Research Article

Study on Damage Mechanism of Waterflooding Development in Weizhou 11-4N Low-Permeability Oilfield

Figure 5

Flow chart of sensitivity experiment. 1: high pressure microflow displacement advection pump; 2: sealed middle container; 3: filter; 4: six-way valve; 5: pressure gauge; 6: thermostat; 7: core holder; 8: manual confining pressure pump; 9: back pressure valve; 10: water separator.