叠前弹性波阻抗反演(EI)已经逐渐成为当前油气勘探开发领域内地震反演研究的主流。在简要讨论EI的基本原理基础上,介绍了基于模型的EI反演方法和EI的工作内容,以实例分别介绍当前国外油气勘探开发领域中应用EI技术对油气储层进行岩性识别和流体预测的应用效果,概述了EI技术的发展前景并对我国EI的研究与应用提出建议。 Prestack elastic wave impedance inversion (EI) has gradually become the mainstream of seismic inversion research in the field of oil and gas exploration and development. Based on a brief discussion of the basic principles of EI, the model-based EI inversion method and the content of EI work are introduced. An example is given to introduce the application of EI technology in the field of oil and gas exploration and development in other countries respectively for lithology identification and fluid prediction The paper summarizes the development prospect of EI technology and puts forward some suggestions on the research and application of EI in China.