摘要
水力压裂是一种重要的岩层卸压方法,其钻孔的布置参数对压裂效果有着直接的影响。基于弹性力学理论,分析了不同钻孔方位角时钻孔的开裂压力的变化规律,理论分析表明,钻孔的方位角为70°、倾角在17°~21°时压裂的效果最好。该结果可为现场钻孔布置提供一定的参考。
Hydraulic fracturing is an important method of rock pressure relief,and its borehole layout parameters have a direct impact on the fracturing effect.Based on the theory of elastic mechanics,the variation law of borehole cracking pressure at different azimuth angles is analyzed.The theoretical analysis shows that the hydraulic fracturing effect is the best when the azimuth angle of the borehole is 70°and the inclination angle is 17°to 21°.The research results can provide a certain reference for the layout of hydraulic fracturing boreholes in the field.
作者
边相君
BIAN Xiangjun(Shanxi Energy Saving Center,Taiyuan 030000,China)
出处
《陕西煤炭》
2021年第3期131-134,169,共5页
Shaanxi Coal
关键词
水力压裂
钻孔布置
方位角
布置参数
hydraulic fracturing
borehole layout
azimuth
layout parameters
