河北地质大学学报2025，Vol.48Issue(4)：28-36,9.DOI:10.13937/j.cnki.hbdzdxxb.2025.04.004
煤矿采空区附近油气井稳定性保障防治关键技术研究
Research on Key Technologies for Stability Guarantee and Prevention of Oil and Gas Wells near Coal Mine Goaf Areas
王小勇 1杨文 1马伟 1张慧峰 1王明 2李志强3
作者信息
- 1. 陕西小保当矿业有限公司,陕西 榆林 719302
- 2. 陕西省煤层气开发利用有限公司,陕西 咸阳 713509
- 3. 中交河北土木工程有限公司,河北 石家庄 051433
- 折叠
摘要
Abstract
Abstrct:The main method to solve the mutual influence of mining in the overlapping area of coal and oil mining rights is to set up coal pillars before mining.The method of retaining coal pillars will result in a significant waste of resources.This article takes the 132201 working face of Shaanxi Xiaobaodang Mining Company's No.1 coal mine as an example,and uses MIDAS numerical simulation software to conduct a three-dimensional geological modeling of the intersection between the working face and the oil well,as well as the treatment measures.The governance measures adopt a joint intervention method of above and below the well,in which presplitting drilling is used underground to destroy coal seam roof integrity and change the stress distribution of the roof,and protective walls are used above the well to reduce the shear and tensile effects of surface movement on the oil and gas well combination during the mining process of the working face.The underground working face is located near the oil well,with a vertical upward presplitting drilling hole of 70 m,and a 180 m long protective wall is used on the ground.The numerical simulation results show that the joint management measures of above and below the well have reduced the displacement and internal forces of the oil well to a safe range,and the casing of the oil and gas well is intact and not affected by the mining of the working face,achieving safe mining of coal and oil and gas.This study can provide new ideas and methods for similar engineering problems.关键词
煤气同采/数值模拟/井上井下联合治理Key words
simultaneous extraction of gas/numerical simulation/joint management of above and below the well分类
天文与地球科学引用本文复制引用
王小勇,杨文,马伟,张慧峰,王明,李志强..煤矿采空区附近油气井稳定性保障防治关键技术研究[J].河北地质大学学报,2025,48(4):28-36,9.
