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The AAPG/Datapages Combined Publications Database

Journal of Petroleum Geology

Abstract

Journal of Petroleum Geology, Vol.10, No.3, pp. 319-326, 1987

©Copyright 2000 Scientific Press, Ltd.

PALYNOLOGICAL ANALYSES IN THE STUDY OF FLUID MIGRATION IN THE OILFIELDS AND GASFIELDS OF WESTERN SIBERIA

A. M. Medvedeva and L. P. Klimushina*

* Institute of Geology and Exploitation of Combustible Fuels, (IGiRGI), Moscow, USSR.

Abstract

A study of microfossils contained in the hydrocarbon fluids derived from four oil and gas-bearing formations in Western Siberia (of Paleozoic, Jurassic, Neocomian and Albian-- Cenomanian ages) has shown the importance of processes of vertical migration in local hydrocarbon accumulations. These processes were found to be concentrated in regions of geological disturbance or intense fracturing of the reservoir rocks.

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