Study on Distribution Characteristics and Displacement Mechanism of Microscopic Residual Oil in Heterogeneous Low Permeability Reservoirs

<div>Curves of injection pore volume versus oil displacement efficiency, water cut, and pressure with a permeability ratio of 6 for different oil displacement measures: (a) oil displacement efficiency and water cut; (b) pressure.</div>

Geofluids

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Figure 9

Figure 9: Study on Distribution Characteristics and Displacement Mechanism of Microscopic Residual Oil in Heterogeneous Low Permeability Reservoirs 