Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Martin Folberth0
Date of Patent
March 16, 2010
0Patent Application Number
114961580
Date Filed
July 31, 2006
0Patent Primary Examiner
Patent 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.
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