Mixing chelating agents with seawater for acid stimulation treatments in carbonate reservoirs

The results of this study confirmed the existence of an optimum injection rate at different temperatures. Also it proposed an optimum chelating agent's concentration that gave an economic stimulation treatment. The comparison between matrix stimulation using chelating agent prepared by deionized water and that prepared using seawater concluded that seawater can be used instead of fresh water in matrix stimulation. The new proposed method that depends on the volume and time can be used effectively to determine the volume and time of the stimulation treatment. We found good match between the optimum injection rate determined in the laboratory and the estimated one.