Method and apparatus for enhancing the resolution of an inductio

Details Method and apparatus for enhancing the resolution of an inductio Method and apparatus for enhancing the resolution of an inductio

1987-09-24

1989-04-04

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

G01V 328

Patent

active

048189464

ABSTRACT:
A method and apparatus for enhancing the resolution of an induction logging tool at a desired depth of investigation comprising receiving an induction signal from the formation corresponding to the desired depth of investigation, receiving a second signal from the formation having no zeroes in the spatial frequency domain and filtering and combining the received signals to provide high frequency signal information from the second signal to augment and enhance the first signal. Additional corrections, such as for skin effect and shoulder effect are also made.

REFERENCES:
patent: 4471436 (1984-09-01), Schaefer et al.
patent: 4513376 (1985-04-01), Barber

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