Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent
1985-12-31
1988-03-08
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
324115, 324366, 324373, G01V 320
Patent
active
047301627
ABSTRACT:
The stimulus signal for an induced polarization logging system is presented to the formation intermittently, alternately being applied and removed as a square wave of alternating polarity, and the response signal amplification level is time gated with the stimulus signal.
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Vinegar Harold J.
Waxman Monroe H.
Shell Oil Company
Strecker Gerard R.
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