陕西煤炭2025，Vol.44Issue(12)：9-19,31,12.DOI:10.20120/j.cnki.issn.1671-749x.2025.1202
煤层顶板地面水力压裂微地震监测技术应用研究
Ground hydraulic fracturing microseismic monitoring technology of coal seam roof
ZHOU Hongwei 1YANG Guangyu 1CHEN Xuehui 1SI Lei1
作者信息
- 1. CCTEG Mining Research Institute Co.,Ltd.,Beijing 100013,China||CCTEG(Xi'an)Mining Engineering Technology Co.,Ltd.,Xi'an 710000,China
- 折叠
摘要
Abstract
This study focuses on the 3-1302 working face of a coal mine.Aiming at the problems of rock burst and mine seismic control,the ground microseismic monitoring technology is used to systematically monitor and evaluate the ground hy-draulic fracturing operation.By constructing an observation system composed of 36 three-component geophones,combined with fracturing microseismic real-time monitoring and analysis software and related hardware equipment,real-time monitoring and data acquisition of fracturing process are realized.In the data processing stage,a variety of technical means are used to establish the velocity model,denoise,pick up the initial arrival and position microseismic events,which effectively improves the accuracy and reliability of the monitoring data.The results show that the technology successfully monitored microseismic events induced by small-scale hydraulic fracturing in underground boreholes with a buried depth of about 740 m.Among them,8 sections of HQH-302-01 wellwerefractured,and520 hydraulicfracturingeventsand40 visibleeventsweremoni-tored.HQH-302-02 well fractured 7 sections,and 478 hydraulic fracturing events and 23 visible events were monitored.HQH-302-03 well was fractured in 7 sections,and 351 hydraulic fracturing events and 28 visible events were monitored.After analysis,the roof fracturing range of each section of each well has reached the design expectation,the hydraulic frac-ture network is well developed,and the main fracture expansion direction is stable.This shows that the ground microseismic monitoring technology can accurately evaluate the fracturing effect,providing strong support for the roof management of coal mining operations,and effectively ensuring safe production.关键词
煤层顶板/地面水力压裂/地面微地震监测/裂缝扩展/事件定位/压裂效果评价Key words
coal seam roof/ground hydraulic fracturing/ground microseismic monitoring/crack propagation/event position/fracturing effect evaluation分类
矿业与冶金引用本文复制引用
ZHOU Hongwei,YANG Guangyu,CHEN Xuehui,SI Lei..煤层顶板地面水力压裂微地震监测技术应用研究[J].陕西煤炭,2025,44(12):9-19,31,12.
