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计算机自动拟合中用置信区间来表示每一计算参数的可信度，用累积残差作为目标函数来控制计算过程。对于手工拟合，难以用累积残差作为目标函数来寻优。本文提出用双对数及压力导数复合检验图上，实测与理论的压力与压力导数曲线间面积之差来评价拟合结果的好坏，评价的结果是从０到１００之间的百分数。实际应用表明，用本文提出的评价方法，可以提高在计算机辅助下的典型曲线拟合精度，使得不同井次的解释精度具有可对比性。本文提出的精度评价方法也适用于计算机自动拟合。
The confidence interval of each calculation parameter is represented by the confidence interval in computer automatic fitting, and the cumulative residual is used as the objective function to control the calculation process. For manual fitting, it is difficult to find the optimal residuals as the objective function. This paper proposes to evaluate the fitting results by using the logarithm of double logarithms and the derivative of pressure derivatives to check the difference between measured and theoretical pressure and the area of pressure derivative curve. The evaluation results are from 0 to 100 percentages. The practical application shows that using the evaluation method proposed in this paper, the precision of typical curve fitting under computer assistance can be improved and the interpretation accuracy of different wells can be compared. The accuracy evaluation method proposed in this paper is also suitable for automatic computer fitting.