• 中文核心期刊
  • 中国科技核心期刊
  • RCCSE中国核心学术期刊

深井特厚煤层水力压裂防冲参数与监测分析

张超超, 成云海, 田厚强, 王维德

张超超, 成云海, 田厚强, 王维德. 深井特厚煤层水力压裂防冲参数与监测分析[J]. 煤矿安全, 2016, 47(2): 166-169.
引用本文: 张超超, 成云海, 田厚强, 王维德. 深井特厚煤层水力压裂防冲参数与监测分析[J]. 煤矿安全, 2016, 47(2): 166-169.
ZHANG Chaochao, CHENG Yunhai, TIAN Houqiang, WANG Weide. Parameters and Monitoring Analysis of Hydraulic Fracture to Prevent Rock Burst in Deep and Extra-thick Coal Seam[J]. Safety in Coal Mines, 2016, 47(2): 166-169.
Citation: ZHANG Chaochao, CHENG Yunhai, TIAN Houqiang, WANG Weide. Parameters and Monitoring Analysis of Hydraulic Fracture to Prevent Rock Burst in Deep and Extra-thick Coal Seam[J]. Safety in Coal Mines, 2016, 47(2): 166-169.

深井特厚煤层水力压裂防冲参数与监测分析

Parameters and Monitoring Analysis of Hydraulic Fracture to Prevent Rock Burst in Deep and Extra-thick Coal Seam

  • 摘要: 基于水力压裂防冲机理,以新巨龙煤矿1302N综放工作面为工程背景,运用RFPA数值模拟软件,得出压裂所需的的注水压力,同时根据冲击地压在线监测预警系统,得出压裂参数之间的关系,并由此确定水力压裂的具体参数。采用钻屑法、微震法监测防冲效果,监测结果显示:水力压裂后,煤粉钻屑量远低于发生冲击危险的极限煤粉量,微震事件显著减少、频次较低且波动相对较小;表明水力压裂技术起到了较好的防冲效果。
    Abstract: On the basis of mastering the mechanism of hydraulic fracture technology in preventing rock burst, water pressure required by the fracture is obtained through the application of RFPA numerical simulation software by taking fully mechanized caving face of New Julong 1302N as engineering background, meanwhile, according to the system of real time monitoring and measuring early warning of mine pressure, the relationship among the hydraulic fracture parameters is obtained, and thus specific parameters of hydraulic fracture are determined. We use the method of drilling bits and microseism to monitor the impact prevention effect. The monitored result shows that an amount of drillings of coal dust is far below a limit amount of coal dust which causes impact risk after hydraulic fracture, wherein microseism events are significantly reduced, the frequency is lower and fluctuation is relatively very small. The results of this experiment show that hydraulic fracture can effectively reduce the rock burst monitoring.
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  • 发布日期:  2016-02-19

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