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LITHOLOGICAL FACTORS OF FORMATION OF THE VENDIAN TERRIGENIOUS RESERVOIRS IN THE SOUTHERN SIBERIAN PLATFORM

I. Varaksina, E. Khabarov, M. Krotova

First published: 2010DOI pendingView metrics

Abstract

The greatest reserves of hydrocarbons on the territory of the Siberian platform confine to the Vendian terrigenous collectors. The paper is dedicated to the analysis of the lithological factors, influenced the formation of these reservoirs. The void space of the sandstones was examined on the basis of the detailed petrographic and electron microscopic studies. The analysis of dependencies of the filtration-capacity properties and the structural and material characteristics carried out. Established that the sedimentary factors (the composition of the debris, the dimension and degree of sorting of grains) set conditions for primary high porosity, but the postsedimentary changes had played the ultimate role in the formation of the collector. Compaction, regeneration of grains of quartz and anhydrite-dolomite cementation worsened the reservoir properties. Heightened content of the feldspars and fragments of clay rocks impeded the development of the quartz regeneration and, in conjunction with the dissolution of the grains, provided the highest values of filtration-capacity properties.

Publication details

Title
LITHOLOGICAL FACTORS OF FORMATION OF THE VENDIAN TERRIGENIOUS RESERVOIRS IN THE SOUTHERN SIBERIAN PLATFORM
Authors
I. Varaksina, E. Khabarov, M. Krotova
Proceedings
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publisher
SGEM Scientific GeoConference
Year
2010
Pages
83-88
SWS Citekey
Varaksina2010164
ISSN
1314-2704
ISBN
954-91818-1-2
Language
en
Publication type
Conference Paper
Keywords
Siberian platformVendian terrigenous reservoirsfiltration-capacity propertiespostsedimentary changes
References1

  1. N.M. Nedolivko, A.V. Ezhov, T.G. Perevertajlo, E.D. Polumogina Role of disjunctive tectonics in the formation of pore space in reservoirs of YUi stratum in West-Moiseevskaya area of Dvurechenskoye oil field (Tomsk region), Proceedings of the Tomsk Polytechnic University, vol. 308 J65, pp 47-53, 2005.

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