the main purpose of this research paper is to compare qiujiahe formation (є1q) and longmaxi formation (s1ln) in north sichuan basin where shale gas exploration has not been fully researched, and hence represents the possibility of shale gas concentration under the complex geological conditions. based on valid laboratorial analysis, there are optimistic prospects for є1q and s1ln of research are...

The organopores play an important role in determining total volume of hydrocarbons in shale gas reservoir. The Lower Silurian Longmaxi Shale in southeast Chongqing was selected as a case to confirm the contribution of organopores (microscale and nanoscale pores within organic matters in shale) formed by hydrocarbon generation to total volume of hydrocarbons in shale gas reservoir. Using the mat...

During the hydraulic fracturing procedure in shale-gas exploitation, the poroelastic properties of shale formation can be altered significantly. However, it is difficult to evaluate these variations using microseismic field data. In this study, we conduct a hydro-fracturing experiment using Longmaxi shale, which is a major formation for shale-gas production in China, to simulate the water injec...

China’s most successful horizon for shale-gas exploration and development is the Upper Ordovician Wufeng Formation through Lower Silurian Longmaxi in its Yangtze Region. In this study, Wufeng–Longmaxi black shales Region are analysed to determine their microstructural characteristics, total organic carbon (TOC) content, well log characteristics identify information on parameters of Earth’s orbi...

Taking the Ordovician Wufeng Formation-Silurian Longmaxi Formation as an example of shale gas development in Southern Sichuan Basin and its periphery. According to guiding “Lithofacies paleogeographical research mapping compilation can be a guide for geological survey” methods area selection evaluation, lithofacies paleogeography basic conditions this have been carefully studied, potential area...

The marine shale of the Upper Ordovician Wufeng Formation–Lower Silurian Longmaxi Formation is main source rock and target gas exploration in southern Sichuan Basin. maturity organic matter (OM) a vital indicator for evaluation. Due to lack vitrinite, Wufeng–Longmaxi Formations Basin difficult accurately evaluate. In total, 33 core samples were selected observe optical characteristics solid bit...

In order to analyze the main factors controlling shale gas accumulation and predict potential zone for exploration, heterogeneous characteristics of source rock reservoir Wufeng-Longmaxi Formation in Sichuan Basin were discussed detail, based on data petrology, sedimentology, physical properties content. On this basis, effect coupling between generation reservation has been analyzed. The black ...