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Russian Geology and Geophysics

2009 year, number 11

Electrochemical effects in rocks: petroleum exploration and engineering-geological applications

V.Yu. Shigaev
Saratov State University, 83 ul. Astrakhanskaya, Saratov, 410012, Russia
Keywords: electrolysis; electrochemical effects; oil accumulation, concentrations of metals; stiffness; electrochemical stiffening
Pages: 991-995


The use of electrochemical effects in petroleum exploration and engineering-geological applications is discussed with reference to the Zhirnovsky oil and gas field where mobile forms of metals are 1.5-2 times above the background. Electrochemical stiffening applied to Maastrichtian shales, which are sliding planes of landslides in the Lower Volga area, increased their stiffness by a factor of 2 or more.