大庆石油地质与开发

2015, v.34;No.172(06) 100-105

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强碱三元复合体系对储层矿物组分的影响
INFLUENCES OF THE STRONG-BASE ASP SYSTEM ON THE MINERAL COMPONENTS OF THE RESERVOIRS

李子豪,侯吉瑞,唐永强,赵凤兰,宋兆杰
LI Zihao,HOU Jirui,TANG Yongqiang,ZHAO Fenglan,SONG Zhaojie

摘要(Abstract):

为了探究强碱三元复合体系对储层矿物成分的影响,通过X射线衍射、扫描电镜及能谱分析等方法对大庆油田三元复合驱前、后岩心进行分析,并设计水-岩反应实验进行验证。结果表明:强碱对高岭石、钾长石等储层原生矿物造成了不同程度的溶蚀并改变矿物组成,同时生成了绿泥石等新矿物,而新矿物与储层原生矿物在元素组成上有所差异。
In order to explore the influences of the strong-base ASP system on the components of the reservoir minerals,with the help of the following methods such as X-ray diffraction,scanning electron microscope,energy spectrum analysis and so on,the cores are analyzed before and after the ASP flooding in Daqing Oilfield,and moreover the rock-water reaction experiment is performed to verify the above-mentioned analyses.The results confirm that the strong base has dissolved the native reservoir minerals such as kaolinite,potassium feldspar and so forth to various degrees and changed the components of the rock minerals.At the same time,some new minerals such as chlorite and so on are generated,but there are a certain differences in the elementary compositions as compared to those of the native minerals.

关键词(KeyWords): 三元复合体系;强碱;矿物组分;溶蚀;水-岩反应实验
ASP system;strong base;mineral component;dissolution;rock-water reaction experiment

Abstract:

Keywords:

基金项目(Foundation): 国家重大专项“油田开采后期提高采收率技术(2011ZX05009-004)”;; 国家示范工程“大庆长垣特高含水油田提高采收率示范工程(2011ZX05052)”;; 国家自然科学基金项目“ASP”复合驱油藏油水界面张力变化规律及残余油启动机制研究(51174216)”

作者(Author): 李子豪,侯吉瑞,唐永强,赵凤兰,宋兆杰
LI Zihao,HOU Jirui,TANG Yongqiang,ZHAO Fenglan,SONG Zhaojie

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