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Upper Cretaceous Siliceous Deposits - Potential Gas Resources Enlargement in Western SiberiaNormal access

Authors: S.E. Agalakov, A.I. Kudamanov, V.A. Marinov, N.V. Nassonova, O.V. Bakuev, O.A. Loznyuk and V.B. Khmelevsky
Event name: Saint Petersburg 2018
Session: Regional Session. Western Siberia
Publication date: 09 April 2018
DOI: 10.3997/2214-4609.201800186
Organisations: EAGE
Language: Russian
Info: Extended abstract, PDF ( 958.09Kb )
Price: € 20

Lithological features of non-traditional siliceous reservoirs of the Nizhneberezovskaja subsuite (Santonian, Campanian) are reviewed. Potential siliceous collector is represented by silicon deposits in varying degrees transformed (flasks, diatomite, tripoli radiolarites) and opoka clays. The best quality and capacity of the collectors are expected in the central and northwestern areas of the lowland, in the northeasterly direction crystallization of the flasks and deterioration of reservoir properties are observed. The most promising for the formation of hydrocarbon accumulations in siliceous reservoirs are regions with underlying gas deposits in the Cenomanian and Turonian as well as zones of anomalous heating and zones of expected generation of oil and gase in the pre-Quaternary time.

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