Influence and control of post-sedimentation changes on sandstone reservoirs quality, example, upper Triassic (Mulussa F reservoir), and lower Cretaceous (Rutbah reservoir), Euphrates graben, Syria

Ibrahem Yousef; Vladimir P Morozov; Kadi M. El

doi:10.2205/2020ES000706

INFLUENCE AND CONTROL OF POST-SEDIMENTATION CHANGES ON SANDSTONE RESERVOIRS QUALITY, EXAMPLE, UPPER TRIASSIC (MULUSSA F RESERVOIR), AND LOWER CRETACEOUS (RUTBAH RESERVOIR), EUPHRATES GRABEN, SYRIA Influence and control of post-sedimentation changes on sandstone reservoirs quality, example, upper Triassic (Mulussa F reservoir), and lower Cretaceous (Rutbah reservoir), Euphrates graben, Syria

АА Аа

Published in Russian Journal of Earth Sciences · Volume 20, Issue 2 · Pages 1–24 · Rubric: ORIGINAL ARTICLES

DOI: https://doi.org/10.2205/2020ES000706

Received: 29.10.2021 Accepted: 26.07.2023 Language of publication: ENG

Authors

Ibrahem Yousef

Vladimir P Morozov

Kadi M. El

Ibrahem Yousef

Institute of Geology and Petroleum Technologies, Kazan Federal University

Vladimir P Morozov

Institute of Geology and Petroleum Technologies, Kazan Federal University

Kadi M. El

Department of Geology, Damascus University

ABSTRACT

Using Scanning Electron Microscope SEM technics with XRD analyses, the authors have studied the influence and control of post-sedimentation changes on the upper Triassic (Mulussa F formation), and lower Cretaceous (Rutbah formation) reservoirs quality at Euphrates graben area. The detrital components occupy an average of 72% of the rock volume represented by sandstone quartz arenite, the authigenic minerals occupy an average of 20% represented by overgrowth quartz, kaolinite, chlorite, illite, illite-smectite mixed layers, dolomite, siderite, pyrite, and anhydrite. The history of post-sedimentation changes is subdivided into 2 stages; diagenesis-misocatagenis, and mesocatagenesis-apocatagenesis. The porosity of the reservoirs decreased due to the detrital clay, and the authigenic minerals which cause blocking of pore spaces, and reduce the diameter of the inter-pore channels and leads to a significant effect on the reservoir porosity. Quartz cement reduced the porosity of the upper Triassic reservoir to a lesser extent due to its low content 3%, while the other cements which consist mainly of kaolinite and siderite serve as the main factor in reducing the porosity since their content is higher 7.4%. In the lower Cretaceous reservoirs, quartz cement with the other cements equally contributed to decreasing the porosity due to their presence in equal volumes 2.8 to 3.6%. Houseknecht diagram shows that the initial porosity of the upper Triassic reservoir was reduced by compaction by 47.5%, while reduced by cementation by 26%. In the lower Cretaceous reservoir, the initial porosity was reduced by compaction by 59.5%, while reduced by cementation by 19%.

KEYWORDS

Influence, control, post-sedimentation, upper Triassic, lower Cretaceous, Euphrates graben, Syria

Funding

The work was carried out at the expense of the subsidy allocated within the framework of the state support of the Institute of Geology and Petroleum Technologies, Kazan Federal University, Russia in order to increase its competitiveness among the world's leading scientific and educational centers.

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rjes@wdcb.ru

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Responsible Secretary

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This work is licensed under Creative Commons Attribution 4.0 International Creative Commons

GOST

Yousef I., Morozov V. ., El Kadi M. Influence and control of post-sedimentation changes on sandstone reservoirs quality, example, upper Triassic (Mulussa F reservoir), and lower Cretaceous (Rutbah reservoir), Euphrates graben, Syria // Russian Journal of Earth Sciences. 2020. no. 2. pp. 1-24. DOI: https://doi.org/10.2205/2020ES000706. (Date of access 20.10.2026).

MLA

Ibrahem Yousef, Morozov V. ., El Kadi M.. "Influence and control of post-sedimentation changes on sandstone reservoirs quality, example, upper Triassic (Mulussa F reservoir), and lower Cretaceous (Rutbah reservoir), Euphrates graben, Syria." Russian Journal of Earth Sciences 20.2 (2020): 1-24. DOI: https://doi.org/10.2205/2020ES000706.

APA

Yousef I., Morozov V. ., El Kadi M. (2020). Influence and control of post-sedimentation changes on sandstone reservoirs quality, example, upper Triassic (Mulussa F reservoir), and lower Cretaceous (Rutbah reservoir), Euphrates graben, Syria. Russian Journal of Earth Sciences, 20(2), 1-24. https://doi.org/10.2205/2020ES000706

Chicago

Ibrahem Yousef, Morozov V. ., El Kadi M.. "Influence and control of post-sedimentation changes on sandstone reservoirs quality, example, upper Triassic (Mulussa F reservoir), and lower Cretaceous (Rutbah reservoir), Euphrates graben, Syria." Russian Journal of Earth Sciences 20, no. 2 (2020): 1-24. https://doi.org/10.2205/2020ES000706.

WIKI

{{cite journal | author = Yousef I., Morozov V. ., El Kadi M. | title = Influence and control of post-sedimentation changes on sandstone reservoirs quality, example, upper Triassic (Mulussa F reservoir), and lower Cretaceous (Rutbah reservoir), Euphrates graben, Syria | journal = Russian Journal of Earth Sciences | year = 2020 | volume = 20 | issue = 2 | pages = 1-24 | doi = 10.2205/2020ES000706 }}

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