Petrophysical analysis of a clastic reservoir rock: a case study of the Early Cambrian Khewra Sandstone, Potwar Basin, Pakistan
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- 作者：Shahid Ghazi ; Perveiz Khalid ; Tahir Aziz ; Zulqarnain Sajid…
- 关键词：Early Cambrian ; Khewra Sandstone ; Kal Oil Field ; Potwar Basin ; petrophysical analysis
- 刊名：Geosciences Journal
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：20
- 期：1
- 页码：27-40
- 全文大小：1,908 KB
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Perveiz Khalid (1)
Tahir Aziz (1)
Zulqarnain Sajid (1)
Tanzila Hanif (1)
1. Institute of Geology, University of the Punjab, Quaid-e-Azam Campus, Lahore, 54590, Pakistan - 刊物类别：Earth and Environmental Science
- 刊物主题：Earth sciences
Geosciences - 出版者：The Geological Society of Korea, co-published with Springer
- ISSN：1598-7477
文摘
The Khewra Sandstone is widely distributed throughout the Potwar Basin of Pakistan. Its reservoir aspects are evaluated by the interpretation of well log data recorded from Kal-01 and Kal-02 wells in the Kal Oil Field, eastern Potwar Basin. The encountered thickness of the Khewra Sandstone in Kal-01and Kal-02 varies from 60 m to 120 m. On the basis of lithological interpretation from wireline logs the formation is divided into four facies: 1) shale interbedded with minor siltstone and sandstone, 2) sandstone with alternating siltstone and claystone/shale, 3) claystone/shale, siltstone interbedded with fine to medium grained sandstone and 4) fine to coarse grained sandstone with channels. The log derived average porosity in Khewra Sandstone is about 14–22% with permeability ranges from 20–58 mD. Thus, it possesses a large storage capacity for moveable hydrocarbons in Kal Oil Field. Facies 4, in the upper part of the Khewra Sandstone, is interpreted as potential reservoir interval with hydrocarbon saturation ranges from 77–79%. Based on isopach map, the formation is interpreted to be well developed in NE-SW which gradually thins basinward to the west and northwest direction. The play fairway analysis suggested very high chances of hydrocarbon entrapment is in the Kal Oil Field. Keywords Early Cambrian Khewra Sandstone Kal Oil Field Potwar Basin petrophysical analysis