摘要
为防止揭煤过程中突出事故的发生,实现安全快速揭煤,对高压注水压裂消突技术进行了研究。选取压裂参数,利用压裂设备,对高突煤层煤体实施压裂。现场实践表明,高压注水压裂技术可将煤(岩)体内部微裂隙扩展并使之沟通,使煤体瓦斯潜能及弹性能得到有效释放,煤层透气性增加,结合抽放技术使煤体瓦斯压力及瓦斯含量降低,减弱或消除煤体突出危险性。该技术保证了矿井安全快速揭煤,为突出煤层区域消突提供了一项切实可行的新措施。
In order to prevent outburst accidents in process of coal uncovering and achieve the goal of uncovering coal quickly and safely,this paper researched on outburst prevention technology through hydraulic fracturing in high outburst seam. Hydraulic fracturing parameters were selected, and coal body in high outburst seam was fractured by using fracturing equipment. Field test indicates that after adopting hydraulic fracturing technology,tiny fissure of coal body wil be propagated and connected,gas potency and elastic energy will be dissipated effectively,gas pressure and gas content in coal seam will be fallen, gas permeability of coal seam will be increased, gas pressure and gas content goes down coordinating with drilling gas, outburst risk will be weakened or eliminated. Hydraulic fracturing technology ensures coal uncovering quickly and safely,it is a good outburst-prevention measure for the area with outburst danger.
出处
《中州煤炭》
2009年第5期20-21,24,共3页
Zhongzhou Coal
关键词
突出煤层
水力压裂
快速揭煤
消突
高压注水
high outburst coal seam
hydraulic fracturing
quickly coal uncovering
outburst elimination
high pressure water injection
