LAE-based inter-well connectivity analysis method and device

• Main Authors: WANG YANLI, SUN HAIYAN, LI AIHUA, NI TIANLU, NING WENYAN, WANG QING, XU SIYUAN, LI CHUNCHEN, SUN BINGBING, SUN QI
• Format: Patent
• Language: Chinese; English
• Published: 03.03.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses an LAE-based inter-well connectivity analysis method and an LAE-based inter-well connectivity analysis device. According to historical injection-production data of an oil field well group, LSTM-AE is used for encoding a water injection rate sequence, vector representation of the water injection rate sequence is constructed, a vector is input into a full-connection layer, and the liquid production capacity of a production well is predicted. The water injection rate of each water well in a well group is used as an input variable of sensitivity analysis, the sensitivity of the input variable of a liquid production capacity prediction model based on LSTM-AE is analyzed by applying a global sensitivity analysis method EFAST, and the influence of the water injection rate of each water well and the coupling effect between the water injection rates of the water wells on a model result is obtained by decomposing the variance of the model prediction result. And calculating a parameter sensitivit