Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Reexamination Certificate
2011-05-31
2011-05-31
Patidar, Jay M (Department: 2858)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
Reexamination Certificate
active
07952358
ABSTRACT:
Multi-component induction measurements are made using a resistivity logging tool in an anistropic earth formation. The X-signal (quadrature) is insensitive to borehole eccentricity. A subset of the multi-component measurements are inverted to first determine horizontal resistivities. Using the determined horizontal resistivities and another subset of the multi-component measurements, the vertical resistivities are obtained. Results of using the in-phase signals are comparable to those obtained using multifrequency focusing of quadrature signals.
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Pelegri Luis M.
Wang Tsili
Xue Cynthia D.
Baker Hughes Incorporated
Mossman Kumar & Tyler PC
Patidar Jay M
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