测井技术2009，Vol.33Issue(3)：253-256,4.
南堡凹陷复杂砂岩储层含水饱和度模型的研究
On Water Saturation Model for Complex Sand Reservoir in Nanpu Sag
李奎周 1范宜仁 1王晓畅 1邓少贵1
作者信息
- 1. 中国石油大学地球资源与信息学院,山东,东营,257061
- 折叠
摘要
Abstract
Because of the impact of precipitation facies and lithogeny, there are many complex reservoirs in Nanpu oil field with characteristics of high bond water saturation, high cation ex-change capacity and complex pore structures. The reservoir's electrical parameters are different from that of conventional sandstone reservoir so that we can't use Archie's equation to do reservoir evaluation. By analyzing the core electrical properties, it is found that rn and n in Archie's equa-tion are mainly influenced by cation exchange capacity (Qv) when cation additional conductivity is high, and exponential with Qv; They are mainly influenced by pore structures when the cation additional conductivity is low, and logarithmic with √K/φ. The adjusted model reflected the in-fluences of cation exchange capacity, pore structures and formation water salinity. Actual data processing of the complex sancl reservoir has proved the new model is much better than the con-ventional one.关键词
测井解释/复杂砂岩油气藏/含水饱和度/岩石电性/阳离子交换量(Qv)/孔隙结构/综合指数Key words
log interpretation, complex sand reservoir, water saturation, core electrical proper-ties, cation exchange capacity(Qv), pore structure, aggregative index分类
天文与地球科学引用本文复制引用
李奎周,范宜仁,王晓畅,邓少贵..南堡凹陷复杂砂岩储层含水饱和度模型的研究[J].测井技术,2009,33(3):253-256,4.
