- 专利标题: Uniaxial anisotropy detection apparatus, systems, and methods
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申请号: US15533623申请日: 2015-03-31
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公开(公告)号: US10386525B2公开(公告)日: 2019-08-20
- 发明人: Luis Emilio San Martin , Baris Guner
- 申请人: Halliburton Energy Services, Inc.
- 申请人地址: US TX Houston
- 专利权人: Halliburton Energy Services, Inc.
- 当前专利权人: Halliburton Energy Services, Inc.
- 当前专利权人地址: US TX Houston
- 代理机构: Gilliam IP PLLC
- 国际申请: PCT/US2015/023578 WO 20150331
- 国际公布: WO2016/159976 WO 20161006
- 主分类号: G01V3/00
- IPC分类号: G01V3/00 ; G01V3/20 ; E21B47/00 ; E21B47/024 ; E21B49/00 ; E21B17/10 ; E21B17/16 ; E21B47/18
摘要:
Disclosed embodiments include various borehole imaging tools and methods to provide sensing surface configurations for improving the assessment of anisotropy in layered formations. In at least some embodiments, the borehole imaging tools employ a unitary conductive body to provide a wall-contacting face with grooves that define multiple elongated sensing surfaces. This wall-contacting face can be provided on an extendable sensor pad of a wireline logging tool or embedded on the outer surface of a LWD stabilizer fin. Toroids may be seated in the grooves around each elongated sensing surface for measuring the current flow through each sensing surface. The elongated sensing surfaces can be arranged in pairs as a series of rectangular-shaped grooves that are aligned perpendicularly to each other within each of the pairs to improve detection of anisotropy in thin layered formations and improve the sensitivity to dipping in anisotropic formations.