The late stage of field development is characterized by reserves depletion; therefore, achievability of ultimate recovery becomes a topical issue. Generally, oil recovery efficiency is estimated for the entire field without due regard for geologic aspects and deposition environment. To enhance the development system efficiency it is necessary to know the achievable rate of oil recovery. Based on actual tendencies, ultimate recovery achievability is analyzed using analytical calculations and a reservoir simulation model which relies on the detailed study of reservoir rock formation process. The required actions and their scope are defined.
facies, sweep efficiency, compartmentalization, well spacing, reserve recovery, production rate
S.V. Sokolov Analiz koefficienta izvlecheniya nefti po ob"ektam mnogoplastovogo mestorozhdeniya [Oil recovery analysis for a multizone reservoir]. Neftyanoye Khozyaistvo, 2011, No.11, pp.65-67 (in Russian)
A.N. Yuriev Raschet koefficienta ohvata processom vytesneniya v sisteme skvazhin. Problemy uskoreniya nauchno-tekhnicheskogo progressa v oblasti razrabotki neftyanyh mestorozhdenij Zapadnoj Sibiri [Calculation of reservoir sweep efficiency in well system. Aspects of scientific and technical progress in oil field development in West Siberia]. Proceedings of SibNIINP, Tyumen, 1987 (in Russian)
O.M. Mkrtchyan O nekotoryh sedimentacionnyh modelyah produktivnyh plastov verhneyurskogo vasyuganskogo kompleksa Zapadnoj Sibiri. [Reservoir sedimentary models of Upper Jurassic Vasyugansky play in West Siberia]. Vestnik nedropol’zovatelya, No.15, 2005 (in Russian)
O.A. Bondarenko, LLC «Tyumen Petroleum Research Center»
O.A. Bondarenko, I.V. Geist, S.V. Sokolov Osobennosti ocenki KIN dlja povyshenija jeffektivnosti realizovannoj sistemy na pozdnej stadii razrabotki mestorozhdenija v uslovijah facial'noj neodnorodnosti na primere plasta JUV11 Severo-Var'eganskogo mestorozhdenija [Aspects of oil recovery estimation to improve efficiency of mature field development system in case of facies heterogeneity]. Neftyanaya Provintsiya, No. 4(20), 2019. pp. 184-201. https://doi.org/10.25689/NP.2019.4.184-201 (in Russian)