Abstract
Taking two weak alkali ASP flooding test blocks as the research object, the injection-production characteristics, effective characteristics, agent recovery characteristics, reservoir inhalation condition, pressure characteristics and emulsification characteristics were analyzed. The results showed that the weak alkali ASP flooding had strong injection-production ability, high oil recovery rate, improved suction condition, established effective driving pressure system, obvious emulsification, and not serious chromatographic separation. The apparent inhalation index decreased by 23%-33%, and the liquid production index decreased by 31-42%; The inhalation thickness ratio were 89.5%-92.7%, and the water cut decreased by 16%-20%; The enhanced recovery increased by over 20% in the weak alkali ASP flooding of the second oil reservoir.
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More From: IOP Conference Series: Earth and Environmental Science
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