摘要
通过对松辽盆地宋芳屯油田芳3区块葡萄花油层砂岩储层岩性、物性、沉积环境及地质特征的研究,对葡萄花油层砂岩储层的物性特征及其影响因素进行了系统的分析,认为长石砂岩和岩屑质长石砂岩是主要砂岩类型,岩性有粉、细砂岩等,但以粉砂岩为主。砂岩主要沉积于弱氧化-弱还原的浅水三角洲前渊环境。砂岩胶结物主要为泥质和碳酸盐;胶结类型以接触-再生、孔隙-接触及混和式为主。储层物性属于中低孔、中低渗特征,主要受胶结物含量、沉积环境控制,以水下分流河道、分流河道砂岩物性最好,三角洲前缘席状砂和河口坝砂岩物性相对差。
In this paper,by analysis of reservoir characteristic,lithology,sedimental environment and geological feature of Putaohua oil layer in Fang 3 area Songfangtun oilfield,Songliao basin,the outhors disccuss reservoir characteristics and it's influence factors. Feldspathic sandstone and detritus sandstone are the main type of reservoir which's lithology has siltstone,fine sandstone etc. and which's cementation types have mainly contact-regenesis,porosity-contact ,intermix etc.The sandstone's cementation matter are mainly mud ,carbonate etc. The reservoir feature belongs to medium-low porosity and permeability.The sedimental environment and the storage characteristic is main controlling factors of the reservoir charateristic.In the underwater diffluence riverway and the diffluence riverway, sandstone's porosity and permeability is best and in the delta front and the estuarine dam,it is lower.
出处
《西北地质》
CAS
CSCD
2005年第2期76-81,共6页
Northwestern Geology
基金
中国石油大学(北京)石油与天然气成藏机理教育部重点实验室
