阿尔及利亚438b 区块三叠系Serie Inferiere 段储层平面非均质性研究
网络出版日期: 2009-06-16
Study on horizontal heterogeneity in Serie Inferiere of Triassic in 438b block , Algeria
Online published: 2009-06-16
郭艳琴 , 袁珍 , 李克永 , 梁积伟 . 阿尔及利亚438b 区块三叠系Serie Inferiere 段储层平面非均质性研究[J]. 岩性油气藏, 2009 , 21(2) : 24 -28 . DOI: 10.3969/j.issn.1673-8926.2009.02.005
Based on the analysis of core, logging and drilling, the sedimentary characteristics of braided channel in Serie Inferiere of Triassic in 438b block are analyzed. Combined with porosity, sand density, onrush coefficient, variation coefficient, permeability graded difference and frequency-interlayers, the entropy weight method is used to calculate the heterogeneous synthetic index in Serie Inferiere ofTriassic. The distribution map of reservoir heterogeneity is drawn based on sedimentary facies. This method can take fully advantages of entropy weight method, and it can accurately characterize the horizontal heterogeneity.
Key words: reservoir factors; sedimentary facies; Yanchang Formation; Hejiaji area
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