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Information Seminar Paper

Title

ENHANCED OIL RECOVERY USING MICROEMULSION FLOODING: PHASE BEHAVIOR AND MICROMODEL EXPERIMENTS

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Abstract

MICROEMULSION FLOODING IS ONE OF THE NEWEST METHODS OF CHEMICAL ENHANCED OIL RECOVERY (EOR) PROCESSES. IN THIS PAPER, EFFICIENCY OF MICROEMULSION FLOODING IS EVALUATED. FOR THIS PURPOSE, PHASE BEHAVIOR EXPERIMENTS ARE CONDUCTED ON A NONIONIC SURFACTANT TO SCREEN OPTIMUM MICROEMULSION MIXTURE. EFFECTIVE PARAMETERS ARE STUDIED SUCH AS LIMITING PHASE, DISPERSION RATIO, AND SURFACTANT CONCENTRATION. THE OPTIMUM VOLUME OF STABLE MICROEMULSION IS PRODUCED WHEN OIL (GAS OIL): WATER (BRINE 3.5 %) RATIO IS 30:70 AND SURFACTANT CONCENTRATION IS 10 CMC. THIS PHASE IS APPLIED IN MICROMODEL EXPERIMENTS TO INVESTIGATE THE EOR PERFORMANCE OF MICROEMULSION FLOODING. VISUALIZATION TESTS INDICATE THIS METHOD RESULTS IN 51.39 % OIL RECOVERY COMPARED TO 40.90 % OF WATER FLOODING. PROPOSED MECHANISMS FOR THIS INCREMENTAL OIL RECOVERY MAY BE ASSIGNED TO SIMULTANEOUS IMPROVEMENT OF SWEEP EFFICIENCY AND SURFACE PROPERTIES OF INJECTION FLUID. THE RESULTS OF THIS INVESTIGATION SHOW APPROPRIATE POTENTIAL OF MICROEMULSION FLOODING IN CHEMICAL EOR METHODS.

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