石油学报 ›› 2005, Vol. 26 ›› Issue (2): 80-84.DOI: 10.7623/syxb200502018

• 油田开发 • 上一篇    下一篇

任11裂缝性底水油藏注气提高采收率研究

杜玉洪1,2, 孟庆春2, 王皆明3   

  1. 1. 西南石油学院, 四川成都, 610500;
    2. 华北油田勘探开发研究院, 河北任丘, 062552;
    3. 中国石油勘探开发研究院廊坊分院, 河北廊坊, 065000
  • 收稿日期:2004-09-08 修回日期:2004-10-10 出版日期:2005-03-25 发布日期:2010-05-21
  • 作者简介:杜玉洪,男,1965年2月生,1987年毕业于西南石油学院,现为华北油田勘探开发研究院副院长、高级工程师,西南石油学院在读博士,主要从事油气田开发研究工作.E-mail:yjy_dyh@petrochina.com.cn
  • 基金资助:
    中国石油天然气股份公司科技攻关项目(0401182)研究成果.

Study on enhanced oil recovery of Ren 11 fractured bottom water reservoir by gas injection

DU Yu-hong1,2, MENG Qing-chun2, WANG Jie-ming3   

  1. 1. Southwest Petroleum Institute, Chengdu 610500, China;
    2. Exploration and Development Research Institute of Huabei Oilfield, CNPC, Renqiu 062552, China;
    3. Langfang Branch of Research Institute of Petroleum Exploration and Development, CNPC, Langfang 065000, China
  • Received:2004-09-08 Revised:2004-10-10 Online:2005-03-25 Published:2010-05-21

摘要: 对任11裂缝性底水油藏注气提高采收率的可行性进行了研究,评价了注气地质特征和水驱开采特征。同时,借鉴雁翎油田注氮气驱油试验成果,进行了注气驱油机理和流体界面运动规律的研究,提出了注气采油方案,并分析了地下储气库与提高采收率的协调关系。结果表明,任11裂缝性底水油藏的盖层具有良好的密封性,可以形成次生气顶和富集油带,具备注气提高采收率和建立地下储气库的地质条件。同时表明裂缝性潜山油藏注气与建设地下储气库相结合可以提高原油采收率。

关键词: 任11油藏, 注气技术, 提高原油采收率, 裂缝性潜山油藏, 地下储气库, 综合评价

Abstract: The feasibility of enhanced oil recovery (EOR) of Ren 11 fractured bottom water reservoir by gas injection was studied.The geological characteristics of gas injection and production performance by water flooding were comprehensively studied and evaluated.Based on the tested results of oil displacement by nitrogen injection in Yanling Oilfield,the mechanism of oil displacement by gas injection and the movement rules of fluid interface were investigated.A plan for producing oil by gas injection was worked out.The relation between underground gas storage and EOR measures was coordinated.The results show that the cap rock of Ren 11 fractured bottom water reservoir has good sealing property,and secondary gas cap and oil enrichment zone can be formed there.The geologic condition of Ren 11 reservoir is suitable for gas injection to enhance oil recovery and for establishment of underground gas storage.It is suggested that oil recovery can be improved in fractured buried hill reservoirs by building underground gas storage while injecting gas.

Key words: Ren 11 reservoir, gas injection technology, enhanced oil recovery, fractured buried hill reservoir, underground gas storage, comprehensive evaluation

中图分类号: