slowness as a function of at least one of depth and time.</p>
申请公布号	WO2009090468(A1)	申请公布日期	2009.07.23
申请号	WO2008IB03430	申请日期	2008.12.11
申请人	SCHLUMBERGER TECHNOLOGY B.V.;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER CANADA LIMITED;SCHLUMBERGER HOLDINGS LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED;WU, PETER, T.;DUMONT, ALAIN;CAMPANAC, PIERRE, H.;JOHNSON, DAVID	发明人	WU, PETER, T.;DUMONT, ALAIN;CAMPANAC, PIERRE, H.;JOHNSON, DAVID
分类号	E21B47/00;G01V1/50	主分类号	E21B47/00
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