In this study, the microscopic pore characteristics of shale in marine strata are evaluated. Based on field emission scanning electron microscopy (FE-SEM), low-temperature N 2 adsorption (LT-N GA), low-pressure CO (LP-CO GA) and high-pressure methane (HPMA) experiments, 12 shales from Wufeng–Longmaxi Formations northern Yunnan Guizhou characterized qualitatively quantitatively. Fractal Frenkel–...

China’s helium resource is highly dependent on overseas imports. Organic-rich and U/Th-rich shale reservoirs generally contain helium, although the content low, total reserve large. Therefore, effective development utilisation of shale-type resources a realistic way to improve security in China. In this study, generation mechanism, source content, migration modes pathways, controlling factors e...

This integrated study provides significant insight into parameters controlling the dynamic and static elastic behaviors of shale. Acoustic geomechanical measurement from laboratory have been coupled with detailed petrographic geochemical analyses, microtexture observations on shale samples Wufeng?Longmaxi Formation southeast Sichuan Basin. The major achievement is establishment link between dep...

Abstract Fractal dimension can be used to the pore surface characterize. For structures in different sizes, calculation models of fractal theory should distinguished due principles gas adsorption experiments. To further study adaptability model for experimental data, author collected shale samples Longmaxi formation from Well JY1, then CO 2 and N provided PSD curves. In addition, dimensions mic...

Marine shale gas exploration targets are reaching into shallow to deep or ultradeep burial depths. Rock microstructure and reservoir quality emerge as the main risk considerations for a profitable at these large Shallow marine shales occur in Silurian Longmaxi Formation of Weiyuan Block, which is located on southwestern margin Sichuan Basin. However, few details characteristics this Block have ...