What do you mean by Water collection pumps?

At times water from the reservoir, separated from the oil, and it is used for the Water Injection. It depends on the oil-water ratio. Sometimes there isn’t sufficient water in the oil so additional water is used. When it is sea water, it is pumped through large pipes which make longer far out into the ocean. It is together in large basins at the Seawater Intake Pumping Station. The seawater is pressurized and it is passed through filters to the de-oxygenation tower.