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考虑井筒储存和表皮效应的影响，建立了无限大均质油藏的试井数学模型．用拉普拉斯变换方法获得拉氏空间的解．依据压力叠加原理绘制出压力恢复试井理论曲线，结合实例给出了压力恢复试井曲线的分析方法．关井前的稳定生产时间是导致压力恢复理论曲线与压力降落理论曲线存在差异的主要因素．关井前稳定生产时间越短，恢复曲线开始偏离压力降落曲线的时间就越早，与压降曲线偏离的位置也越大
Considering the influence of wellbore storage and skin effect, a well testing mathematical model of an infinite homogeneous reservoir is established. Laplace transform method to obtain Laplace space solution. According to the principle of pressure superposition, the theoretical curve of pressure recovery well test is drawn, and the analysis method of pressure recovery well test curve is given with examples. The steady production time before shut-in is the main factor leading to the difference between the theoretical curve of pressure recovery and the theoretical curve of pressure drop. The shorter the stable production time before shut-in, the earlier the recovery curve begins to deviate from the pressure drop curve, and the greater the deviation from the pressure drop curve