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叠前弹性波阻抗反演是预测构造煤分布的一种有效方法,不少研究者提出了不同的弹性波阻抗公式,对比分析它们的精度及它们区分构造煤的能力是个值得研究的问题。利用构建的不同煤体类型双层构造煤模型,对比分析了5个典型弹性波阻抗公式的精度和它们区分构造煤的能力。结果表明,苑春方改进的弹性波阻抗公式区分构造煤和原生煤的能力最强。
Prestack elastic wave impedance inversion is an effective method to predict the distribution of tectonic coal. Many researchers have proposed different formulas of elastic wave impedance. To compare their accuracy and distinguish their ability to construct coal is worth studying. By using the constructed double-layer coal model with different coal types, the precision of five typical elastic wave impedance formulas and the ability of distinguishing coal from each other were analyzed. The results show that the formula of elastic wave impedance developed by Yuan Chunfang has the strongest ability to distinguish tectonic and primary coal.