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1. 发明授权

US06169959A Method of predicting kinematics for surface multiples 失效
标题翻译：预测表面倍数运动学的方法
公开(公告)号：US06169959A
公开(公告)日：2001-01-02
申请号：US09320954
申请日：1999-05-27
申请人： William Henry Dragoset Jr.
发明人： William Henry Dragoset Jr.
IPC分类号： G01V128
CPC分类号： G01V1/36 , G01V2210/56
摘要： Traveltimes of multiply reflected seismic events in a seismic profile or a model are determined from traveltimes for primary events. The traveltimes for the primary events may be obtained by ray tracing through a velocity model of the subsurface of by picking traveltimes from primary reflection horizons present in an actual seismic data set. The traveltimes for the primary events define a traveltime table for various combinations of source and receiver locations. The traveltime for a multiple corresponding to specified source and receiver positions is then determined by summing the traveltimes for primary events from the source to an interim point and from the interim point to the receiver: the correct location of the interim point corresponding to an actual multiple reflection raypath from the source to the receiver is the one that, according to Fermat's principle, has the minimum value for the sum. This method is applicable to all primary events, so that subsurface multiples as well as water bottom multiples can be determined. The method may also be used for determining traveltimes for higher order multiples.
摘要翻译：地震剖面或模型中乘法反映的地震事件的旅行时间由主要事件的旅行时间确定。主要事件的旅行时间可以通过通过从实际地震数据集中存在的主要反射视野拾取旅行时间的地下速度模型进行射线追踪来获得。主要事件的旅行时间定义了源和接收器位置的各种组合的旅行时间表。然后，通过将从源到临时点和从临时点到接收者的主要事件的行进时间相加来确定对应于指定的源和接收器位置的多个移动时间：对应于实际倍数的中间点的正确位置从源到接收机的反射射线路径是根据费马原理，具有总和的最小值。该方法适用于所有主要事件，从而可以确定地下倍数以及水底倍数。该方法还可用于确定较高阶乘数。

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