Results 31 to 40 of about 6,679 (242)

Well Pattern Optimization for Gas Reservoir Compressed Air Energy Storage Considering Multifactor Constraints

Energies
As an effective energy storage solution, gas reservoir compressed air energy storage (CAES) can efficiently utilize curtailed wind power to meet urban electricity demands.
Ming Yue, Chaoran Wei, Mingqi Jia, Kun Dai, Weiyao Zhu, Hongqing Song   +5 more
doaj   +2 more sources

Response surface analysis of influencing factors of borehole gas extraction effect

Meikuang Anquan, 2022
In order to investigate influence of different factors on borehole gas drainage performance, in-situ stress field test in targeted mining area was carried out.
GONG Xuanping, XUE Sheng, HAN Baiqing, NIAN Futian, ZHENG Chunshan, CHENG Xiaoyu   +5 more
doaj   +1 more source

Study on reasonable criterion of effective extraction radius based on desorption gas index

Meikuang Anquan, 2021
In order to get the real effective drainage radius to guide the gas pre-drainage in mining-coal bed, this paper starts from the essential goal of gas extraction, based on the requirements of gas extraction up to standard, establishes the core criterion ...
SUN Xiaoming
doaj   +1 more source

Numerical simulation study on gas drainage by interval hydraulic flushing in coal seam working face

Energy Exploration & Exploitation, 2021
In order to solve the problem of difficult gas extraction in coal mine, a method of gas extraction from coal seam by interval hydraulic flushing is put forward.
Shengrong Xie, Junqi Cui, Dongdong Chen, Ping Chen   +3 more
doaj   +1 more source

Mechanisms and equation improvement for gas seepage in coal seams around boreholes subjected to high-pressure CO2 foam fracturing

Meitian dizhi yu kantan
ObjectiveThe special low-porosity, low-permeability structures of high-gas-content coal seams restrict efficient gas drainage. To address this issue, this study accurately determined the seepage parameters of annularly fractured coals around boreholes ...
Mingkun PANG, Tianyu ZHANG, Hongyu PAN, Xianfeng SONG, Shan WU, Tianjun ZHANG   +5 more
doaj   +2 more sources

Influence of interlayer channeling of composite reservoir on gas drainage

Meikuang Anquan, 2022
In order to investigate the influence of surrounding rock characteristics on gas drainage of through layer borehole in composite reservoir, the seepage law of gas in coal seam and rock stratum is analyzed.
ZHANG Zhiyuan, ZHU Chuanjie, LIU Siyuan, LI Long   +3 more
doaj   +1 more source

Study and application on influence mechanism of instability and collapse of drainage borehole on gas drainage

Meitan xuebao, 2023
The instability and collapse of drainage boreholes is one of the key problems that hinder the efficient extraction of coal-bed methane (CBM). In order to solve the problem of instability and collapse of extraction boreholes in soft coal seams, based on ...
Xuebo ZHANG, Hao WANG, Ming YANG, Pan WANG, Linxiu HAN   +4 more
doaj   +1 more source

Study on determination of borehole drainage radius by gas content method [PDF]

, 2017
In order to determine the radius of borehole gas drainage, using five kinds of gas content under different conditions corresponding to the extraction rate were compared according to different drainage objectives, determine the need for gas drainage ...
Zhang, Yongjiang, Yongjiang Zhang, Li, Chengcheng, Chengcheng Li, Cao, Jianjun, Jianjun Cao   +5 more
core   +1 more source

Effect of hydraulic radius on long-term drainage capacity of geosynthetics drains

Geotextiles and Geomembranes, 2004
The results of the long-term drainage capacity of four types of prefabricated vertical drains (PVDs) and three types of prefabricated horizontal drains (PHDs), and as well of the transmissivity of a dual function (reinforcement and drainage) geotextile (DFG) are presented. PVD, PHD and DFG are together called geosynthetics drains in this study.
Chai, Jin-Chun, Miura, Norihiko, Nomura, Tadaaki   +2 more
openaire   +1 more source

Study and application of reasonable parameters for hydraulic punching of layer penetration boreholes in Changping Coal Mine

Energy Science & Engineering, 2023
Aiming at the application of hydraulic punching technology in soft, low permeability, and high gas coal seams in Changping Coal Mine, there are problems such as large workload, poor permeability enhancement effect, and the formation of “blank zones” in ...
Rui Min, Xiangjun Chen, Lin Wang, Zhen Huang, Haitao Li   +4 more
doaj   +1 more source