发明申请
- 专利标题: HIGH DIRECTIONALITY GALVANIC AND INDUCTION WELL LOGGING TOOLS WITH METAMATERIAL FOCUSING
- 专利标题(中): 高度方向性的电磁感应井下测井工具
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申请号: US14767248申请日: 2014-07-31
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公开(公告)号: US20160266271A1公开(公告)日: 2016-09-15
- 发明人: Ahmed E. FOUDA , Burkay DONDERICI
- 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
- 国际申请: PCT/US2014/049189 WO 20140731
- 主分类号: G01V3/30
- IPC分类号: G01V3/30 ; G01V3/28
摘要:
Metamaterials are used in well logging measurement tools to provide high directionality galvanic and induction tools having metamaterial focusing. Using metamaterial lenses, currents injected by galvanic tools can be focused in both axial and azimuthal directions. In addition, the focus plane can be shifted away from the tool body into a borehole formation, making measurements more sensitive to zones of interest and less sensitive to boreholes and invaded zones. Another metamaterial lens can bend injected currents toward the head of the tool, adding a look-ahead functionality.
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