新疆石油地质

新疆石油地质 ›› 2007, Vol. 28 ›› Issue (2): 179-181.

• 油气勘探 • 上一篇    下一篇

储集层随机建模中三维变差函数研究

郭凯, 史静, 杨勇   

  1. 中国石油 石油勘探开发科学研究院, 北京 100083
  • 收稿日期:2006-07-20 修回日期:2006-10-23 出版日期:2007-04-01 发布日期:2020-07-31
  • 作者简介:郭凯(1981-), 男, 湖北天门人, 博士, 石油地质,(Tel) 010-62093191(E-mail) guokai@petrochina.com.cn

Study of 3D Variation Function in Reservoir Stochastic Modeling

GUO Kai, SHI Jing, YANG Yong   

  1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
  • Received:2006-07-20 Revised:2006-10-23 Online:2007-04-01 Published:2020-07-31

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摘要： 三维变差函数是反应储集层非均质性最重要的参数。目前储集层随机建模中往往忽略了建立合理的空间变差函数这一基本而重要的储集层物性。针对油气储集层垂向上物性分布的特点,系统分析了奇异值、混合分布和漂移3个主要影响油气储集层物性的三维变差函数求取的地质因素,总结了消除这些地质影响因素的相应操作手段和技术方法,最后归纳提出了三维变差函数求取的工作流程。

关键词: 变差函数, 漂移, 混合分布, 奇异值

Abstract: 3D variation function is the most important parameter showing reservoir heterogeneity. But, this basic factor in today's reservoir stochastic modeling tends to being ignored. In light of vertical distribution characteristic of reservoir petrophysical property, the geologic factors affecting the 3D variation function such as singular value, hybrid distribution and drifting are systematically analyzed. The corresponding measures and methods for eliminating these factors are outlined, and the work flow for solving the 3D variation function is proposed in this paper.

Key words: variation function, drifting, hybrid/mixed distribution, singular value, outlier

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