Invention Grant
- Patent Title: Reflection coefficient measurement for water-based mud resistivity imaging
- Patent Title (中): 水泥浆电阻率成像的反射系数测量
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Application No.: US11496158Application Date: 2006-07-31
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Publication No.: US07679368B2Publication Date: 2010-03-16
- Inventor: Martin Folberth
- Applicant: Martin Folberth
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Madan & Sriram, P.C.
- Main IPC: G01V3/18
- IPC: G01V3/18 ; G01V3/20 ; G01V3/02
Abstract:
A galvanic resistivity tool with one or more measurement electrodes and guard electrodes, and one or more shielding electrodes. The impedance seen by the measurement electrode (indicative of the formation resistivity) is determined by using a directional coupler that measures a reflection coefficient of an electrical signal.
Public/Granted literature
- US20070029083A1 Reflection coefficient measurement for water-based mud resistivity imaging Public/Granted day:2007-02-08
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