In:
Interexpo GEO-Siberia, Siberian State University of Geosystems and Technologies, Vol. 2, No. 1 ( 2019), p. 25-31
Abstract:
The features of the petrographic composition of the bath-upper Jurassic silt-sand rocks exposed by wells in the South of the West Siberian oil and gas basin are considered. The study is focused on the parameters that had a significant influence on the reservoir properties of rocks: granulometric and mineral-petrographic composition of the clastic part of rocks, cement content, structure and composition. Some conclusions are drawn on the spatial distribution of rocks of different composition within the subisochronous sedimentary complexes. It is assumed that significant variations in their composition are caused by a complex combination of varying degrees of interdependent factors: influence of local and regional sources of clastic material, peculiarities of redistribution of material during its transportation and sedimentation, and post-sedimentation changes. Most variable values of reservoir properties, with a recorded maximum parameters of porosity and permeability are obtained for the rocks of Medium-Upper Oxford complex on Verkhnetarskaya, Dedovskaya, Basinskaya, Veselovskaya, to a lesser extent, Kasmanskaya, Vostochnaya and Tai-Dasskaya drilling sites.
Type of Medium:
Online Resource
ISSN:
2618-981X
Uniform Title:
ПЕТРОГРАФИЧЕСКИЕ ОСОБЕННОСТИ ПОРОД-КОЛЛЕКТОРОВ БАТ-ВЕРХНЕЮРСКИХ ОТЛОЖЕНИЙ ЮГА ЗАПАДНО-СИБИРСКОГО НЕФТЕГАЗОНОСНОГО БАССЕЙНА
DOI:
10.33764/2618-981X-2019-2-1
DOI:
10.33764/2618-981X-2019-2-1-25-31
Language:
Russian
Publisher:
Siberian State University of Geosystems and Technologies
Publication Date:
2019
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