煤质技术2024，Vol.39Issue(2)：61-72,12.DOI:10.3969/j.issn.1007-7677.2024.02.006
鲁班山北矿15采区瓦斯赋存特征及地面预抽采部署
Gas occurrence characteristics and gas pre-drainage on ground in the 15th mining area of Lubanshan North Mine
摘要
Abstract
Pre-drainage of gas on the ground can improve the efficient and safe mining of coal,and achieve effective utilization of gas resources.Based on the characteristics of gas occurrence in the mining area,gas pre extraction wells can be deployed on the ground to assist in the efficient and coordinated development of regional coal and gas.Com-bined with the coal seam distribution,reservoir physical properties and gas test results of the 15 mining area of Lu-banshan North Mine in southern Sichuan,the influencing factors of gas occurrence were analyzed from the aspects of preservation conditions and resource conditions.The gas resources of the main coal seams in the 15 mining areas were estimated using the volume method.According to the coal mining plan of the 15 mining areas,combined with the mine gas geological characteristics and topographic and landform characteristics,the replacement extraction areas were divided and the drainage well locations were optimized.The optimization results show that working faces 1518 and 1538 in mining area 15 were preliminary test areas,with No.2 and 3 coal seams(groups)and No.7 and 8 coal seams(groups)as the main ones.The vertical well+directional well combination model was adopted.It was prefera-ble to form an irregular cluster well pattern.The long side direction of the rectangular well pattern was parallel to the direction of the fractures,and the well spacing was 200～250 m.关键词
瓦斯/赋存特征/地面预抽采/鲁班山北矿/体积法/煤层展布情况/储层物性特征Key words
gas/existence characteristics/ground pre extraction/Luban mountain north mine/volume method/the distribution of coal seams/reservoir physical characteristics分类
矿山工程引用本文复制引用
谭远兵,张志军,石鑫,陈志浩,周瑞琦..鲁班山北矿15采区瓦斯赋存特征及地面预抽采部署[J].煤质技术,2024,39(2):61-72,12.基金项目
四川省能源地质调查研究所科技项目资助项目(2023510101002069) （2023510101002069）
四川省财政资金资助项目(SCIGS-CZDXM-2023004) （SCIGS-CZDXM-2023004）
