SISP to Enhance Oil Recovery at Ultra-high Water Cut Stage
DEStech Transactions on Environment, Energy and Earth Science(2017)
Abstract
This paper studied force condition of oil droplets in porous media and mechanism of separated-zone water injection and separated-zone oil production (SISP), considering the action of buoyancy on oil droplets during different stages of oilfield development. New idea SISP to enhance oil recovery is that different layers produce in different pressures by controlling fluid production and improving bottom pressure at ultra-high water cut stage. Three different vertical permeability model was designed and each with following five programs. The results show that the greater vertical permeability is, the bigger incremental recovery factor is. SISP is better than co-injection and co-production.
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