James J Sheng
This paper provides an update on the status of alkaline-surfactant flooding technology. It covers the following topics: • Phase behavior of the mixture of soap and surfactant • Synergy of an AS system • Technical screening criteria • Laboratory and simulation work • Summary of AS field projects • Alkali and surfactant used • Study of AS application in heavy oil reservoirs • New development in China • Further discussions The data and analysis presented in this paper will provide readers with updated information about alkaline-surfacant flooding. Survey data will provide operators with reference data for their project design and optimization.
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