The Longmaxi Formation in the southern Sichuan Basin is an important target for shale gas exploration and development. characteristics stages of structural development significantly impact preservation enrichment. Taking Yanjin–Junlian area as example based on results surface underground analysis, fluid inclusion tests, apatite fission track experiments, burial-thermal evolution history a compr...

The organic-rich shales found in the Wufeng–Longmaxi Formation are typically deposited oxygen-deficient reducing environments. One of primary sources debate revolves around question whether anoxic bottom water these is either euxinic or ferruginous, and this matter remains unresolved. Previous studies have mostly focused on as a whole order to understand key factors that control organic accumul...

Abstract Organic matter pores are of important significance in the shale formation system rich organic matters. Although a lot studies have discussed controlling factors past, it still lacks quantitative analysis on contributions macerals to pores. In this study, case study based overmature marine facies reservoir first submember Longmaxi Formation Silurian Weiyuan area was carried out. Besides...

Abstract The southern margin of the Sichuan Basin is characterized by strong structural deformation, complex fault structure styles and scales, multistaged geological evolution stages, which together have created various shale gas preservation conditions. Taking Jianwu (JW)–Luochang (LC)–Shuanglong (SL) synclines as an example, development characteristics Longmaxi Formation were studied based o...