ervoir Oils by CPA EoS via a new Approach Based on the Asphaltene Molecular Structure

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Varamesh amir; Hosseinpour Negahdar

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: PETROLEUM RESEARCH Year:2019 | Volume:29 | Issue:106 Page(s): 54-69

Download Full-Text

Persian Verion

View:

544

Download:

Cites:

Information Journal Paper

Title

ervoir Oils by CPA EoS via a new Approach Based on the Asphaltene Molecular Structure

Author(s)

Varamesh amir | Hosseinpour Negahdar | Issue Writer Certificate

Keywords

Modeling Asphaltene PrecipitationQ1

Live OilQ1

Asphaltene Onset PressureQ1

Cubic Plus AssociationQ1

CPAQ1

Abstract

In this study, a new approach based on the molecular structure of asphaltene is developed to model asphaltene precipitation by the Cubic Plus Association equation of state (CPA EoS). The accuracy of the proposed approach has been proved by reproducing the experimental data of asphaltene precipitation in two different Live Oil samples. In this approach, five similar association sites were assigned to the asphaltene molecules. Self-association between the asphaltene molecules and cross-association between the asphaltene and heavy hydrocarbon component were considered. The critical pressure of the heavy component was tuned using a single experimental bubble point pressure of the oils. Results revealed that the approach is able to predict the bubble point curve of the oil samples with the average absolute relative error (AARE) of lower than 1. 54%. To model the asphaltene onset point, the cross-association energy between the asphaltene and the heavy component () was considered as the only tuning parameter of the model. It was assumed that the was temperature-dependent and three different dependency were considered. The results showed that the cross-association energy is inversely proportional to absolute temperature. The CPA EoS reproduces the asphaltene onset point of the oil samples with the AARE of lower than 5. 50%. At reservoir temperature, the Asphaltene Onset Pressure for the two reservoir oil samples is 527 and 262 bar which is predicted by the CPA EoS as 502. 5 and 250. 4 bar respectively. As a conclusion, the proposed approach can not only predict the bubble point pressure but also accurately predict the general trend of Asphaltene Onset Pressure with temperature.

Cites

No record.

References

No record.

Cite

APA: Copy

Varamesh, amir, & Hosseinpour, Negahdar. (2019). ervoir Oils by CPA EoS via a new Approach Based on the Asphaltene Molecular Structure. PETROLEUM RESEARCH, 29(106 ), 54-69. SID. https://sid.ir/paper/114603/en

Vancouver: Copy

Varamesh amir, Hosseinpour Negahdar. ervoir Oils by CPA EoS via a new Approach Based on the Asphaltene Molecular Structure. PETROLEUM RESEARCH[Internet]. 2019;29(106 ):54-69. Available from: https://sid.ir/paper/114603/en

IEEE: Copy

amir Varamesh, and Negahdar Hosseinpour, “ervoir Oils by CPA EoS via a new Approach Based on the Asphaltene Molecular Structure,” PETROLEUM RESEARCH, vol. 29, no. 106 , pp. 54–69, 2019, [Online]. Available: https://sid.ir/paper/114603/en

Related Journal Papers