Waterflooding Boosts Oil Production at Nimr-C in Oman

Water-floods are a method of secondary recovery in which water is injected into the reservoir formation to dis-place residual oil

Waterflooding has increased oil production from Nimr-C field in southern Oman sixfold in 4 years, Petroleum Development Oman (PDO) reported.

The field produced 17,600 b/d in 2014 compared with 2,800 b/d in 2010. Peak production had been 13,800 b/d more than 20 years ago. Nimr-C came onstream in 1987 but had suffered production declines because of falling reservoir pressure.

The turnaround was achieved by injecting large volumes of produced water through the field “to recover the highly viscous oil.”

Water injection has been accompanied by additional infill producer wells. PDO said the $600 million project could result in production of 43 million bbl of incremental oil reserves.

“The Nimr-C team has realized millions of dollars for Oman by reviving a declining field and actively managing the project risks,” said Raoul Restucci, PDO managing director.

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