KFU. Card publication. 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

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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

Form of presentation

Articles in international journals and collections

Year of publication

2020

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Authors, employees of KFU

Morozov Vladimir Petrovich, author

Yusef Ibrakhem , author

Bibliographic description in the original language

Yousef Ibrahem, Morozov Vladimir P., El Kadi Mohammad, 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. - Vol.20, Is.2. - Art. �ES2007.

Annotation

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

The name of the journal

RUSSIAN JOURNAL OF EARTH SCIENCES

URL

http://rjes.wdcb.ru/

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=233450&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Morozov Vladimir Petrovich	ru_RU
dc.contributor.author	Yusef Ibrakhem	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Yousef Ibrahem, Morozov Vladimir P., El Kadi Mohammad, 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. - Vol.20, Is.2. - Art. �ES2007.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=233450&p_lang=2	ru_RU
dc.description.abstract	RUSSIAN JOURNAL OF EARTH SCIENCES	ru_RU
dc.description.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%.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.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	ru_RU
dc.type	Articles in international journals and collections	ru_RU