The term water injection may refer to:
- Water injection (engines), for increasing efficiency or power of internal combustion engines
- Water injection (oil production), for increasing the amount of petroleum extracted from oil wells
- Water injection well, a type of groundwater well through which water is injected into an aquifer system
Famous quotes containing the word water:
“A single monk carries his own bucket of water; two monks carry their bucket of water together; but when there are three monks, there is no water at all.”
—Chinese proverb.