四川盆地碳酸盐岩中硅质特征及其对储层的影响  

Characteristics of silica in carbonate rocks of Sichuan Basin and the impaction to reservoir

作　　者：莫静[1] 王兴志[1,2] 谢林[1] 何施雨 梁静 李加利 敖梅 何川 

机构地区：[1]西南石油大学资源与环境学院,成都610500 [2]西南石油大学国家重点实验室,成都610500 [3]中海油深圳分公司,广东深圳518000 [4]西南油气四川东北气矿勘探开发项目部,四川达州625000 [5]西南油气四川中油气矿广安采油气作业区,四川广安638500 [6]西南油气田川西北气矿,四川邛崃611500 [7]长庆第九采油厂,银川750001

出　　处：《地质找矿论丛》2013年第3期419-423,共5页Contributions to Geology and Mineral Resources Research

摘　　要：四川盆地碳酸盐岩储层为我国主要海相储层之一。通过分析四川盆地碳酸盐岩中硅质的宏观、微观特征,提出硅质以互层、混积、充填、交代的形式存在于碳酸盐岩中。互层硅质、充填硅质和交代硅质中二氧化硅来源以火山喷发为主,但后期沉积机制不同;混积硅质中二氧化硅来源于陆源碎屑,对物源方向具有一定的指向意义,沉积机制为陆源混积。互层硅质、充填硅质、交代硅质对储层形成具有双重意义,混积硅质对储层形成起严重破坏性作用。Carbonate rock reservoir in Sichuan Analysis of macro and micro characteristics of that th bonate e silica materials are mainly interbeded, or replace the carbonate. Silica which is basin is one of the important marine reservoirs in China. silica materials in carbonate rocks in Sichuan basin show mixed together with the carbonate rock, filled in the car- interbeded with the carbonate rock, filled in the carbonate rock or replace the carbonate rock is mainly derived from volcanic eruption but the late settlement mecha- nism is different. Silica mixed together with the carbonate rock is derived from terriginous debris and is of source indication.. The interbedding, filling and metasomatic silica plays both building and destruction role on reservoir but the mixed silica only destruction role.

关 键 词：碳酸盐岩 硅质 互层 混积 充填 交代 储层 四川省 

分 类 号：P588.244[天文地球—岩石学]