Results 21 to 30 of about 75,520 (349)

A Study on Stress Redistribution of Roadway Sidewall after Hydraulic Fracturing in Coal Bumps Prevention

open access: yesShock and Vibration, 2022
Hydraulic fracturing is an effective mean to prevent coal bumps in deep coal mining. The calculation of stress redistribution of coal sidewall after hydraulic fracturing can evaluate the fracturing effect and provide a reference for the hydraulic ...
Yanchun Yin   +4 more
doaj   +1 more source

Combination of Pre-Pulse and Constant Pumping Rate Hydraulic Fracturing for Weakening Hard Coal and Rock Mass

open access: yesEnergies, 2020
The weakening of hard coal–rock mass is the core common problem that is involved in the top coal weakening in hard and thick coal seams, the hard roof control during the initial mining stage in the longwall mining face, and the hanging roof control in ...
Qingying Cheng   +6 more
doaj   +1 more source

Hydraulic fracturing in cells and tissues: fracking meets cell biology [PDF]

open access: yes, 2017
The animal body is fundamentally made of water. A small fraction of this water is freely flowing in blood and lymph, but most of it is trapped in hydrogels such as the extracellular matrix (ECM), the cytoskeleton, and chromatin.
Arroyo Balaguer, Marino   +1 more
core   +4 more sources

Hydraulic Fracturing

open access: yes, 2019
Hydraulic fracturing or also know as fracking, the removal of natural gas and oil from shale rock, took off in the 1990s, but the anti-fracking movement didn't start taking notice until 2005. Fracking began to take place in the the south and the middle of the United States, because those areas are not known for have environmental activists.
Hatch, Mandilyn, Burnham, Shannon
openaire   +3 more sources

Using borehole radar detecting hydraulic fracturing crack in near horizontal holes in coal mine

open access: yesFrontiers in Earth Science
Currently, hydraulic fracturing technology is widely implemented for controlling the surrounding rock and enhancing permeability in low-permeability coal seams.
Jiang Bici, Jiang Bici
doaj   +1 more source

Frictional Stabilities on Induced Earthquake Fault Planes at Fox Creek, Alberta: A Pore Fluid Pressure Dilemma

open access: yes, 2019
Earthquakes induced during hydraulic fracturing operations have occurred in a number of locales. However, in-situ studies aimed to discern the triggering mechanism remains exclusively statistical in their nature.
Schmitt, Douglas R.   +2 more
core   +1 more source

The Human Right to Water and Unconventional Energy [PDF]

open access: yes, 2018
Access to water, in sufficient quantities and of sufficient quality is vital for human health. The United Nations Committee on Economic, Social and Cultural Rights (in General Comment 15, drafted 2002) argued that access to water was a condition for the ...
Auch, Walter E. Ted   +2 more
core   +1 more source

Numerical simulation and engineering application of comb-shaped directional long borehole hydraulic fracturing under different arrangement of holes

open access: yesMeikuang Anquan, 2021
In order to avoid the blindness of the hydraulic fracturing of the directional long borehole in coal mine 2130 of Xinjiang Coking Coal Group, and to accurately grasp the extension and expansion of hydraulic fracturing under different hole layout methods,
LI Wen, WANG Guanghong, OU Cong, LI Shourui, LI Xiangwang, ZHAO Huajun, LIU Jianhua, ZHAO Bi
doaj   +1 more source

Advances in Laboratory-Scale Hydraulic Fracturing Experiments

open access: yesAdvances in Civil Engineering, 2020
Hydraulic fracturing has been widely applied to stimulate the natural gas and oil production from unconventional reservoirs. To optimize the design of hydraulic fracturing in this application, an accurate estimation of the initiation and propagation of ...
Yelin Qian   +5 more
doaj   +1 more source

Study on variation law of coal disturbance stress in hydraulic fracturing test

open access: yesMeikuang Anquan, 2023
In order to explore the variation of disturbance stress in the coal seam around the fracturing borehole in the process of hydraulic fracturing, taking the 1703 coal face of Junlian Jinzhong Coal Mine Company as the test site, on the basis of determining
CHEN Kai, ZHANG Dongming, REN Fake
doaj   +1 more source

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