VSP处理新技术及应用

New processing approaches of VSP data

近年来随着油气田开发程度的深入、油井数量的猛增,对地震勘探精度提出了许多新的要求,VSP技术正是在这种背景下不断适应新的需求,取得了快速的发展。首先全面介绍了东方地球物理公司在VSP技术方面的创新性研究及其在勘探开发实例中的应用效果;其次重点探讨了VSP技术与地面地震不同的处理方法,包括参数提取、波场分离、反褶积及成像等;然后对于最新发展的分布式光纤传感(Distributed Acoustic Sensing,DAS)VSP技术也进行了简要论述;最后展示了VSP技术在地震勘探向开发延伸中的独特作用和发展潜力。

In recent years,the number of oil wells has rapidly increased with the development of oil and gas fields in China,and many new requirements for seismic accuracy have been put forward.In this background vertical seismic profile(VSP)is constantly adapting to new needs and has achieved rapid developments.This paper comprehensively introduces the innovative research of VSP and its applications in many exploration and development examples in China,discusses VSP processing methods different from surface seismic,including parameter estimation,wavefield separation,deconvolution,and imaging.The distributed acoustic sensing(DAS)VSP is also introduced in this paper,which may demonstrate the unique role and development potential of VSP in the extension from exploration to development.