Results 61 to 70 of about 207,928 (204)

Quantifying Natural Hydrogen‐Helium Sources and Dynamic Accumulation in Global Sedimentary Basins

Earth's Future, Volume 14, Issue 10, October 2026.
Abstract Despite the scientific and economic importance of hydrogen and helium, their crustal budgets remain poorly quantified. This study systematically assesses the accumulation of natural hydrogen and helium in global sedimentary basins by integrating predictive models for both gases with H2/He ratios.
Yongbo Wei, Quanyou Liu, Thomas J. Algeo, Dongya Zhu, Qingqiang Meng, Huiyuan Xu, Wang Zhang, Xiaoqi Wu, Pengpeng Li, Xiaowei Huang, Yin Fu, Yicheng Mou, Di Zhu, Ziqi Feng, Huaiwei Ni, Fang Hao, Zhijun Jin   +16 more
wiley   +1 more source

Palaeoenvironmental Evolution Based on Elemental Geochemistry of the Wufeng-Longmaxi Shales in Western Hubei, Middle Yangtze, China

, 2023
The organic-rich shales found in the Wufeng–Longmaxi Formation are typically deposited in oxygen-deficient reducing environments. One of the primary sources of debate revolves around the question of whether the anoxic bottom water found in these ...
Fan Luo, Saipeng Huang, Lulu Xu, Mengdi Sun, Yaru Wen, Hao Zhang, Wei Chen, Yanling Zhang   +7 more
core   +1 more source

Prediction of Fault and Fracture Density From Seismic Attributes and Machine Learning Models Calibrated With Borehole Image Logs

Basin Research, Volume 38, Issue 3, May–June 2026.
This study integrates post‐stack seismic attributes with a CNN‐based workflow to characterize sub‐seismic deformation in shale gas reservoirs. A near‐linear correlation is established between seismic characterization methods and borehole deformation counts.
Yuxin Hao, Rebecca Bell, Abdulqadir Cader, Yanghua Wang   +3 more
wiley   +1 more source

Brittleness evaluation of the shale reservoirs in Wufeng and Longmaxi formation in the DS Area, southeast Sichuan, China [PDF]

, 2018
1959-1968Present study analyzed the brittleness of shales in the Wufeng and Longmaxi Formations based on mineral composition and elasticity parameters, using a combination of core samples, well logging, X-ray diffraction, and mechanical tests ...
Li, Hu, Zhong, Cheng, Luo, Zhenhua, Qin, Qirong, Dai, Xiaojun   +4 more
core  

Precise Characterization of Fluid Logging Responses in Complex Shale Reservoirs: A Case Study From the Hongxing Area, Eastern Sichuan Basin

Geofluids, Volume 2026, Issue 1, 2026.
Precise characterization of fluid‐sensitive logging responses in complex shale reservoirs is very important. It is essential for quantitative formation evaluation and development optimization. Based on a case study of the shale gas reservoir in the second member of the Wujiaping formation (hereinafter referred to as the Wu‐2 Member) in the Hongxing ...
Pei Deng, Jun Tang, Yu Chen, Dixian Yu, Pramita Mishra   +4 more
wiley   +1 more source

Full‐Scale Pore Structure Characterization of the Late Permian Dalong Shale in Western Hubei, Southern China

Geofluids, Volume 2026, Issue 1, 2026.
The Late Permian Dalong Formation in western Hubei has recently been recognized as a promising target for shale gas development. However, the comprehensive characterization of its pore structure remains limited. To elucidate the pore system of the Dalong shale, an integrated experimental approach was applied to outcrop‐derived samples.
Bei Liu, Yanlin Zhang, Wei Chen, Feng Li, Yaru Wen, Rui Lin, M.I. Herreros   +6 more
wiley   +1 more source

Development Characteristics and Distribution Patterns of Fractures in the Wufeng-Longmaxi Formation Shale in the Southwestern Sichuan Basin, China

Lithosphere, 2022
Abstract As the important storage space and main seepage channel of the shale gas reservoirs, fractures control the migration, enrichment, and preservation of shale gas. Therefore, studying the development characteristics of fractures within shale is the key to the exploration and development of shale gas reservoirs.
Jianhua Dong, Lei Chen, Yang Yang, Xiucheng Tan, Jian Zheng, Cui Jing   +5 more
openaire   +2 more sources

Microscopic Pore Structure Characteristics and Genesis of Low Resistivity Reservoirs: A Case Study of the Wufeng and Longmaxi Formations in the Changning Area, Sichuan Basin

Energy Science &Engineering, Volume 13, Issue 12, Page 5910-5923, December 2025.
1. Organic matter graphitization forms highly conductive carbon networks, significantly reducing shale resistivity. 2. Major and trace elements further enhance conductivity through electron transfer and electrochemical reactions. ABSTRACT This study investigates the micro‐pore structure characteristics and genesis of low‐resistivity reservoirs in the ...
Xiangyang Pei, Xizhe Li, Wei Guo, Zhenkai Wu, Shengxian Zhao, Yize Huang, Sijie He, Yanan Bian, Weikang He   +8 more
wiley   +1 more source

Exploring the Effects of Hydraulic Fracturing on the 2019 Mw 5.0 Weiyuan Earthquake in Sichuan, China

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.
Abstract The seismicity inside the Sichuan Basin in southwest China has been dramatically intensified with the increase of shale gas exploitation recently. On 8 September 2019, an MW 5.0 earthquake struck Weiyuan County in the Sichuan Basin, representing the largest earthquake in the Weiyuan shale gas field.
Shuchao Tan, Lian Xue, Jinping Zi, Heng Luo, Hongfeng Yang, Li Zhao   +5 more
wiley   +1 more source

Discussion on the characteristics and controlling factors of differential enrichment of shale gas in the Wufeng-Longmaxi formations in south China

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 ...
Zhen Qiu, Caineng Zou, Hongyan Wang, Dazhong Dong, Bin Lu, Zhenhong Chen, Dexun Liu, Guizhong Li, Hanlin Liu, Jianglin He, Lin Wei   +10 more
openaire   +1 more source