Modeling of Gas Production from Shale Reservoirs Considering Multiple Transport Mechanisms.

ABSTRACT: Gas transport in unconventional shale strata is a multi-mechanism-coupling process that is different from the process observed in conventional reservoirs. In micro fractures which are inborn or induced by hydraulic stimulation, viscous flow dominates. And gas surface diffusion and gas desorption should be further considered in organic nano pores. Also, the Klinkenberg effect should be considered when dealing with the gas transport problem. In addition, following two factors can play significant roles under certain circumstances but have not received enough attention in previous models. During pressure depletion, gas viscosity will change with Knudsen number; and pore radius will increase when the adsorption gas desorbs from the pore wall. In this paper, a comprehensive mathematical model t

SUBMITTER: Guo C 

PROVIDER: S-EPMC4682827 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature