Study on the Pore Structure and Fractal Characteristics of Different Lithofacies of Wufeng–Longmaxi Formation Shale in Southern Sichuan Basin, China
Chao Qian, Xizhe Li, Weijun Shen, Qing Zhang, Wei Guo, Yong Hu, Yue Cui, Yuze Jia
Abstract
2 (pore structure complexity) (average 2.8263) is found in mixed shales, which is attributed to well-developed intraparticle (intraP) pores associated with carbonate mineral dissolution. This indicates that siliceous shales have the highest methane adsorption capacity and that shale gas desorption, diffusion, and seepage are more difficult in mixed shales.
Topics & Concepts
Oil shaleGeologyMineralogyFractal dimensionClay mineralsPorosityCarbonateTotal organic carbonOrganic matterQuartzDissolutionFractalMaterials scienceChemical engineeringChemistryGeotechnical engineeringEngineeringMathematical analysisPaleontologyMathematicsOrganic chemistryMetallurgyEnvironmental chemistryHydrocarbon exploration and reservoir analysisHydraulic Fracturing and Reservoir AnalysisCoal Properties and Utilization