骨架矿物-粘土矿物碱耗协同效应研究  

STUDY ON CO EFFECT OF ALKALI CONSUMPTION BETWEEN CLAY MINERALS AND GRAIN SIZED MINERALS

作　　者：陈忠[1] 赵敬松[1] 唐洪明[1] 沈明道[1] 高晓勇[2] 孙利德[2] 李东文[2] 

机构地区：[1]西南石油学院,南充637001 [2]新疆石油管理局,克拉玛依834000

出　　处：《矿物岩石》1999年第3期61-64,共4页Mineralogy and Petrology

基　　金：油气藏地质及开发工程国家重点实验室开放项目"重实021"资助

摘　　要：选择了克拉玛依油田二中区Ｔ２ ｋ１ 砂砾岩储层中的六种储层矿物：石英，正长石，微斜长石；Ｃａ蒙脱石，高岭石，伊利石。在不同的条件下研究了这六种矿物的碱耗量，还研究骨架矿物与粘土矿物按照一定的质量配比而成的复配矿物的碱耗量，探讨了矿物碱耗的协同效应。结果表明单矿物的碱耗序列为：蒙脱石（Ｓ）＞ 高岭石（Ｋ）＞ 伊利石（Ｉ）＞微斜长石（Ｍ）＞ 石英（Ｑ）＞ 正长石（Ｊ）。复配物的碱耗总体上受粘土矿物控制，尤其是蒙脱石的加入明显提高了复配物的耗碱量。但是粘土矿物的加入并不改变骨架矿物的碱耗序列。Six types of reservoir minerals, such as quartz, orthoclase, microcline, montmorillonite, kaolinite, illite, are selected to study their alkali consumption in various conditions, to investigate the alkali consumption of clay minerals mixed with grain sized minerals at different ratios and to discuss the co effect of alkali consumption of minerals. Present results show that the sequence of alkali consumption of these monominerals is characterized by montmorillonite>kaolinite>illite>microcline>quartz>orthoclase. The alkali consumption of mixed minerals is generally controlled by clay minerals. For instance, the addition of montmorillonite increases the alkali consumption of mixed minerals considerably. However the addition of clay minerals does not change the sequence of alkali consumption of grain sized minerals and similarly, the addition of grain sized minerals does not change the sequence of alkali consumption of clay minerals.

关 键 词：粘土矿物 骨架矿物 碱耗 协同效应 原油 采收率 

分 类 号：TE357[石油与天然气工程—油气田开发工程] P578.94[天文地球—矿物学]