The precipitation and deposition of wax has remained a major challenge that the oil industries is faced with during the production of waxy crude. This problem is simply an issue from the wellbore to the surface facilities. As a result of this, millions of dollars has been invested in remedial operations. In this research, a predictive model that uses thermodynamic relationship in predicting precipitation of wax has been developed. K-values for the solid-liquid equilibrium is described using solubility parameter, melting point temperature, enthalpy of fusion, and the molar volume for the components. The weight fraction was used to describe the wax mixture. Experimental data from three oil mixtures were used in comparing the model predicted wax appearance temperature (WAT). For oil mixA, the experimental value is 294.15K; Pauly et al predicted 302.15K while this work predicted 301.21K. For oil mixB, the experimental value is 300.15K; Pauly et al predicted 310.15K while this work predicted 308.91K. For oil mixC, the experimental value is 298.15K; Pauly et al predicted 302.15K while this work predicted 300.38K. The obtained results from this research confirmed the capability of the model in predicting Wax Appearance Temperature. A more conservative value for the WAT was predicted which is an improvement.
| Published in | International Journal of Oil, Gas and Coal Engineering (Volume 9, Issue 1) |
| DOI | 10.11648/j.ogce.20210901.12 |
| Page(s) | 6-11 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Thermodynamic Model, Wax Appearance Temperature, Phase Equilibrium, Flash Calculation, Wax Deposition
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APA Style
Onyejekwe Ifeanyichukwu Michael, Duru Ugochukwu Ilozuruike, Obibuike Ubanozie Julian, Uwaezuoke Nnaemeka. (2021). Prediction of Wax Precipitation Temperature in Petroleum Fluids. International Journal of Oil, Gas and Coal Engineering, 9(1), 6-11. https://doi.org/10.11648/j.ogce.20210901.12
ACS Style
Onyejekwe Ifeanyichukwu Michael; Duru Ugochukwu Ilozuruike; Obibuike Ubanozie Julian; Uwaezuoke Nnaemeka. Prediction of Wax Precipitation Temperature in Petroleum Fluids. Int. J. Oil Gas Coal Eng. 2021, 9(1), 6-11. doi: 10.11648/j.ogce.20210901.12
AMA Style
Onyejekwe Ifeanyichukwu Michael, Duru Ugochukwu Ilozuruike, Obibuike Ubanozie Julian, Uwaezuoke Nnaemeka. Prediction of Wax Precipitation Temperature in Petroleum Fluids. Int J Oil Gas Coal Eng. 2021;9(1):6-11. doi: 10.11648/j.ogce.20210901.12
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Download@article{10.11648/j.ogce.20210901.12,
author = {Onyejekwe Ifeanyichukwu Michael and Duru Ugochukwu Ilozuruike and Obibuike Ubanozie Julian and Uwaezuoke Nnaemeka},
title = {Prediction of Wax Precipitation Temperature in Petroleum Fluids},
journal = {International Journal of Oil, Gas and Coal Engineering},
volume = {9},
number = {1},
pages = {6-11},
doi = {10.11648/j.ogce.20210901.12},
url = {https://doi.org/10.11648/j.ogce.20210901.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20210901.12},
abstract = {The precipitation and deposition of wax has remained a major challenge that the oil industries is faced with during the production of waxy crude. This problem is simply an issue from the wellbore to the surface facilities. As a result of this, millions of dollars has been invested in remedial operations. In this research, a predictive model that uses thermodynamic relationship in predicting precipitation of wax has been developed. K-values for the solid-liquid equilibrium is described using solubility parameter, melting point temperature, enthalpy of fusion, and the molar volume for the components. The weight fraction was used to describe the wax mixture. Experimental data from three oil mixtures were used in comparing the model predicted wax appearance temperature (WAT). For oil mixA, the experimental value is 294.15K; Pauly et al predicted 302.15K while this work predicted 301.21K. For oil mixB, the experimental value is 300.15K; Pauly et al predicted 310.15K while this work predicted 308.91K. For oil mixC, the experimental value is 298.15K; Pauly et al predicted 302.15K while this work predicted 300.38K. The obtained results from this research confirmed the capability of the model in predicting Wax Appearance Temperature. A more conservative value for the WAT was predicted which is an improvement.},
year = {2021}
}
TY - JOUR T1 - Prediction of Wax Precipitation Temperature in Petroleum Fluids AU - Onyejekwe Ifeanyichukwu Michael AU - Duru Ugochukwu Ilozuruike AU - Obibuike Ubanozie Julian AU - Uwaezuoke Nnaemeka Y1 - 2021/03/04 PY - 2021 N1 - https://doi.org/10.11648/j.ogce.20210901.12 DO - 10.11648/j.ogce.20210901.12 T2 - International Journal of Oil, Gas and Coal Engineering JF - International Journal of Oil, Gas and Coal Engineering JO - International Journal of Oil, Gas and Coal Engineering SP - 6 EP - 11 PB - Science Publishing Group SN - 2376-7677 UR - https://doi.org/10.11648/j.ogce.20210901.12 AB - The precipitation and deposition of wax has remained a major challenge that the oil industries is faced with during the production of waxy crude. This problem is simply an issue from the wellbore to the surface facilities. As a result of this, millions of dollars has been invested in remedial operations. In this research, a predictive model that uses thermodynamic relationship in predicting precipitation of wax has been developed. K-values for the solid-liquid equilibrium is described using solubility parameter, melting point temperature, enthalpy of fusion, and the molar volume for the components. The weight fraction was used to describe the wax mixture. Experimental data from three oil mixtures were used in comparing the model predicted wax appearance temperature (WAT). For oil mixA, the experimental value is 294.15K; Pauly et al predicted 302.15K while this work predicted 301.21K. For oil mixB, the experimental value is 300.15K; Pauly et al predicted 310.15K while this work predicted 308.91K. For oil mixC, the experimental value is 298.15K; Pauly et al predicted 302.15K while this work predicted 300.38K. The obtained results from this research confirmed the capability of the model in predicting Wax Appearance Temperature. A more conservative value for the WAT was predicted which is an improvement. VL - 9 IS - 1 ER -
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