Thin layer prediction method and device

A prediction method and thin layer technology, applied in the field of petroleum seismic exploration, can solve the problems of low prediction accuracy and large error, and achieve the effect of solving the low prediction accuracy

Active Publication Date: 2018-02-13
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0005] The implementation mode of this application provides a thin-layer prediction method and device to solve the technical problems of low prediction accuracy and large errors in the existing thin-layer prediction methods

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  • Thin layer prediction method and device
  • Thin layer prediction method and device

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[0066] 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.

[0067] Considering the existing thin layer prediction methods, because the characteristics of different wave impedance types are not analyzed, the corresponding tuning effect analysis and thin layer prediction are not carried out for layers of different wave impedance types, but the same wave impedance is applied The method corresponding ...

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Abstract

The invention provides a thin layer prediction method and a device, wherein the method includes that log data and seismic data of a target layer are obtained; wave impedance type of the target layer is obtained according to the log data; a corresponding wave impedance model is established according to the wave impedance type; a corresponding tuning model is ensured according to the wave impedancemodel; the thin layer prediction is conducted according to the tuning model and the seismic data. The corresponding wave impedance type of the target layer is distinguished through the seismic data, and then the corresponding wave impedance model and the tuning model is ensured according to the different wave impedance types, which can make the thin layer prediction more accurately. So the existing technical problems of low accuracy and large error in the thin layer prediction are solved. And the technical effect of tuning effect analysis and thin layer prediction can be achieved for differenttypes of the wave impedance thin layer.

Description

technical field [0001] The present application relates to the technical field of petroleum seismic exploration, in particular to a thin layer prediction method and device. Background technique [0002] In the process of petroleum seismic exploration, for example, when predicting thin layers in a certain area, it is often necessary to combine well logging data and seismic data for comprehensive interpretation of seismic data. Specifically, for example, the tuning effect of the thin layer in a certain area is specifically analyzed based on well logging data and seismic data, and thin layer prediction is performed based on the analysis results. Wherein, the above-mentioned thin layer can generally be regarded as: a layer corresponding to when a layer with a thickness of λ / 4 (wherein, the above-mentioned λ represents a wavelength of seismic wave) is embedded in the middle of media with different wave impedances. The above-mentioned tuning effect generally refers to: the coheren...

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Application Information

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IPC IPC(8): G01V1/28
CPCG01V1/282
Inventor 马跃华白玉花李振永李玉海李廷辉杨峰
Owner BC P INC CHINA NAT PETROLEUM CORP
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