System and method for producing a conductivity log...

Details System and method for producing a conductivity log... System and method for producing a conductivity log...

G - Physics

01

V

G01V 3/18 (2006.01) G01V 3/28 (2006.01) G01V 3/30 (2006.01) G01V 3/38 (2006.01)

Patent

CA 2316596

A system and method for producing a conductivity log, unaffected by shoulder effect and dip, from voltage data developed by a well tool (205) disposed in a borehole. The method involves accessing the voltage data developed by the tool, processing the data, reconstructing two-coil voltage data, and computing differences of the two-coil data, to derive a conductivity profile representative of the formation. A system including a well tool adapted to move through a borehole with an apparatus (210) coupled to the tool. The apparatus adapted with means to access voltage data developed by the receivers disposed on the well tool. The apparatus further adapted with means for boosting the voltage data, means for reconstructing two- coil voltages from the boosted voltage data, means for processing the reconstructed two-coil voltage data, and means for producing a conductivity log from the processed two-coil voltages.

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