Dielectric well logging means and method utilizing the signals f

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

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324 83D, G01V 318, G01V 310, G01R 2500

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active

041307933

ABSTRACT:
Electrical energy is induced into an earth formation by a transmitter in apparatus, adapted to be passed through a borehole traversing the earth formation. Clock pulses are also provided in the apparatus. At least two receivers provide signals corresponding to received electrical energy from the earth formation. A gating circuit provides groups of clock pulses in accordance with the signals from the receivers so that the number of clock pulses in each group corresponds to the dielectric constant of the earth formation.

REFERENCES:
patent: 3096480 (1963-07-01), Pihl
patent: 3551797 (1970-12-01), Gouilloud et al.
patent: 3553579 (1971-01-01), Teixeira
patent: 3562646 (1971-02-01), Maxwell et al.
patent: 3663956 (1972-05-01), Purdy et al.
patent: 3849721 (1974-11-01), Calvert
patent: 4012689 (1977-03-01), Cox et al.

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