地震属性融合技术在河道砂体识别中的应用

The application of seismic attribute fusion technology in recognizing channel sands

地震属性分析是进行储层识别和描述的常用方法之一。近年来,随着地震属性技术的发展,属性融合技术逐渐成为一种新的属性分析方法,它能有效地改善单一属性分析的局限性问题,使储层描述的结果更可靠,同时多属性融合技术能突出弱信号,对于小砂体识别具有重要意义。针对饶阳凹陷大王庄工区河道砂体的小、散、薄的特点,这里采用属性融合技术对其进行识别。首先,阐述了属性融合的必要性;其次,建立了属性融合的技术流程;最后,分析融合属性对河道砂体的识别效果,并通过钻井资料进行了可靠性验证。实际资料效果表明,融合属性对河道砂体的识别效果比单一属性的效果好。

Seismic attribute analysis is one of the commonly method used to identify and describe reservoir.In recent years,with the development of seismic attribute technology,fusion technology gradually becomes a new method of attribute analysis.It can effectively improve the limitations of a single attribute analysis,the more reliable the results of reservoir description and make the results of reservoir description more reliable.What is more,attribute fusion can enhance the weak signals,what is significant for some small sand body＇s identification.The channel of sands is characterized by small,scattered and thin and can be recognized effectively by the attribute fusion technology.Firstly,this paper expounds the necessity of attribute fusion;secondly,the attribute fusion technology process is established;at last,we give the recognition result of the channel sands and verified by drilling data.Real data processing confirms that the recognition result of fusion attribute is better than the single attribute.