| 发明名称 |
Time-domain induced polarization logging method and apparatus. |
| 摘要 |
<p>The stimulus signal for an induced polarization logging system is presented to the formation intermittently, alternately being applied and removed as a square wave of alternating polarity, and the response signal amplification level is time gated with the stimulus signal. </p> |
| 申请公布号 |
EP0229424(A2) |
申请公布日期 |
1987.07.22 |
| 申请号 |
EP19860202309 |
申请日期 |
1986.12.17 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
VINEGAR, HAROLD J.;WAXMAN, MONROE HERBERT |
| 分类号 |
G01V3/28;G01S13/88;G01V3/20;(IPC1-7):G01V3/20 |
主分类号 |
G01V3/28 |
| 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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