鄂尔多斯盆地南部中生界成岩圈闭  

THE MESOZOIC DIAGENETIC TRAP OF SOUTHERN ORDOS BASIN.

作　　者：杨昀[1] 

机构地区：[1]长庆石油勘探局勘探开发研究院

出　　处：《石油勘探与开发》1996年第3期34-39,共6页Petroleum Exploration and Development

摘　　要：本文在前人工作的基础上，从成岩后生作用入手，探讨了鄂尔多斯盆地南部中生界成岩圈闭特征、成因机制及其形成阶段。油藏边、底部形成的致密遮挡带对油气起到封闭作用，也会影响开发过程中边水能量的补充，还关系到注水井网的部署，是油田勘探开发中值得注意的问题。Proceeded from epigenesis and on the basis of the predecessors' work,this paper probes into the characteristics, genetic mechanism and forming stages of the Mesozoic diagenetic trap in the southern Ordos basin. It presents that the tight barrier belt formed in the margin and bottom of the reservoir seals the hydrocarbon, and points out that the less permeable belt in the periphery of the reservoir not only influences the supply to edge water energy during development, but also has a bearing on the arrangement of the injection well pattern. Therefore, the presence of the tight barrier belt in question is noticeable in the oil exploration and field development.

关 键 词：成岩作用 后生作用 成岩圈闭 重质油 致密砂岩 

分 类 号：P618.130.2[天文地球—矿床学]