Water scaling case studies in a Kuwaiti oil field

This paper presents a computer scaling study on the effluent waters from four Gathering Centers (GC) of an oil field in the State of Kuwait. The experimentally measured chemical analyses of effluent waters and that of formation water were used by computer software to determine the tendency of scale formation. The scaling results for the commingling of individual effluent waters with formation water at reservoir temperatures and pressures are presented. In order to determine scaling tendency, four case studies were investigated. Attention was made on the scaling tendency of CaCO3 and BaSO4 for various mixing proportions of effluent water with formation water.It was found that commingling of the effluent water and formation water may lead to calcium carbonate and barium sulphate scaling above 50% effluent water.