Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian Gulf
Abstract The Upper Arab reservoir in the central Persian Gulf was examined for depositional, diagenetic, sequence stratigraphic and petrophysical features. This succession is composed of eight sedimentary facies that deposited on a carbonate ramp. Three-third-order sequences prograded across the Lat...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-04-01
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| Series: | Journal of Petroleum Exploration and Production Technology |
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| Online Access: | https://doi.org/10.1007/s13202-020-00884-7 |
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| author | Masoud Sharifi-Yazdi Hossain Rahimpour-Bonab Maziyar Nazemi Vahid Tavakoli Sajjad Gharechelou |
| author_facet | Masoud Sharifi-Yazdi Hossain Rahimpour-Bonab Maziyar Nazemi Vahid Tavakoli Sajjad Gharechelou |
| author_sort | Masoud Sharifi-Yazdi |
| collection | DOAJ |
| description | Abstract The Upper Arab reservoir in the central Persian Gulf was examined for depositional, diagenetic, sequence stratigraphic and petrophysical features. This succession is composed of eight sedimentary facies that deposited on a carbonate ramp. Three-third-order sequences prograded across the Late Jurassic Arab Platform. This interval was complicated by multiple diagenetic phases including eogenesis and mesogenesis that strongly influenced reservoir properties. Dolomitization, dissolution, cementation and compaction are major diagenetic processes which played an essential role in increasing or decreasing reservoir quality. Four hydraulic flow units (HFU) were determined by flow zone indicator approach for evaluation of the reservoir quality. In addition to depositional features, diagenetic alterations have changed general HFUs characterizations such as porosity, permeability and pore-throat size. Likewise, via Lucia classification, HFUs of the Arab reservoir were grouped based on the integration of geological and petrophysical attributes in detail. Among diagenetic processes, dolomitization and dissolution have positive effects while cementation and stylolitization have a negative effect on HFUs characteristics in the studied reservoir. Put another way, since diagenetic alterations lead to the intensification of heterogeneity in carbonate reservoir, prediction of the relationship between pore type and pore throat size is a problematic issue. Recognition of the hydraulic flow units considered as a practical tool for grouping reservoir rocks and characterizing heterogeneity using porosity and permeability relationship. Finally, specifying of the contribution of various diagenetic imprints in each hydraulic flow unit in a sequence stratigraphic framework results in a conceptual reservoir model that could predict reservoir quality variations across the field. |
| first_indexed | 2024-04-11T09:13:37Z |
| format | Article |
| id | doaj.art-2ba316a52de446d09957273132eccce6 |
| institution | Directory Open Access Journal |
| issn | 2190-0558 2190-0566 |
| language | English |
| last_indexed | 2024-04-11T09:13:37Z |
| publishDate | 2020-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Petroleum Exploration and Production Technology |
| spelling | doaj.art-2ba316a52de446d09957273132eccce62022-12-22T04:32:26ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662020-04-011051783180210.1007/s13202-020-00884-7Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian GulfMasoud Sharifi-Yazdi0Hossain Rahimpour-Bonab1Maziyar Nazemi2Vahid Tavakoli3Sajjad Gharechelou4School of Geology, College of Science, University of TehranSchool of Geology, College of Science, University of TehranSchool of Geology, College of Science, University of TehranSchool of Geology, College of Science, University of TehranSchool of Geology, College of Science, University of TehranAbstract The Upper Arab reservoir in the central Persian Gulf was examined for depositional, diagenetic, sequence stratigraphic and petrophysical features. This succession is composed of eight sedimentary facies that deposited on a carbonate ramp. Three-third-order sequences prograded across the Late Jurassic Arab Platform. This interval was complicated by multiple diagenetic phases including eogenesis and mesogenesis that strongly influenced reservoir properties. Dolomitization, dissolution, cementation and compaction are major diagenetic processes which played an essential role in increasing or decreasing reservoir quality. Four hydraulic flow units (HFU) were determined by flow zone indicator approach for evaluation of the reservoir quality. In addition to depositional features, diagenetic alterations have changed general HFUs characterizations such as porosity, permeability and pore-throat size. Likewise, via Lucia classification, HFUs of the Arab reservoir were grouped based on the integration of geological and petrophysical attributes in detail. Among diagenetic processes, dolomitization and dissolution have positive effects while cementation and stylolitization have a negative effect on HFUs characteristics in the studied reservoir. Put another way, since diagenetic alterations lead to the intensification of heterogeneity in carbonate reservoir, prediction of the relationship between pore type and pore throat size is a problematic issue. Recognition of the hydraulic flow units considered as a practical tool for grouping reservoir rocks and characterizing heterogeneity using porosity and permeability relationship. Finally, specifying of the contribution of various diagenetic imprints in each hydraulic flow unit in a sequence stratigraphic framework results in a conceptual reservoir model that could predict reservoir quality variations across the field.https://doi.org/10.1007/s13202-020-00884-7Hydraulic flow unitUpper Arab FormationDiagenesisLucia classificationPersian Gulf |
| spellingShingle | Masoud Sharifi-Yazdi Hossain Rahimpour-Bonab Maziyar Nazemi Vahid Tavakoli Sajjad Gharechelou Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian Gulf Journal of Petroleum Exploration and Production Technology Hydraulic flow unit Upper Arab Formation Diagenesis Lucia classification Persian Gulf |
| title | Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian Gulf |
| title_full | Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian Gulf |
| title_fullStr | Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian Gulf |
| title_full_unstemmed | Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian Gulf |
| title_short | Diagenetic impacts on hydraulic flow unit properties: insight from the Jurassic carbonate Upper Arab Formation in the Persian Gulf |
| title_sort | diagenetic impacts on hydraulic flow unit properties insight from the jurassic carbonate upper arab formation in the persian gulf |
| topic | Hydraulic flow unit Upper Arab Formation Diagenesis Lucia classification Persian Gulf |
| url | https://doi.org/10.1007/s13202-020-00884-7 |
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