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本文应用弹性力学方法求解油井井壁围岩由于温度变化而导致的应力场变化，并定量地给出温度变化对井壁稳定的影响
In this paper, the elastic mechanics method is used to solve the stress field changes caused by the temperature changes of the surrounding rock of the oil well borehole wall, and quantitatively give the influence of the temperature variation on the wellbore stability