Results 11 to 20 of about 210 (135)

Black Shale Lithofacies of the Wufeng–Longmaxi Formation in the Southeast Margin of Chongqing, China

Geofluids
China’s shale gas has undergone nearly 20 years of exploration; unconventional oil and gas geological evaluation theories and research methods have been greatly enriched, but how to quickly, conveniently, and accurately identify the sweet spots of shale gas is still puzzling many researchers. This study focuses on the black shale of the Wufeng–Longmaxi
Junqing Liu, Qisen Gong, Chenye Guo, Shuang Du, Kai Wang, Bin Wu, Shihong Xiao, Lei Wen, Ping Guo, Zhihui Zhao, Leyi Zhang, Ping Lei   +11 more
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Depositional and Diagenetic Controls on Macroscopic Acoustic and Geomechanical Behaviors in Wufeng-Longmaxi Formation Shale [PDF]

Frontiers in Earth Science, 2021
This integrated study provides significant insight into parameters controlling the dynamic and static elastic behaviors of shale. Acoustic and geomechanical behaviors measurement from laboratory have been coupled with detailed petrographic and geochemical analyses, and microtexture observations on shale samples from the Wufeng−Longmaxi Formation of the
Jixin Deng, Jixin Deng, Jixin Deng, Chongyi Wang, Chongyi Wang, Qun Zhao, Wei Guo, Genyang Tang, Jianguo Zhao   +8 more
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Types of biogenic quartz and its coupling storage mechanism in organic-rich shales: A case study of the Upper Ordovician Wufeng Formation to Lower Silurian Longmaxi Formation in the Sichuan Basin, SW China

Petroleum Exploration and Development, 2021
Biogenic quartz in the Upper Ordovician Wufeng Formation to Lower Silurian Longmaxi Formation (Wufeng– Longmaxi) shale layers in the Sichuan Basin and its periphery is qualitatively analyzed and quantitatively characterized by organic petrologic ...
Quanzhong GUAN, Dazhong DONG, Hualing ZHANG, Shasha SUN, Surong ZHANG, Wen GUO   +5 more
doaj   +1 more source

Depositional Environment and Organic Matter Enrichment in the Lower Paleozoic Shale from the Northeastern Margin of the Yangtze Platform, South China

Journal of Marine Science and Engineering, 2023
In this study, twenty-six core shale samples were collected from the marine Lower Paleozoic shale in a well in the northeastern margin of the Yangtze Platform.
Peng Liu, Changjie Liu, Ruiliang Guo
doaj   +1 more source

Integrated Petrophysical Evaluation of Shale Gas Reservoirs for Wufeng-Longmaxi Formation in Southeast Chongqing

IOP Conference Series: Earth and Environmental Science, 2021
Abstract Shale gas is an important unconventional natural gas resource. Different from conventional oil and gas exploration, gas shale is not only the source rock of natural gas, but also the cap rock and reservoir. This paper presents a logging interpretation method for comprehensive evaluation of shale gas.
Ping Yan, Xiaopan Kou, Gang Hu, Qian Yin, Lina Zhang, Wei Wang, Fuqiang Lai   +6 more
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Pressure evolution of shale gas reservoirs in Wufeng-Longmaxi formations, Lintanchang area, southeast Sichuan Basin and its geological significance

Shiyou shiyan dizhi, 2023
The Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation in Lintanchang area of the southeastern Sichuan Basin has good exploration and development conditions, and clarifying the paleo-fluid pressure evolution is of great significance for ...
Jianming TANG, Jianhua HE, Limin WEI, Yong LI, Hucheng DENG, Ruixue LI, Shuang ZHAO   +6 more
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Major controlling factors for the high-quality shale of Wufeng–Longmaxi Formation, Sichuan Basin [PDF]

Energy Exploration & Exploitation, 2017
Research on major controlling factors of the high-quality shale in Upper Ordovician Wufeng–Lower Silurian Longmaxi Formation is a major subject. Based on the information of outcrops and drilling data acquired from Southern Sichuan combined with geochemical elemental analysis and biostratigraphy, this paper analyzed the sedimentary characteristics of ...
Yuman Wang, Xinjing Li, Dazhong Dong, Chenchen Zhang, Shufang Wang   +4 more
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Classification and Evaluation on Shale Gas Reservoir for Wufeng-Longmaxi Formation in Chuannan Area, Sichuan Basin [PDF]

Lithosphere, 2021
Abstract Based on the comprehensive statistic and analysis on some representative geological and physical data, the classification criteria on net pay for shale gas reservoir of the Wufeng-Longmaxi formation in Shunan area, Sichuan Basin, are proposed, which include porosity (φ), gas saturation (Sg), density of rock (DEN), brittleness ...
Jianlin Guo, Chengye Jia, Dongbo He, Fankun Meng   +3 more
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Differential Reservoir-Forming Mechanisms of the Lower Paleozoic Wufeng-Longmaxi and Niutitang Marine Gas Shales in Northern Guizhou Province, SW China: Theories and Models

Energies, 2022
Fine dissection of microscopic pore structure variations between the Niutitang Formation and the Wufeng-Longmaxi Formation will help to improve the understanding of the underlying geological theory of shale gas in northern Guizhou Province.
Wei Du, Wei Yang, Xingyu Li, Fulun Shi, Ruiqin Lin, Yisong Wang, Daquan Zhang, Yi Chen, Zhao Sun, Fuping Zhao   +9 more
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Pore structure and fractal characteristics of Wufeng–Longmaxi formation shale in northern Yunnan–Guizhou, China

Frontiers in Earth Science, 2023
In this study, the microscopic pore characteristics of shale in marine strata are evaluated. Based on field emission scanning electron microscopy (FE-SEM), low-temperature N2 adsorption (LT-N2GA), low-pressure CO2 adsorption (LP-CO2GA) and high-pressure methane adsorption (HPMA) experiments, the pore characteristics of 12 shales from the Wufeng ...
Tao Wang, Tao Wang, Tao Wang, Fenghua Tian, Ze Deng, Ze Deng, Haiyan Hu   +6 more
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