摘要
通过分析岩石薄片、扫描电镜、物性、毛管压力曲线等资料及测井解释结果,从沉积特征、储层展布、物性特征、岩性特征、孔隙类型及孔隙结构、主控因素等方面对乌南次凹南屯组二段储层进行了综合评价,认为该储层为一套低孔、低渗储层,其物性主要受沉积微相及成岩作用控制。综合储层的岩性、物性、成岩后生作用和孔隙结构等特征,对乌南次凹南屯组二段储层进行了分类,南二段主要发育Ⅱ类储层,有少量Ⅰ类储层。
By analyzing the data of rock slice, electron microscope scanning, physical property, capillary tube pressure curves and so on, the reservoir of the 2nd member of Nantun formation in South Wuerxun sub-sag was synthetically evaluated from the aspects like the deposition characteristics, reservoir distribution, property characteristics, lithological characteristics, pore types and pore structures. Therefore the conclusion can be reached that this reservoir is a low porosity and low permeability reservoir with the prop- erty controlled by sedimentary microfacies and diagenesis. Combined with the reservoir characteristics such as lithology, property, diagenetie epigenesis and pore structure, the 2nd member of Nantun formation in South Wuerxun sub-sag was classified to obtain the result that type II reservoir was mainly developed here with little type I reservoir.
出处
《油气藏评价与开发》
2013年第6期5-9,共5页
Petroleum Reservoir Evaluation and Development
关键词
海拉尔盆地
乌南次凹
储层特征
孔隙结构
成岩作用
Hailaer basin, South Wuerxun sub-sag, reservoir characteristic, pore structure, diagenesis
