西南石油大学学报(自然科学版)

Previous Articles     Next Articles

Application of Interval Analysis Method in Design of Fine Water Flooding#br# Injection String

Xia Chengyu, Sun Qiaolei, Feng Ding*, Qian Liqin, Shi Lei   

  1. School of Mechanical Engineering,Yangtze University,Jingzhou,Hubei 434023,China
  • Online:2015-12-01 Published:2015-12-01

Abstract:

As the oilfield development enters the late period,the thickness of the reservoir and mezzanine becomes smaller
and smaller and the traditional water injection technology is unable to meet the requirements of oilfield development. In order
to enhance oil recovery,the fine layered water injection process comes into being. However this process possesses the characteristics
of mass layers and short layer distance,which tends to bring difficulties to accurate calculation. For this reason,an
interval analysis method is proposed in this paper,which takes into consideration the uncertain factors of string deformation and
builds a three dimensional,uncertain model and figures out the deformation interval. In the end,the field data and calculation
results are compared,as a result,both are highly identical and the qualified rate of water is improved distinctly,which will be
of guiding significance for string designing.

Key words: interval analysis, uncertainty, fine water flooding, string design, precise calculation

CLC Number: