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Title

Investigating geochemical characteristics of the Asmari reservoir oils in Qaleh-Nar oilfield, SW Iran

Year: 1399
COI: OILBCNF02_019
Language: EnglishView: 592
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Authors

Seyed Rasoul SEYEDALI - Department of Geology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Bahram ALIZADEH - Petroleum Geology and Geochemistry Research Center (PGGRC), Shahid Chamran University of Ahvaz, Ahvaz, Iran
Ali Akbar KORDZANGENEH - Department of Petroleum Engineering, Faculty of Engineering, Islamic Azad University, Omidiyeh Branch, Ahvaz, Iran
Bahram HABIBNIA - Department of Petroleum Engineering, Ahvaz Faculty of Petroleum Engineering, Petroleum University of Technology, Ahvaz, Iran

Abstract:

A collection of 4 crude oil samples from Asmari reservoir in Qaleh-Nar oilfield (SW Iran) were subjected to the organic geochemical analyses, including SARA fractionation and gas chromatography (GC). The obtained results represent that the studied samples, which are classified as paraffinic oils on the SARA ternary diagram, are thermally mature (CPI~1) and moderately biodegraded. The pristane/phytane ratios (<1) and TAR values (~0.5) as well as the cross-plots of Pr/nC17 vs. Ph/nC18 and Pr/Ph vs. CPI show that the crude oil samples have been originated from a marine source rock mainly containing type II kerogen, deposited in the reducing condition. The star diagram based on Pr/nC17, Ph/nC18 and the ratios of odd- to even-numbered n-alkanes in the range nC17-nC32 for two oil samples taken from western and eastern flanks of the oilfield shows a good correlation between them, indicating that the Asmari reservoir oils in Qaleh-Nar oilfield have a common genetic family, derived from the same source rock.

Keywords:

Dezful Embayment, Qaleh-Nar oilfield, Asmari reservoir, SARA analysis, gas chromatography (GC), petroleum geochemistry

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This Paper COI Code is OILBCNF02_019. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1035378/

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SEYEDALI, Seyed Rasoul and ALIZADEH, Bahram and KORDZANGENEH, Ali Akbar and HABIBNIA, Bahram,1399,Investigating geochemical characteristics of the Asmari reservoir oils in Qaleh-Nar oilfield, SW Iran,Second International Conference on Technology Development in Oil, Gas, Refining and Petrochemicals,Tehran,https://civilica.com/doc/1035378

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Type of center: دانشگاه دولتی
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