Sedimentary environment and sequence stratigraphy of Asmari Formation in Haftkel oilfield, (well no. 28), Dezfool embaymen, and comparing it whit Asmari Formation in Masjed-I-Soleiman oilfield (well no. 186), Khuzestan Province

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LorEstani M.; KANGAZIAN A.; SAFARI A.; NOURA M.R.

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Journal: GEOSCIENCES Year:2019 | Volume:28 | Issue:110 Page(s): 79-88

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Title

Sedimentary environment and sequence stratigraphy of Asmari Formation in Haftkel oilfield, (well no. 28), Dezfool embaymen, and comparing it whit Asmari Formation in Masjed-I-Soleiman oilfield (well no. 186), Khuzestan Province

Author(s)

LorEstani M. | KANGAZIAN A. | SAFARI A. | NOURA M.R. | Issue Writer Certificate

Keywords

Oligo-MiocenQ2

MicrofaciesQ2

Sequence stratigraphyQ2

Sedimentary EnvironmentQ2

Asmari FormationQ2

Haftkel oilfieldQ1

Masjed-I-Soleiman oilfieldsQ2

Abstract

Haftkel and Masjed-I-Soleiman oilfields, setting in Dezfool embayment at Zagros Basin, are the most important oilfilds in south-western Iran. Asmari Formation, the most famous reservoir in the Middle East, is reservoir of these oilfields. In order to palaeoenvironments and Sequence stratigraphy correlation, the subsurface sedimentary successions of the Asmari Formation have been studied using cores and thin sections obtained from the well no. 28 of Haftkel and well no. 186 of Masjed-I-Soleiman oilfields. 18 carbonate and 1 carbonate/evaporate Microfacies and 2 noncarbonated microscopic facies were recognized, based on petrographic study. These Microfacies and microscopic facies were grouped in 6 facies associations (include: Tidal Flat, Lagoon, Bar, Restricted marine, Open marine, and Mid ramp). Obtained facies associations, comparing them with standard facies models and statistical analyses, indicate that Asmari Formation was deposited in the inner and middle of a homoclinal carbonate ramp. Correlating Asmari association facies in Haftkel and Masjed-I-Soleiman oilfields showed that Haftkel oilfield has been in the shore-ward and Masjed-I-Soleiman oilfield has been in sea-ward of that ramp. Sequence stratigraphy studies express that the succession of Haftkel oilfield could be discriminated to six third order deposition sequences (Sq1-Sq6). Incorporation of the Sequence stratigraphy criteria of Asmari successions in this oilfield with its previous biostratigraphy data reviles that Sq1 and Sq2 occurred during Aquitanian time and Sq3 to Sq6 during Burdigalian age. Correlating of Asmari sequences of this oilfield with the Asmari sequences of Masjed-I-Soleiman, based on cyclostratigraphy data, show the sequences of Masjed-I-Soleiman occurred in Burdigalian time. Also the correlation expresses the steep of proposed ramp was toward Masjed-I-Soleiman area. The sequence correlation with global sea level fluctuations shows Burdigalian depositional sequences occurred based on eustasy in these oilfields.

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APA: Copy

LorEstani, M., KANGAZIAN, A., SAFARI, A., & NOURA, M.R.. (2019). Sedimentary environment and sequence stratigraphy of Asmari Formation in Haftkel oilfield, (well no. 28), Dezfool embaymen, and comparing it whit Asmari Formation in Masjed-I-Soleiman oilfield (well no. 186), Khuzestan Province. GEOSCIENCES, 28(110 ), 79-88. SID. https://sid.ir/paper/32122/en

Vancouver: Copy

LorEstani M., KANGAZIAN A., SAFARI A., NOURA M.R.. Sedimentary environment and sequence stratigraphy of Asmari Formation in Haftkel oilfield, (well no. 28), Dezfool embaymen, and comparing it whit Asmari Formation in Masjed-I-Soleiman oilfield (well no. 186), Khuzestan Province. GEOSCIENCES[Internet]. 2019;28(110 ):79-88. Available from: https://sid.ir/paper/32122/en

IEEE: Copy

M. LorEstani, A. KANGAZIAN, A. SAFARI, and M.R. NOURA, “Sedimentary environment and sequence stratigraphy of Asmari Formation in Haftkel oilfield, (well no. 28), Dezfool embaymen, and comparing it whit Asmari Formation in Masjed-I-Soleiman oilfield (well no. 186), Khuzestan Province,” GEOSCIENCES, vol. 28, no. 110 , pp. 79–88, 2019, [Online]. Available: https://sid.ir/paper/32122/en

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