Study on law of injectivity index per meter change with cumulative water injection

  • ZHANGMingfeng ,
  • TUO Jincai ,
  • ZHANG Xiaojun ,
  • WU Chenjun ,
  • GUO Lijun
Expand
  • 1. Southwest Petroleum University, Chengdu 610500, China; 2. Research Institute of Zhanjiang Branch, CNOOC, Zhanjiang 524057, China; 3. No. 2 Oil Production Plant, PetroChina Changqing Oilfield Company, Qingyang 745100, China

Online published: 2012-02-20

Abstract

When a production well adjusted to an injection well, the water injectivity index of the well will keep increasing with the oil near the well bottom being droved away by the injected water. However, there is no accurate formula to describe the law so far. Based on the Buckley-Leverett equation and the classical Darcy equation, combined with the relationship curve of water cut and water saturation, the relationship formula of the injectivity index per meter and cumulative water injection per meter was deduced. Finally, the field data was used to analyze and verify the validity of the formula. This formula provides a theoretical basis for the future calculation of injectivity index per meter and the well injection allocation.

Cite this article

ZHANGMingfeng , TUO Jincai , ZHANG Xiaojun , WU Chenjun , GUO Lijun . Study on law of injectivity index per meter change with cumulative water injection[J]. Lithologic Reservoirs, 2012 , 24(1) : 112 -116 . DOI: 10.3969/j.issn.1673-8926.2012.01.022

References

[1] 戴家才,郭海敏,彭燕明,等.注水剖面测井确定分层吸水指数方法研究[J].测井技术,2006,30(4):354-356.
[2] 郭晶莹.区块整体调剖方案优化设计及应用[J].科学技术与工程,2010,10(22):5 506-5 508.
[3] 刘宇,张迎春,李红英,等.产液、吸水指数预测方法及其在SZ36-1 油田的应用[J].特种油气藏,2008,15(1):62-64.
[4] 林春阳,郭冀义,马水龙,等.注水井地层吸水规律实验研究[J].实验力学,2008,23(6):511-519.
[5] 李武广,杨胜来,绍先杰,等.注水油田开发指标优选体系与方法研究[J].岩性油气藏,2011,23(3):110-114.
[6] 陈志环,侯维虹,刘伟杰.利用吸水指数曲线研究聚驱后油层性质的变化[J].大庆石油地质与开发,2003,22(1):47-50.
[7] 王陶,朱卫红,杨胜来,等.用相对渗透率曲线建立水平井采液、吸水指数经验公式[J].新疆石油地质,2009,30(2):235-237.
[8] 张建国,雷光伦,张艳玉.油气层渗流力学[M].东营:中国石油大学出版社,2006:146-156.
[9] 葛家理.油气层渗流力学[M].北京:石油工业出版社,1982:159-160.
Outlines

/