SEISMO-ELECTRIC PHENOMENA FROM GRANITE CRACK CONTAINING CRUDE OIL

Suprajitno Munadi

Abstract


Seismo-electric phenomena gained more attention from geophysicists over the last decade.
The development of theoretical background and the success of laboratory experiments
as well as limited field applications give a lot of opportunities and hope as a means
for providing exploration and production data. Seismo-electric effect accommodates any
phenomena which links seismic and electrical energy including seismic to electric conversion
as well as electro kinetic in origin.
Experiment has been conducted to prove that free ions can be considered to accumulate
inside a granite crack containing crude oil which in turn can generate stream oscillatory
electric current when a seismic wave hit the fracture. As a result, electric potential can
be detected at the mouth of the fracture which intersects the borehole. The environmental
nature of the mouth which is full of fluid facilitates the detection of high resolution seismoelectric
signal by simple electrodes which is made of metal.


Keywords


seismo-electric, seismic exploration, reservoir characterization, fracture

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DOI: https://doi.org/10.29017/SCOG.30.1.974

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