新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (3): 297-299.

• 应用技术 • 上一篇    下一篇

多层油藏模型在稠油热采两区数学模型上的应用

刘振宇1, 何金宝2, 杨建平3   

  1. 1.大庆石油 学院石油 工程学院,黑龙江 大庆 163318;
    2.辽河油田钻采工艺研究院,辽宁 盘锦 124010;
    3.辽河油田SAGD 开项目管理部,辽宁 盘锦 124010
  • 收稿日期:2009-12-07 修回日期:2010-02-05 发布日期:2020-09-17
  • 作者简介:刘振宇(1964-),男,黑龙江齐齐哈尔人,教授,博士,油气田开发,(Tel)0459-6503415(E-mail)lzydqsyxy@163.com.
  • 基金资助:
    黑龙江省教育厅项目(GZ09A121)

Application of Multilayer Reservoir Model to Mathematical Model for Two-Region Thermal Recovery

LIU Zhen-yu1, HE Jin-bao2a, YANG Jian-ping2b   

  1. 1. Petroleum Engineering College, Daqing Petroleum Institute, Daqing, Heilongjiang 163318, China;
    2. Liaohe Oilfield Company, a. Drilling and Production Technology Research Institute, b. Department of SAGD Project Management, PetroChina, Panjin, Liaoning 124010, China
  • Received:2009-12-07 Revised:2010-02-05 Published:2020-09-17

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摘要： 稠油热采过程中普遍存在蒸汽超覆和蒸汽前缘倾斜现象,这对稠油油藏试井分析结果产生很大影响,使原来假设蒸汽前缘具有相同半径的热采两区模型不再适用。为了研究超覆作用对稠油油藏试井分析典型曲线的影响,引入了多层油藏模型,建立了考虑超覆的稠油热采两区模型,把稠油油藏理解成具有不同前缘半径的多层油藏,建立两区数学模型并进行求解,得到井底压力的拉氏空间解,经过数值反演得到考虑超覆的稠油热采两区模型试井典型曲线,并分析各参数对试井典型曲线的影响。此方法的好处在于避免了繁琐的数学推导过程,可以模拟蒸汽前缘为非直线时的情况,并可解决稠油油藏纵向上非均质性的问题。为解决稠油热采试井分析中超覆问题提供新思路。

关键词: 稠油油藏, 试井分析, 超覆, 热采, 典型曲线

Abstract: Common existence of steam overlay during thermal recovery process may create incline of the steam front, which is of great effect on well test analysis result for the heavy oil reservoir by causing the initial model in the condition of the same inner zone radius of the steam front will not be applicable. For this reason, this paper presents the multilayer reservoir two-region mathematical model for heavy oil thermal recovery considering the steam overlay effect. By this model, the Laplace space solution for bottom-hole pressure and well testing type curves are obtained, and the effect of each parameter on the type curves is analyzed. The multilayer model as new thought has the advantages of avoiding the complex mathematical derivation, simulating the nonlinear steam front and dealing with the vertical heterogeneity in such a reservoir.

Key words: heavy oil reservoir, well test analysis, overlay, thermal recovery, type curve

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