Zobrazeno 1 - 10
of 112
pro vyhledávání: '"deep coal seam"'
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 11, Pp 4950-4964 (2024)
Abstract In this study, a three‐dimensional large‐scale numerical model is established to investigate the failure characteristics of overlying strata and mechanism of strong ground pressure induced by excavation disturbance from multiple working
Externí odkaz:
https://doaj.org/article/1c7694a222c2488bb9afc0d5464d1ad3
Publikováno v:
矿业科学学报, Vol 9, Iss 2, Pp 156-166 (2024)
The feasibility of underground gasification of Yan 9 coal seam of the middle-lower Jurassic Yan ′an Formation in J148 area of Dongsheng gas field is systematically studied from the perspectives of geological structure, hydrogeology and coal gasific
Externí odkaz:
https://doaj.org/article/87f0c786603b482c984f6c85b59eda8d
Autor:
Xiongwei Sun, Hongya Wang, Bin Gong, Heng Zhao, Haoqiang Wu, Nan Wu, Wei Sun, Shizhao Zhang, Ke Jiang
Publikováno v:
Energies, Vol 17, Iss 22, p 5659 (2024)
Injecting CO2 into coal seams to enhance coal bed methane (ECBM) recovery has been identified as a viable method for increasing methane extraction. This process also has significant potential for sequestering large volumes of CO2, thereby reducing th
Externí odkaz:
https://doaj.org/article/b88e5e56ce96434a98ce8b7e87e98845
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
In this study, we conducted indoor temporary plugging and diverting fracturing (TPDF) experiments on samples of natural deep and shallow coal seams using a small-scale true triaxial fracturing simulation system. By integrating high-precision CT scann
Externí odkaz:
https://doaj.org/article/0ec862c9248a4f4fb19bf381c6e79482
Publikováno v:
Meitan kexue jishu, Vol 51, Iss S2, Pp 50-59 (2023)
In the process of deep mining, the geological type of the mine is complicated. Under the condition of “three heights and one disturbance”, it is easy to cause coal and gas outburst and other coal and rock dynamic disasters near the hidden structu
Externí odkaz:
https://doaj.org/article/6c3b8dbbac654906a1d2096e6c7195af
Publikováno v:
Meikuang Anquan, Vol 54, Iss 8, Pp 33-38 (2023)
In order to efficiently extract gas in advance before the deep coal seam mining and ensure the safe mining of the deep coal seam, the L-shaped horizontal well drilling technology is one of the main methods of surface gas drainage. There are many diff
Externí odkaz:
https://doaj.org/article/819cb420649947138eadb4b2eb132ec1
Autor:
ZHANG Zijun, LI Zheng
Publikováno v:
Meikuang Anquan, Vol 54, Iss 8, Pp 52-57 (2023)
In the mining process, the shallow buried deep coal seam working face is more likely to produce cracks connected with the ground due to the influence of mining, which leads to the increase of air leakage and oxygen supply in goaf and the increase of
Externí odkaz:
https://doaj.org/article/f3873b9ffb0e4657aedc2bfb06dab1e1
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
Targeting the problem of a small amount of fluid accumulation in deep coal seam gas (CSG) wells during flowing production stage, the evaporation drainage method is proposed to discharge the liquid accumulation. Based on the Dalton evaporation model a
Externí odkaz:
https://doaj.org/article/7b10dc8a14a2484fad1c26e4de429c17
Publikováno v:
Meikuang Anquan, Vol 54, Iss 4, Pp 194-202 (2023)
This paper takes Taigemiao Mining Area in the middle and upper reaches of the Yellow River Basin as the research object, analyzes the relationship between the spatial structure of water-bearing（ｉｓｏｌａｔｅｄ） layer and the development
Externí odkaz:
https://doaj.org/article/7382b4729e73418c9a97d78d4dd69227
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