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DOI	10.1016/j.marpetgeo.2021.105466
	Seismic stratigraphy, sedimentary facies analysis and reservoir characteristics of the Middle Jurassic syn-rift sediments in Salam Oil Field, north Western Desert, Egypt
	Leila, Mahmoud; Yasser, Aya; El Bastawesy, Mohamed; El Mahmoudi, Ahmed
通讯作者	Leila, M (corresponding author)，Mansoura Univ, Fac Sci, Geol Dept, Mansoura, Egypt.
来源期刊	MARINE AND PETROLEUM GEOLOGY
ISSN	0264-8172
EISSN	1873-4073
出版年	2022
卷号	136
英文摘要	The Middle Jurassic syn-rift sediments (Khatatba Formation) of the Western Desert, Egypt hosting potential reservoir intervals are prospective targets for hydrocarbon exploration and development campaigns. However, their depositional evolution and factors controlling distribution of the best reservoir faces are not very wellconstrained. This work integrates seismic, well logs and conventional core dataset in order to define the synrift sedimentary patterns and their impact on distribution and quality of the reservoir facies. Khatatba Formation comprises two discrete units; the lower unit constitutes lower progradational and upper retrogradational sedimentary packages that are interpreted in terms of discrete rift phases. Nine sedimentary facies associations (FA) were recognized and their stacking patterns are governed by the rift evolution and the interplay between variation in fault offsets and sediment supply. Distal sand bar sandstones, marine shales and organic-rich shales were accumulated during periods of high subsidence. Successive alternation between shallow and deep facies at the base of the lower unit reveals repeated short periods of progradation and retrogradation with an overall progradational trend reflecting an elevated rate of sediment supply. Episodic fault-controlled retrogradation and progradation continued during the deposition of the Khatatba upper unit where the progradational deltaic facies changes upward into retrogradational marine sediments and aggradational-progradational aeolian and shoreface sandstones. Five hydraulic flow units (HFUs) were identified and their distribution is mostly controlled by the rift evolution. The lowest reservoir quality HFU4 and HFU5 are often associated with the retrograding distal facies accumulated during highest rates of subsidence. These zones do not contribute to more than 10% of the reservoir flow capacity. On the other hand, the progradational deltaic facies accounts for approximately 85% of the reservoir flow capacity in both lower and upper Khatatba units.
英文关键词	Western desert Khatatba Syn-rift Jurassic Seismic stratigraphy Reservoir quality
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000748977200001
WOS关键词	ONSHORE NILE DELTA ; MEDITERRANEAN BASIN ; SHOUSHAN BASIN ; CENTRAL-AFRICA ; MARINE FACIES ; SOURCE ROCKS ; EVOLUTION ; SYSTEM ; ARCHITECTURE ; STRATIFICATION
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376477
作者单位	[Leila, Mahmoud; Yasser, Aya; El Mahmoudi, Ahmed] Mansoura Univ, Fac Sci, Geol Dept, Mansoura, Egypt; [El Bastawesy, Mohamed] Khalda Petr Co, Cairo, Egypt
推荐引用方式 GB/T 7714	Leila, Mahmoud,Yasser, Aya,El Bastawesy, Mohamed,et al. Seismic stratigraphy, sedimentary facies analysis and reservoir characteristics of the Middle Jurassic syn-rift sediments in Salam Oil Field, north Western Desert, Egypt[J],2022,136.
APA	Leila, Mahmoud,Yasser, Aya,El Bastawesy, Mohamed,&El Mahmoudi, Ahmed.(2022).Seismic stratigraphy, sedimentary facies analysis and reservoir characteristics of the Middle Jurassic syn-rift sediments in Salam Oil Field, north Western Desert, Egypt.MARINE AND PETROLEUM GEOLOGY,136.
MLA	Leila, Mahmoud,et al."Seismic stratigraphy, sedimentary facies analysis and reservoir characteristics of the Middle Jurassic syn-rift sediments in Salam Oil Field, north Western Desert, Egypt".MARINE AND PETROLEUM GEOLOGY 136(2022).