ESTIMATION OF GAS RESOURCES IN GAIZE OF THE BEREZOVSKAYA FORMATION IN NORTHERN WEST SIBERIA
S.E. Agalakov and V.A. Starikov*
West Siberian Department of the Institute of Petroleum Geology, Siberian Branch of the RAS,
56 ul. Volodarskogo, Tyumen', 625670, Russia
*Geofisk Enterprise, 173 ul. Respubliki, Tyumen', 625023, Russia
Keywords: Gas, resources, logging, West Siberia
Pages: 484-490
Abstract
We describe the technique and results of gas resources estimation in discovered and predicted gas pools in gaize (silica clay) and siliceous mudstones of the Lower Berezovskaya subformation of Cenomanian age in West Siberia. The estimation technique is based on complex geophysical studies of wells, data on stony material, and results of sampling from the study section in the Komsomol'skoe field. Also, data on the physical properties of gaize and gaize-like clays sampled from stratigraphic wells are analyzed. The results obtained show low coefficients of gas saturation, thus pointing to a low gas potential of gaize.
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