Minimizing the effect of borehole current in tensor...

Details Minimizing the effect of borehole current in tensor... Minimizing the effect of borehole current in tensor...

2004-10-15

2011-10-04

Assouad, Patrick (Department: 2858)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

C324S343000, C702S007000, C703S005000

Reexamination Certificate

active

08030935

ABSTRACT:
Logging tools, methods, and computer programs for use in borehole logging are described. The logging tool includes three or more tensors, each tensor including one or more coils. Each coil is characterized by coil parameters including an axis orientation, a cross-sectional area, a number of turns, and a location. At least one of the coil axes is disposed at an angle to the borehole axis. One or more of the coil parameters are selected to minimize sensitivity to borehole current.

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International Search Report PCT/US05/36470, Sep. 29, 2006.

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