【摘要】 地震虚源法是为了解决复杂近地表问题而发展起来的一种新方法技术,采用地表激发井中接收的观测方式,通过在接收器位置构建虚源,能够获得井中接收器之间的地震响应.这一过程无需速度和震源位置信息,从而避开了复杂近地表对地震波场的影响.目前主要应用于复杂时变近地表条件下的油气勘探开发领域,如4D油藏监测、钻探风险评估和高陡构造精细成像等.本文首先详细介绍地震虚源法的发展历史、原理和技术特点,其次介绍其实际应用的成功实例,最后简单分析其存在的问题,并展望其潜在的应用前景和商业价值.更多还原

【Abstract】 The seismic virtual source method is a new technique that has been developed to settle the complex near surface.Employing the geometry with shooting on the surface and receiving in the well,the seismic responses between the receivers in the well can be obtained by generating the virtual sources on the receiver positions.This process is not needed for the velocity and source positions information,so avoiding the effects of the complex near surface on the seismic wavefield.Now this method is mainly applied for the stage of the oil developments such as 4D reservoir monitoring,drilling risk evaluation and precisely imaging the high-dipped structures in the case of complex time-varying near surface.In this paper firstly we review briefly the principle of the virtual source method and its historical developments,then introduce the applicative cases,and finally analyze the problems that must be accounted for,and prospect its potential applicative foreground and business values.更多还原