Permeability Calculation of Sand Conglomerate Reservoirs Based on Nuclear Magnetic Resonance (NMR)

Figure 5

Images showing the microscopic pore structure of some typical sand conglomerate reservoirs in the study area: (a-1–a-3) micro-CT 3D grayscale model, 3D pore model, and pore network model of reservoir M5-8, which is medium-coarse sandstone; (b-1–b-3) micro-CT 3D grayscale model, 3D pore model, and pore network model of reservoir M003-4, which is gravel-bearing coarse sandstone; (c-1–c-3) micro-CT 3D grayscale model, 3D pore model, and pore network model of reservoir M133-7, which is grain-supported conglomerate; (d-1–d-3) micro-CT 3D grayscale model, 3D pore model, and pore network model of reservoir B64-4, which is matrix-supported conglomerate.