Microfacies and depositional environment of the Asmari Formation in one of the wells in Karanj oil field, norhtern Dezful embayment, SW Iran

رخساره‌های رسوبی

Article 2, Volume 14, Issue 2 - Serial Number 27, March 2022

Document Type: Original Article

DOI: 10.22067/sed.facies.2022.47003

Authors

behzad saeedi^{* 1}; Saeedeh Senemari²; narges monjezi³

¹Research Assistant professor, Standard Research Institute, Technical and engineering faculty, Construction and mineral Department, Karaj, Iran

²Associate professor, Imam Khomeini international University Qazvin Iran

³Department of Remote sensing, Dezful Branch, Islamic Azad University, Dezful, Iran

Abstract

The Asmari Formation is an important part of Cenozoic (Oligocene-Miocene) deposits in southwestern Iran (Zagros Basin). This Formation is known as one of the most important reservoir formations in Iran. The purpose of this study is to study the Asmari Formation in the Karanj oil field in southwestern Iran, 115 km southeast of Ahvaz and 40 km east of Ramhormoz. In this study, based on the study of microscopic thin sections (including 161 thin sections of drilling cores) prepared from 225 m of underground cutting sequences of one of the wells of Karanj oil field, microfacies and depositional environment of the Asmari Formation, were fully investigated, and 10 microfacies were identified and interpreted. The depositional environment of this Formation can be classified into three sub-environments: inner ramp, middle ramp and outer ramp. The Asmari Formation in the one of wells of the Karanj oil field deposited on a carbonate ramp.

Keywords

Asmari Formation; microfacies; depositional environment; ramp; Karanj oil field

References