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| Research and application of geological modeling based on gas extrac-tion directional drilling |
| Wang Xinmiao 1, 2 |
| 1. Xi 'an Research Institute ( Group ) Co., Ltd., Shaanxi Xi 'an 710077, China ; 2. Xi 'an Coal Science Transparent Geological Technology Co., Ltd., Xianyang, Shaanxi 712044, China |
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Abstract Aiming at the problem of low utilization of geological information revealed by gas drainage directional drilling, taking No.3 drilling field in No.3 mining area of Shanxi Tiandi Wangpo Coal Mine as the research object, the geological modeling research and model application analysis based on gas drainage directional drilling were carried out. The high-precision geological model and gas content model of the drilling area are constructed by combining the basic information of the mine, the test information of the sealed coring gas content of the borehole, the directional drilling trajectory and the exposed lithology information. According to the geological model and gas content model, the drilling construction quality, coal seam spatial fluctuation, roadway expected profile and residual gas content in drilling field are analyzed. The results show that : 1) The trajectory of No.6 borehole is basically in the middle of the coal seam, and the deviation of the borehole from the central axis of the coal seam is 0.31 m, and the construction quality is good. 2) The drilling area as a whole is a wide and gentle monoclinic structure, and there is a small syncline structure in the local area ; 3) After nearly 500 days of extraction, the residual gas content of No.3 drilling field is 2 507 306.05 m3, and the average gas concentration is expected to be 4.91 m3/t.
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| 1 ] 高楠楠. 千米钻机在煤矿瓦斯抽采中的应用分析[ J ]. 西部探矿工程,2023,35( 12 ):84 - 87.
[ 2 ] 庞乃勇. 定向钻进技术在煤矿地质防治水工作中的应用[ J ]. 煤矿安全,2018,49( S1 ):76 - 80.
[ 3 ] 程建远,陆自清,蒋必辞,等. 煤矿巷道快速掘进的“长掘长探”技术[ J ]. 煤炭学报,2022,47( 1 ):404 - 412.
[ 4 ] 石智军,董书宁,姚宁平,等. 煤矿井下近水平随钻测量定向钻进技术与装备[ J ]. 煤炭科学技术,2013,41( 3 ):1 - 6.
[ 5 ] 代精宇. 九龙矿15247S工作面瓦斯综合治理技术应用研究[ J ]. 煤炭与化工,2021,44( 12 ):103 - 108.
[ 6 ] 罗明坤,齐嘉义,荣 海. 基于GOCAD方法的漳村煤矿三维地质建模[ J ]. 当代化工研究,2022( 9 ):78 - 80.
[ 7 ] 刘同庆,宋玉龙,牟 义,等. 基于Petrel的煤顶板三维地质模型及地应力模型构建[ J ]. 煤矿安全,2023,54( 5 ):100 - 105.
[ 8 ] 王新苗,韩保山,宋 焘,等. 智能开采工作面三维地质模型构建及误差分析[ J ]. 煤田地质与勘探,2021,49( 2 ):93 - 101.
[ 9 ] 张平松,李 洁,李圣林,等. 三维地质建模在煤矿地质可视化中的应用分析[ J ]. 科学技术与工程,2022,22( 5 ):1 725 - 1 740.
[ 10 ] 周 韬,杨 洋. 特厚煤层综放工作面地面抽采钻孔一孔多用方案研究[ J ]. 煤炭技术,2021,40( 3 ):19 - 22.
[ 11 ] 王俊红,高 宏,杨宏伟,等. 成庄矿瓦斯抽采钻孔“一孔多用”技术研究[ J ]. 煤炭技术,2021,40( 8 ):147 - 150.
[ 12 ] 吴刘洋,罗 虎. 煤层底板定向超前探查钻孔“一孔多用”技术研究[ J ]. 中国煤炭工业,2020( 11 ):60 - 61.
[ 13 ] 杨建中. 顶板探放水钻孔一孔多用技术分析[ J ]. 当代化工研究,2019( 15 ):25 - 26.
[ 14 ] 牛润晴,肖东辉,刘建华. 平滑钻进一孔多用技术在屯兰矿的应用[ J ]. 智能矿山,2022,3( 2 ):66 - 69. |
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