Interpretation of sedimentary environment and factors affecting reservoir quality in upper Sarvak Formation in one the oil fields of Abadan plain

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KIANI A.; SABERI M.H.; ZARENEZHAD B.; ASADI MEHMANDOSTI E.; RAHMANI N.

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Journal: IRANIAN JOURNAL OF PETROLEUM GEOLOGY Year:2019 | Volume:8 | Issue:16 Page(s): 78-103

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Title

Interpretation of sedimentary environment and factors affecting reservoir quality in upper Sarvak Formation in one the oil fields of Abadan plain

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Keywords

Sarvak FormationQ2

Abadan PlainQ1

Sedimentary environmentQ2

Diagenetic processesQ1

Sequence stratigraphyQ2

Reservoir qualityQ2

Abstract

The Sarvak Formation of the Albian-Turonian Formation is one of the most important hydrocarbon reservoirs in south and southwest of Iran. In this study, in order to assess the Reservoir quality, from a petrographic study and porosity and permeability data, an important well in one of the oil fields of Abadan Plain has been used. Based on microscopic studies, 13 microfacies have been identified in the form of Four facies tidal flat, lagoon, shoal and open marine for Sarvak Formation deposits in the studied oil field, indicating that the upper part of the Sarvak Formation is deposited in a homoclinal carbonate ramp. Among the identified Diagenetic processes, dissolution, cementation, dolomitization, fracturing, compaction, neomorphism, micritization, bioturbation, pyritization, hematitization, phosphatization and silicification are mentioned. Diagenetic processes of Sarvak Formation occurred in three marine, meteoric and burial environments. Among the dissolution and fracturing Diagenetic processes, the most important role has been in increasing the Reservoir quality, and cementation and compaction have been the most important factors in reducing Reservoir quality. Sequence stratigraphy studies identified third order sedimentary sequences of the age of Turonian, Late Cenomanian, and Middle Cenomanian, and studied the facies and Diagenetic processes within its framework. Correlation of porosity and permeability data of the core showed that the Reservoir quality in this formation was influenced by facies and Diagenetic processes. So that the microfacies containing the rudist have the highest Reservoir quality. Due to the Diagenetic processes, sedimentary and porosity and permeability data, the facies shoal and open marine to the land have the best Reservoir quality.

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APA: Copy

KIANI, A., SABERI, M.H., ZARENEZHAD, B., ASADI MEHMANDOSTI, E., & RAHMANI, N.. (2019). Interpretation of sedimentary environment and factors affecting reservoir quality in upper Sarvak Formation in one the oil fields of Abadan plain. IRANIAN JOURNAL OF PETROLEUM GEOLOGY, 8(16 ), 78-103. SID. https://sid.ir/paper/387300/en

Vancouver: Copy

KIANI A., SABERI M.H., ZARENEZHAD B., ASADI MEHMANDOSTI E., RAHMANI N.. Interpretation of sedimentary environment and factors affecting reservoir quality in upper Sarvak Formation in one the oil fields of Abadan plain. IRANIAN JOURNAL OF PETROLEUM GEOLOGY[Internet]. 2019;8(16 ):78-103. Available from: https://sid.ir/paper/387300/en

IEEE: Copy

A. KIANI, M.H. SABERI, B. ZARENEZHAD, E. ASADI MEHMANDOSTI, and N. RAHMANI, “Interpretation of sedimentary environment and factors affecting reservoir quality in upper Sarvak Formation in one the oil fields of Abadan plain,” IRANIAN JOURNAL OF PETROLEUM GEOLOGY, vol. 8, no. 16 , pp. 78–103, 2019, [Online]. Available: https://sid.ir/paper/387300/en

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