Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran

Abstract In this study, a sandstone interval of the lower Cretaceous successions in SW Iran is analyzed regarding the effects of late diagenesis on the alteration of primary reservoir quality and pore system. Petrological and geochemical analyses indicate dominant quartz mineralogy (quartz arenite)...

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Autores principales:	Amirhossein Enayati-Bidgoli, Elham Saemi
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2019
Materias:	Siliciclastic reservoir Late diagenesis Reservoir quality Rock type Lower Cretaceous SW Iran Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/f8379f624b0346aabb12efa11539cd5b
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spelling	oai:doaj.org-article:f8379f624b0346aabb12efa11539cd5b2021-12-02T09:55:37ZEffects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran10.1007/s12182-019-0306-x1672-51071995-8226https://doaj.org/article/f8379f624b0346aabb12efa11539cd5b2019-03-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-019-0306-xhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract In this study, a sandstone interval of the lower Cretaceous successions in SW Iran is analyzed regarding the effects of late diagenesis on the alteration of primary reservoir quality and pore system. Petrological and geochemical analyses indicate dominant quartz mineralogy (quartz arenite) deposited in distributary channel and mouth bar environments which is embedded in delta front to prodelta argillaceous sediments. Rather than mineralogy and some remaining primary (intergranular) porosity, several late (burial) diagenetic processes including multi-phase carbonate cementation, chlorite cementation, and chemical compaction, affected the reservoir quality. Most of the diagenetic processes had a decreasing effect on the primary reservoir quality. All recognized diagenetic features are related to burial diagenesis of the surrounding open marine shales (clay mineral transformation) and expelled diagenetic fluids.Amirhossein Enayati-BidgoliElham SaemiKeAi Communications Co., Ltd.articleSiliciclastic reservoirLate diagenesisReservoir qualityRock typeLower CretaceousSW IranScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 2, Pp 267-284 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Siliciclastic reservoir Late diagenesis Reservoir quality Rock type Lower Cretaceous SW Iran Science Q Petrology QE420-499
spellingShingle	Siliciclastic reservoir Late diagenesis Reservoir quality Rock type Lower Cretaceous SW Iran Science Q Petrology QE420-499 Amirhossein Enayati-Bidgoli Elham Saemi Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran
description	Abstract In this study, a sandstone interval of the lower Cretaceous successions in SW Iran is analyzed regarding the effects of late diagenesis on the alteration of primary reservoir quality and pore system. Petrological and geochemical analyses indicate dominant quartz mineralogy (quartz arenite) deposited in distributary channel and mouth bar environments which is embedded in delta front to prodelta argillaceous sediments. Rather than mineralogy and some remaining primary (intergranular) porosity, several late (burial) diagenetic processes including multi-phase carbonate cementation, chlorite cementation, and chemical compaction, affected the reservoir quality. Most of the diagenetic processes had a decreasing effect on the primary reservoir quality. All recognized diagenetic features are related to burial diagenesis of the surrounding open marine shales (clay mineral transformation) and expelled diagenetic fluids.
format	article
author	Amirhossein Enayati-Bidgoli Elham Saemi
author_facet	Amirhossein Enayati-Bidgoli Elham Saemi
author_sort	Amirhossein Enayati-Bidgoli
title	Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran
title_short	Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran
title_full	Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran
title_fullStr	Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran
title_full_unstemmed	Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran
title_sort	effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower cretaceous successions of sw iran
publisher	KeAi Communications Co., Ltd.
publishDate	2019
url	https://doaj.org/article/f8379f624b0346aabb12efa11539cd5b
work_keys_str_mv	AT amirhosseinenayatibidgoli effectsoflatediagenesisonprimaryreservoirqualityofaquartzareniteunitacasestudyfromthelowercretaceoussuccessionsofswiran AT elhamsaemi effectsoflatediagenesisonprimaryreservoirqualityofaquartzareniteunitacasestudyfromthelowercretaceoussuccessionsofswiran
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Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran

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