陕北富县黄土塬地区二维直测线地震资料处理实例

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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.
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