The demand for shale gas has propelled researchers to focus on precise and high-resolution stratigraphic divisions homogeneous shales, of which the late-Ordovician Wufeng (O3w) early-Silurian Longmaxi (S1l) formations in southwest China are two best candidates exploration China. However, systematic chemostratigraphic work these strata is still sparse, existing either lack representativeness ter...

Abstract In the exploitation of shale gas in deep and ultradeep formations, mechanical properties change under action high temperature pressure. High-temperature stimulation can effectively release damage water phase trapping, which was caused during drilling completion hydraulic fracturing reservoirs. this paper, experiments have twelve groups samples (three per group) four target temperatures...

Abstract In southern Sichuan Basin, the main production layers are characterized by deeply buried, high stress difference, and complex structural conditions. The Luzhou area is far from large faults, natural fractures greatly important for shale gas storage production. Multi-scale control migration, enrichment, preservation conditions of gas, facilitate formation fracture network under action h...

China has abundant shale gas resources with great exploration potential, and stage progress been made in this aspect. The sedimentary environment reservoir characteristics are important aspects of the study on accumulation. Previous studies have mostly carried out from a “qualitative” perspective, but not “quantitative” one. There is lack comparative “marine shales different TOC contents”. This...