Study correlates asphaltene precipitation to reservoir pressure

Modeling of asphaltene precipitation in Bangestan reservoir of Kupal field in southwest Iran estimated the pressure at which asphaltenes precipitate under reservoir conditions. The reservoir-engineering department has plans to inject gas into the reservoir to increase the reservoir pressure above this estimated precipitation pressure.The modeling technique assumed the precipitated asphaltene was a pure dense phase and divided the heaviest component in the oil into nonprecipitating and precipitating components.In the study, a set of dummy experimental data tuned an equation-of-state based model that represents the asphaltene as pure component solid. Results of the work show that the select...

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