WATERFLOOD is validvalid

[v WATERFLOODED, WATERFLOODING, WATERFLOODS]

144,638 of 196,601 in NWL2023·also valid in CSW24

a flood of water; an inundation [n -S] / to inject water to maintain pressure in a reservoir and to drive the oil etc. towards the production wells [v -ED, -ING, -S]