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THE ROLE OF CLAY FLUID SEALS OF NATURAL BITUMEN DEPOSITS OF THE REPUBLIC OF TATARSTAN UNDER THERMAL METHODS OF IMPACT ON THE ROCK BED

L.M. Sitdikova, V.G. Izotov, A.V. Vakhin

First published: 2017-11-20https://doi.org/10.5593/sgem2017h/15/s06.072View metrics

Abstract

The development of oil deposits in the Republic of Tatarstan is entering a late stage. Deposits of natural bitumen of Cheremshano-Yamashinskaya structural zone, in particular, Ashalchinskoye, Mordovo-Karmalskoye and others, were studied. For their development requires the use of active methods пїЅ method of thermal (steam-thermal) impact. The use of method is limited by the stability conditions of its fluid seals. Fluid seals are the layers of пїЅlingul clayпїЅ пїЅ deposits of the Kazanian stage. They are represented by clay-marly series (mixed-layer complex of mica-smectite type with ratio of layers 80:20, chlorite, quartz, feldspars). Stability of fluid seals is important parameter in thermal methods of impact on the rock bed. The behavior of fluid seals samples in the temperature range from 20пїЅ to 950пїЅC was analyzed. There is a structural rearrangement of clay components, fluid seals lose plastic properties, a network of cracks is formed, which is accompanied by a breakthrough of the coolant, which leads to negative environmental consequences. The development of natural bitumen deposits should take into account the behavior of fluid seals with using thermal methods of development.

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Title
THE ROLE OF CLAY FLUID SEALS OF NATURAL BITUMEN DEPOSITS OF THE REPUBLIC OF TATARSTAN UNDER THERMAL METHODS OF IMPACT ON THE ROCK BED
Authors
L.M. Sitdikova, V.G. Izotov, A.V. Vakhin
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publisher
STEF92 Technology
Year
2017
Pages
567-574
SWS Citekey
Sitdikova20176567574
ISSN
1314-2704
ISBN
978-619-7408-26-3
Language
en
Publication type
Conference Paper
Keywords
depositfluid sealsclay mineralsthermal methods
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