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长岩心水驱油实验是在最新研制的可动胶驱替流程上进行的,该实验模拟江河区注水开发条件,通过321h18min的连续水驱试验,取样32个,对样品进行原油组分、轻烃分析。证实了注水开发油层中原油的一切物理性质变化都是由原油组成变化即质的变化引起的;轻烃组分对水洗敏感,在水洗作用下减小最快,使用苯、甲苯及其同碳数烷烃之间的比值,可以用来判别油层水淹程度;沥青A、族组分分析和轻烃分析是评价油层水淹、水洗程度的有效分析方法。该文提供了油藏地球化学方法研究油层水淹程度的依据。
The long core water flooding experiment was carried out on the newly developed movable glue flooding process. The experiment simulated the waterflood development conditions in the river area. Through the continuous water flooding test at 321h18min, 32 samples were taken and the crude oil components, light Hydrocarbon analysis. Confirmed that all the physical properties of crude oil in waterflooding reservoirs are caused by changes in the composition of the crude oil, ie, changes in the quality; the light hydrocarbon components are sensitive to water washing and reduce fastest under water washing; benzene, toluene and their carbon The ratio of alkanes can be used to judge the degree of flooding of oil layer. Asphalt A, component analysis and light hydrocarbon analysis are effective methods to evaluate the water flooding and water washing degree. This paper provides a basis for reservoir geochemical methods to study the degree of water flooding.