Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Patent
1997-07-03
1999-03-16
Strecker, Gerard
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
324366, 324373, 702 7, G01V 318, G01V 324, G01V 328, G01V 338
Patent
active
058835156
ABSTRACT:
A method of determining selected parameters of an earth formation surrounding a borehole by first, obtaining at least one induction logging measurement of the selected parameters in a first predetermined volume of the formation surrounding the borehole having known first radial and vertical dimensions, then obtaining at least one galvanic logging measurement of the identical selected parameters in a second predetermined volume of the formation surrounding the borehole having known second radial and vertical dimensions that overlap the first radial and vertical dimensions of the first predetermined volume, whereby the overlapping volumes form a representative common volume of the formation, and then combining the induction and galvanic logging measurements using an inversion technique to obtain a measurement of the selected parameters of the earth formation surrounding the borehole in the representative common volume of the formation.
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patent: 4484278 (1984-11-01), Edmundson
Strack Kurt M.
Tabarovsky Leonty A.
Springs Darryl M.
Strecker Gerard
Western Atlas International Inc.
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