Electric prospecting of the subsoil with lineal electrodes

Details Electric prospecting of the subsoil with lineal electrodes Electric prospecting of the subsoil with lineal electrodes

1978-08-22

1982-03-23

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

Using electrode arrays, circuits, structure, or supports

G01V 302

Patent

active

043215408

ABSTRACT:
The invention concerns electrical prospecting of the subsoil. According to the invention, electrical prospecting is performed with either continuous or alternating current by using a drilling tubing as at leasts one of two lineal exciter electrodes. The profile of apparent resistivity thus obtained gives a very definite indication of the presence of deep anomalies, even those situated under high resistivity layers or masks, which is frequently the case in the search for deposits. Comparing the real resistivity profile with the theoretical curve obtained from a preliminary model, the extent of the deposit can be determined. The invention applies principally to petroleum, mineral or geothermal exploration.

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