西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (6): 113-116.DOI: 10.3863/j.issn.1000-2634.2008.06.027

• 石油与天然气工程 • 上一篇    下一篇

粘弹性稠油的驱替特征及其影响因素分析

徐丕东1,2 王丽霞1 苏玉亮1   

  1. 1.中国石油大学地球资源与信息学院,山东 东营 257061; 2.中国石化胜利油田分公司地质科学研究院,山东 东营 257015
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

DISPLACEMENT CHARACTERISTICS OF VISCOELASTIC HEAVY OIL AND THE ANALYSIS ON INFLUENCING FACTORS

XU Pi-dong1,2 WANG Li-xia1 SU Yu-liang1   

  1. 1.College of Georesources and Information,China University of Petroleum,Dongying Shandong 257061,China;2.Geological Scientific Research Institute,Shengli Oilfield Company,SINOPEC,Dongying Shandong 257015,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

摘要: 在粘弹性稠油一维两相驱替数学模型基础上,考虑影响稠油松弛特性的两个因素:温度和胶质-沥青质含量(体积分数),进行了数值求解,分析了松弛特性的影响因素及其对水驱稠油的影响。分析表明:温度越高,松弛特性越弱;胶质-沥青质含量越高,松弛特性越强,粘弹特性越显著;松弛特性可以降低驱替压力梯度,提高含水饱和度,推迟见水时间,延长开采时间,提高采收率,改善水驱粘弹性稠油的开发效果,但其影响随着温度的升高或胶质-沥青质含量的降低而减弱。研究成果为粘弹性稠油的驱替特征及其开发效果的研究提供了理论指导。

关键词: 粘弹特性, 驱替特征, 温度, 胶质-沥青质含量

Abstract: A onedimension two phases flooding mathematical model is established to describe the viscoelastic heavy oil displacement,which considers the two factors of temperature and pectinbitumen content and is solved with numerical method.The effects of influencing factors and relaxation property on the displacement of viscoelastic heavy oil are analyzed.The results show that,the relaxation property gets weaker as the temperature and pectinbitumen bulk fraction content gets higher.The higher the temperature and the less the pectinbitumen content,the weaker the relaxation property is.The property will decrease the displacement pressure gradient and increase the water saturation,delay the water breakthrough time and prolong the production time,which is helpful to improve the development efficiency.However,its function will weaken as the increase of temperature or the decrease of the content.The research result provides theoretical guidance for the research of displacement characteristics and development efficiency of viscoelastic heavy oil.

Key words: viscoelastic property displacement characteristic

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