Machine learning estimation of crude oil viscosity as function of API, temperature, and oil composition: Model optimization and design space

Daihong Li, Xiaoyu Zhang and Qian Kang

PLOS ONE, 2023, vol. 18, issue 2, 1-14

Abstract: Measurement of viscosity of crude oil is critical for reservoir simulators. Computational modeling is a useful tool for correlation of crude oil viscosity to reservoir conditions such as pressure, temperature, and fluid compositions. In this work, multiple distinct models are applied to the available dataset to predict heavy-oil viscosity as function of a variety of process parameters and oil properties. The computational techniques utilized in this work are Decision Tree (DT), MLP, and GRNN which were utilized in estimation of heavy crude oil samples collected from middle eastern oil fields. For the estimation of viscosity, the firefly algorithm (FA) was employed to optimize the hyper-parameters of the machine learning models. The RMSE error rates for the final models of DT, MLP, and GRNN are 40.52, 25.08, and 30.83, respectively. Also, the R2-scores are 0.921, 0. 978, and 0.933, respectively. Based on this and other criteria, MLP is chosen as the best model for this study in estimating the values of crude oil viscosity.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0282084

DOI: 10.1371/journal.pone.0282084

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