OVT域宽方位叠前地震属性分析方法

doi:10.13810/j.cnki.issn.1000-7210.2015.05.020

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Abstract OVT-domain wide-azimuth prestack seismic attribute analysis is one of the most important approaches in wide azimuth seismic. Based on azimuthal anisotropy analysis, it can excavate geological and fluid information contained in prestack seismic datasets and effectively carry out reservoir prediction. In this paper we first make a brief introduction to OVT and its development history, and its innovations on seismic interpretation, and then discuss four types of OVT-domain prestack seismic attribute analysis, namely, the template-based dynamic OVT gather analysis and stacking imaging, OVT-domain multi-offset and multi-azimuth analysis, AVO analysis, and azimuthal anisotropy analysis. As an advanced prestack seismic interpretation tool, it provides an effective way for reservoir and fluid prediction on prestack seismic data. Real examples in carbonate fracture prediction show that the proposed approach breaks through the limitations of conventional poststack seismic interpretation, realize the high-precision azimuthal anisotropy analysis based on OVT gathers, and improve the accuracy of seismic structure analysis and reservoir characterization.

Key words： seismic attribute analysis wide azimuth OVT domain fracture prediction prestack five-dimension gather

Received: 22 September 2014

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http://www.ogp-cn.com/EN/10.13810/j.cnki.issn.1000-7210.2015.05.020 OR http://www.ogp-cn.com/EN/Y2015/V50/I5/956

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