Experimental studying of pore morphology and wettability effects on microscopic and macroscopic displacement efficiency of polymer flooding
Highlights
► Pore morphology and wettability control polymer flood performance and oil recovery. ► Wettability influences on connate-water distribution and polymer solution behavior. ► Heterogeneity could either suppress or enhance efficiency of polymer flooding. ► Water- and mixed-wet media have higher oil recoveries compared to oil-wet media.
Keywords
polymer flooding
wettability
pore morphology
microscopic and macroscopic displacement
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