Invention Grant
- Patent Title: High directionality galvanic and induction well logging tools with metamaterial focusing
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Application No.: US14767248Application Date: 2014-07-31
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Publication No.: US09964659B2Publication Date: 2018-05-08
- Inventor: Ahmed E. Fouda , Burkay Donderici
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: HALLIBURTON ENERGY SERVICES, INC.
- Current Assignee: HALLIBURTON ENERGY SERVICES, INC.
- Current Assignee Address: US TX Houston
- Agency: Polsinelli PC
- International Application: PCT/US2014/049189 WO 20140731
- International Announcement: WO2016/018381 WO 20160204
- Main IPC: G01V3/10
- IPC: G01V3/10 ; G01V3/18 ; G01V3/30 ; G01V3/28 ; G01V3/20

Abstract:
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.
Public/Granted literature
- US20160266271A1 HIGH DIRECTIONALITY GALVANIC AND INDUCTION WELL LOGGING TOOLS WITH METAMATERIAL FOCUSING Public/Granted day:2016-09-15
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