泌阳凹陷三类三角洲沉积特征及储集性能  

THE SEDIMENTARY AND RESERVOIR CHARACTERISTICS OF THREE TYPES OF DELTAS BIYANG DEPRESSION

作　　者：邱荣华[1] 李纯菊[1] 郭双亭[1] 

机构地区：[1]河南石油勘探局石油勘探开发研究院

出　　处：《石油勘探与开发》1994年第1期99-105,共7页Petroleum Exploration and Development

摘　　要：泌阳凹陷主要含油目的层下第三系核三段发育有三种不同类型的三角洲沉积砂体：①扇三角洲；②近源三角洲；③正常三角洲。受古构造、古水系、物源等地质条件的控制，不同类型的三角洲分布在凹陷的不同部位，且其沉积特征和储集性能均具明显差异。本文从骨架相构成、层理类型、垂向层系、内部相带发育状况等方面阐述了三种类型三角洲的沉积特征，进而对三种类型三角洲砂岩储层的储集性能作了论述。Biyang depression covers an area of only 1000 km2. Not only is it known as small and abundant oil and gas, but also there are several varieties of sedimentation models. There are threetypes of delta in the main oil-bearing formation, the Eh3 group:(1)fan delta;(2)near sourceriver delta; (3)normal river delta. Under the control of palaeo-structure, palaeo-drainagepattern, source of material etc., the different types of delta are distributed in the differentparts of this depression, their sedimentary and reservoir characteristics are substantially different also. Furthermore, these deltas form reservoirs in various oil field in the depression.Based on a study of the sedimentary framework, the types of bedding, the vertical depositional sequence and the sub-factes distribution,etc.. This paper describes the sedimentary characteristics of three types of delta, and then presents the reservoir characteristics of their sandstones.

关 键 词：沉积 石油勘探 储集层 

分 类 号：P618.130.2[天文地球—矿床学]