Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-05-06
1976-08-03
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
G01V 318, G01V 306
Patent
active
039731880
ABSTRACT:
An electrical well logging apparatus of the spherical focusing type is suspended in a borehole drilled into an earth formation and is utilized to provide information regarding the thickness of the mudcake formed on the borehole wall.
REFERENCES:
patent: 2965838 (1960-12-01), Kister
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: 3760260 (1973-09-01), Schuster
Attali Georges
Grimaldi Pierre
Schlumberger Limited
Strecker Gerard R.
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