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Complex surface model reconstruction method and device

A technology of model reconstruction and complex surface, applied in the field of static correction, can solve the problems of low-frequency closure of different blocks, affect the effect of migration modeling, and cannot be referenced, so as to achieve good application prospects and retain the effect of static correction

Pending Publication Date: 2021-03-09
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

However, this method may cause the low-frequency closure problem of different block splicing, and more importantly, there is no overall near-surface model corresponding to the static correction after splicing, which cannot provide information for subsequent migration modeling. Reference, which affects the effect of offset modeling

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  • Complex surface model reconstruction method and device
  • Complex surface model reconstruction method and device
  • Complex surface model reconstruction method and device

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0042] Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware ...

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Abstract

The invention discloses a complex surface model reconstruction method and device. The method comprises the steps of obtaining a model of a first surface block established by adopting a first static correction method and a model of a second surface block established by adopting a second static correction method; splicing the model of the first surface block and the model of the second surface blockby adjusting the model thickness of the model of the second surface block to realize model interface closing of the splicing position; and splicing the low-frequency value of the static correction value of the first surface block and the low-frequency value of the static correction value of the second surface block by adjusting the low-frequency value of the static correction value of the secondsurface block to realize low-frequency closing. Model reconstruction of complex earth surfaces of different blocks of a work area is realized, static correction effects of different methods are reserved, a foundation is laid for pre-stack depth migration modeling, and the method has a good application prospect.

Description

technical field [0001] The invention relates to a static correction method, in particular to a complex surface model reconstruction method and device. Background technique [0002] At present, the surface structure of the complex surface in western my country changes drastically, and the problem of static correction of seismic data is serious. It is difficult to use one static correction method to completely solve the existing static correction problem. Different blocks (surface) in the work area may be suitable for different static correction methods. For example, the refraction static correction method in the piedmont has a better effect, and the tomographic static correction method in the mountainous area has a better effect. In order to solve the overall static correction problem in the work area, the static correction amounts calculated by different methods are generally used for splicing, and the static correction advantages of each block are retained to achieve the bes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/11G06F17/14G01V1/36
CPCG01V1/362G06F17/11G06F17/14
Inventor 王海立马立新尹吴海于宝华张立军王彪
Owner BC P INC CHINA NAT PETROLEUM CORP
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