Results 61 to 70 of about 4,181,948 (200)

Analysis of the difference between the test and production in Well Z202-H1 [PDF]

E3S Web of Conferences, 2020
In recent years, shale gas in the Upper Ordovician Wufeng Formation and lower Silurian Longmaxi Formation is gradually developing into deep strata in Sichuan Basin.
Lei Zhian, Mao Zhenglin, Qi Lin, Zheng Jian, Zhang Haijie, Xie Wei   +5 more
doaj   +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

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

Mitral regurgitation detection and central/eccentric classification using transformer‐based deep learning in multi‐view echocardiography

Journal of Applied Clinical Medical Physics, Volume 27, Issue 4, April 2026.
Abstract Background Fully automated diagnostic echocardiography allows for broader screening, earlier diagnosis for patients with mitral regurgitation (MR). This feasibility study developed a deep learning (DL) framework to automatically detect MR in echocardiography videos and classify regurgitation samples into central or eccentric regurgitation ...
Xiaofang Zhong, Jiancheng Zhang, Yuanyuan Sheng, Ying Guo, Yumei Yang, Yuxiang Huang, Hongjuan Zhao, Wei Zeng, Lixin Chen, Dong Ni, Jinfeng Xu, Wufeng Xue, Yingying Liu   +12 more
wiley   +1 more source

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. This paper has studied the criteria and boundary values of the petrographic classification reference parameters of the Upper Ordovician Wufeng-Lower Silurian ...
Tao YUAN, Xiangfeng WEI, Hanrong ZHANG, Chunyan LI, Fubin WEI, Longfei LU, Qiang WANG   +6 more
openaire   +1 more source

Lithofacies palaeogeography, depositional model and shale gas potential evaluation in the O3-S1 Wufeng-Longmaxi Formation in the Sichuan Basin, China

China Geology
: The black shales of Wufeng and Longmaxi Formation (Late Ordovician-Early Silurian period) in Sichuan Basin are the main strata for marine shale gas exploration, which have a yearly shale gas production of 228×108 m3 and cumulative shale gas production ...
Xiang-ying Ge, Chuan-long Mou, Xin Men, Qian Hou, Bin-song Zheng, Wei Liang   +5 more
doaj   +1 more source

Development of Upwelling during the Sedimentary Period of the Organic-Rich Shales in the Wufeng and Longmaxi Formations of the Upper Yangtze Region and Its Impact on Organic Matter Enrichment

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 ...
Shao-Ze Zhao, Yong Li, Hua-Jun Min, Tong Wang, Zhou Nie, Zhan-Zhao Zhao, Jia-Zhen Qi, Jin-Cheng Wang, Jia-Peng Wu   +8 more
doaj   +1 more source

Development and Characterization of a Curcumin‐Loaded Lipid‐Based Solution With Improved Pharmacokinetics and Hepatoprotective Efficacy in Grass Carp

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Hepatobiliary syndrome (HBS) represents a significant challenge in farmed freshwater fish. While curcumin has emerged as a promising therapeutic candidate for HBS management, its clinical application remains constrained by poor solubility and low bioavailability.
Yunchao Zhang, Shun Zhou, Shuo Li, Chunhong Zheng, Xingxing Chen, Zemao Gu   +5 more
wiley   +1 more source

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.
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
openaire   +2 more sources

Low Dosage of ABA Enhances Arbuscule Formation and Recovers the Inhibitory Effect of Low pH on This Process

Plant-Environment Interactions, Volume 7, Issue 2, April 2026.
ABSTRACT Arbuscular mycorrhizal (AM) fungi can form symbiotic associations with plants and play a significant role in enhancing plant tolerance to acidic stress, wherein arbuscules serve as key structures in this process. However, the response patterns of arbuscule development and function under low pH conditions remain poorly understood.
Xiaodi Liu, Zengwei Feng, Wei Zhang, Ning Wang, Qing Yao, Honghui Zhu   +5 more
wiley   +1 more source