Precipitation of Barium Sulphate during the Waterflooding Process in Polish Offshore Oilfields—Case Analysis

The fundamentals of scaling during waterflooding an oilfield are presented. Mineral precipitation is described using both the kinetics approach, with corresponding equations given, and thermodynamic models’ theoretical foundation discussed—mainly specific ion interaction Pitzer models. This paper focuses on process mixing incompatible waters water injection production from oilfield, as this was identified a primary reason for barium sulphate precipitation. Two methods minimizing risk solid phase deposition addition inhibitors removal sulfur compounds through membrane system before into bed shown. In addition, formation damage to near-well zone discussed its implications field operators. Using thermodynamics, especially based HKF-SRK modified model, describes typical conditions hydrocarbon Polish offshore oilfield. case study presented tendency (ST) concentration values distinguish most vulnerable places deposition, topside subsurface. importance avoiding documented shown in comparison non-mixing scenario.