频谱成像在滩坝砂油藏储层描述和预测中的应用

Application of the Spectral Imaging on the Description and Prediction of the Bar and Shoal Reservoir

频谱成像可以将地震数据体从时间域转换到频率域,利用分频处理技术可以大大提高对薄储集层的分辨能力。针对滩坝砂油藏的储层发育和分布特点,综合运用了频谱成像技术对滩坝砂油藏进行了研究,首先从理论基础分析出发,介绍了频谱成像的原理,然后结合国内某油田的实际情况,阐述用频谱成像技术进行沉积相划分以及判断储层分布的方法及实际效果。结果表明,在对滩坝砂储层进行开发的过程中,利用频谱成像特有的横向高分辨率特点,可以很好地预测储集层的沉积相特征及储层的展布。

The spectral imaging technique may transform the time zone to the frequency zone,and may therefore improve the seismic resolution on the thin reservoir.According to the reservoir occurrence and distribution features of the bar and shoal reservoir,the spectral imaging technique is applied comprehensively on t he bar and shoal reservoir.Firstly,the basic theory is introduced and then the mechanism of the spectral imaging,afterwards,the field is selected as an example,and test the performance of the spectral imaging technique on the sedimentary facies and distribution of reservoir.It is testified by the result that,during the development of the bar and shoal reservoir,the spectral imaging is of high lateral resolution,and may well predict the sedimentary facies and distribution of reservoir.