OBS data bubble suppression method and processing terminal

Abstract

The invention discloses an OBS data bubble suppression method and a processing terminal. The method comprises the steps of: preprocessing OBS data to obtain water detection P component data and land detection Z component data; screening out a plurality of pieces of water detection P component data within a certain offset range to obtain screened water detection P component data; calculating an average effect P component seismic wavelet of all P component seismic wavelets; calculating to obtain a P component seismic wavelet after bubble suppression and a bubble suppression operator; repeating the wavelet acquisition step on the land detection Z component data to obtain an average effect Z component seismic wavelet; calculating a matching operator of the Z component seismic wavelet and the P component seismic wavelet; and applying the matching operator and the bubble suppression operator to the P component data to obtain water detection P component data after bubble suppression. The amplitude and phase characteristics of the water detection P component data and the land detection Z component data are well kept consistent, and the influence of the bubble effect on the P component is eliminated.

Description

technical field [0001] The invention relates to the technical field of seismic data processing, in particular to an OBS data bubble suppression method and a processing terminal. Background technique [0002] The submarine seismograph is a seismic data acquisition device capable of receiving four component information of P, X, Y, and Z. The submarine seismograph is also called OBS, and the seismic data collected by it is called OBS data. In actual use, the geophone is usually placed on the seabed and the observation method of sea surface shooting and seabed reception is adopted. Among them, the P component is the water survey component, receiving the longitudinal wave information, the X, Y, and Z components are the three components of the land survey, the X, Y components are the horizontal components, receiving the transverse wave information, and the Z component is the vertical component, receiving the longitudinal wave information . [0003] In the actual OBS data collect...

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, one of the purposes of the present invention is to provide a method for suppressing OBS data bubbles, which can solve the problem of suppressing the impact of bubbles on OBS data;

[0005] The second object of the present invention is to provide a processing terminal, which can solve the problem of the impact of air bubbles on OBS data

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