网络出版日期: 2012-12-20
基金资助
中国石化河南油田项目“王集地区低阻薄差层评价技术研究”(编号:030000011-11-2C0607-0045)资助
Logging identification and evaluation of low resistivity reservoir in fault-block
Online published: 2012-12-20
潘树新 , 郑荣才 , 卫平生 , 王天奇 , 陈彬滔 , 梁苏娟 . 断块低阻油层测井识别与评价[J]. 岩性油气藏, 2012 , 24(6) : 110 -114 . DOI: 10.3969/j.issn.1673-8926.2012.06.020
Lowresistivity oil layer are widely developed in Wangji Oilfield. Due to the lowcontrast ratio of resistivity between oil layer and water layer, the log interpretation is difficult. Based on core test and formation water analysis, this paper analyzed the origin of low resistivity reservoir. The result shows that formation water salinity divergence, pore structure, thin bed development and drillingmud intrusion are the main influencing factors for lowresistivity of reservoir. This paper summarized three kinds of interpretation methods to identify the lowresistivity oil layer, namely oil and water layer identification in cross plot, induction electrolog and lateral logging united method and invading factor method. The actual practice shows that these interpretation methods are suitable for the identification and evaluation of lowresistivity reservoir.
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