Results 1 to 10 of about 290 (175)
Energy GeoscienceShales of the Wufeng-Longmaxi formations in the basin-margin transition zone of southeastern Chongqing, China are characterized by high organic matter content and a significant presence of pyrite development.
Xiao Cai +8 more
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Impact of Overpressure on the Deep Shale Pore System-A Case Study of Wufeng-Longmaxi Formations from the Southern Sichuan Basin. [PDF]
ACS Omega, 2023 This study investigated the effect of overpressure on the deep shale pore system in the Wufeng-Longmaxi Formation (WLF), a well-established shale gas reservoir in the southern Sichuan Basin, China. The Y1 well was drilled to explore deeper overpressured sections of the basin.
Xu L, Pan R, Hu H, Wang T.
europepmc +3 more sources
Shale petrofacies division of Wufeng-Longmaxi formations in Sichuan Basin and its periphery
Shiyou shiyan dizhi, 2020 The research of shale petrofacies is significant for the exploration of shale gas "sweet spots". Different petrographic division schemes have been proposed but no consensus has been reached.
Tao YUAN +6 more
doaj +2 more sources
Depositional environment of shale in Wufeng and Longmaxi Formations, Sichuan Basin
Petroleum Research, 2017 Formation of organic-rich shale was controlled by depositional processes and environment condition. According to petrology, mineralogy, fossil composition and sedimentary structure, seven lithofacies of shale were identified in the Wufeng Formation to ...
Jianhua Zhao, Zhenkui Jin, Xin Wen
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Conditions for shale gas accumulation and the gas-bearing factors of the Wufeng-Longmaxi formation in the Laifeng-Xianfeng area. [PDF]
Sci RepIn this work, taking wells LD1, LD2, and LY2 in the Laifeng-Xianfeng area as the research target, through core description, intensive core sampling, experimental analysis, imaging logging and other methods, the characteristics of graptolite zone development, organic carbon content, mineral composition, shale reservoir properties and the gas-bearing ...
Jiang S +5 more
europepmc +4 more sources
Petroleum Exploration and Development, 2017 The reservoir characteristics of the Upper Ordovician Wufeng-Lower Silurian Longmaxi Formations in southern Sichuan Basin were preliminarily revealed in this study by identifying and quantitatively evaluating the fracture pores of five appraisal wells in
Yuman Wang, Xinjing Li, Dazhong Dong
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Journal of Marine Science and Engineering, 2019 This study uses logging data, mineral component content, total organic carbon (TOC) content, and microscopic characteristics of the organic-rich shales in the Wufeng and Longmaxi Formations, as well as data reported by other researchers, to demonstrate ...
Hua-Jun Min
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Changes in palaeoclimate and palaeoenvironment in the Upper Yangtze area (South China) during the Ordovician–Silurian transition [PDF]
Scientific Reports, 2022 The Ordovician–Silurian transition was a critical period in geological history, during which profound changes in climatic, biotic, and oceanic conditions occurred.
Xin Men, Chuanlong Mou, Xiangying Ge
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Journal of Natural Gas Geoscience, 2020 Abstract The annual output of shale gas from the Wufeng-Longmaxi formations in South China reached 15.4 × 109 m3 in 2019, which makes Sichuan basin the second-largest shale gas producing area in the world. Based on the data of more than 1000 shale samples of the Wufeng-Longmaxi formations taken from typical drilling and outcrop profiles in the ...
Caineng Zou, Dazhong Dong, Dexun Liu
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Energy GeoscienceThis study aims to determine the variation and controlling factors of shale gas adsorption capacity in reservoirs in the Upper Ordovician Wufeng Formation and the Lower Silurian Longmaxi Formation (also referred to as the WF-LMX formations), South China.
Zhiliang He +2 more
exaly +3 more sources