Results 21 to 30 of about 25,543 (262)

Nonlinear Fractal Flow Model of Fractured Vertical Wells With Stimulated Reservoir Volume Considering the Quadratic Gradient Term

Geofluids
Although various fractal flow models have recently been developed to investigate pressure responses of fractured vertical wells, almost all of the existing fractal models ignore the quadratic gradient term (QGT), which makes them violate mass ...
Xuefeng Yang, Xin Jiang, Cheng Chang, Yizhao Chen, Xiaojing Ji, Yanze Wan, Ziqi Qiu, Junjie Ren   +7 more
doaj   +1 more source

SSZ‐13 Zeolite with Isolated Co2+ Sites as an Efficient and Durable Catalyst System for Non‐Oxidative Ethane Dehydrogenation

Angewandte Chemie International Edition, EarlyView.
Catalysts with the isolated Co2+ species in the 6MR (Co2+─Z2) and 8MR ([Co(OH)]+─Z) windows of the SSZ‐13 zeolite were synthesized for non‐oxidative ethane dehydrogenation to ethene. The Co2+─Z2 species demonstrate an unexpectedly high rate of ethene formation in comparison with the ([Co(OH)]+─Z species.
Qiyang Zhang, Tao Zhang, Bing Liu, Elizaveta Fedorova, Dmitry E. Doronkin, Evgenii V. Kondratenko   +5 more
wiley   +1 more source

NMR-Based Quantitative Characterization of Water Imbibition in Deep Shale Rocks Under Different Pressures and Temperatures

Geofluids
Unconventional tight/shale gas reservoirs have gained significant attention in the energy sector. The importance of temperature and pressure in shale imbibition lies in their profound influence on the kinetics, rate, and ultimate amount of water uptake ...
Kaishuo Yang, Cheng Chang, Weiyang Xie, Yizhao Chen, Xingchen Wang, Fanxiang Xu, Xinhao Gong, Dunqing Liu   +7 more
doaj   +1 more source

The effect of structural preservation conditions on pore structure of marine shale reservoir: a case study of the Wufeng-Longmaxi Formation shale, Southern Sichuan Basin, China

Frontiers in Earth Science
The marine shale within the Sichuan Basin constitutes China’s significant shale gas production, featuring old formation age, high degree of thermal evolution, multiple tectonic movements, and complex structural conditions.
Weiming Yu, Weiming Yu, Shusheng Yuan, Shusheng Yuan, Haoxuan Tang, Haoxuan Tang, Chao Luo, Chao Luo, Wei Wu, Wei Wu, Jia Liu, Jia Liu, Yuran Yang, Yuran Yang, Kesu Zhong, Kesu Zhong, Liang He, Liang He   +17 more
doaj   +1 more source

Lattice Boltzmann modeling of the coupled imbibition-flowback behavior in a 3D shale pore structure under reservoir condition

Frontiers in Earth Science, 2023
Imbibition and flowback of fracturing fluid usually occur in the shale matrix after hydraulic fracturing, which significantly impacts shale gas production and environmental protection. The rocks of deep shale gas reservoirs are under high-temperature and
Shuai Wu, Shuai Wu, Jianfa Wu, Jianfa Wu, Yong Liu, Xuefeng Yang, Xuefeng Yang, Juan Zhang, Jian Zhang, Jian Zhang, Deliang Zhang, Deliang Zhang, Bing Zhong, Dongchen Liu, Dongchen Liu   +14 more
doaj   +1 more source

Molten‐Salt‐Mediated Chemical Looping Oxidative Dehydrogenation of Ethane with In‐Situ Carbon Capture and Utilization

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell, Dennis Chacko, Kunran Yang, Jace Carsten, Junchen Liu, Matthew Housley, Fanxing Li   +6 more
wiley   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

Control factors and risk prediction of casing deformation in deep shale gas wells in southern Sichuan Basin

Unconventional Resources
Casing deformation seriously affects the fracturing progress and stimulation effect of shale gas reservoirs. Considering casing deformations in fractured deep shale gas wells in the Luzhou block of southern Sichuan Basin, the influences of micro ...
Cheng Shen, Bo Zeng, Sha Liu, Yingjie Xu, Zhiguang Yao   +4 more
doaj   +1 more source

Hotspots, trends, and regional focus on oil or gas exploration: A bibliometric comparative study

Deep Underground Science and Engineering, EarlyView.
This paper explores the research trends in global oil and gas exploration through the bibliometric analysis of 3460 articles collected from the Web of Science database on oil and gas exploration published from 2013 to 2023. The research hotspots, objects, regional distribution, methods, and evaluation methods of oil and gas exploration are analyzed and
Jihong Wang, Zhongkai Li, Jianguo Wang, Zhiqiang Li   +3 more
wiley   +1 more source

Field experience and numerical investigations of minifrac tests with flowback in low-permeability formations

Underground Space, 2021
In this study, flowback-assisted minifrac tests were conducted in low-permeability shale and salt formations to measure the in situ stress. An injection/flowback testing protocol was implemented in each test to achieve accuracy and efficiency.
Yu Fan, Rui Yong, Bo Zeng, Yi Song, Xiaojin Zhou, Bin Xu   +5 more
doaj   +1 more source