Researches on Building Effective Displacement Pressure System of
Advanced Water Injection in B239 Well-Block Reservoir

doi:10.11885/j.issn.1674-5086.2013.11.07.03

Abstract

Abstract:

The Chang 6 ultra-low permeability reservoirs test block of well-block B239 is developed with advanced water injection.
However，the development effect has not reached expectations as planned. For this reason，we carryied out the research
on the effectiveness of advanced water injection on improving development results. Based on the pattern of the infill wells
adjustment，we designed the research plan by combining reservoir engineering and numerical simulation method. Researches
show that the advanced water injection is more effective if the well spacing of the well network system reaches the effective
distance. If the well spacing is too wide，advanced water injection cannot work or the effect is little. In that case high pressure
will only appear at the bottom hole，without effective displacement. This study provides theoretical basis and technical support
to advanced water injection development in other low permeability and ultra-low permeability oilfields，which has an important
guiding significance for the exploitation of such oilfields.

Key words: ultra-low permeability reservoirs, advanced water injection, numerical simulation, effective displacement

Hu Shuyong1, Li Liang1, Wu Rui2, Wang Yujie3, Li Lei1. Researches on Building Effective Displacement Pressure System of
Advanced Water Injection in B239 Well-Block Reservoir[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.11.07.03.

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