新疆石油地质

新疆石油地质 ›› 2007, Vol. 28 ›› Issue (3): 341-343.

• 油藏工程 • 上一篇    下一篇

对油藏模型网格粗化中REV 理论的探讨

祁大晟1, 平锐2   

  1. 1.中国石油大学 石油天然气工程学院, 北京 102249;
    2.中国石油 新疆油田分公司 勘探开发研究院, 新疆 克拉玛依 834000
  • 收稿日期:2006-01-15 出版日期:2007-06-01 发布日期:2020-07-31
  • 作者简介:祁大晟(1951-), 男, 山西夏县人, 副教授, 博士, 油气田开发,(Tel) 010-89733475(E-mail) dasheng.qi@163.com

A Probe to REV Theorem for Reservoir Upscaling

QI Da-sheng1, PING Rui2   

  1. 1. College of Oil and Gas Engineering, China University of Petroleum, Beijing 102249, China;
    2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2006-01-15 Online:2007-06-01 Published:2020-07-31

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摘要： Lasseter等(1986)提出油藏模型网格粗化(ReservoirUpscaling)应当在表征体元(RepresentativeElementaryVolume,简称REV)级进行。REV指一种特定的体积元,在这种体积元测取的物性参数将在一定的比例尺范围内保持不变。REV理论一直是一个有争议的概念,因为其定义不十分清晰,且没有说明如何在真实油藏中获取之。因此,甚至有人怀疑在真实油藏中,是否真的存在REV。基于REV理论,提出了一个新的概念——表征体元网格,(RepresentativeElementaryVolumeGrid,简称REVG)。该网格体系在给定的比例尺范围内可最佳地描述油藏的非均质性。从物理意义上讲,在REVG系统中,每个网格内的物性差异最小,而网格间的物性差异最大。

关键词: 油藏模型网格粗化, REV(表征体元), REVG(表征体元网格)

Abstract: Lasseter et al. (1986) proposed that scale-up of prtrophysical property should be done from the scale of a representative elementary volume (REV), a volume for which the measured property does not change with an increase in scale over a given limit of scale. The notion of REV has been a controversial concept because its definition is not clear-cut, and it didn't address how to obtain it in real reservoir system. There has even been some argument as to whether REV really exists. This paper, based on the REV concept, proposes the new idea of a REVG (Representative Elemental Volume Grid). The REVG is applied to best describe the heterogeneity of an original reservoir model for a given scale. Mathematically, in REVG system, the variance of properties will be smallest within each grid, and biggest between grids. REVG is the physical target for upscaling in reservoir simulation.

Key words: reservoir upscaling, representative elementary volume (REV), representative elementary volume grid (REVG)

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