发明名称 |
Determining resistivity of a geological formation using circuitry located within a borehole casing |
摘要 |
Geological formation resistivity is determined. Circuitry is located within the borehole casing that is adjacent to the geological formation. The circuitry can measure one or more voltages across two or more voltage measurement electrodes associated with the borehole casing. The measured voltages are used by a processor to determine the resistivity of the geological formation. A common mode signal can also be reduced using the circuitry.
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申请公布号 |
US6987386(B1) |
申请公布日期 |
2006.01.17 |
申请号 |
US20020286242 |
申请日期 |
2002.11.01 |
申请人 |
WESTERN ATLAS INTERNATIONAL, INC. |
发明人 |
VAIL, III WILLIAM BANNING |
分类号 |
G01V3/02;G01V3/20 |
主分类号 |
G01V3/02 |
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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