Results 41 to 50 of about 116,125 (252)

In-situ laser retorting of oil shale [PDF]

, 1977
Oil shale formations are retorted in situ and gaseous hydrocarbon products are recovered by drilling two or more wells into an oil shale formation underneath the surface of the ground.
Bloomfield, H. S.
core   +1 more source

Sustainability of UK shale gas in comparison with other electricity options: Current situation and future scenarios.

, 2017
Many countries are considering exploitation of shale gas but its overall sustainability is currently unclear. Previous studies focused mainly on environmental aspects of shale gas, largely in the US, with scant information on socio-economic aspects.
Azapagic, A, Cooper, J, Stamford, L
core   +1 more source

Shale gas production: potential versus actual greenhouse gas emissions [PDF]

, 2012
Estimates of greenhouse gas (GHG) emissions from shale gas production and use are controversial. Here we assess the level of GHG emissions from shale gas well hydraulic fracturing operations in the United States during 2010.
, , , , , , , , , , , , , Anderson D M Nobakht M Moghadam S Mattar L, Baihly J R Altman R Malpani R Luo F, Berman A E, Burnham A, Cathles L, Curtis M E, Deutch J, Fan L J Thompson W Robinson J R, Francis O’Sullivan, Hammes U, Howarth R, Howarth R, Howarth R, Hughes D, Hultman N, Jacoby H, Jarvine D, Jiang M, Lee W J, McDonald F, Sergey Paltsev, Shindell D, Soraghan M, Stephenson T, Tollefson J, Urbina I, Weber C L   +39 more
core   +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

PINN-Based Method for Predicting Flow Field Distribution of the Tight Reservoir after Fracturing

Geofluids, 2022
The physical-informed neural network (PINN) model can greatly improve the ability to fit nonlinear data with the incorporation of prior knowledge, which endows traditional neural networks with interpretability.
Jun Pu, Wenfang Song, Junlai Wu, Feifei Gou, Xia Yin, Yunqian Long   +5 more
doaj   +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

Nanoporous Gas Transport in Shale Gas Reservoirs

International Journal on Engineering, Science and Technology, 2022
In more conventional gas reservoirs, gas flow is simple, uncomplicated, and described by simple flux pressure drop expressions. In shale reservoirs however, this relationship takes the form of a more complex and multiscale flow process involving special flow mechanisms.
Evans Ogoun, Priscilla Ogunlude, Ofasa Abunomah, Edward Gobina   +3 more
openaire   +2 more sources

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, EarlyView.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +1 more source

Effects of the Sedimentary Environment on Organic-Rich Shale in the Intracratonic Sag of the Sichuan Basin, China

Applied Sciences
The enrichment of organic matter in high-quality marine shale is generally controlled by factors such as the redox conditions of sedimentary environments, productivity levels, terrigenous input, and ancient productivity.
Xuewen Shi, Jia Liu, Yiqing Zhu, Liang Xu, Yuran Yang, Chao Luo, Yanyou Li, Kesu Zhong, Xue Yang, Qiuzi Wu, Liang He, Demin Shi, Xingzhi Wang   +12 more
doaj   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source