波阻抗反演在提高煤层分辨率上的应用

Application of Wave Impedance Inversion to Improve Resolution of Coal Seam

为了提高三维地震的分辨率,综合测井资料与地震资料的优点进行波阻抗反演。波阻抗反演不仅使用了地震资料的低频成分,也使用了测井资料的高频成分,从而突破了地震资料对高频成分的限制,获得高分辨率的三维地震反演结果。对鄂尔多斯某区井田三维地震资料进行波阻抗反演,有效的提高了煤层的纵向分辨率和横向分辨率。资料处理结果表明,波阻抗反演是将测井、三维地震资料的优点集于一身。

In order to improve the resolution of the 3 D seismic, the wave impedance inversion was conducted on the advantages of the comprehensive logging information and the seismic information. The wave impedance inversion conducted not only with the low frequency section of the seismic and but also with the high frequency section of the logging information. Therefore the seismic information had broken the restriction of the high frequency section and the 3D seismic inversion results were obtained with the high resolution. The wave impedance inversion was conducted on the 3D seismic information of a minefield of Erdos. The longitudinal resolution and the lateral resolution of the seam were effectively improved. The information treated results showed that the wave impedance inversion was a integration with the logging and 3D seismic information and was an effective means to improve the seam resolution.