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Seismic data processing method based on alternating direction method and total variation theory

An alternate direction method and seismic data technology, applied in the field of geophysical exploration, can solve problems such as reducing the signal-to-noise ratio, and achieve the effect of improving the signal-to-noise ratio and resolution and improving the processing effect.

Inactive Publication Date: 2016-05-04
PETROCHINA CO LTD
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Problems solved by technology

[0006] Through the research and analysis of the above existing technologies, it is found that there is a common or key technical bottleneck problem in this field at present: the conventional technology for improving the signal-to-noise ratio and resolution of seismic data has the problem of mutual restriction between the two, that is, while improving the resolution , tends to reduce the signal-to-noise ratio

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  • Seismic data processing method based on alternating direction method and total variation theory
  • Seismic data processing method based on alternating direction method and total variation theory
  • Seismic data processing method based on alternating direction method and total variation theory

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] Seismic data digital processing refers to the use of digital computers to process and analyze seismic information collected in the field to obtain high-quality and reliable seismic sections, and to provide intuitive and reliable basis and relevant geological information for the next step of data interpretation. The invention proposes a seismic data processing method based on alternating direction method and total variation theory. A seismi...

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Abstract

The invention provides a seismic data processing method based on the alternating direction method and the total variation theory. The method comprises the steps of building a seismic data model based on total variation, using the classic quadratic penalty function method to convert the model into a solving problem meeting the requirement of iteration and alternating minimization, and performing iteration through the alternating direction method to get seismic data after recovery. By using the technology, seismic data can be de-noised and de-blurred (de-convoluted), the signal-to-noise ratio and resolution of seismic data can be improved effectively, and a good processing effect can be achieved even if the signal is seriously polluted by noise.

Description

technical field [0001] The invention belongs to the field of geophysical exploration, and relates to a seismic data processing method, in particular to a seismic data processing method based on alternating direction method and total variation theory, which is suitable for improving the signal-to-noise ratio and resolution of geophysical exploration data rate processing. Background technique [0002] As fine oil and gas seismic exploration technology requires higher and higher signal-to-noise ratio and resolution of seismic data, maintaining high signal-to-noise ratio and high resolution while processing seismic data has become a major issue in the industry, which directly Technological advances affecting energy exploration. At present, traditional techniques for improving the signal-to-noise ratio and resolution of seismic data have been difficult to meet the needs of current high-precision exploration, and the two have been mutually restricting each other. Therefore, it i...

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Application Information

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IPC IPC(8): G01V1/28
CPCG01V1/282
Inventor 桑雨郭平宋宏文高树生柳世光
Owner PETROCHINA CO LTD
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