Research on the Effective Extraction radius of Directional Long Boreholes for Coalbed Methane Extraction Based on Gas Extraction Quantity Measurement

Yifan Wang

doi:10.54097/3f33mb91

Authors

Yifan Wang

DOI:

https://doi.org/10.54097/3f33mb91

Keywords:

Coal Mine; Directional Long Drilling; Coalbed Methane Utilization; Extraction Radius; Gas Extraction Volume; Sampling Meets the Standard.

Abstract

In order to solve the problems of low utilization rate of coalbed methane and difficult gas control in the working face caused by the difficulty of ordinary drilling construction for gas extraction in a high gas mine, a study was conducted on the effective extraction of coalbed methane using directional long drilling in the 2212 working face of a certain coal mine. Through on-site experimental investigation and theoretical analysis, the effective extraction radius of directional long boreholes in the working face was calculated under different pre extraction times, providing a scientific basis for the rational design of directional long boreholes for coalbed methane extraction.

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References

Zhang Zhigang, Huo Chunxiu. Research progress on coalbed methane utilization technology in coal mining areas [J]. Mining Safety and Environmental Protection, 2022, 49 (04): 59-64.

Sun Dongling, Liang Yunpei, Huang Xuchao, et al. Progress and prospects of coalbed methane development and utilization in large dip angle multi coal group coal mine areas in Xinjiang [J]. Coal Science and Technology, 2023,51 (S1): 162-172.

Su Xianbo, Song Jinxing, Guo Hongyu, et al. Mechanism and key technologies for increasing production of coal mine gas extraction [J]. Coal Science and Technology, 2020,48 (12): 1-30.

Qin Hengjie, Wei Jianping, Li Donghao, et al. Research on the mechanism of ground stress in coal and gas outburst processes [J]. Journal of China University of Mining & Technology, 2021,50 (05): 933-942.

Zhang Wenhao, He Zhihong, Kong Jingyu, et al. Analysis of influencing factors on gas extraction efficiency in coal seam boreholes [J]. China Mining Magazine, 2023,32 (03): 98-102.

Chen Yuexia, Chu Tingxiang, Chen Peng, et al. Quantitative study of three-dimensional numerical simulation for optimizing the spacing of gas extraction boreholes [J]. Coal Geology & Exploration, 2021,49 (03): 78-84+94.

Liu Dianping, Ma Wenwei. Research on the effective extraction radius measurement method for gas extraction boreholes [J]. Journal of Mine Automation, 2020,46 (11): 59-64.

Ma Zan, Chen Dongdong, Jie Xingxing, et al. Research on gas extraction completion technology of negative angle directional long boreholes [J]. Coal Geology & Exploration, 2021,49 (03): 62-68.

Jia Bingyi, Chen Jian, Fang Qinyue. Exploration of efficient gas extraction technology in deep coal seams under complex geological conditions [J]. China Mining Magazine, 2023,32 (08): 89-94.

Wang Zhaofeng, Xi Jie, Chen Jinsheng, et al. Study on the timeliness of multi-purpose gas extraction by drilling through layers in the bottom rock roadway [J]. Coal Science and Technology, 2021,49 (01): 248-256.

Yao Yanjun, Wang Yi, Wu Yin. Research on the determination of extraction radius technology based on drilling gas flow rate and coal seam gas content [J]. China Mining Magazine, 2020, 29 (12): 116-120+128.