Abstract Development of shale gas exploration and recovery processes have become the
research focus of the scientific and industrial communities due to the acute depletion of …

Carbon dioxide (CO2)-enhanced coalbed methane recovery (CO2-ECBM) is a critical way to
increase methane production and reduce greenhouse gas (CO2 and CH4) emissions. As …

Nuclear magnetic resonance (NMR) is a commonly used method to quantitatively
characterize the pore structure of coal. T 2 cutoff value is closely related to the microscopic …

Methane is primarily stored in coal matrix pores and pore size distribution has an important
effect on gas adsorption/desorption. Investigation of the relationship between pore size …

The characterization of organic nanopores across the entire range is essential for gas
storage and productivity evaluation of marine shale. To achieve a precise and …

In this study, we developed composite anionic–cationic (AC) surfactants with ultra-high
surface activity using sodium alpha olefin sulfonate and octadecyltrimethylammonium …

Adsorption is the principal gas storage mechanism in shale, and detailed knowledge of the
adsorption behaviour is crucial for successful shale gas production. CO2 and CH4 exhibit …

Considerable attention has been paid to the development of unconventional reservoir fields
due to the availability of such resources worldwide. The heterogeneities throughout the pore …

The complex nanopore structures in coal provide the space for gas adsorption and
migration, which is crucial for the development of coalbed methane. However, the …

The influence of degassing time and temperature on low-pressure gas adsorption (LPGA)
behavior of shales was examined in this study. Two organic-rich shales of contrasting …