Seepage Force and Its Direct Mechanical Effects in Hydrate-Bearing Porous Media

Figure 11

An unsaturated system composed of two idealized spherical generalized solid particles under unsaturated seepage conditions, including two subsystems: (a) an unsaturated system where the effective pore space is occupied by the gas and capillary water together; (b) a subsystem fully saturated with gas under homogenized gas pressure; (c) a subsystem completely saturated with capillary water under homogenized capillary water pressure.