Studying the CO2–CH4 displacement process is of great importance to understand the CO2-
enhanced shale gas recovery technology. However, most studies have focused on the gas …

With the emergence of shale gas, numerous atomic-scale models of kerogen have been
proposed in the literature. These models, which attempt to capture the structure, chemistry …

Coal seams are naturally occurring geological media offering tremendous potential for gas
storage. The wetting characteristics of coals at typical geological formations underpin a …

CO₂-enhanced gas recovery (EGR) is a promising method that can not only improve the
production of adsorbed shale gas but also achieve the geological storage of CO₂. During …

In this study, the adsorption and competitive diffusion of methane (CH 4) and carbon dioxide
(CO 2) mixtures through a molecular model of mature type-2 kerogen was investigated using …

Reliable prediction of gas recovery from shale formations is essential for achieving the full
potential of shale gas. A distinguishing feature of shales is that nanoscale pores dominate …

With the increasing global energy demand, unconventional oil and gas, especially shale
gas, have become an important natural gas resource. In the modern petroleum engineering …

Unconventional natural gas in organic-rich shale and coal seams, which primarily consists
of methane (CH 4), is a dominant alternative to conventional energy because of its large …

This work introduces and discusses the impacts of the water bridge on gas adsorption and
diffusion behaviors in a shale gas-bearing formation. The density distribution of the water …

The commonly used direct methods for the lost gas and in-situ gas content estimation of
shale usually follow the assumptions and mathematical models that were originally …