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DOI | 10.1016/j.jksus.2018.12.002 |
Significance of core analysis and gamma-ray trends in depositional facies interpretation and reservoir evaluation of Cenomanian sequence, Alam El-Shawish East Oil Field, North Western Desert, Egypt | |
El-Tehiwy, Adel Abdelmoneim1; El-Anbaawy, Mohamed Ibrahim1; Rashwan, Nabil Hussein2 | |
通讯作者 | El-Tehiwy, Adel Abdelmoneim |
来源期刊 | JOURNAL OF KING SAUD UNIVERSITY SCIENCE |
ISSN | 1018-3647 |
EISSN | 2213-686X |
出版年 | 2019 |
卷号 | 31期号:4页码:1297-1310 |
英文摘要 | The present paper aims to evaluate the sedimentological model of the study Cenomanain sequence in terms of electrofacies interpretation and depositional facies architecture to reveal the spatial distribution of the reservoir facies characterization. The influence of depositional lithofacies types on reservoir characterization of the Cenomanian Bahariya Formation and Abu Roash G Member was investigated using the integration of available core data and petrophysical evaluation from seven wells in Alam El-Shawish East Oil Field, North Western Desert, Egypt. Careful log interpretation and correlation enable differentiation of the study sequence into ten sedimentary cycles. The stacking of the recognized facies types in the available cored interval, form fifteen depositional facies associations from which fluvial, estuarine and shoreline-shallow shelf models were constructed. This facies information has been used to calibrate the log response, particularly the gamma-ray trends, as an aid to interpret the depositional environment of the non-cored intervals. However, the generalized log pattern shows micro-variations in log shape and trend based on the location relative to depositional environment and consequently major modified gamma-ray patterns were proposed depending on the cored facies architecture. Therefore, precautions must be taken into consideration in extrapolating the present patterns to any similar heterogeneous sequence due to the effects of variable diagenetic and facies type constraints on log response. It is indicated that hydrocarbons could be accumulated within shoreface and barrier tidal inlet complex near or within the depositional sequence boundary surfaces along the Upper Bahariya Member and the upper unit of Abu Roash G Member. The associated fine siliciclastics (mudstone and shale) of tidal lagoon and/or shoreface delta facies may be acted as local source rock and trap seals. Based on reservoir characterization data supplemented by well logs interpretation of the cored and non-cored intervals, further reservoir beds could be recommended as potential prospecting targets. (C) 2018 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. |
英文关键词 | Cored facies architecture Gamma-ray trends Sedimentary cycles Depositional environment Reservoir evaluation |
类型 | Article |
语种 | 英语 |
国家 | Egypt |
开放获取类型 | gold |
收录类别 | SCI-E |
WOS记录号 | WOS:000499605300116 |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
EI主题词 | 2019-10-01 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/310047 |
作者单位 | 1.Cairo Univ, Dept Geol, Fac Sci, Cairo, Egypt; 2.Naftogaz Ukraine Petr Co, Cairo, Egypt |
推荐引用方式 GB/T 7714 | El-Tehiwy, Adel Abdelmoneim,El-Anbaawy, Mohamed Ibrahim,Rashwan, Nabil Hussein. Significance of core analysis and gamma-ray trends in depositional facies interpretation and reservoir evaluation of Cenomanian sequence, Alam El-Shawish East Oil Field, North Western Desert, Egypt[J],2019,31(4):1297-1310. |
APA | El-Tehiwy, Adel Abdelmoneim,El-Anbaawy, Mohamed Ibrahim,&Rashwan, Nabil Hussein.(2019).Significance of core analysis and gamma-ray trends in depositional facies interpretation and reservoir evaluation of Cenomanian sequence, Alam El-Shawish East Oil Field, North Western Desert, Egypt.JOURNAL OF KING SAUD UNIVERSITY SCIENCE,31(4),1297-1310. |
MLA | El-Tehiwy, Adel Abdelmoneim,et al."Significance of core analysis and gamma-ray trends in depositional facies interpretation and reservoir evaluation of Cenomanian sequence, Alam El-Shawish East Oil Field, North Western Desert, Egypt".JOURNAL OF KING SAUD UNIVERSITY SCIENCE 31.4(2019):1297-1310. |
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