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Data reconstruction method, device and system for improving spatial sampling attributes of seismic data

A seismic data and data reconstruction technology, applied in seismology, measurement devices, seismic signal processing, etc., can solve problems such as computational efficiency affecting applications, spatial sampling of seismic data does not meet regular sampling, etc., to improve versatility and reconstruction efficiency , shorten the reconstruction time, improve the effect of image quality

Active Publication Date: 2020-10-09
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

Moreover, due to field construction conditions, such as: land terrain conditions, ocean currents, etc., the spatial sampling of the original seismic data often does not meet the requirements of regular sampling or no missing, so this kind of method can only be used in post-stack data. is being encrypted
[0004] In addition, with the popularization and application of high-coverage and high-density acquisition technology, data reconstruction to improve the spatial sampling properties of seismic data needs to process tens of terabytes of massive data. Efficiency will seriously affect its application in production

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  • Data reconstruction method, device and system for improving spatial sampling attributes of seismic data

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[0047] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. For example, in the following description, forming the second component above the first component may include an embodiment in which the first component and the second component are formed in direct contact, and may also include an embodiment in which the first component and the second component are formed in indirect contact ( That is, the...

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Abstract

The embodiment of the present application provides a data reconstruction method, a device and a system for improving spatial sampling property of seismic data. The method comprises the following steps: obtaining a task from a node, wherein the task is corresponding to one of a plurality of data blocks previously split by the master node from a time space domain seismic data body to be reconstructed; a slave node performs fast Fourier transform on the data block along the time direction to obtain a frequency space domain data body; the slave node performs a non-uniform Fourier transform on thefrequency space domain data body according to the spatial position along the spatial direction to obtain a frequency space wave number domain data body; the slave node determines the wave number spectrum components of all time-frequency slices in the frequency space wave number domain data body, and stores the wave number spectrum components in a output matrix; the slave node inversely transformsthe output matrix to a time space domain to obtain seismic data after the data block is reconstructed; the slave node provides the reconstructed seismic data to the master node to combine and processthe result. The embodiments of the present application can improve the versatility and reconstruction efficiency of data reconstruction.

Description

technical field [0001] The present application relates to the technical field of seismic data reconstruction, in particular to a data reconstruction method, device and system for improving spatial sampling attributes of seismic data. Background technique [0002] In the present stage of seismic exploration, due to the limitation of exploration funds, field construction conditions and other factors, the acquired seismic data often cannot meet the requirements of subsequent imaging for spatial regularity and spatial sampling density of seismic data. Sparse or irregular spatial sampling properties will seriously affect the imaging effect of seismic data, and seismic data reconstruction technology can improve the spatial sampling properties of the observation system to a certain extent, thereby improving the imaging effect of seismic data. [0003] For example, frequency-space domain channel interpolation technology, frequency-wavenumber domain channel interpolation technology, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/32
CPCG01V1/325G01V2210/48
Inventor 薛贵仁王宝彬张旭东杨志昱孙静薛红刚
Owner BC P INC CHINA NAT PETROLEUM CORP
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