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Detection method for seismic data abnormal measurement point

A technology of seismic data and detection method, which is applied in the field of seismic data processing, preprocessing and maintaining amplitude processing, and detection of seismic data abnormal measurement points. Effect

Pending Publication Date: 2019-01-15
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is still a lack of analysis techniques based on the macroscopic distribution of measuring points.

Method used

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  • Detection method for seismic data abnormal measurement point
  • Detection method for seismic data abnormal measurement point
  • Detection method for seismic data abnormal measurement point

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments thereof. The schematic embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

[0045] like figure 1 As shown, a seismic data anomaly detection method, figure 1 It is a flow chart of the seismic data abnormal measuring point detection method of the present invention, comprising the following steps:

[0046] Step 101, establishing an energy time profile according to the measuring points, wherein the measuring points include shot points and receiving points;

[0047] Step 102, establishing an energy distribution histogram according to the energy statistical relationship, and determining a detection threshold;

[0048] Step 103, processing abnormal measurement points according to the evaluation criteria.

[0049] In step 1, according to the position of the ...

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Abstract

The invention discloses a detection method for a seismic data abnormal measurement point. The method comprises the three main steps of building an energy time profile and an energy plan graph according to the measurement point (a shot point and a receiving point); building an energy distribution histogram according to an energy counting relation, and determining a detection threshold; and processing the abnormal measurement point according to an evaluation rule. According to the detection method of the seismic data abnormal measurement point, a suspected abnormal measurement point is automatically detected and picked up with regard to the problem of abnormal amplitude of super-large scale seismic data, so that high-efficiency quality control is achieved, and true and reliable foundation document is provided for earthquake processing.

Description

technical field [0001] The invention relates to the technical field of seismic data processing, in particular to on-site processing, preprocessing and amplitude-maintaining processing of seismic data, and in particular to a method for detecting abnormal seismic data points. Background technique [0002] Abnormal amplitudes have adverse effects on seismic processing, which will not only cause migration and arcing, but also reduce the accuracy of calculating deconvolution operators and estimating surface-consistent amplitude compensation factors, and damage the processing effect. Therefore, the primary task of seismic processing is Remove outliers. The abnormal measuring points show extremely large amplitude and extremely small amplitude, and the harm of extremely small abnormal amplitude cannot be ignored, because after the later surface consistent amplitude compensation, it will participate in superposition and migration with the same weight. [0003] At present, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30
CPCG01V1/301
Inventor 王有新孙朋朋王常波葛大明王磊揭景荣
Owner CHINA PETROLEUM & CHEM CORP
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