孢粉相对密度及其在石油地质中的应用——以东营凹陷古近纪为例  

SPORE-POLLEN RELATIVE DENSITY AND ITS APPLICATION IN PETROLEUM GEOLOGY——A CASE STUDY FROM THE PALEOGENE DONGYING SAG

作　　者：贺振建[1] 王长轩[1] 李慧[1] 张存霞[1] 何青芳[1] 

机构地区：[1]中国石化股份胜利油田分公司地质科学研究院,山东东营257015

出　　处：《微体古生物学报》2011年第4期429-434,共6页Acta Micropalaeontologica Sinica

基　　金：中石化"东营南坡红层基本地质特征与油气成藏"(P09009)项目支持

摘　　要：为了充分利用已有的非定量分析孢粉资料,开展孢粉相及孢粉与烃源岩关系研究,引入"孢粉相对密度"概念,定义为孢粉样品鉴定中每个盖片数的孢粉个数。根据牛28井相同井段对比分析,孢粉相对密度的变化趋势与地层中孢粉实际含量的变化趋势一致。以东营凹陷古近纪为例,探讨了孢粉相对密度在石油地质中的应用。可以利用孢粉相对密度进行层序划分对比,孢粉相对密度在区域上的变化具有同步性。通过对孢粉相对密度在横向上分布规律研究,能为研究孢粉量的区域分布特征提供依据。Defined'Spore-Pollen Relative Density'as the number of spore-pollen per cover-glass,it makes full use of existing non-quantitative analysis data of spore-pollen,to study palynofacies or the source rock relationship with spore-pollen.Analysis of the data in same depths from Borehole Niu 28 shows that the curves of the spore-pollen rela-tive density and of the actual spore-pollen content are similar.By taking the Paleogene system in the Dongying Sag,Shandong for example,Spore-pollen Relative Density and its application in petroleum geology are discussed.The spore-pollen relative density can be used in sequence subdivision and comparison for its isochronism in the region.Re-search on the distribution of the spore-pollen relative density provides a basis for studying the distribution of the spore-pollen content.

关 键 词：孢粉 相对密度 层序 石油地质 古近纪 东营凹陷 山东 

分 类 号：P618.13[天文地球—矿床学]