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Interwell connectivity, an important element in reservoir characterization, especially for water flooding, is used to make decisions for better oil production. The existing methods in literature directly use related data of wells to infer interwell connectivity, but they ignore the influence between different wells. The connection of one well to more than two wells (as is often true in the oil field well pattern) will impact the accuracy of the connectivity analysis. To address this challenge, this paper proposes the Particle Swarm Optimization-based CatBoost for Interwell Connectivity (PSOC4IC) based on relative features to analyze interwell connectivity with the combination of joint mutual information maximization-based denoising sparse autoencoder for inter-feature construction and extraction and PSO-based CatBoost (PSO-CatBoost) for connectivity prediction with high-dimensional noise data. The experimental results show that the PSOC4IC improves analysis accuracy.
Interwell connectivity, an important element in reservoir characterization, especially for water flooding, is used to make decisions for better oil production. The existing methods in literature directly use related data of wells to infer interwell connectivity, but they ignore the influence between different wells. The connection of one well to more than two wells (as is often true in the oil field well pattern) will impact the accuracy of the connectivity analysis. To address this challenge, this paper proposes the Particle Swarm Optimization-based CatBoost for Interwell Connectivity (PSOC4IC) based on relative features to analyze interwell connectivity with the combination of joint mutual information maximization-based denoising sparse autoencoder for inter-feature construction and extraction and PSO-based CatBoost (PSO-CatBoost) for connectivity prediction with high-dimensional noise data. The experimental results show that the PSOC4IC improves analysis accuracy.
This work was supported by the Ministry of Industry and Information Technology’s 2018 Big Data Industry Development Pilot Demonstration Project "Demonstration Project of Oil and Gas Exploration and Development Innovation and Efficiency Enhancement Based on the Application of Big Data" (Letter of the Ministry of Industry and Information Technology [2018] No. 339), the Ministry of Industry and Information Technology Demonstration Project Supporting Project "Petroleum Exploration and Development Big Data and Artificial Intelligence Key Technology" (No. 2018D-5010-16), the Innovation Project of PetroChina Science and Technology Research Institute Co., Ltd. "Exploration and Research on Predicting the Remaining Oil Saturation of Each Layer under the Condition of Co-Injection by Applying Big Data Deep Learning Method" (No. 2017ycq02), the National Key R&D Program (No. 2018YFE0116700), and the Shandong Provincial Natural Science Foundation (No. ZR2019MF049, Parallel Data-Driven Fault Prediction under Online-Offline Combined Cloud Computing Environment).
The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).