International Journal of Oil, Gas and Coal Engineering

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Mathematical Correlation Predicting Stock Tank Oil Density for Egyptian Crude Oils at Standard Conditions

Received: 02 August 2013    Accepted: 20 August 2014    Published: 30 August 2014
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Abstract

Liquid density is one of the most important governing physical parameter of the fluid flow. Generally, oil density measured at standard conditions (14.65 psia and 60 °F) via Density Meter. Since there is a remarkable difference between calculated density from compositional analysis and measured one at standard conditions. So it is of great importance to use an accurate correlation to calculate the oil density at standard conditions. The proposed correlation correlates measured density with measured molecular weight, calculated molecular weight and calculated density which calculated from compositional analysis. Here, based on measured Egyptian oil reservoirs data; new correlation has been developed for prediction of oil density at standard conditions (14.65 psia and 60 °F). Validity and accuracy of this correlation has been confirmed by comparing the obtained results of this correlation with experimental data for Egyptian oil samples. Checking the results of this correlation shows that the developed correlation results are in a high agreement with the experimental data.

DOI 10.11648/j.ogce.20140204.11
Published in International Journal of Oil, Gas and Coal Engineering (Volume 2, Issue 4, July 2014)
Page(s) 55-58
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

Keywords

Oil Density, PVT Correlation, API Gravity, Compositional Analysis

References
[1] Beggs, H. D. and Robinson J. R. “Estimating the viscosity of crude oil systems”. JPT. 1975; 9: 1140– 1141.
[2] Al-Marhoun, M. A. “PVT correlations for Middle East crude oils”. J. Pet. Technol. 1988 ; 40 (5) : 650 – 666.
[3] Hanafy, H.H., Macary S.M., ElNady Y.M., Bayomi A.A. and El-Batanoney M.H. “A New Approach for Predicting the Crude Oil Properties.” SPE 37439. 9-11 March 1997; presented at the SPE production operation symposium held in Oklahoma City, Oklahoma.
[4] El-hoshoudy,A. N., Farag A.B., Ali O.I.M., El-Batanoney M. H., Desouky S.E.M. and Ramzi M. “New Correlations for Prediction of Viscosity and Density of Egyptian Oil Reservoirs.” Fuel May 2013; 112:277-282.
[5] Macary,S.M. and El-Batanoney M.H. “Derivation of PVT Correlations for the Gulf of Suez Crude Oils.” EGPC 11th Petroleum Exploration and Production Conference, 1992.
[6] Hanafy, H.H., Macary S.M., ElNady Y.M., Bayomi A.A. and El-Batanoney M.H. “Empirical PVT Correlations Applied to Egyptian Crude Oils Exemplify Significance of Using Regional Correlations.” SPE 37295, 18-21 February 1997; presented at the SPE international symposium on oil field chemistry held in Houston, Texas.
[7] Glaso, O. “Generalized pressure–volume–temperature correlation for crude oil system”. JPT. 1980; 2: 785– 795.
[8] Dokla, M.E. and Osman M.E. “Correlations of PVT Properties for the UAE Crudes,” SPE Formation Evaluation, March 1992; 7: 41-46.
[9] Labedi, R., “Improved correlations for predicting the viscosity of light crudes”. J.Pet.Sci. Eng. 1992; 8: 221– 234.
[10] Younger, M.S.“Handbook for Linear Regression”. USA.Wadsworth, Inc., Belmont 1999.
[11] ASTM D2224-78 “Method of Test for Mean Molecular Weight of Mineral Insulating Oils by the Cryoscopic Method”. 1983.
[12] Standing M. B. and Katz D. L. “Density of Natural Gases”. Transactions of the AIME, 1942; 146:140:149.
Author Information
  • Department of Production, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt.

  • Department of Production, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt.

  • Department of Production, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt.

  • Department of Production, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt.

  • Department of Production, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt.

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  • APA Style

    A. N. El-Hoshoudy, S. E. M. Desouky, M. A. Betiha, S. Abdelraouf, M. Elaily. (2014). Mathematical Correlation Predicting Stock Tank Oil Density for Egyptian Crude Oils at Standard Conditions. International Journal of Oil, Gas and Coal Engineering, 2(4), 55-58. https://doi.org/10.11648/j.ogce.20140204.11

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    ACS Style

    A. N. El-Hoshoudy; S. E. M. Desouky; M. A. Betiha; S. Abdelraouf; M. Elaily. Mathematical Correlation Predicting Stock Tank Oil Density for Egyptian Crude Oils at Standard Conditions. Int. J. Oil Gas Coal Eng. 2014, 2(4), 55-58. doi: 10.11648/j.ogce.20140204.11

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    AMA Style

    A. N. El-Hoshoudy, S. E. M. Desouky, M. A. Betiha, S. Abdelraouf, M. Elaily. Mathematical Correlation Predicting Stock Tank Oil Density for Egyptian Crude Oils at Standard Conditions. Int J Oil Gas Coal Eng. 2014;2(4):55-58. doi: 10.11648/j.ogce.20140204.11

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  • @article{10.11648/j.ogce.20140204.11,
      author = {A. N. El-Hoshoudy and S. E. M. Desouky and M. A. Betiha and S. Abdelraouf and M. Elaily},
      title = {Mathematical Correlation Predicting Stock Tank Oil Density for Egyptian Crude Oils at Standard Conditions},
      journal = {International Journal of Oil, Gas and Coal Engineering},
      volume = {2},
      number = {4},
      pages = {55-58},
      doi = {10.11648/j.ogce.20140204.11},
      url = {https://doi.org/10.11648/j.ogce.20140204.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ogce.20140204.11},
      abstract = {Liquid density is one of the most important governing physical parameter of the fluid flow. Generally, oil density measured at standard conditions (14.65 psia and 60 °F) via Density Meter. Since there is a remarkable difference between calculated density from compositional analysis and measured one at standard conditions. So it is of great importance to use an accurate correlation to calculate the oil density at standard conditions. The proposed correlation correlates measured density with measured molecular weight, calculated molecular weight and calculated density which calculated from compositional analysis. Here, based on measured Egyptian oil reservoirs data; new correlation has been developed for prediction of oil density at standard conditions (14.65 psia and 60 °F). Validity and accuracy of this correlation has been confirmed by comparing the obtained results of this correlation with experimental data for Egyptian oil samples. Checking the results of this correlation shows that the developed correlation results are in a high agreement with the experimental data.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Mathematical Correlation Predicting Stock Tank Oil Density for Egyptian Crude Oils at Standard Conditions
    AU  - A. N. El-Hoshoudy
    AU  - S. E. M. Desouky
    AU  - M. A. Betiha
    AU  - S. Abdelraouf
    AU  - M. Elaily
    Y1  - 2014/08/30
    PY  - 2014
    N1  - https://doi.org/10.11648/j.ogce.20140204.11
    DO  - 10.11648/j.ogce.20140204.11
    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  - 55
    EP  - 58
    PB  - Science Publishing Group
    SN  - 2376-7677
    UR  - https://doi.org/10.11648/j.ogce.20140204.11
    AB  - Liquid density is one of the most important governing physical parameter of the fluid flow. Generally, oil density measured at standard conditions (14.65 psia and 60 °F) via Density Meter. Since there is a remarkable difference between calculated density from compositional analysis and measured one at standard conditions. So it is of great importance to use an accurate correlation to calculate the oil density at standard conditions. The proposed correlation correlates measured density with measured molecular weight, calculated molecular weight and calculated density which calculated from compositional analysis. Here, based on measured Egyptian oil reservoirs data; new correlation has been developed for prediction of oil density at standard conditions (14.65 psia and 60 °F). Validity and accuracy of this correlation has been confirmed by comparing the obtained results of this correlation with experimental data for Egyptian oil samples. Checking the results of this correlation shows that the developed correlation results are in a high agreement with the experimental data.
    VL  - 2
    IS  - 4
    ER  - 

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