OVT处理技术在东北某工区的应用

Application of OVT processing technology in a work area in Northeast China

对共偏移距矢量片(OVT)处理技术进行深入研究,主要包括OVT道集的抽取、数据规则化、OVT域叠前时间偏移以及方位各向异性校正等技术。通过对东北某工区高密度宽方位地震资料的应用,证明了在宽方位地震资料处理中,可以通过基于OVT域的处理技术提高成像质量,同时保留方位角、各向异性信息,更好地预测裂缝发育强度及方向。

In this paper,the processing technology of common offset vector slice(OVT)is studied deeply,including the extraction of OVT track set,data regularization,OVT domain pre-stack time migration and azimuth anisotropy correction.Through the application of high density and wide azimuth seismic data in a working area in northeast China,it is proved that the processing technology based on OVT domain can improve the image quality in the processing of wide azimuth seismic data,while retaining the azimuth and anisotropy information,and better predict the strength and direction of fracture development.