Entry from British & World English dictionary
(In the oil industry) the forcing of water into a reservoir formation, in particular as a technique of secondary recovery.
- All of these fields are old, but they have managed them in a ‘gold standard’ fashion by instituting careful and rigorous water injection to maintain very high reservoir pressures.
- Much of Iraq's infrastructure is wrecked and some oil reservoirs may have been damaged by over-pumping, water injection or flooding.
- It cites the fact that 90% of its oil comes from seven giant fields, all of which are mature and increasingly in need of water injection to keep pressure high underground.
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