煤炭与化工2026，Vol.49Issue(5)：30-33,125,5.DOI:10.19286/j.cnki.cci.2026.05.006
石圪台矿坚硬顶板短钻孔分段水力压裂技术实践
Practice of short borehole segmented hydraulic fracturing technology for hard roof in Shigetai Mine
何雷省 1曹国银 1朱继周1
作者信息
- 1. 国家能源集团神东煤炭集团公司石圪台煤矿,陕西榆林 719315
- 折叠
摘要
Abstract
To ensure the stability of the mining gateway in No.31 coal seam of Shigetai Mine,a study on pressure relief and roadway protection technology was carried out in No.31104 main transport gateway.By comparing the advantages and disadvantages of different pressure relief methods,the segmented borehole hydraulic fracturing and segmented roof cutting method was selected.On the basis of analyzing the roof cutting mechanism,the key parameters such as roof cutting height,angle,water injection pressure and borehole spacing were calculated and determined.Two types of boreholes,A and B,were arranged in the main transport gateway,and fracturing was performed every 3 meters with the fracturing time of 30 minutes.The application showed that after hydraulic fracturing,the integrity of the roof surrounding rock was greatly reduced,the deformation speed of the roadway was significantly slowed down,and the deformation amount was reduced by more than 70％,achieving an ideal fracturing effect.关键词
坚硬顶板/短钻孔/分段压裂/钻孔窥视Key words
hard roof/short borehole/staged fracturing/drilling peep分类
矿业与冶金引用本文复制引用
何雷省,曹国银,朱继周..石圪台矿坚硬顶板短钻孔分段水力压裂技术实践[J].煤炭与化工,2026,49(5):30-33,125,5.
