Gas injection doubles Oseberg main's oil reserves

09/03/2012
The Norwegian Petroleum Directorate has recognized Statoil ASA for improving oil recovery via gas injection at Oseberg field in the North Sea off Norway. Statoil calculates the recovery factor at Oseberg's main reservoir at as much as 69%, compared with a Statoil average of 50% for the entire NCS and 35% for the rest of the world. This translates into improved oil recovery by gas injection of 400-500 million bbl of oil at Oseberg. In fact, without giving a figure, Statoil said it has doubled Oseberg's reserves since submitting the field development plan in the 1980s. Carl Frederik Eek-Jensen, head of petroleum technology in the Oseberg organization, said, "Last year we managed to rep...
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