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Method and device for automatically acquiring events of seismic section and storage medium

A seismic profile and automatic picking technology, applied in seismology, measuring devices, seismic signal processing, etc., can solve problems such as low calculation accuracy, susceptibility to noise interference, and reduced event accuracy

Active Publication Date: 2019-10-29
PETROCHINA CO LTD
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Problems solved by technology

[0004] However, at present, the method of plane wave decomposition or prediction, the method of structural tensor, or the method of instantaneous wave number direction are usually used to estimate the dip field, but the calculation accuracy of these methods is not high, and they are susceptible to noise interference. Therefore, reducing In order to determine the accuracy of the event

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  • Method and device for automatically acquiring events of seismic section and storage medium
  • Method and device for automatically acquiring events of seismic section and storage medium
  • Method and device for automatically acquiring events of seismic section and storage medium

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Embodiment Construction

[0062] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0063] figure 1 It is a flow chart of an event automatic picking method for a seismic section provided by an embodiment of the present invention, see figure 1 , the method includes the following steps:

[0064] Step 101: According to the waveforms of the N seismic wavelets, determine the vector data sequence corresponding to the N seismic wavelets one by one, the N seismic wavelets refer to the seismic wavelets in multiple seismic channels of the seismic section, each A seismic trace corresponds to at least one seismic wavelet, and N is a positive integer greater than 1.

[0065] Step 102: Based on the determined N vector data sequences, determine multiple groups of seismic wavelets that match each other from the N seismic wavelets, ...

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Abstract

The invention discloses a method and device for automatically acquiring the events of a seismic section and a storage medium, and belongs to the technical field of seismic exploration. The method includes the steps of: determining, according to the waveforms of N seismic wavelets, vector data sequences corresponding to the N seismic wavelets one to one, wherein the N seismic wavelets are seismic wavelets in a plurality of seismic traces of a seismic section, and each seismic trace corresponds to at least one seismic wavelet; based on the determined N vector data sequences, determining mutually-matched group of seismic wavelets from the N seismic wavelets, wherein each group comprises M seismic wavelets and the M seismic wavelets correspond to different seismic traces; and connecting the Mseismic wavelets in each group in units of groups to obtain a plurality of events of the seismic section. The method can quickly and automatically acquire the events of the seismic section according to the vector data sequences corresponding to the seismic wavelets, saves time and lays a foundation for subsequent structural interpretation of the seismic section.

Description

technical field [0001] The invention relates to the technical field of seismic exploration, in particular to a method, device and storage medium for automatically picking up events of seismic sections. Background technique [0002] In the process of seismic exploration, structural interpretation of seismic sections is required, and the position discrimination of seismic horizons on seismic sections is the basis for structural interpretation of seismic sections. Since the structural interpretation of the seismic section strictly follows the event reflection structure, the event of the seismic section can be picked to obtain the position of the effective seismic horizon in the seismic section, and then realize the structure of the seismic section through the position of the effective seismic horizon Explanation. Wherein, the event axis refers to the line connecting the extremum (ie, peak or trough) with the same vibration phase of all seismic traces in the seismic section. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30
CPCG01V1/301G01V2210/63
Inventor 邢文军杨国涛张建坤高文中张明樊蓉石文武徐风吴远坤乔石石徐文会
Owner PETROCHINA CO LTD
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