Journal
THERMOPHYSICS AND AEROMECHANICS
Volume 25, Issue 6, Pages 909-916Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S0869864318060112
Keywords
highly viscous oil; alkaline-surfactant-polymer (ASP) flooding; Winsor type III emulsion; phase behavior
Funding
- Science Commission of Education Ministry of Kazakhstan Republic [AP05130355]
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The paper presents experiments on using alkali-surfactant-polymer compositions (for ASP flooding) in tests on cores saturated with highly viscous oil. The phase behavior was evaluated for solutions with different concentrations of alkali (NaOH) and surfactant (SDS) after mixing with highly viscous oil samples; this defined the optimal agent com-positions for producing Winsor type III emulsions. Experiments on core saturated with highly viscous oil demonstrated the pumping of ASP agent in the form of aquatic solutions surfactant/alkali and polymer after regular water flooding give the gain in the oil displacement in the range from 19 to 37 %.
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