Non-balance phenomenon during transformation process of reservoir numerical simulation models

doi:10.7623/syxb201004017

Editorial office of ACTA PETROLEI SINICA ›› 2010, Vol. 31 ›› Issue (4): 617-622.DOI: 10.7623/syxb201004017

• Oil Field Development • Previous Articles Next Articles

Non-balance phenomenon during transformation process of reservoir numerical simulation models

JIANG Ruizhong 1 YANG Renfeng 1,2 LIU Shihua 1,3 ZHANG Xiaoliang 2

Received:2009-12-01 Revised:2010-03-19 Online:2010-07-25 Published:2010-09-25

油藏数值模拟模型转化过程中非平衡现象

姜瑞忠 1 杨仁锋 1,2 刘世华 1,3 张晓亮 2

1中国石油大学石油工程学院山东东营 257061； 2中海油研究总院北京 100027； 3中国石化石油工程技术研究院北京 100101

通讯作者: 姜瑞忠
作者简介:姜瑞忠,男，1964年4月生，1987年毕业于西南石油学院，现为中国石油大学（华东）教授，主要从事油气田开发方面的教学和科研工作。
基金资助:
中国海洋石油总公司科技攻关课题“北部湾盆地涠西南油区注气提高油田开发效果技术研究” （406504）部分成果。

Abstract

Abstract:

The curves of moisture content, flow rate and pressure in the initial development of reservoir are greatly fluctuant during the transformation process of reservoir simulation models. The difference between two models would lead to the fluctuations of curves and the deviation of simulation results and further result in the inappropriate or even incorrect evaluation of prediction scheme. The concept of non-balance phenomenon was proposed, and the resources of the non-equilibrium were analyzed. The equivalent model for solving the fluctuation of curves was presented. The establishment principles and process of the equivalent model were described. The problems resulted from the non-balance phenomenon were successfully solved by taking the real data of Weizhou 11-4 Oilfield as an example. The reasonability of the equivalent model was proved, and a new method for verifying the fitting effect of PVT compositional model was provided.

Key words: reservoir numerical simulation, model transformation, equivalent model, compositional model, PVT fitting, non-balance phenomenon

摘要：

在进行油藏数值模拟模型转化初期，含水量、产油量、压力等曲线会出现较大的波动，这是由于两个模型本身存在着差异，导致结果出现了偏差，致使对后续预测方案做出不恰当甚至错误的评价。针对上述问题提出了非平衡现象，并着重分析了非平衡现象出现的原因，提出了解决上述问题的等效模型，并给出了等效模型建立的基本原则和建立过程。以涠洲11-4油田的实际数据为例，直观地给出了模型转化过程中非平衡现象导致的一系列问题，并对等效模型的合理性进行了检验。等效模型的建立不仅很好地解决了非平衡现象，而且为油田开发工作者提供了验证组分PVT拟合效果的新方法。

关键词: 油藏数值模拟, 模型转化, 等效模型, 组分模型, PVT拟合, 非平衡现象

JIANG Ruizhong YANG Renfeng LIU Shihua ZHANG Xiaoliang. Non-balance phenomenon during transformation process of reservoir numerical simulation models[J]. Editorial office of ACTA PETROLEI SINICA, 2010, 31(4): 617-622.

姜瑞忠杨仁锋刘世华张晓亮. 油藏数值模拟模型转化过程中非平衡现象[J]. 石油学报, 2010, 31(4): 617-622.

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Non-balance phenomenon during transformation process of reservoir numerical simulation models

油藏数值模拟模型转化过程中非平衡现象

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