Results 41 to 50 of about 219,276 (273)

Experimental studies on the shear resistance of original coal-shale joint [PDF]

, 2017
Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint. Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained from the direct shear tests of ...
Dong, H, Guo, B, Wang, L
core   +2 more sources

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Phase behavior of nanoconfined continental shale oil and reservoir fluid phases in the Gulong shale of the Songliao basin

Scientific Reports
The shale oil phase state is essential for assessing shale oil production, establishing development plans, and enhancing oil recovery. Previous studies on shale oil phase state mainly focused on bulk fluid phase based on fluid composition retrieved from ...
Jiamin Lu, Huasen Zeng, Qingzhen Wang, Zihui Feng, Hang Jiang, Rui Wang, Binhui Li, Qiuli Huo, Longde Sun   +8 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

Experiments on Material Proportions for Similar Materials with High Similarity Ratio and Low Strength in Multilayer Shale Deposits

Applied Sciences, 2021
It is important to systematically investigate the similar materials with high similarity ratio and low strength in multilayer shale deposits, to provide a scientific basis and experimental basis for the research of underground mining of multilayer shale ...
Yaobin Shi, Yicheng Ye, Nanyan Hu, Xu Huang, Xianhua Wang   +4 more
doaj   +1 more source

Examining the advocacy coalition framework for insight into shale gas development in US and UK political systems [PDF]

, 2014
Master's Project (M.S.) University of Alaska Fairbanks, 2014The project considers the Advocacy Coalition Framework from the discipline of policymaking which is used to examine contentious and politically complex policy issues, particularly in energy and ...
Wolfley, Kathryn
core  

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, EarlyView.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source

Discovery and genesis mechanism of high content diamondoids in the Gulong shale oil

Scientific Reports
Diamondoids are an important industrial material for biomedicine and equipment manufacturing. In addition to chemical synthesis methods used in industry, direct separation from petroleum is also a potential approach.
Xuefeng Bai, Zihui Feng, Xiaochang Zhang, Qiuli Huo, Wei Jin, Jing Sun, Huasen Zeng   +6 more
doaj   +1 more source

The Effects of Shale Gas Production on Natural Gas Prices [PDF]

, 2013
The Producer Price Index (PPI) for natural gas, measured on an annual average basis, fell 56.8 percent between 2007 and 2012, in response to strong growth in domestic energy production.
PPI Energy and Chemicals Team
core   +1 more source

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