Chapter 2: Microscopic Displacement of Fluids in a Reservoir
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Published:2018
"Microscopic Displacement of Fluids in a Reservoir", Enhanced Oil Recovery, Don W. Green, G. Paul Willhite
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An important aspect of any enhanced-oil-recovery (EOR) process is the effectiveness of process fluids in removing oil from the rock pores at the microscopic scale. Microscopic displacement efficiency, ED, largely determines the success or failure of a process. For crude oil, ED is reflected in the magnitude of Sor [i.e., the residual oil saturation (ROS) remaining in the reservoir rock at the end of the process] in places contacted by the displacing fluids. Because EOR processes typically involve the injection of multiple fluid slugs, the efficiency of displacement of these slugs through the reservoir is also of interest. Poor efficiency leads to early deterioration and breakdown of the slugs, which in turn leads to poor project performance.
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