石油大学学报(自然科学版)2001，Vol.25Issue(2)：42-45,4.
油水两相渗流压降数值试井模型的建立
CONSTRUCTION OF NUMERICAL PRESSURE DROP MODELS FOR OIL-WATER FLOW
摘要
Abstract
The concept of multi-phase numerical welltest(MPNW) is proposed. The difference between MPNW and conventional reservior simulation is analyzed. The unstructured gridding techniques used in MPNW is introduced. The discretization formula of govemig equations for oil and water flow is given. The production rate model is derived with the coupling of wellbore storage and skin factor. The result of MPNW is checked with the pressure method for multiphase welltest analysis. It is found that the pressure derivation curve goes up with the emergence and increase of saturation gradient. The normalization method of pressure method is modified to deal with the increase. Modified log-log curves overlap with the log-log curves for single-phased flow under the condition of the same parameters. The boundary effectiveness can be detected from the two-phase pressure drop curve.关键词
两相流/数值试井/黑油模型/网格技术/饱和度/压降/控制方程分类
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刘立明,陈钦雷,王光辉..油水两相渗流压降数值试井模型的建立[J].石油大学学报(自然科学版),2001,25(2):42-45,4.
