Investigation of the dissipative structures following microseismic diffusion during hydraulic fracturing of methane-hydrate-bearing sand

Hydraulic fracturing is a prospective technology for methane hydrate deposit exploitation. The evolution of hydraulically stimulated fractures around the point liquid injection simulated. For this purpose, FLAC3D computer model used because its explicit calculation cycle that imitates real physics, prevents numerical instability, and reproduces realistic path during simulation nonlinear rock massif behavior. results provide new findings, namely, spatial asymmetry synchronism violation, deviation, discontinuity, recurrence microseismic diffusion, which follow process hydraulic fracturing. In addition, dissipative structures were developed due to entropy production, since gas strata are an open thermodynamic system, transforms dissipates energy injected liquid. structure should be controlled enhance yield from hydrates.