Results 41 to 50 of about 1,021 (176)

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

Geochemical characteristics and organic matter enrichment model of Wufeng-Longmaxi formations shale in northeast Sichuan China

Meitan kexue jishu
The Sichuan Basin, located in southwestern China, is considered the primary producing area for shale gas development in the country. Its rich shale gas reserves have made it a significant contributor to China’s energy production. Within the Sichuan Basin,
Zhibo ZHANG, Yinghai GUO, Weiqing ZHENG, Chunlin ZENG, Yan LI, Difei ZHAO, Jiaming ZHANG   +6 more
doaj   +1 more source

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  

Micro scopic heterogeneity and mechanical anisotropy of the laminated shale in Longmaxi Formation

地质科技通报, 2021
As a clean energy, the commercial development and utilization of shale gas affect the global energy landscape. The microscopic heterogeneity and mechanical anisotropy of laminated shale have crucial significance for studying wellbore stability and the hydraulic fracture (HF) geometry.
Jingyu Xie, Hongzhi Lu, Lei Chen, Xianpeng Jin, Dan Wang, Guoqiang Fu   +5 more
openaire   +1 more source

Reservoir diagenesis research of Silurian Longmaxi Formation in Sichuan Basin, China

Journal of Natural Gas Geoscience, 2016
AbstractThe reservoir diagenesis of Silurian Longmaxi Formation in Sichuan Basin was studied based on a large number of thin section identification, scanning electron microscopy analysis, X-ray diffraction tests, and some other experiments. Seven diagenetic processes were identified, including compaction, cementation, clay mineral transformation ...
Lingming Kong, Maoxia Wan, Yuxia Yan, Chunyan Zou, Wenping Liu, Chong Tian, Li Yi, Jian Zhang   +7 more
openaire   +2 more sources

Asperity‐Driven Cascading Rupture of a Mw 1.6 Induced Microearthquake

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Studies of small earthquake (M < 2) rupture processes traditionally rely on simplified models that assume symmetric slip or point sources. Using an exceptionally dense seismic network and empirical Green's function (EGF) analysis, we investigate the complex rupture of a Mw 1.6 microearthquake induced by hydraulic fracturing.
Xinxing Chen, Haichao Chen, Fenglin Niu, Xiaobo Meng   +3 more
wiley   +1 more source

Microscopic time‐dependent mechanical behavior of shale derived from nanoindentation

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 160-175, March 2026.
This study conducted grid nanoindentation creep tests to systematically analyze the microscopic creep behaviors of shale. Based on the analysis of creep strain rate sensitivity, the primary mechanism of microscopic creep in shale was found to be the extension and closure of microcracks.
Cunbao Li, Shilei Zhong, Heping Xie, Changtai Zhou, Jianjun Hu   +4 more
wiley   +1 more source

Lamina characteristics of gas-bearing shale fine-grained sediment of the Silurian Longmaxi Formation of Well Wuxi 2 in Sichuan Basin, SW China

Petroleum Exploration and Development, 2018
Based on various test data, the composition, texture, structure and lamina types of gas-bearing shale were determined based on Well Wuxi 2 of the Silurian Longmaxi Formation in the Sichuan Basin.
Zhensheng SHI, Zhen QIU, Dazhong DONG, Bin LU, Pingping LIANG, Mengqi ZHANG   +5 more
doaj   +1 more source

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