Sichuan Basin is the only successful basin for shale gas exploration in China. In addition to main Lower Silurian Longmaxi formation, lower Cambrian Qiongzhusi an important potential formation. However, it was once considered that difficult enrich because of its poor sealing conditions and hydrocarbon migration adjacent reservoirs. With increasing research on generation reservoir Formation rece...

The study of microfractures in shale is mainly based on qualitative description. Conversely, quantitative description the parameters can provide a basis for fracture characterization and physical properties. Nine reservoir samples Wufeng–Longmaxi Formation Jiaoshiba area were studied, using backscattered two-dimensional multiscale resolution imaging technology, combined with high-resolution map...

Shale gas is one of the hot spots energy development. Due to strong heterogeneity and low physical properties shale reservoirs, complex influencing factors pore development, it necessary conduct a comprehensive analysis control high-quality reservoirs. The sedimentary characteristics, mineral composition, structure controlling high quality reservoir development are studied on basis thin section...

This paper presents a preliminary experimental study on methane adsorption capacity in shales before and after artificial deformation. The results are based uniaxial compression isothermal tests different shale samples from the Silurian Longmaxi Formation, Daozhen County, South China. Two sets of similar cylindrical were drilled each same bulk sample, one set was subjected to compressive simula...

The shale gas exploration in Changning, Weiyuan, Fuling Jiaoshiba, and other areas has achieved great success the Sichuan Basin, basin margin of Basin will be an important target future. In view lack understanding reservoir characteristics area this paper conducts a study on gas-bearing properties using qualitative quantitative techniques. results show that thickness black Qianjiang is up to 33...

Exploring the relationship between formation pressure and shale pore evolution is helpful for enrichment development of marine gas accumulation theory. The thermal experiment was carried out on Xiamaling Formation (Pr3x) lowly matured shale, which has a similar sedimentary environment to Longmaxi (S1l) highly shale. Comparative experiments open semi-closed pyrolysis multiple structure character...

The Wufeng–Longmaxi Formation in northern Guizhou Province is the dominant shale gas exploration and development strata China. This study investigates Shixi Daozhen synclines, which are located basin margin transition zone. region experienced complex tectonic stages superimposed transformations, resulting heterogeneous preservation conditions reservoir pressure evolution different units of Form...