摘要
通过岩心观察、薄片鉴定、扫描电镜、测井解释等多种分析手段,从火山岩岩性特征、岩相特征、孔隙类型等方面研究了克拉玛依油田六、七、九区石炭系火山岩储层的特征,分析了火山岩储层的储集空间类型、储集空间与渗流通道的配置关系以及储层物性的影响因素。研究结果表明:区内火山岩岩石类型主要为火山熔岩、火山碎屑岩和沉积火山碎屑岩。熔岩以玄武岩、安山岩为主,火山碎屑岩与沉积火山碎屑岩主要为火山角砾岩、凝灰岩和沉凝灰岩。按孔隙结构火山岩储集空间可分为气孔、孔隙、裂缝3大类,按成因可分为原生和次生2大类;火山岩的储集性能主要受火山岩的岩性、岩相、构造作用以及风化淋滤作用的影响。
The reservoir characteristics including lithology, lithofacies, pore type of the Carboniferous volcanic rocks in the 6th,the 7th and the 9th areas of Karamay oil field are analyzed based upon core observation, thin section identification, scanning electron microscope analysis and well logging interpretation. The reservoir pore space types, relationship between the reservoir spaces and flowing passageway and main parameters affecting the reservoir quality are also studied. The results indicate that the major rocks are lava which includes basalt and andesite, pyroclastics and pyroclastic sedimentary which includes volcanic breccia, tuff and sedimentary tuff. Three types of reservoir spaces including vesicles, pores and fractures can be classified based on the pore structures, and the primary and secondary pores can be identified based upon origin. The major controlling parameters for reservoir quality are petrology, lithofacies and tectonic action as well as weathering and leaching processes.
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2010年第1期48-55,共8页
Journal of Jilin University：Earth Science Edition
基金
国家自然科学基金项目(40872083)
关键词
储集空间类型
控制因素
石炭系
火山岩
克拉玛依油田
reservoir pore space
controlling factor
Carboniferous
volcanic ro.cks
Karamay oil field
