按比例油藏物理模型的参数设计

三维按比例油藏物理模型的几何尺寸、时间间隔、注蒸汽速率、地层孔隙度、渗透率、油饱和度、蒸汽的温度、压力和油的粘度等参数与相应油田原型的参数是按比例模拟的。本文的模拟方法有几个特点：１）在冷油带和蒸汽带，用两个不同的相似准则来确定油的粘度；２）模型初始参数的选择，利用最小二乘法概念，用计算程序进行最优化；３）所用相似准则可以兼顾油层吸热和向盖、底层导热两个方面，并可以用单一直径的玻璃珠来模拟油藏岩石。

Determination of parameters for the scaling reservoir physical model

n this method, the parameters such as geometric dimension, duration,porosity, permeability, oil saturation, pressure, temperature, steam injection mass flowrate and oil viscosity in the model are sealingly similar to those in the prototype of reservoir,and can be calculated or determined based on a group of criteria. This method hascharacteristics as follows: 1) the oil viscosity in the model is determined by two criteria, onecomes from the steam zone 1 and the other from the cold zone 1 2) the minimal pressure in themodel is sought by a computer programme in order to ensure that the temperature in themodel is not only in scale but also in accordance with Clausius-Clapyron relationship i 3) acriterion which considers both the heat absorbed by reservoir and the heat transported to caprock and base rock is included.