W4A1T1E1R1F4L1O1O1D2E1D2
20 points
WATERFLOODED is validvalid
WATERFLOOD, [v]
WATERFLOOD, to inject water to maintain pressure in a reservoir and to drive the oil etc. towards the production wells [v]
WATERFLOOD, [v]
WATERFLOOD, to inject water to maintain pressure in a reservoir and to drive the oil etc. towards the production wells [v]