宋子齐,杨立雷,王宏,李燕,孙丽娜
SONG Zi-qi,YANG Li-lei,WANG Hong,LI Yan,SUN Li-na(Xi'an Petroleum University

• 1:西安石油大学
• 2:西安石油大学
• 3:西安石油大学
• 4:西安石油大学

摘要(Abstract)：

针对陕北斜坡中部特低渗透储层储集性能和渗流结构差异大、流动层带复杂的特点,利用灰色系统理论研究测井、钻井取心及有关地质资料,匹配、拟合和提取参数,统计分析特征值及其综合评价储层流动单元的方法。通过该区长3、长4+5特低渗储层流动单元类型和流动层带指标分析,综合考虑储层微观孔隙几何特征、沉积、成岩特征、岩性、物性及地层参数分布特征等10个参数,在其聚类分析基础上,确定了Ⅰ、Ⅱ、Ⅲ、Ⅳ类流动单元及其评价划分准则。利用矩阵分析、标准化、标准指标绝对差的极值加权组合放大及综合归一,实现了灰色系统理论集成和综合储层的多种信息,从不同角度分析评价该区特低渗透储层性质、特征和差异,指出了该Ⅰ、Ⅱ类好的流动单元分布发育的规模和范围虽然较小,但它们的渗流能力和储集能力明显较好,它们的区域和层位,是该区特低渗透储层含油有利区预测评价的主要方向。
Aiming at the large difference between the reservoir accumulation behavior and percolation structure,as well as the complex flow zones in extra-low permeability reservoir in the middle of Shanbei Slope,gray system method is used for the study of logging,drilling core and relevant geology information,matching and extracting parameters,along with the statistical analysis of characteristic value and comprehensive evaluation of flow unit.Through the index analysis of flow unit types and flow zones in extra-low permeability reservoir of Chang3 and Chang 4+5,combing the integrate consideration of ten parameters,for example,reservoir micro-pore geometric characteristics,deposit,diagenetic feature,lithology,physical property and reservoir parameters etc.,based on the analysis of cluster,TypeⅠ,Ⅱ,Ⅲ,Ⅳ flow units and their evaluation subdivision criterion have been defined.The extra-low permeability reservoir feature,property and difference are evaluated in different viewpoints by means of matrix analysis,standardization,weighted array amplification and integrated normalization of extreme value,realizing the integration of grey system method and combination of reservoir information.The above work indicates that TypeⅠand Ⅱ flow units have better permeability and storage capability although with smaller development scale and distribution.The present region and horizon for TypeⅠand Ⅱ flow units are the main targets to predict and evaluate the favorable oil-bearing area in this extra-low permeability reservoir.

关键词(KeyWords)： 灰色系统;流动单元;综合评价;分类特征;分析方法;实际应用
grey system;flow unit;comprehensive evaluation;classification feature;analysis method;practical application.

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 宋子齐,杨立雷,王宏,李燕,孙丽娜
SONG Zi-qi,YANG Li-lei,WANG Hong,LI Yan,SUN Li-na(Xi'an Petroleum University

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