Utilization of LSSVM algorithm for estimating synthetic natural gas density

In the gas engineering the accurate calculation for pipeline and gas reservoirs requires great accuracy in estimation of gas properties. The gas density is one of major properties which are dependent to pressure, temperature and composition of gas. In this work, the Least squares support vector mach...

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Bibliographic Details
Published in:Petroleum science and technology 2018-06, Vol.36 (11), p.807-812
Main Authors: Razavi, Razieh, Kardani, Mohammad Navid, Ghanbari, Alireza, Lariche, Milad Janghorban, Baghban, Alireza
Format: Article
Language:English
Subjects:
Algorithms
Gas density
Gas pipelines
Mathematical analysis
Natural gas
Predictions
Root-mean-square errors
Substitute natural gas
Temperature dependence
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Summary:In the gas engineering the accurate calculation for pipeline and gas reservoirs requires great accuracy in estimation of gas properties. The gas density is one of major properties which are dependent to pressure, temperature and composition of gas. In this work, the Least squares support vector machine (LSSVM) algorithm was utilized as novel predictive tool to predict natural gas density as function of temperature, pressure and molecular weight of gas. A total number of 1240 experimental densities were gathered from the literature for training and validation of LSSVM algorithm. The statistical indexes, Root mean square error (RMSE), coefficient of determination (R2) and average absolute relative deviation (AARD) were determined for total dataset as 0.033466, 1 and 0.0025686 respectively. The graphical comparisons and calculated indexes showed that LSSVM can be considered as a powerful and accurate tool for prediction of gas density.
ISSN:1091-6466
1532-2459
DOI:10.1080/10916466.2018.1447954