نشریه علوم زمین خوارزمی

نشریه علوم زمین خوارزمی

بررسی رفتار سازند کژدمی در زایش هیدروکربور با استفاده ازمدل سینتیکی آرنیوس در برخی میادین نفتی جنوب غرب ایران

نویسندگان
دانشگاه بین المللی امام خمینی (ره)
چکیده
در این مطالعه ارزیابی رسوبات سازند کژدمی به‌ عنوان سنگ‌ منشا احتمالی، در میدان­های نفتی اهواز، آغاجاری، پارسی­، کیلورکریم و مسجد سلیمان در حوضه زاگرس واقع در جنوب غرب ایران انجام گرفت. برای این منظور از مدل سینتیکی آرنیوس جهت ارزیابی بلوغ سنگ منشاء و همچنین بررسی زایش نفت استفاده شد. بر اساس اطلاعات بدست آمده، کروژن غالب در سازند کژدمی از نوع IIاست. همچنین بر اساس مقادیر بدست آمده از پیرولیز راک-اول، این سازند به طور کامل وارد پنجره نفتی شده و دارای بالایی است. از این رو کروژن این سازند، در طبقه­بندی بسیار خوب قرار گرفته که از پتانسیل هیدروکربور­زایی بسیار خوبی نیز برخوردار است. در این مطالعه بر اساس مدل­ سینتیکی آرنیوس نیز نتایج مشابهی بدست آمد. بر این اساس، نرخ تبدیل هیدروکربور در میدان­های مختلف در محدوده 66 تا 100 درصد قرار گرفت. این تغییرات عمدتاً ناشی از تاریخچه تدفین متفاوت، در میدان­های مورد مطالعه بوده است.
کلیدواژه‌ها

عنوان مقاله English

Investigation of Kazhdumi Formation Behavior in Oil Generation by Arrhenius Kinetic Model in Some Oil Fields, Southwest of Iran

نویسندگان English

Saeedeh senemari
Bijan Maleki
Abouzar Bazvandi
Mohammad Javad Yousefzadeh
Imam Khomeini International University
چکیده English

In this study, the sediments of Kazhdumi Formation were evaluated as a possible source rock in Ahwaz, Aghajari, Parsi, Kilorkrim and Masjed Soleiman oil fields in Zagros basin located in southwestern Iran. For this purpose, the Arrhenius kinetic model was used to evaluate the maturity of the source rock as well as to investigate oil generation. According to the information obtained, the dominant kerogen in the Kazhdumi Formation is type II. Also, based on the values obtained from the Rock-Eval pyrolysis, this Formation has fully entered the oil window and has a high­ . Therefore, the kerogen of this Formation was classified in very good source rock, which has a very good hydrocarbon potential. Similar results were obtained in this study based on the Arneus kinetic model. Accordingly, the Transformation rateof hydrocarbons in different oil fields were the range of 66 to 100%. These changes are mainly due to different burial history in the oilfields studied.

کلیدواژه‌ها English

Arrhenius model
oil field
Kazhdumi Formation
Middle Zagros
History of burial
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