Water injection 2110440 219352649 2008-06-14T20:41:56Z Mwtoews 711150 add an injection well 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 {{disambig}}