Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Patent
1982-06-23
1985-08-27
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
324341, 324342, G01V 330
Patent
active
045381097
ABSTRACT:
The disclosure is directed to an apparatus and method for subsurface electromagnetic logging in a borehole wherein means are provided to detect transverse magnetic mode components and to either correct for these spurious components in the processing of the received signals or to generate suitable cancelling signals.
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Borst Stephen L.
Novack Martin M.
Schlumberger Technology Corporation
Strecker Gerard R.
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