Title: Experimental Studies on Core Imbibition of Low Permeability Heavy Oil Carbonate Reservoirs
Abstract: The imbibition of rock core was of great significance for improving oil recovery factor.By using self-adsorption and oil expulsion method,a series of core imbibition experiments were conducted in different conditions,the factors effect on oil recovery including were studied.Study shows that the imbibition recovery factor is influenced by low permeability,high viscosity and wettability,the recovery percent is within 10%;For the same coring well,the permeability has great effect on the core imbibition,the higher the permeability of the core is,the higher the imbibition recovery is.When the permeability is very low,the influence of oil viscosity is less,the influence increases with the raising of permeability.When the permeability is similar,the higher wettability is,the higher the ultimate recovery of imbibition would be.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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