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根据地震速度分析,不可能确定出薄层或复杂构造特征的精确的地层速度,对于处在不整合面下面的薄层或复杂构造特征,尤为如此。然而,我们可以用地震振幅分析并沿不整合面计算出反射系数来解决层速度的问题。为了试验这种方法的可能性,为了选出将要使用的参数为最佳参数,我们在一个模型上作了一次误差估计。这个方法已被付诸使用,结果表明:计算的层速度值同按照声波测井得到的值相当一致。
Based on the seismic velocity analysis, it is not possible to pinpoint the precise formation velocity for thin or complex structural features, especially for thin layers or complex structural features beneath the unconformity. However, we can solve the layer velocity problem by using the seismic amplitude analysis and calculating the reflection coefficient along the unconformity. In order to test the possibility of this method, in order to select the parameters to be used as the best parameters, we made an error estimate on a model. This method has been put into use and the results show that the calculated layer velocity values are quite consistent with those obtained by sonic logging.