基于模糊聚类分析的复杂碳酸盐岩储层定量评价  

Quantitative evaluation of complex carbonate reservoir based on fuzzy cluster analysis

作　　者：丁熊[1] 谭秀成[1] 雷一文[2] 范玲[3] 吴小庆[1] 

机构地区：[1]西南石油大学资源与环境学院,四川成都610500 [2]西南油气田分公司蜀南气矿,四川泸州646001 [3]西南油气田川中油气矿研究所,四川遂宁629000

出　　处：《西安石油大学学报（自然科学版）》2009年第3期25-27,34,共4页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：中石油中青年创新基金(编号:06E1018)资助

摘　　要：影响储层性质的因素较多,并且这些因素之间往往具有错综复杂的关联性,针对这些特点,以四川盆地川中磨溪气田嘉陵江组嘉二段碳酸盐岩储层为例,优选孔隙度、渗透率、含水饱和度、排驱压力、平均孔喉半径、储层有效厚度以及渗透率变异系数、突进系数和级差作为储层评价因素,采用模糊聚类分析法评价储层的质量.评价结果与气田实际产能具有很好的一致性.There are many factors of influencing reservoir characteristics,and there is complex correlation among the factors.Taking the carbonate reservoir of Jia-2 member of Jialingjiang formation in Moxi gasfield in the middle of Sichuan Basin as a case,the complex carbonate reservoir is quantitatively evaluated using the fuzzy cluster analysis.The porosity,permeability,water saturation,displacement pressure,average pore-throat radius and effective thickness of the reservoir and the variation coefficient,mutation coefficient and level difference of the reservoir permeability are selected as the factors of influencing reservoir characteristics.The evaluation result is consistent with the practical productivity of the reservoir.

关 键 词：碳酸盐岩 复杂储层 定量评价 模糊聚类 磨溪气田 

分 类 号：TE122.22[石油与天然气工程—油气勘探]