西南石油大学学报（自然科学版）2017，Vol.39Issue(1)：12-24,13.DOI:10.11885/j.issn.1674-5086.2015.02.07.01
珠江口盆地珠江组碳酸盐岩储层质量评价
Reservoir Quality Evaluation of Carbonates in the Zhujiang Formation of the Early Miocene Pearl River Mouth Basin
摘要
Abstract
Core observation,thin section identification,and physical property analysis show that the carbonate reservoir quality of the Lufeng,Huizhou,and Liuhua areas in the Pearl River Mouth Basin is significantly different.The carbonate reservoir quality of the Huizhou area is the lowest of the three areas because of extensive cementation;the reservoir has a visual porosity and an average permeability below 1 mD.Extensive dissolution,including early meteoric and burial dissolution,generates a great amount of secondary porosity,such as intergranular pores,mold pores,alter-large pores and geode pores,in the Liuhua area,which contributes to more than 80 ％ of the whole thin section porosity.The carbonates of this area have the highest porosity and permeability,high porosity and permeability correlation coefficient,and low cutoff porosity.Therefore,the best carbonate reservoir was developed in the Liuhua area.Early cementation is very helpful for the preservation of the primary porosity in the Lufeng area,where the dissolution is much weaker than in the Liuhua area,which makes the porosity in the Lufeng area approximately equal to that of the Liuhua area.However,its permeability is much lower than that of the Liuhua area due to the low connectivity of the primary porosity and the cutoff porosity is the highest.Thus,the Lufeng area is characterized by medium carbonate reservoir quality.关键词
储层特征/成岩作用/储层质量/珠江组/珠江口盆地Key words
reservoir characteristics/diagenesis/reservoir quality/Zhujiang Formation/Pearl River Mouth Basin分类
能源科技引用本文复制引用
兰叶芳,黄思静,周小康,马永坤..珠江口盆地珠江组碳酸盐岩储层质量评价[J].西南石油大学学报（自然科学版）,2017,39(1):12-24,13.基金项目
国家科技重大专项(Z2008SLSZ-052) （Z2008SLSZ-052）
国家自然科学基金(41172099,41272130) （41172099,41272130）
贵州省高校优秀科技创新人才支持计划(黔教合KY字[2015]504). （黔教合KY字[2015]504）
