Results 31 to 40 of about 466 (162)

Experimental Investigation of Stress Sensitivity of Elastic Wave Velocities for Anisotropic Shale in Wufeng–Longmaxi Formation

Processes, 2023
The shale of the Wufeng–Longmaxi formation in the Sichuan Basin is the preferred layer for shale gas exploration in China, and its petrophysical characteristics are the key to geological and engineering sweet spot prediction. However, the characteristics and impact mechanisms of its acoustic wave velocity and elastic anisotropy are currently unclear ...
Yutian Feng, Hongming Tang, Haoxuan Tang, Yijiang Leng, Xuewen Shi, Jia Liu   +5 more
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Mercury Isotopes in Shale Gas From Wufeng-Longmaxi Shale Formation of Sichuan Basin, Southern China: A Preliminary Investigation [PDF]

Frontiers in Earth Science, 2022
A series of investigations have been conducted concerning the study of traditional stable isotopes and rare gas stable isotopes in natural gas. However, little is known regarding non-traditional stable isotopes of mercury in natural gas, especially in the development and utilization of shale gas in recent years.
Shunlin Tang, Yuxiang Ding, Guangyou Zhu, Xinbin Feng, Huaishun Zhang, Penggao Li   +5 more
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Study on the Formation Mechanism of Shale Roof, Floor Sealing, and Shale Self-Sealing: A Case of Member I of the Upper Ordovician Wufeng Formation–Lower Silurian Longmaxi Formation in the Yangtze Region

Frontiers in Earth Science, 2021
Similar to North America, China has abundant shale resources. Significant progress has been made in the exploration and exploitation of shale gas in China since 2009.
Ziya Zhang, Ziya Zhang, Ziya Zhang, Kun Zhang, Kun Zhang, Kun Zhang, Kun Zhang, Yan Song, Yan Song, Zhenxue Jiang, Zhenxue Jiang, Shu Jiang, Shu Jiang, Pengfei Wang, Yong Li, Xiangdong Yin, Xiangdong Yin, Xiangdong Yin, Zhiyuan Chen, Zhengwei Li, Xuejiao Yuan, Xuejiao Yuan, Pei Liu, Pei Liu, Fengli Han, Fengli Han, Liangyi Tang, Liangyi Tang, Yiming Yang, Yiming Yang, Yao Zeng, Yao Zeng   +31 more
doaj   +1 more source

Characterization of 3D pore nanostructure and stress-dependent permeability of organic-rich shales in northern Guizhou Depression, China

Journal of Rock Mechanics and Geotechnical Engineering, 2022
The three-dimensional (3D) pore structures and permeability of shale are critical for forecasting gas production capacity and guiding pressure differential control in practical reservoir extraction.
Xiaofang Jiang, Shouchun Deng, Haibo Li, Hong Zuo   +3 more
doaj   +1 more source

Stratigraphic framework of the Wufeng-Longmaxi shale in and around the Sichuan Basin, China: Implications for targeting shale gas

Energy Geoscience, 2020
Stratigraphic division and correlation are crucial for the identification of sweet spots and drilling design of shale gas. In this study, a stratigraphic division and correlation was carried out for the Wufeng-Longmaxi Formations in southern China from ...
Hongyan Wang, Zhensheng Shi, Qun Zhao, Dexun Liu, Shasha Sun, Wei Guo, Feng Liang, Changmu Lin, Xuefan Wang   +8 more
doaj   +1 more source

Geological Characteristics of Deep Shale Gas and Their Effects on Shale Fracability in the Wufeng-Longmaxi Formations of the Southern Sichuan Basin, China [PDF]

Lithosphere, 2023
The deep shale gas reservoirs of the Wufeng-Longmaxi Formations in the southern Sichuan Basin have strong heterogeneity and complex geological characteristics, resulting in a poor fracturing effect and low vertical production.
Jing Li, Hu Li, Cheng Yang, Xiaohai Ren, Yading Li   +4 more
doaj   +1 more source

Relationship between Organic Geochemistry and Reservoir Characteristics of the Wufeng-Longmaxi Formation Shale in Southeastern Chongqing, SW China [PDF]

Energies, 2021
Shale gas accumulates in reservoirs that have favorable characteristics and associated organic geochemistry. The Wufeng-Longmaxi formation of Well Yucan-6 in Southeast Chongqing, SW China was used as a representative example to analyze the organic geochemical and reservoir characteristics of various shale intervals.
Shengxiu Wang, Jia Wang, Yuelei Zhang, Dahua Li, Weiwei Jiao, Jinxi Wang, Zhian Lei, Zhongqiang Yu, Xiaojun Zha, Xianfeng Tan   +9 more
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Geological characteristics of shale in Wufeng-Longmaxi Formation of Bayu outcrop in Daozhen, northern Guizhou

Youqicang pingjia yu kaifa, 2022
The upper Ordovician Wufeng Formation and the first member of the lower Silurian Longmaxi Formation are well exposed in Bayu outcrop Daozhen, northern Guizhou, with clear and complete stratigraphic boundaries.
DU Wei, PENG Yongmin, LONG Shengxiang, NIE Haikuan, SUN Chuanxiang, YEERHAZI Talihaer   +5 more
doaj  

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, Zhijun Jin, Zhenkui Jin, Xin Wen, Yikai Geng, Caina Yan, Haikuan Nie   +6 more
doaj   +1 more source

The Intensification of Prolonged Cooling Climate-Exacerbated Late Ordovician–Early Silurian Mass Extinction: A Case Study from the Wufeng Formation–Longmaxi Formation in the Sichuan Basin

Journal of Marine Science and Engineering, 2023
The Late Ordovician–Early Silurian period was a significant transitional phase in geological history and has garnered global interest. This study focuses on the black shale series of the Wufeng Formation–Longmaxi Formation of the Upper Ordovician–Lower ...
Zhibo Zhang, Yinghai Guo, Hengye Wei, Chunlin Zeng, Jiaming Zhang, Difei Zhao   +5 more
doaj   +1 more source