Results 31 to 40 of about 3,860 (179)

Progress and development suggestions of deep normal pressure shale gas engineering technology

Shiyou shiyan dizhi, 2023
Compared with the exploration and development of medium-shallow shale gas, deep shale gas is deeply buried, with complex structures and variable pressure systems, making it difficult to increase drilling speed.
Wenping ZHANG, Shuangming LI, Jincheng ZHANG, Yanyi ZHANG, Wenxuan MIN   +4 more
doaj   +1 more source

Synergy of Pd Clusters and TiO2 {101} for Photocatalytic Nonoxidative Coupling of Methane

Advanced Science, EarlyView.
This study presents photocatalytic nonoxidative coupling of methane over cal‐Pd0.05/TiO2{101}, achieving near 100% selectivity and long‐term stability under mild flow conditions through synergistic single atoms and clusters catalysis. ABSTRACT Photocatalytic nonoxidative coupling of methane (NOCM) offers a sustainable route to valorize CH4 into C2 ...
Jianlong Yang, Annika S. Tang, Junwang Tang   +2 more
wiley   +1 more source

Characteristics and controlling factors of coal-measure unconventional reservoirs – A case study of the Carboniferous-Permian in the Ordos Basin

Unconventional Resources
Coal-measure unconventional natural gas exhibits diverse types and abundant resources, making it a strategic exploration field to marine shale gas. Currently, researches on coal-measure unconventional gas are still in the early stages, and further study ...
Zengqin Liu, Shihu Zhao, Zongquan Hu, Baojian Shen, Dongjun Feng, Jiaqi Zhang, Jincheng Ye, Chao Ma, Zhaoxiong Dong   +8 more
doaj   +1 more source

African Twist of Circular Economy: Insights, Policies and Recommendations

Business Strategy and the Environment, EarlyView.
ABSTRACT While the circular economy (CE) has gained traction, this paper argues that mainstream CE approaches risk being misaligned in the African context. Drawing on a mixed‐methods synthesis of empirical studies, policy documents and cross‐country examples, the study shows that Africa's CE transition is fragmented and uneven, leaving the continent at
Michael Odei Erdiaw‐Kwasie, Matthew Abunyewah, Amila Kasun Sampath Udage Kankanamge, Patrick Arhin, Kerstin Zander   +4 more
wiley   +1 more source

Application of measurement and control technology in deep and normal pressure shale gas exploration and development

Shiyou shiyan dizhi, 2023
Deep and normal-pressure shale gas is the key field of shale gas exploration and development of SINOPEC. At present, this type of shale gas is faced with difficulties in the beneficial development. In order to increase the productivity of single well and
Xiang GE, Wei LIU, Xin SUN, Chunwei WANG, Lin MA   +4 more
doaj   +1 more source

Recent Advances in Zn/ZSM‐5 Catalysts for Propane Dehydroaromatization: Active Sites, Co‐Aromatization, and Morphological Engineering

Carbon and Hydrogen, EarlyView.
This review summarizes recent advances in Zn/ZSM‐5 catalysts for propane dehydroaromatization, focusing on active site engineering, co‐aromatization systems, morphological regulation, and machine learning‐guided development. ABSTRACT Propane dehydroaromatization (PDA) represents a promising route for the value‐added utilization of shale gas resources ...
Shijie Zhao, Jiale Xiao, Yun Zhu, Hangjie Li, Hao Xu, Qingyue Wang, Chengtao Wang, Shien Sun, Liang Wang, Feng‐Shou Xiao   +9 more
wiley   +1 more source

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source

Geochemical characterization and evaluation of shale oil bearing characteristics of Permian Pingdiquan Formation in eastern Junggar Basin

Unconventional Resources
Of the Permian Pingdiquan Formation in eastern Junggar Basin, western China, the continental shale oil is the principal prospective unconventional resources target. Our research described the analysis on core samples from the Permian Pingdiquan Formation
Yuchen Liu, Weibiao Zhang, Xin Yang, Huixi Lin   +3 more
doaj   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Numerical Study on the Enhanced Oil Recovery by CO₂ Huff-n-Puff in Shale Volatile Oil Formations

Energies
The Sichuan Basin’s Liangshan Formation shale is rich in oil and gas resources, yet the recovery rate of shale oil reservoirs typically falls below 10%.
Aiwei Zheng, Wentao Lu, Rupeng Zhang, Hai Sun   +3 more
doaj   +1 more source