发明名称 |
Apparatus for protecting a magnetic resonance antenna |
摘要 |
The instruments of a pulsed nuclear magnetic resonance device are included in a drill collar for evaluating earth formations. The resulting tool makes NMR measurements through an electrically non-conductive shield while the formation is being drilled.
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申请公布号 |
US6008646(A) |
申请公布日期 |
1999.12.28 |
申请号 |
US19980044728 |
申请日期 |
1998.03.19 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
GRIFFIN, DOUGLAS D.;HALL, JAMES STEPHEN;SEZGINER, ABDURRAHMAN |
分类号 |
G01V3/32;(IPC1-7):G01V3/00 |
主分类号 |
G01V3/32 |
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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