Electricity: measuring and testing – Of subsurface core sample
Patent
1991-03-19
1992-03-03
Wieder, Kenneth A.
Electricity: measuring and testing
Of subsurface core sample
73153, G01V 302
Patent
active
050936239
ABSTRACT:
A cylindrical core sample of a subterranean formation is fluid saturated and subjected to a confining pressure. Voltages are measured in a plurality of directions through the core sample which are normal to the cylindrical axis of the core sample at a plurality of spaced-apart positions along such axis and utilized to determine resistivities. These resistivities are compared to identify the radial direction of any electrical anisotropy in the core sample for differing fluid saturation conditions.
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Marinelli et al, "Core Tester Contact Assembly", IBM/TDB, vol. 9, No. 3, Aug. 1966, pp. 296-297.
Givens Wyatt W.
Kennedy W. David
Edmonds Warren S.
Hager Jr. George W.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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