砂岩中自生粘土矿物的研究现状、内容和方法

自生粘土矿物是砂岩中重要的填隙物,也是砂岩成岩阶段划分的重要指示矿物。该类矿物在油气勘探开发过程中备受关注。随着石油工业的大发展,砂岩中自生粘土矿物的研究,目前已取得了长足进展。本文以高岭石、伊利石、绿泥石和蒙皂石等砂岩中常见自生粘土矿物为例,从研究现状、内容和方法三方面综述砂岩中的自生粘土矿物。通过大量的文献调研认为：研究内容主要包括矿物学特征、赋存状态（产状）、发育机理及对储层物性的影响等方面;薄片鉴定、染色分析、热分析、X-射线衍射分析和扫描电镜相结合是研究砂岩中自生粘土矿物的常规手段,目前亟待发展特色研究方法。

The Authigenic Clay Mineral Research Status, Contents and Methods of Sandstone

Authigenic clay mineral is the vital chink of the sandstone,and also the important index mineral of dividing diagenetic stage.This kind of mineral is paid much attention to during the petroleum exploration and development process.With the big progress of petroleum industry,the study of authigenic clay mineral of the sandstone has gotten significant progress.Based on the status,contents and methods of the research,this paper summarizes authigenic clay mineral,taking the examples of kaolinite,illite,chlorite and smectite.From abundant literature surveys,we draw the conclusion：the content mainly contains mineralogy characteristic,occurrence,growth mechanism and the effect on reservoir physical properties and so on;the combination of slice authentication,dyestaining analysis,thermal analysis,X-ray analysis and SEM is the conventional method of researching the authigenic clay mineral.And now,we are urging the characteristic research method.