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陕北富县地区以前的地震勘探沿沟布设弯曲测 线,平面展布呈不规则树枝状,难以形成闭合回 路,很难对二维地震资料在平面上进行储层反 演。2001年在陕北富县探区进行野外采集方法和 地震处理技术攻关,通过采用极其灵活的可变线 元观测系统实现直测线过塬,使测线成网连片; 资料处理中采用基于模型反演的折射波静校正、 地表一致性振幅补偿和反褶积、叠前噪音衰减等 技术,为后续的储层预测、低幅度构造解释和综 合地质研究提供了高保真的地震资料;由于测线 的连片成网,通过伪测井的方法对无井测线进行 控制,最终实现储层反演的连片解释。
Before the seismic exploration in Fuxian area of northern Shaanxi, curved lines were arranged along the ditch, and the plane distribution was irregular dendrites, making it difficult to form a closed loop. It is difficult to retrieve the 2D seismic data on a flat reservoir. In 2001, the field acquisition method and seismic processing technology were researched in the field of Fuxian in the north of Shaanxi Province, and the straight line was set up through the use of a flexible flexible variable element observing system to make the measuring line into a network. In data processing, Refraction-wave static correction, surface-consistent amplitude compensation and deconvolution, pre-stack noise attenuation and other techniques for model inversion provide high-fidelity seismic data for subsequent reservoir prediction, interpretation of low-amplitude structures, and comprehensive geology studies; The contiguous line of the survey line is used to control the survey line without logging through the method of pseudo logging to finally realize the contiguous interpretation of reservoir inversion.