Determination of horizontal resistivity of formations utilizing

Details Determination of horizontal resistivity of formations utilizing Determination of horizontal resistivity of formations utilizing

1996-06-12

1999-10-12

Snow, Walter E.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

324335, 364422, G01V 318, G01V 140, G01V 338, G01V 328

Patent

active

059660139

ABSTRACT:
A method for determining horizontal resistivity of an anisotropic formation and a formation anisotropy response factor with an induction logging tool is claimed. The method utilizes two differing induction type measurements to determine the horizontal resistivity for the formation without knowledge of a borehole dip angle. The differing induction measurements may be different types of measurements or the same type of measurement made under differing operating conditions. The method further discloses a means for determining the vertical resistivity of an anisotropic formation based on the dip angle, the horizontal resistivity and the formation anisotropy response factor.

REFERENCES:
patent: 3808520 (1974-04-01), Runge
patent: 5329448 (1994-07-01), Rosthal

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