Research on gas extraction technology of borehole instead of roadway

QIAO Wei

doi:10.19835/j.issn.1008-4495.20220874

Mining Safety & Environmental Protection > 2024 > 51(3): 92-96, 106. > DOI: 10.19835/j.issn.1008-4495.20220874

QIAO Wei. Research on gas extraction technology of borehole instead of roadway[J]. Mining Safety & Environmental Protection, 2024, 51(3): 92-96, 106. DOI: 10.19835/j.issn.1008-4495.20220874

Citation:

QIAO Wei. Research on gas extraction technology of borehole instead of roadway[J]. Mining Safety & Environmental Protection, 2024, 51(3): 92-96, 106. DOI: 10.19835/j.issn.1008-4495.20220874

Citation:

QIAO Wei. Research on gas extraction technology of borehole instead of roadway[J]. Mining Safety & Environmental Protection, 2024, 51(3): 92-96, 106. DOI: 10.19835/j.issn.1008-4495.20220874

PDF (1385 KB)

Research on gas extraction technology of borehole instead of roadway

QIAO Wei^{1, 2,}

1.
CCTEG Chongqing Research Institute, Chongqing 400037, China
2.
State Key Laboratory of Coal Mine Disaster Prevention and Control, Chongqing 400037, China

More Information

Received Date: August 28, 2022
Revised Date: October 18, 2023
Available Online: July 01, 2024

Graphical Abstract

Abstract

Abstract

In order to solve the gas problem in the upper corner of 12214 working face in Xinyuan Coal Mine, the roof lithology of the working face, the range of roof fissure zone and its influence on gas flow and accumulation in goaf were investigated. The source of gas emission was analyzed and a group of 7 high-level directional long boreholes in different strata were determined. These were to compare the pumping effect with that of the first high drainage roadway. The results show that after five months of mining observation, the average gas concentration of high-level directional long borehole group and high drainage roadway is 17.24% and 21.32% respectively. The amount of pure gas extraction is 3.71 m ³/min and 3.37 m ³/min, respectively. The average gas concentration in the upper corner is 0.42% and 0.49% respectively. The results show that the influence range of high-level directional long borehole in roof is wider than that of high drainage roadway. The pure gas extraction increased by 10.09%. The construction cost is lower than the high drainage roadway, and the construction efficiency is higher. It greatly alleviates the restriction of high drainage roadway driving speed on coal face putting into production, thus proving that the high-level directional long borehole in the roof can effectively replace the high drainage roadway.

FullText(HTML)

References (16)

References

[1]	国家矿山安全监察局. 全国煤矿瓦斯和冲击地压重大灾害防治现场会[EB/OL]. https://www.chinamine-safety.gov.cn/xw/mkaqjcxw/202208/t20220812_420013.shtml.2022.8.12.
[2]	钱鸣高, 缪协兴, 许家林. 岩层控制中的关键层理论研究[J]. 煤炭学报, 1996, 21(3): 2-7. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB603.000.htm QIAN Minggao, MIAO Xiexing, XU Jialin. Study on key stratum theory in strata control[J]. Journal of China Coal Society, 1996, 21(3): 2-7. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB603.000.htm
[3]	郭明功, 王彬彬, 刘思博, 等. 深部缓倾斜煤层"以孔代巷" 抽采技术[J]. 西安科技大学学报, 2022, 42(6): 1071-1079. https://www.cnki.com.cn/Article/CJFDTOTAL-XKXB202206003.htm GUO Minggong, WANG Binbin, LIU Sibo, et al. Drainage technology of "replacing roadway with borehole" in deep gently-inclined coal seam[J]. Journal of Xi'an University of Science and Technology, 2022, 42(6): 1071-1079. https://www.cnki.com.cn/Article/CJFDTOTAL-XKXB202206003.htm
[4]	谢和平, 周宏伟, 薛东杰, 等. 我国煤与瓦斯共采: 理论、技术与工程[J]. 煤炭学报, 2014, 39(8): 1391-1397. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201408003.htm XIE Heping, ZHOU Hongwei, XUE Dongjie, et al. Theory, technology and engineering of simultaneous exploitation of coal and gas in China[J]. Journal of China Coal Society, 2014, 39(8): 1391-1397. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201408003.htm
[5]	陶云奇, 张剑钊, 郭明功, 等. 采动卸压瓦斯抽采以孔代巷技术研究与工程实践[J]. 矿业安全与环保, 2022, 49(5): 43-48. https://www.zhangqiaokeyan.com/academic-journal-cn_mining-safety-environmental-protection_thesis/02012100050244.html TAO Yunqi, ZHANG Jianzhao, GUO Minggong, et al. Research and engineering practice of mining-induced pressure relief gas extraction of replacing roadway with borehole technology[J]. Mining Safety & Environmental Protection, 2022, 49(5): 43-48. https://www.zhangqiaokeyan.com/academic-journal-cn_mining-safety-environmental-protection_thesis/02012100050244.html
[6]	魏宗勇, 李树刚, 林海飞, 等. 大采高综采覆岩裂隙演化特征三维实验研究[J]. 西安科技大学学报, 2020, 40(4): 589-598. https://www.cnki.com.cn/Article/CJFDTOTAL-XKXB202004005.htm WEI Zongyong, LI Shugang, LIN Haifei, et al. Three-dimensional experimental study on evolution characteristics of overburden fractures in fully mechanized mining with large mining height[J]. Journal of Xi'an University of Science and Technology, 2020, 40(4): 589-598. https://www.cnki.com.cn/Article/CJFDTOTAL-XKXB202004005.htm
[7]	刘志高, 张守宝, 皇甫龙. 腾达煤矿倾斜煤层覆岩运移规律及"上三带" 高度的确定[J]. 采矿与岩层控制工程学报, 2022, 4(3): 70-79. https://www.cnki.com.cn/Article/CJFDTOTAL-MKKC202203006.htm LIU Zhigao, ZHANG Shoubao, HUANGFU Long. Overburden migration law of inclined coal seam and determination of "upper three zones" height in Tengda Coal Mine[J]. Journal of Mining and Strata Control Engineering, 2022, 4(3): 70-79. https://www.cnki.com.cn/Article/CJFDTOTAL-MKKC202203006.htm
[8]	何清波, 张文进, 王绪友, 等. 倾斜厚煤层采动覆岩裂隙演化规律数值模拟[J]. 西安科技大学学报, 2022, 42(6): 1080-1087. https://www.cnki.com.cn/Article/CJFDTOTAL-XKXB202206004.htm HE Qingbo, ZHANG Wenjin, WANG Xuyou, et al. Numerical simulation on fracture field evolution law of mining-induced overburden in inclined thick coal seam[J]. Journal of Xi'an University of Science and Technology, 2022, 42(6): 1080-1087. https://www.cnki.com.cn/Article/CJFDTOTAL-XKXB202206004.htm
[9]	周世宁, 林柏泉. 煤层瓦斯赋存与流动理论[M]. 北京: 煤炭工业出版社, 1999.
[10]	方俊, 石智军, 李泉新, 等. 顶板高位定向大直径长钻孔钻进技术与装备[J]. 矿业研究与开发, 2015, 35(7): 92-97. https://www.cnki.com.cn/Article/CJFDTOTAL-KYYK201507022.htm FANG Jun, SHI Zhijun, LI Quanxin, et al. Drilling technology and equipments on directional high level and long borehole with large diameter in roof[J]. Mining Research and Development, 2015, 35(7): 92-97. https://www.cnki.com.cn/Article/CJFDTOTAL-KYYK201507022.htm
[11]	李泉新, 石智军, 史海岐. 煤矿井下定向钻进工艺技术的应用[J]. 煤田地质与勘探, 2014, 42(2): 85-88. https://www.cnki.com.cn/Article/CJFDTOTAL-MDKT201402020.htm LI Quanxin, SHI Zhijun, SHI Haiqi. The application of directional drilling technology in coal mine[J]. Coal Geology & Exploration, 2014, 42(2): 85-88. https://www.cnki.com.cn/Article/CJFDTOTAL-MDKT201402020.htm
[12]	孙荣军, 石智军, 吴璋. 煤层顶板瓦斯抽放水平长钻孔的设计与应用[J]. 煤炭科学技术, 2008, 36(1): 38-41. https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ200801013.htm SUN Rongjun, SHI Zhijun, WU Zhang. Design and application of horizontal long borehole for gas drainage in seam roof[J]. Coal Science and Technology, 2008, 36(1): 38-41. https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ200801013.htm
[13]	肖鹏, 吴铭川, 双海清, 等. 煤系正断层带影响下的煤层瓦斯赋存规律[J]. 煤田地质与勘探, 2022, 50(10): 16-25. https://www.cnki.com.cn/Article/CJFDTOTAL-MDKT202210002.htm XIAO Peng, WU Mingchuan, SHUANG Haiqing, et al. Occurrence law of coal seam gas under influence of normal fault zone in coal measures[J]. Coal Geology & Exploration, 2022, 50(10): 16-25. https://www.cnki.com.cn/Article/CJFDTOTAL-MDKT202210002.htm
[14]	曹始友, 董方营, 成文举, 等. 并行电法探测煤层顶板"两带" 发育高度[J]. 矿业安全与环保, 2022, 49(3): 94-100. https://www.zhangqiaokeyan.com/academic-journal-cn_mining-safety-environmental-protection_thesis/0201299427705.html CAO Shiyou, DONG Fangying, CHENG Wenju, et al. Study on the development height of "two zones" of coal seam roof based on parallel electric method[J]. Mining Safety & Environmental Protection, 2022, 49(3): 94-100. https://www.zhangqiaokeyan.com/academic-journal-cn_mining-safety-environmental-protection_thesis/0201299427705.html
[15]	张峰, 车禹恒, 题正义, 等. 综放工作面垮落带高度测定方法研究[J]. 矿业安全与环保, 2021, 48(2): 49-54. doi: 10.19835/j.issn.1008-4495.2021.02.010 ZHANG Feng, CHE Yuheng, TI Zhengyi, et al. Study on the determination method of the height of caving zone in fully mechanized caving face[J]. Mining Safety & Environmental Protection, 2021, 48(2): 49-54. doi: 10.19835/j.issn.1008-4495.2021.02.010
[16]	姚尚文. 改进抽放方法提高瓦斯抽放效果[J]. 煤炭学报, 2006, 31(6): 721-726. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB200606005.htm YAO Shangwen. Improving method and increasing effect of gas drainage[J]. Journal of China Coal Society, 2006, 31(6): 721-726. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB200606005.htm

[1]	TAO Yunqi, ZHANG Jianzhao, GUO Minggong, YU Hong, PAN Renjie. Research and engineering practice of mining-induced pressure relief gas extraction of replacing roadway with borehole technology[J]. Mining Safety & Environmental Protection, 2022, 49(5): 43-48. DOI: 10.19835/j.issn.1008-4495.2022.05.008
[2]	ZHANG Yulei. Study on directional long borehole extraction technology in roof of coal seam group with high gas content[J]. Mining Safety & Environmental Protection, 2022, 49(1): 59-64. DOI: 10.19835/j.issn.1008-4495.2022.01.010
[3]	JIA Xiaoliang. Research on gas drainage technology by high level directional long drilling to replace drainage gateway in Laochang mining area[J]. Mining Safety & Environmental Protection, 2021, 48(5): 103-107. DOI: 10.19835/j.issn.1008-4495.2021.05.020
[4]	WANG Hongmei, JIN Zhupeng, ZHAO Shanyou, LI Junzhi, ZHAI Guangshun, HOU Fengjun. Study on the influence of the extraction rate of highly-located drainage roadway on compound disaster prevention in goaf[J]. Mining Safety & Environmental Protection, 2021, 48(2): 44-48,54. DOI: 10.19835/j.issn.1008-4495.2021.02.009
[5]	WANG Yong, MA Jinkui. Gas Drainage Technology by Directional Long Borehole in Roof to Replace Gateway[J]. Mining Safety & Environmental Protection, 2019, 46(5): 95-98,103.
[6]	LIU Xiubao, PANG Jinlun, FAN Yanyang, LI Xinjian. Research and Application of Gas Extraction Technology in Goaf by Separate Sources in Roof Strike High-level Long Borehole[J]. Mining Safety & Environmental Protection, 2019, 46(5): 70-74.
[7]	CHEN Gonghua, WEI Zeyun, LIANG Daofu, LI Xijian, LI Ming, WANG Kai. Gas Drainage by High Position Directional Long Borehole in Close Distance Coal Seam Group[J]. Mining Safety & Environmental Protection, 2019, 46(5): 66-69,74.
[8]	ZHOU Xihua, ZHOU Xiaomin, GUO Xiaoyang. The Key Parameters Optimization of High Level Gas Drainage Roadway in Extra Thick and High-gas Coal Seams[J]. Mining Safety & Environmental Protection, 2018, 45(6): 73-78.
[9]	ZHENG Jiyu, WANG Gongzhong, HAN Jian. Research on the Parameters and Abnormal Characteristics of Gas Drainage in High Level Drainage Roadway[J]. Mining Safety & Environmental Protection, 2018, 45(3): 76-79.
[10]	HU Liangping, SUN Haitao, YANG Huiming, ZHANG Di. Experimental Study of Gas Drainage Effect by Roof Long Directional Boreholes in Xinji No 2. Mine[J]. Mining Safety & Environmental Protection, 2017, 44(2): 45-48,69.

Cited By

Cited by

Periodical cited type(2)

1.	高小峰，梁文勖. 近距离煤层瓦斯异常区域采空区瓦斯综合治理研究. 煤. 2025(01): 59-61+70 .
2.	宋小伟. 采空区千米定向长钻孔瓦斯抽采布置参数优化. 煤. 2025(02): 63-68 .

Other cited types(0)

Get Citation

PDF

XML

Article views (100) PDF downloads (25) Cited by(2)

Turn off MathJax

Article Contents

Abstract

References

Research on gas extraction technology of borehole instead of roadway