摘要
为了确定煤层水力压裂增透的影响范围,根据水力压裂原理,在分析煤层水力裂缝几何形态和滤失系数的基础上,以连续性方程为基础构建了煤层水力压裂增透影响范围理论模型,然后通过五阳煤矿井下水力压裂生产实践进行了验证。结果表明:模型计算结果与生产实践基本一致,五阳煤矿水力压裂增透的影响范围为20m,水力压裂钻孔间距以15m为宜。
In order to determine an influence scope of the seam hydraulic fracturing and permeability improvement, according to the hydraulic fracturing principle, based on the analysis on the hydraulic cracking geometry of the seam and the filtration lost coefficient, a continuity equation as a base was applied to establish a theoretical model of seam hydraulic fracturing and permeability improved influence scope. Verifications were conducted with the practices on the hydraulic fracturing operations in Wuyang Mine. The results showed that the model calculation results and the production practices were the same basically, the influence scope of the hydraulic fracturing and permeability improvement in Wuyang Mine was 20m and the space between the hydraulic fracturing boreholes was 15 m perfectively.
出处
《煤炭工程》
北大核心
2014年第6期88-90,95,共4页
Coal Engineering
基金
国家自然科学基金资助项目(51174157)
陕西省教育厅科研计划项目资助(2013JK0863)
中国博士后科学基金资助项目(2013M542365)
关键词
煤层
水力压裂
增透范围
瓦斯流量
seam
hydraulic fracturing
permeability improved scope
gas flow
作者简介
徐刚（1981-），男，河南南阳人，博士，讲师，主要从事煤与瓦斯共采方面的教学和研究工作，E—mail：xugang25193@126．com。
