水平井分段压裂簇间距优化有限元模拟分析

摘要

The compressive stress induced by the effect of the fracturing fluid on the rock around the fracture in the process of the hydraulic fracturing are analyzed in this paper,the influence range and changing trend of the stress are provided as well by using the finite element method,which is based on rock mechanical properties and the characteristics of earth stress. The results provide the suggestion for the cluster spacing optimization of the horizontal well fracturing.%本文根据延长陆相页岩气C1井储层的岩石力学性质及地应力特征，利用有限元方法，分析了压裂过程中压裂液对裂缝周围地层岩石产生的压应力，并给出了压应力的影响范围和变化趋势。得到的结论为水平井压裂簇间距优化设计提供了参考。