黄福堂,蒋宗乐,孟凡冬
Huang Futang; Jiaug Zongle and Meng Fandong ;(Research Institute of Exploration and Development;

• 1:大庆石油管理局勘探开发研究院
• 2:大庆石油管理局勘探开发研究院
• 3:大庆石油管理局勘探开发研究院

摘要(Abstract)：

本文根据大庆油田历年来密闭取心油水饱和度与残余油物理化学性质分析资料,研究了注水开发油田储层残余油物理化学性质变化特征与变化因素,初步探讨了储层不同含水饱和度与残余油含量变化与分布,并提出了残余油物理化学性质与变化因素的研究方法。 本文认为储层残余油性质变化很大程度上决定于水洗程度、注入水的性质及水中各种金属元素含量变化。由于注入水的长期冲刷,必然造成残余油中轻组分的减少,重组分富集,而使储层残余油的相对密度,平均分子量,非烃和沥青质含量发生变化。本文研究结果表明,残留在微细孔隙中受毛细管力束缚及未水洗到夹层内与低渗透带的残余油物理化学性质稳定。
The physicochemical properties of residual oil in the reservoir rocks are studied according to the analytical data of oil-water or residual oil saturation obtained from Daqing oilfield with pressure-tight coring over the years. The changes and distributions of water or residual oil saturation in the reser voirs are discussed and a method has been advanced to research them as well. It is suggested that the physicochemical properties of reservoir residual oil are varied with the.flushing effect and metallic elements of injected water. Owing to the long-time flushipg of injected water, the light and heavy components of the residual oil are bound to decrease and concentrate respectively, so that the relative density, average molecular weight, nonhydrocarbons and bituminous matters are changed. The experiment results indicate that the phvsicochemical properties of residual oil in the microporous nonflushed interlayers and low permeability zones are stable because of the effect of capillary force acting on it.

关键词(KeyWords)： 注水开发油田;残余油;物理化学性质;变化特征;因素
: water flooded, residual oil, physicochemical property,character istic change, variation factor

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 黄福堂,蒋宗乐,孟凡冬
Huang Futang; Jiaug Zongle and Meng Fandong ;(Research Institute of Exploration and Development;

DOI: 10.19597/j.issn.1000-3754.1990.01.014

参考文献(References)：

• [1]黄福堂:油田注水开发过程中储层岩石表面性质变化因素研究,《石油勘探与开发》,第3期,1985年.
• [2]黄福堂:油田注入水中溶解氧、微量金属元素对原油物理化学性质的影响,《石油学报》,第4卷,第3期,1983年。
• [3]黄福堂:细菌对原油生物化学作用的探讨,《石油勘探与开发》,第5期,1982年。
• [4]黄福堂:大庆油田注水开发过程中储层原油物理化学性质变化特征与变比因素研究,《大庆石油学院学报》,第2期,1985年。