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该文重点介绍了基于模型的波阻抗反演的基本原理、实现流程、关键环节以及在煤田中的应用。基于模型的测井约束反演技术,是在精确层位标定、层序划分及煤层精细对比的基础上,并利用测井资料垂向分辨率高和地震资料横向分辨率高的特点,对反映煤层变化的波阻抗等参数进行求取,以研究煤层的分布及其变化细节。通过山西某煤田实际应用,取得了较好的效果,得到了采区煤层分布的情况,为煤矿的开采提供了更多的地质信息。
This paper mainly introduces the basic principle of model-based wave impedance inversion, the realization of the process, the key links and the application in the coal field. The model-based logging constrained inversion technique is based on precise horizon calibration, sequence division and fine correlation of coal seams. Based on the characteristics of high vertical resolution of logging data and high lateral resolution of seismic data, The wave impedance and other parameters of coal seam variation are calculated to study the distribution of coal seam and its variation details. Through the practical application of a coal field in Shanxi Province, good results have been obtained, the distribution of coal seams in the mining area has been obtained, and more geological information has been provided for the mining of coal mines.