石油学报 ›› 2013, Vol. 34 ›› Issue (6): 1119-1124.DOI: 10.7623/syxb201306010

• 油田开发 • 上一篇    下一篇

非均质各向异性裂缝油藏物理模型制作方法

刘月田, 刘剑, 丁祖鹏, 赵义强, 司少华   

  1. 中国石油大学石油工程教育部重点实验室 北京 102249
  • 收稿日期:2013-05-22 修回日期:2013-08-29 出版日期:2013-11-25 发布日期:2013-10-13
  • 通讯作者: 刘月田
  • 作者简介:刘月田,男,1965年5月生,1986年毕业于北京大学力学专业,1999年获石油大学(北京)油气田开发工程专业博士学位,现为中国石油大学(北京)教授、博士生导师,主要从事油藏渗流力学、油气田开发及油藏管理研究。Email:lyt51@163.com
  • 基金资助:

    国家重大科技专项(2011ZX05009)资助。

The method of making physical model for heterogeneous and anisotropic fractured reservoirs

LIU Yuetian, LIU Jian, DING Zupeng, ZHAO Yiqiang, SI Shaohua   

  1. Key Laboratory of Petroleum Engineering of the Ministry of Education, China University of Petroleum, Beijing 102249, China
  • Received:2013-05-22 Revised:2013-08-29 Online:2013-11-25 Published:2013-10-13

摘要:

基于离散化原理建立了一种用于裂缝油藏物理实验的模型制作方法。选取不同物性的天然岩石露头加工制作大量的单元岩块,将单元岩块按特定方式连结形成大尺度岩体,单元岩块之间的缝隙在大岩体内构成三维裂缝系统,从而形成裂缝油藏物理模型。通过选择单元岩块的数量、大小、排列样式以及每个单元岩块的物性参数和黏接方式,可以定量控制模型的尺度、形状,以及模型内部裂缝和基质的渗透率、孔隙度,裂缝-基质间渗吸强度,裂缝密度等物性参数分布,建立满足非均质及各向异性特征的裂缝油藏物理模型。经实例验证,该建模方法可以实现裂缝油藏模型物性参数分布的定量化,制作过程具有可行性和可靠性。

关键词: 离散化, 物理模型, 非均质, 各向异性, 定量化

Abstract:

A modeling method was established for physical experiments of heterogeneous fractured reservoirs on the basis of the discretization principle. A great number of unit outcrop rocks with various physical properties were processed in a special pattern to form a big-size rock, in which bound faces among unit rocks constitute various three-dimensional fracture system, which forms a physical model for fractured reservoirs. By selecting the number, size, arranging pattern, physical property and binding pattern of unit rocks, the size and shape of a model as well as the distribution of physical property parameters within the model can be controlled quantitatively, such as permeability and porosity of both fractures and matrix, imhibition intensity between fractures and matrix, and fracture density. Consequently, an experimental model completely according with the heterogeneity and anisotropy of fractured reservoirs can be established. The application of this model showed that this modeling method can quantify the distribution of physical property parameters of fractured reservoir models and its constitution process is feasible and reliable.

Key words: discretization, physical model, heterogeneity, anisotropy, quantification

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