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Information Seminar Paper

Title

EMULSION BEHAVIOR OF AN ACIDIC HEAVY CRUDE OIL AND CHEMICAL SOLUTIONS

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 Start Page | End Page

Abstract

 THE INTERFACIAL ACTIVE MOLECULES ARE RESPONSIBLE FOR PROVIDING THE WATER/OIL EMULSIONS WHICH IN MANY CASES COULD IMPROVE THE OIL DISPLACEMENT EFFICIENCY. HOWEVER, THE INTERACTION BEHAVIOR OF THESE CHEMICAL MIXTURES FOR EACH SET OF CRUDE OIL/CHEMICAL COMPOSITION IS REQUIRED TO BE INVESTIGATED SEPARATELY. TWO COMMERCIAL ANIONIC SURFACTANTS WERE PREPARED WITH CAPABILITY OF TOLERATING HIGH SALINE FORMATION WATER AND REAL OIL RESERVOIR CONDITIONS. THE SPECIFIC EMULSION BEHAVIOR OF THESE CHEMICAL SOLUTIONS ON A HEAVY CRUDE OIL WERE INVESTIGATED BY DOING ALL SETS OF EMULSION STABILITY AND EMULSION BEHAVIOR TESTS IN PRESENCE OF TWO DIFFERENT ALKALIS (SODIUM HYDROXIDE AND SODIUM CARBONATE).THE EXPERIMENTAL RESULTS SHOWED THAT THE OPTIMUM PHASE BEHAVIOR/LOWEST INTERFACIAL TENSION REGION OF THE CHEMICAL COMBINATION WAS VERY DEPENDENT ON THE NATURE OF THE USED COMPONENTS. MIXTURES OF THE SURFACTANTS AND ALKALIS GAVE THE OPTIMUM THREE-PHASE REGION AT HIGH SALINITY CONDITIONS. ADDITION OF ALKALIS IN EACH CASE IMPROVED THE EMULSION GENERATION CAPABILITY OF THE SURFACTANT MIXTURES. THE SOLUBILIZATION-RATIO FOR ALL SET OF THE CHEMICAL MIXTURES WERE EVALUATED USING THE STATIC BOTTLE TESTS AND THE RESULTS SHOWED A REASONABLE VALUE FOR ALMOST ALL THE CASES; THIS REVEALS A PROMISING CONDITION FOR THE EMULSION POSITIVE ROLE DURING CHEMICAL FLOODING IN THE OIL RESERVOIRS. THE SYNERGISTIC EFFECT OF THE SURFACTANTS AND IN-SITU SOAP GENERATED AS A RESULT OF ALKALI AND ACIDIC CRUDE OIL REACTION MADE PROMISING RESULTS FOR POSITIVE EMULSION GENERATION IN A POROUS MEDIUM.

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