油气地质与采收率2012，Vol.19Issue(6)：78-81,4.
无夹层底水油藏直井水锥定量描述
Quantitative description of vertical well water coning in bottom water reservoir with no inter\ayer
摘要
Abstract
On the basis of static theory and fluid mechanics in porous medium, this paper derives the relationship between the height and radius of water cone in bottom water reservoir with no interlayer using analytic methods, considering radial fluid flow of oil far from the wellbore and the hemispherical centripetal flow of water in immediate vicinity of wellbore respectively. With the analysis of factors affecting water cone, the typical bottom water reservoir numerical conceptual model is established and the water cone shape with a variety of factors is calculated. Using multivariate nonlinear regression method, the relationship between water cone affecting factors and coefficients a1 , a2 , a3 is determined, the quantitative formula of water coning is set up, and the height and volume of water cone is calculated. The validity of analytical methods and quantitative description formula are confirmed with an xample of Z1 reservoir. The results indicate that quantitative description formula can satisfy the needs of oilfield.关键词
底水油藏/解析方法/数值概念模型/多元非线性回归/水锥定量描述Key words
bottom water reservoir/ analytical method/ numerical conceptual model/ multivariate nonlinear regression/ quantitative description of water coning分类
能源科技引用本文复制引用
谷建伟,姜汉桥,吴义志,郭敏,Yi Bai..无夹层底水油藏直井水锥定量描述[J].油气地质与采收率,2012,19(6):78-81,4.基金项目
国家重大专项"整装油田特高含水期提高采收率技术"(2011ZX05011-002). （2011ZX05011-002）
