Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1972-09-29
1976-08-17
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 6, 340 155TA, G01V 300, G01V 1100
Patent
active
039756742
ABSTRACT:
A method of geothermal exploration in which the arrival times of reflected seismic waves and voltage differences caused by subsurface current flow are detected and processed to provide useful estimates of subsurface porosity, pore-fluid resistivity and equivalent salinity as functions of position.
REFERENCES:
patent: 2054067 (1936-09-01), Blau et al.
patent: 2713147 (1955-07-01), Stripling
patent: 3166708 (1965-01-01), Millican
patent: 3180141 (1965-04-01), Alger
patent: 3621380 (1971-11-01), Barlow
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