Adsorbed-phase surface diffusion has been recognized as an important controlling factor on
gas apparent permeability in micropores and smaller mesopores. However, for the …

There has been a growing interest in the study of low-velocity non-Darcy flow in tight
reservoirs. Most existing non-Darcy equations, however, are flawed in model assumption …

The prediction of rock permeability is important in the extraction of oil/gas from tight
reservoirs. Permeability is determined by connected pores and their distribution in rocks …

Shale matrix permeability is one of the most important parameters for characterizing a
source rock reservoir and for predicting hydrocarbon production. The low permeability value …

To improve the understanding of gas transport processes in tight rocks (eg, shales),
systematic flow tests with different gases were conducted on artificial micro-to nanoporous …

Multi-fractured horizontal wells (MFHWs) have enabled commercial production from low-
permeability oil reservoirs but oil recoveries remain exceedingly small using the primary …

Quantification of absolute permeability to liquid hydrocarbons is critical for the evaluation of
production potential of tight oil and liquid-rich gas reservoirs. However, due in part to the …

Significant technology development has aided gas and oil production from Canadian ultra-
low permeability (unconventional) reservoirs during the past twenty years. Multi-fractured …

Tortuosity is a significant parameter in porous materials analysis. Not only, when it comes to
rocks or soils but also cellular materials, alloys or cells, the multiple definitions exist for …

Computed X-ray tomography (CT), together with nuclear magnetic resonance spectroscopy,
pulse-and pressure-decay permeability methods, is a source of comprehensive information …