Studies sponsored by the Research Partnership to Secure Energy for America (RPSEA) and the U.S. Department of Energy (USDOE) have opened the door to a whole new set of opportunities for commercial development of residual oil zones (ROZs) throughout the world. The historical understanding of the zones beneath the oil/water contacts in reservoirs had been relegated to the category of transition zones wherein capillary pressure and surface tension controlled the bottom of a reservoir; where there exists a mixed oil and water zone of several feet to….

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