摘要
按油气藏流体类型可将油气藏划分为气藏、凝析油气藏、挥发油藏、一般黑油油藏和稠油油藏等,但仅从常规流体物性判断两种典型流体类型之间过渡的边缘流体类型是困难的,比如由黑油到挥发油,原油组分和性质的变化是一个渐变过程,因而严格地划出黑油和挥发油之间的界线有一定困难。从相态特征、地面原油物理特征、流体组成特征、高压物性特征等方面,对油藏流体类型、特别是边缘流体类型进行了划分,为进一步综合准确判定油藏流体类型提供了可借鉴的方法。以石西油田石炭系油藏为例,应用上述方法综合判别其油藏类型为挥发性油藏。
According to reservoir fluid type,it could be divided into gas reservoir,condensate gas reservoirs,volatile reservoir,ordinary black oil reservoirs and heavy oil reservoirs.But it was difficult to judge the type of marginal fluid between the two classical fluid types based on conventional fluid physical properties.For example,the variation of the oil component and properties was gradually changed from black oil to condensate oil.So,it was hard to determine a demarcation line between them.From the aspects of phase behavior,surface oil physical properties,fluid component,high pressure physical properties,it can provide a way for comprehensively and accuratly judging reservoir fluid type,especially the marginal fluid properties.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2011年第4期43-46,165-166,共4页
Journal of Oil and Gas Technology
关键词
流体类型
相态
原油组分
石西油田
fluid type
marginal fluid
phase state
oil component
Shixi Oilfield
