When a horizontal well is transversally fractured with multiple stages,initial crack can induce the secondary change of the wellbore stress,producing the induced stress field which has an influence on subsequent crack initiation.
水平井分段压裂时,形成的初始裂缝会诱发井筒周围应力分布二次改变,产生诱导应力场。 诱导应力场将会对后续裂缝起裂产生影响。
参考来源 - 水平井分段压裂破裂压力计算·2,447,543篇论文数据,部分数据来源于NoteExpress
With the theory of elasticity, a model of induced stress field is established for primary fracture and the analytic solution is achieved by semi - retro-solution method.
应用弹性力学理论,建立了油气井中初次人工裂缝的诱导应力模型;并采用半逆解法得到初次人工裂缝诱导的应力场的解析解。
The results in change of in-situ temperature field and the influences of induced stress due to thermal stress field on the initial fracture condition are analyzed.
据此,分析了这些变化导致的热应力引起的附近应力对注水井井壁开裂条件的影响,并建立了常注水量条件下注水井的井壁开裂准则。
The propagation of blast wave through the linear explosive charge is an important factor which influences the characteristics of the blast stress field induced by the linear explosive charge.
爆轰波沿装药轴线方向的传播是影响条形药包爆炸应力场特征的重要因素。
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