原油体积系数匀整的新方法

A New Method of Disposing Even and Orderly Oil Volume Factors

原油体积系数必须经过匀整才能满足油藏工程计算的需要.本文提出了一种匀整体积系数的新方法.这种方法是将原油的相对体积系数用一个压力的多项式表示,然后用最小二乘法求解,此方法非常简单,能够保证原油体积系数的第四位、第五位数字有规律.文中还对新旧两种方法进行了实例对比计算,其结果是一致的.

The oil volume factors must be disposed even and orderly in order to meet the need of calculation in reservoir engineering. This paper presents a new method for disposing even and orderly the oil volume factors which can be expressed as polynomial of a pressure and then be computed by the method of least square. This methed is very simple and can ensure the fourth and the fifth digits of the oil volume factors to be regular. A practical example of computation with both the new and previous methods is also presented in this paper. Their results are coincident.