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Geomechanical Modeling Pre-Upper Thrust Belts of Southern UralsNormal access

Authors: L.I. Minligalieva, V.Y. Kerimov, V.A. Kosyanov and R.N. Mustaev
Event name: Geomodel 2019
Session: Региональная сессия. Прикаспийский регион и Урало-Поволжье
Publication date: 17 September 2019
DOI: 10.3997/2214-4609.201950037
Organisations: EAGE
Language: Russian
Info: Extended abstract, PDF ( 613.94Kb )
Price: € 20

The article is devoted to the study of a large structural element of the Western Urals - the reverse-thrust belts of the Pre-Ural marginal deflection. The entire Ural cover-fold region represents a giant allochton on the outskirts of the East European Platform. The study of the geological structure of the Urals and the East European Platform showed that the real picture of dislocations includes faults as a mandatory element. The horizontal forces of compression, directed from the Urals, determined the formation of the thrusts and supports and genetically associated anticlinal structures. All plicative forms are subject to thrusts and reflect the subsequent collapse of layered strata occurring under the conditions of lateral compression. In many wells drilled in the Urals, in the sub-thrust sediments, intense oil and gas shows are noted, indicating a possible accumulation of oil and gas deposits here. The result of intensive deep exploration carried out in the trough was the discovery of a large number of hydrocarbon fields. In the course of the work, paleotectonic reconstructions based on geomechanical modeling, numerical spatial-temporal basin modeling were used, which allowed to reveal the structural evolution of the reverse-thrust belts, time and conditions for the formation of traps.

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