Abstract: In order to simulate steamflood in oil reservoirs a set of similiarity groups has been inferres with equation analysis method and engineering judgement. On such a basis, a vacuum physical simulated test equipment has been built. Taking two blocks, East-2 in Block 6 and Block 9 in Kelamay oil field, as prototypes, scaled models were made. A series of simulated test was carried out. The commen characteristics of two reservoirs are: the crude oil is a medium-viscous oil(viscosity 430～3300 mPa.s), the dinsity of the crude oil is rather light(0.91-0.92g/cm³)and the net thickness of both reservoirs are thin(about 13m). Main objects are studied on:(1)the effect of steam injection rate on oil recovery and oil-steam ratio,(2)the effect of injected steam quality on oil recovery and oil-steam ratio,(3)the effect of location of the perforetion,(4)the effect of initial oil saturation. The results of study on the effect of the paramiters and the analysis of the experimental phenomena are presented in this paper.

摘要： 本文利用方程分析法,结合工程判断,推导出一套模拟蒸汽驱的相似准则。以此为依据,建成了真空物理模拟实验装置。以克拉玛依油田六东二区和九区两个区块为原型,制作了比例模型,进行了模型试验。这两个区块油藏的共同特点是,原油属中等粘度,油层的有效厚度较薄。模拟试验对于蒸汽注入速度、注入蒸汽干度、射孔位置、油藏含油饱和度的影响进行了研究。