利用地面原油物性推算原始原油体积系数求取方法

Calculation Method of Crude Oil Volume Coefficient Deduced From Physical Properties of Surface Crude Oil

为节约勘探成本或未能深井取样等原因,但希望间接取得相对准确的地下原始原油体积系数Boi。本文从辽河油田整体出发,探索直接采用地面原油物性求取Boi的多元回归公式。从全油田历年实测高压物性资料入手,获得适合全油田求取Boi的经验公式。同时采用资料进行可靠性分析,确定该公式不受原油性质、饱和程度等因素的影响,具有推广价值。

In order to save the cost of exploration or not to take the deep well sampling and hope to obtain the relative accurate crude oil volume coefficient Boi indirectly.From the Liaohe Oilfield as a whole,this paper does some research on the multiple regression formula for the direct use of the physical property of the ground oil.Based on the measured data of high pressure physical properties in the whole oilfield,the empirical formula Boi suitable for the whole oilfield is obtained.At the same time,reliability analysis was carried out by some data.It was determined(sure)that the formula was not affected by some factors such as the nature of crude oil and saturation degree and so on,and has popularization value.