Application of Thermotropic Gels in the First Cycle of Cyclic Steam Stimulation at High-Viscosity Oil Deposits
I. V. KUVSHINOV, L. K. ALTUNINA, V. A. KUVSHINOV
Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: cyclic steam stimulation (CSS), increased oil recovery, water shut-off, injection profile smoothing, gels
Pages: 154-158
Abstract
This article presents the analysis of the results of 57 cyclic steam stimulation (CSS) treatments of the wells in the Permian-Carboniferous reservoir of high-viscosity oil of the Usinsk oil field, Komi Republic, Russia. All wells were subjected to the first cycle of steam stimulation. Among them, 46 wells were treated without additional reagents, and 11 wells were treated using the GALKA® thermotropic composition developed at the Institute of Petroleum Chemistry SB RAS. The use of gel-forming compositions was validated, starting from the first cycle of CSS, in the case of the high initial water cut. An assumption was made concerning the optimal amount of steam during CSS for a specific type of wells, as well as an increase in this parameter when using a gel-forming composition.
DOI: 10.15372/CSD2021290
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