奥陶系灰岩水是中国北方地区煤矿突水的主要来源。本文介绍了利用熵、最大李氏指数及分形分维等三种非线性地震属性预测奥陶系灰岩含水的方法,分析了这三种属性的提取和应用。以许疃煤矿81、82采区为例,利用上述单属性及多属性综合分析,预测许疃煤矿81、82采区可能的奥陶系灰岩含水区域。实际应用表明,非线性地震属性是奥陶系灰岩含水性预测的有效工具。 Ordovician limestone water is the main source of water inrush from coal mines in northern China. This paper introduces a method to predict the water content of Ordovician limestone by using three kinds of nonlinear seismic attributes, such as entropy, Largest Lie index and fractal fractal dimension, and analyzes the extraction and application of these three attributes. Taking the 81 and 82 mining areas in Xufan Coal Mine as an example, the possible Ordovician limestone water-bearing areas in the 81 and 82 mining areas of Xuchang Coal Mine are predicted by the above-mentioned single attribute and multi-attribute comprehensive analysis. Practical applications show that nonlinear seismic attributes are effective tools for predicting the water quality of Ordovician limestone.