Well leakage risk horizon prediction method and system based on seismic attribute body

The invention relates to the technical field of oil and gas well engineering, and discloses a well leakage risk horizon prediction method and system based on a seismic attribute volume, and the method comprises the steps: obtaining seismic inversion data; performing feature correlation analysis on t...

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Hauptverfasser: FU XING, ZHOU CHANGSUO, YUAN JUNLIANG, WAN XIAOJIAN, XIE RENJUN, ZHANG XIN, LU YUNHU, MA YINGWEN, TANG HUAIGU
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to the technical field of oil and gas well engineering, and discloses a well leakage risk horizon prediction method and system based on a seismic attribute volume, and the method comprises the steps: obtaining seismic inversion data; performing feature correlation analysis on the well leakage point location based on the seismic inversion data to obtain related seismic attribute volume data; and according to the well leakage point location label and the related seismic attribute volume data, training to obtain a well leakage risk horizon prediction model which is used for predicting a well leakage risk horizon and a leakage probability. According to the method, related seismic attribute volume data with relatively high correlation with the well leakage risk are optimized through feature correlation analysis, seismic attribute volumes which are meaningless to a prediction result or can generate adverse effects on the prediction result are eliminated, and the optimized related seismic attri