Equal-reflection-angle-interval seismic acquisition and observation method and system
An angular interval and seismic wave technology, applied in the field of petroleum seismic exploration, can solve the problems of low sampling density and inability to improve the quality of seismic records, and achieve the effect of strengthening pertinence, improving success rate and improving quality
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[0017] The present invention will be described in detail below in conjunction with the drawings. However, it should be understood that the drawings are only provided for a better understanding of the present invention, and they should not be construed as limiting the present invention.
[0018] The seismic acquisition and observation method with equal reflection angle interval provided by the present invention includes the following steps:
[0019] 1) Given a three-dimensional grid seismic wave velocity model V (x, y, z), determine a target formation in the three-dimensional grid seismic wave velocity model V (x, y, z), and determine the target formation Depth varies with horizontal coordinate function T z (x, y), at different V(x, y, z) and z t In the case of (x, y), due to the different propagation paths of seismic waves, the same reflection angle a t Will get different exit positions x t ,vice versa.
[0020] 2) Select a surface focal point on the surface, and determine the x-coo...
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