Study on Relationship between Dehydration Characteristics of Oil-Phase in Strong Alkali ASP Flooding and Content of Flooding Agents

Le résumé fourni par la source

Abstract Using the dehydrated and degassed crude oil from Daqing Oilfield, the flooding agents for strong alkali ASP flooding, and the simulated produced water prepared according to the actual components of the produced water, a simulated W/O emulsion was prepared. The relationship between the content of the flooding agents and the dehydration characteristics of the W/O emulsion in strong alkali ASP flooding was studied. The experiments show that, generally, as the content of the flooding agents in the produced fluid increase, the final dehydration rate of the W/O emulsion in strong alkali ASP flooding decreases, and the difficulty of separating the produced fluid increases. The influence degree of the content of the flooding agents on the separation index of the W/O emulsion in strong alkali ASP flooding, in descending order, is alkali, surfactant, and polymer.

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