Unconventional hydrocarbon resources from low-permeability formation, i.e., tight sands and shales, are currently received great attention because of their potential to supply the entire world with sufficient energy for the decades to come. In the past few years, as a result of industry-wide R&D effort, progresses are being made towards commercial development of gas and oil from such unconventi...

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 considere...

Abstract Darcy’s law for porous media transport is given a new local thermodynamic basis in terms of the grand potential confined fluids. The effective pressure gradient determined using non-equilibrium molecular dynamics, and hydraulic conductivity permeability are investigated. coefficients single-phase flow face-centered cubic lattices solid spheres. porosity changed from that closest packin...

Onno W. Akkerman, Richard van Altena, Theo Klinkenberg, Adrienne H. Brouwers, Alphons H.H. Bongaerts, Tjip S. van der Werf and Jan-Willem Alffenaar Dept of Pulmonology and Tuberculosis, University of Groningen, University Medical Center Groningen, Groningen, Dept of Cardiothoracic Surgery, University of Groningen, University Medical Center Groningen, Groningen, Dept of Nuclear Medicine and Mole...