Unlock instant, AI-driven research and patent intelligence for your innovation.

A data-driven method for detecting the depth value of marine seismic exploration geophones

A marine seismic exploration, data-driven technology, applied in seismic signal processing and other directions, can solve the problems of limited correction effect and depth value error, and achieve the effect of low processing cost and high calculation efficiency

Active Publication Date: 2019-08-06
JILIN UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the actual production process, the depth value of the marine seismic survey geophone depends on the depth value recorded by the depth gauge on the geophone, but due to weather and natural factors such as waves, tides, fish schools, etc., the depth value recorded by the depth gauge often has a large error , the existing technology basically corrects the error of the depth value of the geophone by improving the accuracy of the depth gauge and recording the tidal law. Since these methods are indirect and auxiliary, and do not directly use the collected seismic data, the correction limited effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A data-driven method for detecting the depth value of marine seismic exploration geophones
  • A data-driven method for detecting the depth value of marine seismic exploration geophones
  • A data-driven method for detecting the depth value of marine seismic exploration geophones

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a data-driven method for detecting the depth value of offshore seismic exploration geophones is as follows:

[0031] Suppose the seismic data of 3D shot set is expressed as n=1, 2,…,N; m=1, 2,…,M; j=1, 2,…,J, composed of N shots, each shot contains M channels of seismic data, and each channel of seismic data in the time direction Containing J sampling points, record the original geophone depth value of each seismic data recorded by the depth gauge as

[0032] (1) Input parameters p, q and the propagation speed of sound waves in seawater, denoted as v w M / s, request 0

[0033] (2) Read the seismic data of the first shot and set it as the seismic data of the nth shot;

[0034] (3) For the seismic data of the nth shot and mth channel Perform Fourier transform along the time direction to get frequency domain data:

[0035]

[0036] Here Represents the imaginary unit;

[0037] (4) Using the corresponding relationship between detector de...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a data-driven offshore seismic exploration wave detector depth value detecting method, and relates to the field of physical geography. The detecting method includes parameter input, data reading, Fourier transform to acquire frequency domain data, calculation of initial frequency and frequency adjusting zone, calculation of updated wave detector depth value, judgment of integrity of seismic data processing, and other steps. The method takes the collected seismic data as a driver, utilizes the corresponding relationship between the wave detector depth value and the frequency, and restores the real wave detector depth value greatly through a technical treatment manner.

Description

Technical field [0001] The invention relates to the technical field of geophysics, in particular to a data-driven method for detecting the depth value of a geophone for marine seismic exploration. Background technique [0002] The depth value of the geophone for offshore seismic exploration is a very important parameter in the process of seismic signal processing. The depth value directly determines the quality of the results of many seismic data processing processes, especially the ghost wave elimination process, which is highly dependent on the process of ghost wave elimination. The depth value of the detector. [0003] In the actual production process, the depth value of the geophone for offshore seismic exploration depends on the depth value recorded by the depth gauge on the geophone. However, due to weather and natural factors such as sea waves, tides, and fish schools, the depth value recorded by the depth gauge often has large errors. The existing technology basically corr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 贾继伟邝昊鹏孟祥龙兰傲王秀丽杜蒙
Owner JILIN UNIV