High frequency induction method for locating the interface betwe

Details High frequency induction method for locating the interface betwe High frequency induction method for locating the interface betwe

1983-02-14

1985-07-16

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

G01V 328

Patent

active

045299382

ABSTRACT:
A method for locating the interface between two formations wherein the two formations have different dielectric constants but may have the same resistivity. The method utilizes a high frequency induction logging tool having at least two receivers positioned equal distances on either side of the transducer. The difference in the phase angle and the logarithm ratio of the amplitudes between the two receiver signals are recorded with respect to depth to locate the interface.

REFERENCES:
patent: 2220070 (1940-11-01), Aiken
patent: 2220788 (1940-11-01), Lohman
patent: 2264318 (1941-12-01), Lee
patent: 3249858 (1966-05-01), Gouilloud
patent: 4278941 (1981-07-01), Freedman
patent: 4427941 (1984-01-01), Riedesel et al.

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