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A seismic waveform matching method and device

A technology of seismic waveform and matching method, which is applied in seismic signal processing and other directions, and can solve problems such as noise interference and matching errors

Active Publication Date: 2019-02-15
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For seismic data with a low signal-to-noise ratio, using existing methods for seismic waveform matching, the matching process may be susceptible to noise interference, and matching errors may occur

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  • A seismic waveform matching method and device
  • A seismic waveform matching method and device
  • A seismic waveform matching method and device

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Embodiment Construction

[0066] Embodiments of the present application provide a seismic waveform matching method and device.

[0067] 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.

[0068] An embodiment of the present application provides a seismic waveform matching method. The method may be provided with seismic data, wherein the seismic data may include: reference seismic trace data and target seismic trace data....

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Abstract

The embodiment of the invention discloses a seismic waveform matching method and device. The method comprises the steps that a reference seismic waveform sequence is acquired from reference seismic trace data, and a target seismic waveform sequence is acquired from the target seismic trace data; the sampling time periods respectively corresponding to the reference seismic waveform sequence and the target seismic waveform sequence are the same; a reference seismic sparse pulse sequence and a target seismic sparse pulse sequence are respectively determined from the reference seismic waveform sequence and the target seismic waveform sequence; the waveform distance type and a waveform matching step size set are determined; a dynamic time warp template is established based on the waveform matching step size set; the dynamic time warp template is used for representing a search pattern used in a determined waveform matching path process; and based on the waveform distance type and the dynamic time warp template, the reference seismic sparse pulse sequence and the target seismic sparse pulse sequence are matched to acquire a target seismic waveform matching path sequence. According to the technical scheme provided by the invention, the accuracy of seismic waveform matching can be improved.

Description

technical field [0001] The present application relates to the technical field of seismic data processing and analysis, in particular to a seismic waveform matching method and device. Background technique [0002] Determining the structural form of strata based on seismic data is one of the main purposes of seismic exploration, and this process is often called seismic-tectonic interpretation. In the process of seismic tectonic interpretation, for example, layer interpretation or fault interpretation, it is necessary to match the seismic waveforms corresponding to different seismic traces in the seismic data. Seismic waveform matching refers to the analysis of the corresponding relationship between the feature points of two seismic waveforms to extract the matching relationship sequence of the feature points of the seismic waveform. [0003] The main process of the existing seismic waveform matching method is to calculate the distance between each target sampling point on the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 陈茂山
Owner BC P INC CHINA NAT PETROLEUM CORP