基于不同机器学习模型的石油测井数据岩性分类对比研究

    Comparative study on lithology classification of oil logging data based on different machine learning models

    • 摘要: 特定的计算工具帮助地质学家识别和分类油井钻探的岩石岩性, 降低成本并提高工作效率。机器学习方法集成了大量信息, 能够高效地实现模式识别和准确决策。文章将挪威海5口油井进行岩性分类, 通过将数据随机分为训练集(70%)和测试集(30%), 利用多变量测井参数数据进行训练和验证, 对比多层感知器(MLP)、决策树、随机森林和XGboost等模型的应用效果。研究结果显示, XGBoost模型在数据的泛化性方面表现更佳, 其准确率为95%; 随机森林模型次之, 准确率为94%; 而多层感知机(MLP)和决策树模型表现出较好的鲁棒性, 准确率分别为92%和90%。

       

      Abstract: Specific computational tools assist geologists in identifying and classifying the lithology of rocks in oil well exploration, reducing costs, and enhancing operational efficiency. Machine learning methods integrate a vast amount of information, enabling efficient pattern recognition and accurate decision-making. This article categorizes the lithology of five oil wells in the Norwegian Sea, randomly dividing the data into a training set (70%) and a test set (30%). Using multivariate well log parameter data for training and validation, the application effectiveness of models such as Multilayer Perceptron (MLP), Decision Tree, Random Forest, and XGBoost is compared. The research results indicate that the XGBoost model outperforms others in terms of data generalization, achieving an accuracy of 95%. The Random Forest model follows with an accuracy of 94%. Meanwhile, Multilayer Perceptron (MLP) and Decision Tree models exhibit good robustness, with accuracies of 92% and 90%, respectively.

       

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