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采用τ-p变换研究各向同性纵波反射系数的振幅特性,通过分析纵波在τ-p域中的时差特性曲线信息,提出了一个和传统Shuey算法相似的新的二元数学模型,只需对目标反射层以及上中下三层进行τ-p域里的时差分析,而无须其他附加信息.结合模拟数据以及实际的测井数据,分别给出了详细的实验步骤及分析.实验结果证明此算法的反演结果和实际值吻合良好,可以应用于实际的工程分析.分析方法可以作为Shuey AVO的替代,同时具有相似的准确度,结果令人满意.
The amplitude characteristic of the isotropic longitudinal wave reflection coefficient is studied by τ-p transform. A new binary mathematical model similar to the traditional Shuey algorithm is proposed by analyzing the time-difference characteristic curve of the longitudinal wave in τ-p domain. Target reflection layer and the upper and lower three-layer time-lag analysis in the τ-p domain without additional information.According to the simulation data and the actual log data, the detailed experimental steps and analysis are given respectively.Experimental results show that this The inversion result of the algorithm is in good agreement with the actual value and can be applied to the actual engineering analysis.The analysis method can be used as an alternative to Shuey AVO with similar accuracy with satisfactory results.