Uneven hypsometric water-oil contact position of oil deposits as a consequence of formations lithological heterogeneity

Authors: K.V. Svetlov, T.N. Smagina, L.Kh. Alimchanova (TNNC LLC, RF, Tyumen)

Key words: geological modeling, oil field, deposit, water-oil contact, lithological heterogeneity, lateral heterogeneity, layer-by-layer heterogeneity.

The article reviews the cases of pay zone lithological heterogeneity effecting hypsometric position of oil deposits water-oil contact (WOC): deposits isolation of one formation by local change in lithology, WOC inclination due to lateral heterogeneity, formation of uneven WOC due to layer-by-layer heterogeneity.
References
1. Metodicheskie rekomendatsii po podschetu zapasov nefti i gaza
ob"emnym metodom (Guidelines on the calculation of oil and gas reserves
by volumetric method): edited by Petersil'e V.I., Poroskun V.I., Yatsenko G.G., Moscow – Tver', 2003.
2. Svetlov K.V., Smagina T. N., Alimchanova L.Kh., Impact of neotectonic
movements on position of fluid contact of the Western Siberia oil deposits
(In Russ.), Neftyanoe khozyaystvo – Oil Industry, 2014, no. 11, pp. 17–19.
3. Svetlov K.V., Methodological techniques of rationale the position of conditional surface OWC for geological modeling of complex oil deposits (In Russ.), Collected papers “Puti realizatsii neftegazovogo potentsiala KhMAO” (Ways of implementation of oil and gas potential of KhMAO), Proceedings of VI Scientific and Practical Conference, Khanty-Mansiysk, 2007, pp. 308–317. 

Key words: geological modeling, oil field, deposit, water-oil contact, lithological heterogeneity, lateral heterogeneity, layer-by-layer heterogeneity.

The article reviews the cases of pay zone lithological heterogeneity effecting hypsometric position of oil deposits water-oil contact (WOC): deposits isolation of one formation by local change in lithology, WOC inclination due to lateral heterogeneity, formation of uneven WOC due to layer-by-layer heterogeneity.
References
1. Metodicheskie rekomendatsii po podschetu zapasov nefti i gaza
ob"emnym metodom (Guidelines on the calculation of oil and gas reserves
by volumetric method): edited by Petersil'e V.I., Poroskun V.I., Yatsenko G.G., Moscow – Tver', 2003.
2. Svetlov K.V., Smagina T. N., Alimchanova L.Kh., Impact of neotectonic
movements on position of fluid contact of the Western Siberia oil deposits
(In Russ.), Neftyanoe khozyaystvo – Oil Industry, 2014, no. 11, pp. 17–19.
3. Svetlov K.V., Methodological techniques of rationale the position of conditional surface OWC for geological modeling of complex oil deposits (In Russ.), Collected papers “Puti realizatsii neftegazovogo potentsiala KhMAO” (Ways of implementation of oil and gas potential of KhMAO), Proceedings of VI Scientific and Practical Conference, Khanty-Mansiysk, 2007, pp. 308–317. 


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