Scholarly record
POST-SIDEMENTAL CHANGES OF BITUMINOUS SANDSTONES: COMPOSITION AND GENESIS OF CEMENTING MATERIAL
Abstract
The object of the study was the Ufimian bituminous sands and sandstones in the east of the East European Platform (Russian Federation). Bituminous sands and sandstones are confined to the Sheshmian horizon (Cisuralian, Ufimian Stage of the General Stratigraphic Scale of Russia). Interest in the study of bituminous rocks is associated with the depletion of traditional oil fields. Initially, bituminous rocks were considered as a source of bitumen for road construction, but in recent years they have been involved in development as an independent object for hydrocarbons. In this connection, the questions of studying the lithological features of reservoir rocks become topical. Sand and sandstones have a fairly uniform composition of detrital material. The clastic material is the products of the destruction of the ancient mountain system of the Urals and characterizing by a large amount of fragments of magmatic minerals and their aggregates. Variations in the mineral composition are related to the nature of the cementing material, which is represented by carbonate and carbonate-clay material with different ratios of calcite and dolomite. The formation of carbonate cement occurs in diagenesis under the influence of oil waters. Tectonic processes during the formation of oil-bitumen deposits led to the displacement of cemented areas from the zone of water-oil contact and formation of lithological heterogeneity in the sand horizon. The patterns of changes in the ratio of calcite to dolomite depend on depth and bitumen saturation. One of the most important issues is the origin of calcium and magnesium. The source of calcium is the underground waters of the red-colored Ufimian deposits, which are characterized by alkaline properties. Calcium precipitation occurred during contact with oil waters that have acidic properties. The origin of dolomite has more complex causes and, apparently, is due to its introduction from carbonate formations with a higher content of dolomite lying on deeper horizons.
Publication Impact Profile
Publication details
References8
Khisamov R.S., Shargorodskiy I.Ye., Gatiyatullin N.S. Neftebitumonosnost permskikh otlozheniy Yuzhno-Tatarskogo svoda i Melekesskoy vpadiny. - Kazan: Fen, 2009. - 431 p.
Muslimov R.Kh., Romanov G.V., Kayukova G.P., et al. Kompleksnoye osvoyeniye tyazhelykh neftey i prirodnykh bitumov permskoy sistemy Respubliki Tatarstan. Kazan, Fen, 2012. 396 p. (In Russian)
Uspenskiy B.V., Valeyeva I.F. Geologiya mestorozhdeniy prirodnykh bitumov Respubliki Tatarstan. Kazan: Izdatelstvo OOO "PF" Gart ", 2008. - 349 p.
Khasanov R.R., Mullakaev A.I., Dusmanov E.N. The structure of sandstones in productive horizons of the Permian bituminous deposits of Tatarstan (Russia). Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki, 2017, vol. 159, no. 1, pp. 164–173. (In Russian)
Mullakaev, A.I, Khasanov, R.R., Galiullin, B.M. Mineralogy of sandstones and localization of oil matter in productive horizons of high-viscosity oil in permian deposits of the Volga-Ural region (Russia)/ 17th International Multidisciplinary Scientific GeoConference SGEM 2017, SGEM2017 Conference Proceedings, 29 June - 5 July 2017, Vol. 17, Issue 11, 353-358 pp. DOI: 10.5593/sgem2017/11.
Mullakaev A.I, Delev A.N, Usmanov S.A, Sudakov, V.A., Khasanov R.R. Tectonic causes of uneven cementation zones distribution in the bituminous sandstones productive part of the Sheshminsky horizon of the South Tatar arch//Neftyanoe Khozyaystvo - Oil Industry. - 2018. - Vol., Is.2. - P.23-25. DOI: 10.24887/0028-2448-2018-2-23-25
Korolev E.A., Bakhtin A.I., Eskin A.A., Hanipova R.R. Diagenetic changes of sandstone reservoir of Ashalchinskoye bitumen deposit // Neftyanoe Khoxyastvo – Oil Industry. – 2016. - №10. – P.26-28.
Khisamov R.S., Gatiyatullin R.N., Ibragimov R.L. i dr. Gidrogeologicheskiye usloviya mestorozhdeniy tyazhelykh vysokovyazkikh neftey i prirodnykh bitumov. Kazan: Izd-vo «Ikhlas», 2016. – 176 s. (In Russian)
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
