Abnormal seismic trace automatic discriminating method and device

A seismic trace and anomalous ground technology, applied in seismic signal processing, etc., can solve the problems of slow computing speed, complicated computing process, and low quality control efficiency, and achieve the effect of simple method and high computing efficiency
CN105785437AActive Publication Date: 2016-07-20BC P INC CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2016-07-20

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Abstract

The present invention relates to the seismic data quality monitoring field, in particular to an abnormal seismic trace automatic discriminating method and device. The method comprises the steps of obtaining the sampling point truth-value of a seismic trace; dividing the seismic trace into the time window data which is continuous and has the equal width from the zero hour, and according to the sampling point truth value, calculating the zero-crossing times of each time window data; summing the zero-crossing times of each time window data to obtain the total zero-crossing times of the seismic trace; comparing the total zero-crossing times with a first preset value; when the total zero-crossing times is less than the first preset value, determining that the seismic trace is an abnormal seismic trace of a dead trace type. According to the embodiment of the present invention, according to the total zero-crossing times characteristic of the abnormal seismic trace of the dead trace type, by just gathering and comparing the zero-crossing times simply during the discrimination process, and being compared with the prior art, the method of the embodiment of the present invention is simple, is high in operation efficiency, and satisfies the demand of the mass seismic data quality control.
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Description

technical field

[0001] The invention relates to the field of seismic data quality monitoring, in particular to a method and device for automatic identification of abnormal seismic traces. Background technique

[0002] In the process of field seismic acquisition and exploration, due to the influence of surrounding environmental conditions or its own equipment, abnormal seismic traces appear in the collected seismic data, which seriously affects the appearance and quality of seismic records, and also affects the normality of seismic data. Handling and handling quality. In order to ensure the quality of seismic records, it is necessary to detect and rectify various abnormal seismic traces in time. In the past construction, the traditional method is to judge the abnormal seismic traces in the seismic data by human eyes, but this method will not only increase the labor intensity of the quality control personnel, but also may cause misjudgment due to experience and other reasons;...

Claims

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