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发明名称
DOWNHOLE SIGNAL COMMUNICATION AND MEASUREMENT THROUGH A METAL TUBULAR
摘要
申请公布号
CA2475428(A1)
申请公布日期
2001.11.22
申请号
CA20012475428
申请日期
2001.05.07
申请人
SCHLUMBERGER CANADA LIMITED
发明人
HUNKA, JOHN;CLARK, BRIAN;BONNER, STEPHEN D.;RAMASWAMY, DHANANJAY;COLLINS, ANTHONY L.;FREY, MARK T.;SMITH, DAVID L.
分类号
E21B47/12;E21B17/00;E21B47/01;G01V3/18;(IPC1-7):E21B47/01
主分类号
E21B47/12
代理机构
代理人
主权项
地址
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