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本文以二维弹性孔板理论为基础,应用线弹性断裂力学理论,对油气井水力压裂作了理论分析,并得出了计算岩石破裂压力的公式。室内试验和现场实例表明,这些公式的计算结果比目前石油工程中广泛采用的公式更接近实际施工的情况。
Based on the theory of two-dimensional elastic orifice plate, the theory of linear elastic fracture mechanics is applied to the theoretical analysis of hydraulic fracturing in oil and gas wells, and the formula for calculating the fracture pressure of the rock is obtained. Laboratory tests and field examples show that the results of these formulas are closer to the actual construction than those widely used in petroleum engineering.