摘要
通过分析定向水力压裂的研究现状及作用机理,计算模拟确定压裂孔的最佳布孔位置和距离参数,在定向孔连线7~8 m的有效压裂位置布置压裂钻孔,增加孔间裂隙,达到煤层整体卸压增透的目的。运用计算模拟得出的结果在现场进行定向水力压裂应用,增透效果显著。
Based on the analysis of the present situation and the mechanism of the directional hydraulic fracturing, the optimal location of the drilling hole and the distance parameter, where the direction of the hole line 7-8 meters of effective fracturing location layout of the fracturing hole, to increase the gap between boreholes, so as to achieve the role of the whole pressure relief and permeability. The results of numerical simulation are applied to directional hydraulic fracturing in field, and the effect of permeability enhancement is remarkable.
出处
《煤炭技术》
北大核心
2017年第12期171-173,共3页
Coal Technology
关键词
瓦斯抽放
定向水力压裂
卸压增透
gas drainage
directional hydraulic fracturing
pressure relief and permeability increasing
