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Seismic exploration data multiple automatic search and suppression method

An automatic search and seismic exploration technology, applied in the field of seismic exploration data processing, can solve problems such as multiple wave suppression that cannot be completely solved, and achieve the effect of accurate suppression

Inactive Publication Date: 2017-01-25
北京软岛科技有限公司
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Problems solved by technology

[0004] With the deepening of the application of seismic exploration technology and its expansion into multiple fields, the original multiple wave suppression technology suitable for petroleum seismic exploration data processing has been unable to completely solve the problem of multiple wave suppression

Method used

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  • Seismic exploration data multiple automatic search and suppression method
  • Seismic exploration data multiple automatic search and suppression method
  • Seismic exploration data multiple automatic search and suppression method

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Basic features of multiples: Periodicity is the basic feature of multiples:

[0039] - Multiples are multiple oscillations back and forth between two interfaces;

[0040] ——The propagation time of multiple waves between the same two reflection interfaces is fixed, so the time difference between the primary wave and the secondary wave, the third wave, ... is equal, that is, it has periodicity ;

[0041] - The size of the period de...

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Abstract

The invention proposes a method for automatically searching and suppressing multiple waves of seismic exploration data. This method only needs the user to determine the threshold value of suppressing or attenuating multiple wave energy, and can automatically detect multiple waves with different periods in the same seismic data, and automatically determine the multiple wave period and prediction step. long, choose the calculation time window and the application time window; this method also proposes an effective quality monitoring method for the multiple wave suppression effect and can automatically determine the effect.

Description

technical field [0001] The invention relates to the technical field of seismic exploration data processing, in particular to a method for automatically searching and suppressing multiple waves of seismic exploration data. Background technique [0002] Multiple reflection is a natural and normal phenomenon during the propagation of seismic waves in layered media. As long as there is a reflection interface (that is, an interface with wave impedance differences), reflection and transmission will occur at the interface; as long as there are multiple reflection interfaces, There will be multiple reflections between any two of the interfaces due to the transmission and reflection of the wave at the interface. Some of these multiples can be identified with the naked eye, while more require certain technical methods to be identified. Those that can be identified with the naked eye, or those that have a certain intensity that affects the identification of the effective primary refle...

Claims

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Application Information

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IPC IPC(8): G01V1/36
CPCG01V1/364G01V1/36
Inventor 唐文榜樊佳芳李治国姜华方
Owner 北京软岛科技有限公司
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