Compositional, geochemical and petrophysical shale play characterization of the Upper Cretaceous in southern Middle Magdalena Valley (MMV) basin, Colombia

Molecular Simulation and Experimental Study on Adsorption Effect of CH4/CO2 in Shale Minerals

“…The development and utilization of novel, efficient, and clean energy has become the theme of the modern era. Shale gas is a green, eco-friendly natural gas with high caloric value and, therefore, the study on its adsorption, diffusion, and migration in shale minerals has become the research hotspot among numerous scholars. , Shale is mainly constituted by components like organic matters, inorganic clay minerals, quartz, and carbonates. , The experimental studies on isotherm adsorption on different clay-rich rocks indicate that the adsorption capacity of different types of clay minerals for CH 4 follows the order: montmorillonite, montmorillonite mixed layer, kaolinite, chlorite, and illite . As discovered from X-ray diffraction (XRD) analysis, typical mineral components like illite, montmorillonite, and calcite have important roles in gas adsorption on the shale bed. − Owing to the large proportion of adsorbed gases in the shale, it is of great significance to investigate the adsorption and diffusion mechanisms of shale gas on the shale bed, so as to improve the shale gas recovery efficiency and promote its long-term, stable production. , …”