新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (4): 498-499.

• 讨论与争鸣 • 上一篇    下一篇

油水界面倾斜原因分析

李传亮   

  1. 西南石油大学 油气藏地质及开发工程国家重点实验室, 成都 610500
  • 收稿日期:2005-07-12 出版日期:2006-08-01 发布日期:2020-10-19
  • 作者简介:李传亮(1962-), 男, 山东嘉祥人, 教授, 博士, 油藏工程,(Tel) 028-83033291(E-mail) cllipe@sina.com.

Theoretical Analysis of Dipping Water-Oil Contacts

LI Chuan-liang   

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2005-07-12 Online:2006-08-01 Published:2020-10-19

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摘要： 根据渗流力学的理论计算,分析认为地下现今地层中水的运动不可能导致油水界面的倾斜;同时,又根据岩石物理的有关理论,分析了岩石物性导致油水界面倾斜的原因。分析研究认为,古水流导致岩石物性的差异,岩石物性的差异又导致毛细管压力曲线的不同,继而导致了油水界面沿古水流方向向上倾斜的现象。

关键词: 地层, 油水界面, 毛细管压力, 露头

Abstract: Based on the theory of flow in porous media, the analysis shows that the current flow of underground water cannot become the real cause of water-oil contact (WOC) dipping in most cases. According to the theory of petrophysics, the reasons of dipping of WOC could be related to the difference of petrophysical properties resulted from ancient flow direction, and the difference results in the different capillary pressure curves of rocks. Finally, these differences cause the dipping of WOC upward along the ancient flow direction.

Key words: formation, water-oil contact, WOC, capillary pressure, outcrop

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