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本研究的结果显示进行开采的水力压裂井周围的应力受两种截然不同程度的约束。在初始压裂期通过刺激井眼压力回升,可能导致初始压裂裂缝的扩展而不是重定向。另外,还观察到重复压裂或在井壁存在的微裂缝前进行适当的定向射孔有利于裂缝重定向。
The results of this study show that the stress around the hydraulic fracturing well that is being mined is constrained by two very different degrees. By stimulating borehole pressure recovery during the initial fracturing period, it is possible to cause an expansion of the initial fracturing fracture rather than redirection. In addition, it is also observed that repeated fracturing or proper directional perforation prior to the presence of micro-cracks in the borehole wall facilitates fracture redirection.