Water-sensitive damage mechanism and the injection water source optimization of low permeability sandy conglomerate reservoirs

WANG Lei,ZHANG Hui,PENG Xiaodong,WANG Panrong,ZHAO Nan,CHU Shasha,WANG Xinguang,KONG Linghui

Fig. 10. Results of particle migration inhibition experiments. Displacement permeability refers to the permeability measured during the process of single-phase displacement. By measuring the pressure at the inlet and outlet of the core and the fluid velocity at the outlet under a certain injected pore volume multiple, the displacement permeability can be calculated by using the generalized Darcy formula (4) considering the low speed non-linear seepage and core parameters.