Induced polarization method and apparatus for distinguishing dis

Details Induced polarization method and apparatus for distinguishing dis Induced polarization method and apparatus for distinguishing dis

1986-09-30

1988-09-06

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

Using electrode arrays, circuits, structure, or supports

324341, 324362, 324376, 324303, 250256, 250269, G01V 1100

Patent

active

047696060

ABSTRACT:
Logging means and methods are disclosed for distinguishing between dispersed and laminated clay in earth formations. A wireline apparatus is employed consisting of a multifrequency induced polarization logging tool operating at extremely low frequencies, combined with other logging tools which measure the total amount of clay in the formation. A determination is then made of the fraction of the total clay content in the formation which is due to laminated clay.

REFERENCES:
patent: 4236113 (1980-11-01), Wiley
patent: 4464930 (1984-08-01), Givens
patent: 4467642 (1984-08-01), Givens
patent: 4644283 (1987-02-01), Vinegar et al.

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