西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (6): 139-142.DOI: 10.3863/j.issn.1674-5086.2010.06.028

• 石油与天然气工程 • 上一篇    下一篇

断块油藏高含水期水驱规律研究

孟立新1,任宝生1,鞠斌山2   

  1. 1.中国石油大港油田勘探开发研究院,天津 大港 300280; 2.中国地质大学(北京)能源学院,北京 海淀100083
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-12-20 发布日期:2010-12-20

WATER FLOODING PATTERN OF FAULT BLOCK OIL RESERVOIR IN HIGH WATER-CUT STAGE

MENG Li-xin1,REN Bao-sheng1,JU Bin-shan2   

  1. 1.Research Institute of Exploration and Development,Dagang Oilfield,CNPC,Dagang Tianjing 300280,China;2.School of Energy Resources,China University of Geosciences (Beijing),Haidian,Beijing,100083,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-12-20 Published:2010-12-20

摘要: 大港油田油藏类型大多为断块油藏,断层多、断块小、储层非均质性强,且绝大多数已进入高含水、高采出程度阶段,目前,水驱效果不理想。为了进一步改善油藏水驱效果、提高水驱采收率,应用室内高温高压物理模拟实验、油藏数值模拟等技术手段,对断块油藏高含水开发后期的水驱油规律和特点进行了研究。结果表明:断块油藏水驱油效率随长期注水开发储层润湿性向亲水方向变化而逐渐增大;在极限含水以后,通过提高注水倍数虽然仍能提高驱油效率,但需要较长的时间和较高的耗水量。研究成果对高含水油田开发调整思路的制定具有一定的指导、借鉴作用。

关键词: 润湿性变化, 注水倍数, 驱油效率, 驱替程度, 断块油藏

Abstract:

This article has obtained the conclusion that oil displacement efficiency changes as wettability of the long-term water-injection reservoir changes into water affinity by applying the technological means of indoor high temperature and high pressure physical analogue experiment,oil deposit numerical simulation and so on.This research result will offer some guidance and reference to the adjustment of the developing plan in high water oil-field development.

Key words: wettability alteration, water flood multiples, oil displacement efficiency, displacement degree, fault block oil reservoir

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