An analytical cyclic steam simulation model for heavy oil reservoirs

About the authors:

Lyubov N. Sokoliuk, senior researcher, institute of theoretical and applied mechanics, Tyumen branch, Siberian branch, Russian Academy of Sciences
Lyudmila N. Filimonova, Junior Researcher, Tyumen Branch of the Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences; Postgraduate Student, Tyumen Scientific Center of the Siberian Branch of the Russian Academy of Sciences; eLibrary AuthorID, ORCID, filimonovaln@mail.ru

Abstract:

Estimated heavy oil reserves approximately conform to such of conventional oil. Amongst the multitude of EOR processes for heavy oil production the use of steam is commercially successful. Promising new technologies such as cyclic steam soaking (CSS) make it possible to gain higher oil recovery factor in heavy oil fields exploiting. CSS usage recommendations are based on the geological characteristics of heavy oil occurrence, and the dynamic state of the steam injection power. An analytical model of CSS for vertical wells has been developed and key model parameters influencing additional oil production results have been discovered. On the basis of integrated assessment methods for each factor dimensionless variables of the process parameters of CSS are calculated. The results show that the higher parameter’s value the higher oil production for each well. Using the analytical model of CSS and net present value (NPV) characteristic, optimal time of injection, soaking and production has been estimated.

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