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Seismic attribute optimization method and device

A technology of seismic attributes and optimization methods, applied in seismic signal processing and other directions, can solve problems such as lack of theoretical basis, difficulty, and insufficient stability, and achieve the effect of accurate optimization results and sufficient theoretical proof.

Active Publication Date: 2016-01-27
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

Although experts can sometimes propose several sets of better seismic attributes or combinations of seismic attributes, it is difficult to further determine which set is the best
[0005] In the existing technology, the method of optimizing seismic attributes based on expert knowledge has strong multi-solutions and insufficient stability, and the selection process is mainly based on personal experience, lacking sufficient theoretical basis. Methods

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  • Seismic attribute optimization method and device
  • Seismic attribute optimization method and device

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Embodiment Construction

[0069] 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.

[0070] According to the above analysis, the method of optimizing seismic attributes based on expert knowledge lacks sufficient theoretical basis. Generally speaking, the mathematical optimization method has more sufficient theoretical proof and rigorous derivation process than the expert experience optimization method. In the method for ...

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Abstract

The invention provides a seismic attribute optimization method and device. The method comprises the steps that the sample data of seismic attributes to be optimized in seismic data are extracted; according to the sample data, the weight values of the seismic attributes to be optimized are calculated; and the weight values of the seismic attributes to be optimized are sorted. Quantitative analysis is carried out on the extracted weight data of the seismic attributes to be optimized. A mathematical method is used to calculate the weight values of the seismic attributes to be optimized. According to the size of the weight values, the seismic attributes with small weight values are removed. The seismic attributes with large weight values are kept as optimized seismic attributes. Compared with an expertise optimization method, a mathematical optimization method has more adequate theoretical proof, a more rigorous derivation process and a more accurate optimization result.

Description

technical field [0001] The invention relates to the technical field of reservoir prediction in geophysical prospecting, in particular to a seismic attribute optimization method and device. Background technique [0002] Seismic data carry a large amount of reservoir geological information, and seismic reservoir prediction has become an important means for people to understand and detect oil and gas reservoirs. In the stage of geological exploration, predicting the spatial changes of reservoirs can quickly and efficiently discover oil and gas fields and improve exploration efficiency; in the stage of oil and gas field development, reservoir prediction can help formulate a reasonable development plan. The multi-information comprehensive prediction method is often used in reservoir prediction, and the key to the success of the multi-information comprehensive prediction method is to extract and optimize seismic attributes related to geological characteristics. The reason for opt...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28
Inventor 熊伟詹仕凡万忠宏白雪莲幸华刚左红光
Owner BC P INC CHINA NAT PETROLEUM CORP
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