发明名称 |
[A COMBINED PROPAGATION AND LATERAL RESISTIVITY DOWNHOLE TOOL] |
摘要 |
A combined resistivity tool incorporating both induction/propagation antennas and lateral resistivity antennas disposed in recesses of downhole tubulars, in which a lateral resistivity antenna includes an insulating base layer disposed in the recess; a toroidal antenna disposed over the insulating base layer; and a shield disposed over the recess.
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申请公布号 |
US2005218898(A1) |
申请公布日期 |
2005.10.06 |
申请号 |
US20040708926 |
申请日期 |
2004.04.01 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
FREDETTE MARK A.;HALL JAMES S.;FREY MARK T.;DION DOMINIQUE |
分类号 |
E21B47/00;E21B47/01;E21B47/12;E21B49/00;G01V3/10;G01V3/18;G01V3/20;G01V3/26;G01V3/30;(IPC1-7):G01V3/18 |
主分类号 |
E21B47/00 |
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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