Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent
1991-07-24
1993-05-25
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
73155, 166252, 166272, 324325, 324353, G01V 326, E21B 4324, E21B 4710, E21B 4900
Patent
active
052143848
ABSTRACT:
A method for time lapse electric logging in a cased hole in which electrodes are implanted in the casing or the hole is completed with a gravel packed non conductive, perforated liner that allows an open hole logging tool to be used for time-lapse logging. Thereafter, the implemented electrodes or a self-potential (SP) logging tool are used to monitor a steam-flooding EOR method by detecting two-phase flow with time lapse logging. A potential drop between the surface and zones of interest is measured with electrodes installed in a non-conductive casing or the SP logging tool.
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Djabbarah Nizar F.
Sprunt Eve S.
Hager G. W.
Malone C. A.
McKillop A. J.
Mobil Oil Corporation
Strecker Gerard R.
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