Results 31 to 40 of about 7,798 (251)

Generalized Matsuoka–Nakai criterion considering hydrostatic pressure dependence in the brittle–ductile region

Deep Underground Science and Engineering, EarlyView.
Three sets of strength data were selected, including hydrostatic pressure independent within the brittle region (HPI‐B), hydrostatic pressure dependent within the brittle region (HPD‐B), and hydrostatic pressure dependent within the brittle–ductile region (HPD‐BD). For HPI type, the failure envelope within the deviatoric plane remains constant.
Jiacun Liu, Junjie Xiao, Dongping Liu, Ying Xu   +3 more
wiley   +1 more source

Adsorption and Desorption of Molybdenum on Rock and Soil Media

He huaxue yu fangshe huaxue
The release of radioactive 99Mo into the environment may lead to adverse effects on radiation safety and environmental security. Studying the migration behavior of molybdenum in environmental media is of great importance for the healthy development of ...
Pengliang LIANG, Tian XIE, Chao CHEN, Song YANG, Ruiqing WANG, Ying HAO, Jun ZHU, Bing LIAN   +7 more
doaj   +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

Discussion on genesis and geological significance of "low resistivity and low gas content" of Longmaxi Formation shale in southeastern Sichuan

Shiyou shiyan dizhi, 2023
In order to clarify the genesis of "low resistivity and low gas content" in the shale of Wufeng-Longmaxi formations and effectively guide the next step of shale gas exploration in Sichuan Basin, a detailed study on the problem based on a large number of ...
Fubin WEI, Zhujiang LIU, Feiran CHEN, Wei YAN, Qiang WANG   +4 more
doaj   +1 more source

Failure characteristics analysis of the inclined interlayer during water‐soluble cavity construction of underground salt caverns for large‐scale energy storage

Deep Underground Science and Engineering, EarlyView.
In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao, Tianyu Li, Qing Ma, Junlong Shang, Jiaze Du, Ruizhe He   +5 more
wiley   +1 more source

Anisotropic Mechanical Behaviors of Shale Rock and Their Relation to Hydraulic Fracturing in a Shale Reservoir: A Review

Energies
Shale gas is an important supplement to the supply of natural gas resources and plays an important role on the world’s energy stage. The efficient implementation of hydraulic fracturing is the key issue in the exploration and exploitation of shale gas ...
Peng-Fei Yin, Sheng-Qi Yang, Pathegama Gamage Ranjith   +2 more
doaj   +1 more source

Experimental study on hydrocarbon generation and expulsion characteristics of shale with different source-reservoir structures in Lucaogou Formation, Jimsar Sag, Junggar Basin

Shiyou shiyan dizhi, 2023
The Permian Lucaogou Formation in the Jimusar Sag in the east of the Junggar Basin is a typical continental shale oil series in China. Employing the semi-closed thermal simulation system, an experimental study on hydrocarbon generation and expulsion of ...
Erting LI, Yueyang PAN, Guangqing YANG, Haifeng BAI, Wanyun MA, Jianhui ZENG, Yu ZHANG   +6 more
doaj   +1 more source

Improved technique for toughness testing of shale rocks [PDF]

Engineering Fracture Mechanics, 2020
Abstract Mode I fracture mechanics tests of mostly calcareous Vaca Muerta shale rocks were performed in a new experimental device. A hydraulic system allows the injection of pressurized fluids inside of cracks to generate applied KI and measure fracture toughness in room pressure and temperature conditions.
Antinao Fuentealba, Fabián Jorge, Otegui, Luis Jose, Bianchi, Gustavo Luis   +2 more
openaire   +2 more sources

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

Damage response and influencing factors of plastic damage caused by hydraulic fracturing of shale

Meitan kexue jishu
Shale reservoir hydraulic fracturing is a complex fluid solid coupling physical process. During fracturing, the infiltration of high-pressure fluid in the wellbore can induce the germination of microcracks in the surrounding rock of the wellbore, thereby
Zhonghui SHEN, Lei ZHOU, Dong LIN, Zhiguo GUO, Ziyi WANG, Xijian LI   +5 more
doaj   +1 more source