A major oilfield in the Middle East which has been on production for several years has significant water control issues. The reservoir is a sandstone, mature waterflood play. Newly drilled wells typically started their production life with 60-80% water cut (WC) and quickly this number increased to 80-90% WC within the first 6-8 months of coming on line. The operator had issues managing the high water production and due to this, significant oil remained by-passed and the oil production per well was greatly suppressed and total oil recovery reduced.