petroleum inclusion in one of the fields in southern Iran

Articles in Press

Authors

1 Department of Geology, Faculty of Earth Sciences, Shahid Chamran University, Ahvaz

2 member

3 Department of Petroleum Geology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, IRAN.

4 Department of Petroleum Geology and Sedimentary Basins, Faculty of Earth Sciences, Shahid Chamran Ahvaz University, Ahvaz, Iran

5 Department of Geology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran

10.22055/aag.2025.48420.2487

Abstract

Fluid inclusion are a valuable treasure of the physicochemical conditions at the time of mineral formation, from which we can use information such as burial history, maturity, determining the diagenesis environment and the degree of cementation of the reservoir. In this study, 239 double-polished sections prepared from Asmari reservoir cores of 105 wells from Ahvaz field (AZ) were used. After the preliminary investigation, 54 fluid inclusions were selected for microthermometric studies. All microthermometric data were obtained using cooling and heating operations on the involved fluids using a Linkam THMSG 600 model stage placed on an Olympus microscope. All the samples were subjected to petrography study, which is in terms of the types of single-phase gas, single-phase liquid, two-phase liquid-rich (Oil) intermediates. In terms of origin, it can be seen in different and varied types, primary and secondary false. Based on microthermometric studies, the homogeneity of oil fluid inclusions was between 62 in Saruk and 178 in Kazhdami, the melting temperature of the last crystal was between -1 and 16, and the salinity level was 1 to 9% by weight equivalent to sodium salt. By examining 239 fluid inclusions of oil from the Asmari reservoir, Azadegan North Oil, it has been determined that the most color in these samples is green with 75% of which is in the range of 30-40 API degrees and the value of 20 belongs to it.

Keywords

Main Subjects

Advanced Applied Geology

Articles in Press, Corrected Proof
Available Online from 17 May 2025

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