基于水力压裂措施的高突煤层卸压增透技术研究

Research on Pressure Relief and Anti-Reflection Technology in Outburst Coal Seam Based on Hydraulic Fracturing Measures

以平煤十三矿为试验矿井,对水力压裂增透效果进行现场考察,试验结果表明,压裂孔两侧30 m范围内煤体都受到不同程度的影响,地应力得到释放,压裂后瓦斯抽放浓度和流量得到极大提高,抽放瓦斯浓度提高15倍左右,单位时间抽放纯量提高40多倍,水力压裂效果显著。

With 13^# Mine of Pingdingshan Coal Mine Group as an example, site inspection was carried out on the effect of antireflection by hydraulic fracturing in this paper. The results showed that the coal body on both sides of the fracturing hole within the scope of 30 m was affected by different degrees, geostress was released, gas drainage concentration and flow were increase greatly with the gas drainage concentration increasing by about 15 times, scalar quantity rose by 40 times per unit of time and the effect of hydraulic fracturing was remarkable.