全数字高密度三维地震勘探中地震属性预测煤层厚度的应用

地震勘探的综合属性分析是解决煤层厚度预测的有效手段，全数字高密度三维地震勘探通过小面元、宽方位角、高覆盖次数和数字检波器全频接受等优势，能够采集到质量全面提高的原始资料，针对性处理后得到“高分辨率、高信噪比、高保真度”的三维数据体。结合淮北某矿区实例介绍了全数字高密度三维地震中地震属性预测煤层厚度的应用。经过地震属性的提取、标准化、优化以及地质转化后，得到了包括振幅类属性、频率类属性、相位类属性、谱统计类属性等在内的6种地震属性，6种属性经过多元回归计算得到区内煤厚变化。预测煤厚与钻孔煤厚的交汇情况显示，煤厚预测效果较好。

Application on seismic attributes forecasting coal thickness of all digital high density 3D seismic exploration

Comprehensive attribute analysis of seismic exploration is an effective method to forecast coal thickness，based on the advantage caused by small patches，wide azimuth，high coverage，digital geophone of whole frequency and so on of all digital high density 3D seismic exploration，it can get the 3D data of "high resolution，high snr，high fidelity" after targeted processing.It introduced the application on seismic attributes forecasting coal thickness of all digital high density 3D seismic exploration in some a mining area of Huaibei.First of all，it got six kinds of seismic attributes such as amplitude attributes，frequency attributes，phase attributes and spectrum statistic attributes after the extraction，standardization，optimizing and geology change of seismic attributes，it got the thickness variation of coal seam in the mining area after the multiple regression calculation of the six kinds of seismic attributes.The rendezvous between the forecasting coal thickness and the coal thickness of boreholes showed that the effect of coal thickness forecasting is better.