Results 221 to 230 of about 48,246 (256)

Computer simulation of gas pressure and drainage radius for dense boreholes gas pre-drainage in outburst coal seam

2009 4th International Conference on Computer Science & Education, 2009
The computer simulation technique has been widely applied to the mine disaster control field. In this paper, we discuss the use of dense borehole pre-drainage technology as a preventive measure for coal and gas outburst. In order to enhance the pre-drainage efficiency and rationally arrange the borehole, the solid-gas coupled RFPA2D-Gas software is ...
Li-jun Yi, Zhi-ling Tang, Qi-xiang Yu
openaire   +1 more source

Drainage waves structure in gas-liquid foam

International Journal of Multiphase Flow, 1996
Abstract The simple physical model of foam drainage suggested previously by the authors is developed. A non-linear partial differential equation is obtained to describe foam syneresis (drainage process). Special kinds of its solutions in the form of a travelling wave are analysed.
V. Goldshtein, I. Goldfarb, I. Shreiber
openaire   +1 more source

Characterization and drainage kinetics of colloidal gas aphrons

AIChE Journal, 2005
AbstractThe variation of air holdup and stability of colloidal gas aphrons (CGAs) with stirring time, surfactant concentration [6, 8.1, 10, and 12 mM sodium lauryl sulfate (SLS)], and stirring speed (3500–7000 rpm) was investigated, and an empirical correlation between the air holdup and stirring time was obtained.
Divesh Bhatia, Gaurav Goel, Sidhartha K. Bhimania, Ashok N. Bhaskarwar   +3 more
openaire   +1 more source

Significance of gas flow in anisotropic coal seams to underground gas drainage

Journal of Petroleum Science and Engineering, 2019
Abstract At present, gas drainage technology from boreholes is an effective means of preventing gas disasters in deep mines and realise better utilisation of gas. To study the spatio-temporal evolution of gas flow fields around boreholes for gas drainage, it was postulated that the permeability of a coal mass is a non-free vector relating to spatial ...
Baiquan Lin, Haoran Song, Yang Zhao, Ting Liu, Jia Kong, Zhanbo Huang   +5 more
openaire   +1 more source

Study on gas migration law and influencing factors of gas drainage

International Journal of Oil, Gas and Coal Technology, 2022
Yi Wang, Chenguang Zhao, Bing Wu
openaire   +1 more source

Investigation on gas drainage effect under different borehole layout via 3D monitoring of gas pressure

Journal of Natural Gas Science and Engineering, 2022
Shoujian Peng, Fazhi Yan
exaly  

Evaluation of underground coal gas drainage performance: Mine site measurements and parametric sensitivity analysis

Chemical Engineering Research and Design, 2021
Shimin Liu, Jinyang Fan, Qingzhao Li
exaly  

Optimization of gas drainage parameters by LBM

2008
Y Tan, M Gao, G Teng
openaire   +2 more sources

Collaborative gas drainage technology of high and low level roadways in highly-gassy coal seam mining

Fuel, 2022
Liang Yuan
exaly  

Mechanisms and field application of in-situ heat injection-enhanced gas drainage

Energy, 2023
Linjie Hu, ZengChao Feng
exaly