Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-05-06
1978-05-02
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
G01V 318
Patent
active
040877400
ABSTRACT:
An electrical well logging apparatus of the spherically focusing type is utilized to determine the diameter of a borehole drilled into a formation or the thickness of the mudcake on the borehole wall.
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patent: 3002148 (1961-09-01), Nall
patent: 3014174 (1961-12-01), Charrin et al.
patent: 3075142 (1963-01-01), Albright et al.
patent: 3136942 (1964-06-01), Schuster
patent: 3462678 (1969-08-01), Eaton
patent: 3579098 (1971-05-01), Mougne
patent: 3697864 (1972-10-01), Runge
patent: 3760260 (1973-09-01), Schuster
Schlumberger Technology Corporation
Strecker Gerard R.
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