发明授权
- 专利标题: Method and apparatus for measuring borehole mud resistivity
- 专利标题(中): 测量井眼泥浆电阻率的方法和装置
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申请号: US13114183申请日: 2011-05-24
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公开(公告)号: US08860415B2公开(公告)日: 2014-10-14
- 发明人: Scott Kennedy , Timothy Johnson , Douglas MacLean
- 申请人: Scott Kennedy , Timothy Johnson , Douglas MacLean
- 申请人地址: GB Yately, Hampshire
- 专利权人: Sondex Wireline Limited
- 当前专利权人: Sondex Wireline Limited
- 当前专利权人地址: GB Yately, Hampshire
- 代理机构: Crowe & Dunlevy
- 主分类号: G01V3/18
- IPC分类号: G01V3/18 ; G01R27/22
摘要:
Apparatuses, methods for manufacturing an apparatus and methods for measuring a fluid resistivity are provided. An apparatus for measuring a fluid resistivity includes a fluid column defining structure, two current injecting electrodes, voltage measurement electrodes, and two additional electrodes. The fluid column defining structure is configured to allow a fluid, whose resistivity is to be measured, to fill a fluid column inside the fluid column defining structure. The two current injecting electrodes are configured to inject a known current into the fluid column. The voltage measurement electrodes are configured to measure a voltage across a measurement column included in the fluid column. The two additional electrodes disposed inside the fluid column defining structure, outside of the positions of the two current injecting electrodes in the longitudinal direction are electrically connected to each other.
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