石油地震地质学的“四步法”研究方法已广泛应用于油气勘探开发的各个阶段，并取得了良好效果。 以石油地震地质学研究的“四步法”为基础，结合储层研究的特点，阐述了地震储层学研究“四步法”的内 涵及其内在逻辑关系。研究结果表明：储层地质研究是地震储层学研究的地质基础；地震岩石物理实验及 技术方法研究是地震储层学的实验基础和方法体系；储集体的表征与建模是地震储层学研究的核心；储 层综合评价与建模是地震储层学研究的成果体系。准噶尔盆地乌夏地区夏72 井区裂隙式喷发火成岩地 震储层学研究的实例证实了“四步法”的可行性和有效性，所建立的储层特征模型和油藏三维模型有效指 导了该区的勘探开发，并对其他地区火成岩储层表征与建模提供了一定的借鉴。

The four-stepmethod of petroleumseismogeology has been widely used in the exploration and development of oil and gas, and achieves good effects. Based on the four-step method of petroleumseismogeology and combined with the characteristics of reservoir study, this paper elaborated the connotation and inner logical relation of the four-step method of seismic reservoir. The result shows that reservoir geological study is the geological basis, seismic petrophysical experiment and technique study are the experimental basis and technique system, reservoir characterization and modeling is the research core, and comprehensive reservoir evaluation and modeling are the results systemof the seismic reservoir. The case study on the seismic reservoir of igneous rock of fissure eruption in Xai 72 well area in Wuxia area confirms the feasibility and effectiveness of the four-step method, the established reservoir characteristic model and 3D reservoir models guide the exploration and development of this area, and provide a good reference for the reservoir characterization andmodeling about igneous reservoir in other areas.