干旱区生态环境知识资源中心(Arid): Integration of Electrofacies and Hydraulic Flow Units to Delineate Reservoir Quality in Uncored Reservoirs: A Case Study, Nubia Sandstone Reservoir, Gulf of Suez, Egypt

Arid

DOI	10.1007/s11053-018-9447-7
	Integration of Electrofacies and Hydraulic Flow Units to Delineate Reservoir Quality in Uncored Reservoirs: A Case Study, Nubia Sandstone Reservoir, Gulf of Suez, Egypt
	El Sharawy, Mohamed S.; Nabawy, Bassem S.
通讯作者	Nabawy, Bassem S.
来源期刊	NATURAL RESOURCES RESEARCH
ISSN	1520-7439
EISSN	1573-8981
出版年	2019
卷号	28 期号:4 页码:1587-1608
英文摘要	Recognition of reservoir quality is an important objective in reservoir characterization process. By definition, the quality of a reservoir is described by its hydrocarbon storage capacity and deliverability. The storage capacity is a function of porosity, whereas deliverability is a function of permeability. Thus, both porosity and permeability are the main reservoir quality controlling factors. Five wells were selected to study the reservoir quality of the Nubia sandstone in the Gulf of Suez, Egypt. The Nubia interval, deposited in continental to shallow marine conditions, consists mainly of sandstone intercalated by thin layers of shale. Three wells were partially cored and the other two wells are completely uncored. Based on several complementary techniques, it is concluded that the Nubia sandstone is of moderate to extremely heterogeneous quality. The porosity-permeability cross-plot showed fair-to-medium relationship, indicating the significant role of diagenetic agents. The Nubia reservoir quality has been enhanced principally by fracturing, dissolution and leaching. However, the reservoir quality decreased by cementation, compaction and filling of pore spaces by kaolinite. Based on principal component and cluster analyses, six electrofacies are recognized within the Nubia interval. Three electrofacies are dominant, whereas the other three are subsidiary. Flow zone indicator (FZI) was determined based on mean hydraulic radius and normalized porosity. Correlation between electrofacies and FZI permits discriminating the subject formation into reservoir quality ranks. The relative complexity of this reference formation notwithstanding, because of the robustness of the resulting electrofacies-FZI correlations, it was relatively straightforward to recognize and reasonably predict the reservoir quality of the uncored intervals.
英文关键词	Nubia sandstone Electrofacies Reservoir quality Porosity Permeability
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000485321200021
WOS关键词	EL-ZEIT AREA ; POROSITY EXPONENT ; LITHOLOGY FACTOR ; EASTERN DESERT ; PETRO-FABRICS ; PERMEABILITY ; PORE ; BASIN ; CONDUCTIVITY ; PRESSURE
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/2XILL650/217733
作者单位	Natl Res Ctr, Geophys Sci Dept, Giza, Egypt
推荐引用方式 GB/T 7714	El Sharawy, Mohamed S.,Nabawy, Bassem S.. Integration of Electrofacies and Hydraulic Flow Units to Delineate Reservoir Quality in Uncored Reservoirs: A Case Study, Nubia Sandstone Reservoir, Gulf of Suez, Egypt[J],2019,28(4):1587-1608.
APA	El Sharawy, Mohamed S.,&Nabawy, Bassem S..(2019).Integration of Electrofacies and Hydraulic Flow Units to Delineate Reservoir Quality in Uncored Reservoirs: A Case Study, Nubia Sandstone Reservoir, Gulf of Suez, Egypt.NATURAL RESOURCES RESEARCH,28(4),1587-1608.
MLA	El Sharawy, Mohamed S.,et al."Integration of Electrofacies and Hydraulic Flow Units to Delineate Reservoir Quality in Uncored Reservoirs: A Case Study, Nubia Sandstone Reservoir, Gulf of Suez, Egypt".NATURAL RESOURCES RESEARCH 28.4(2019):1587-1608.