Troll development could impact other fields

Stepping up gas production from Norway's Troll field could have negative consequences for other fields in the area, according to a joint study by Hydro and Statoil.

Offshore staff

OSLO, Norway --Stepping up gas production from Norway's Troll field could have negative consequences for other fields in the area, according to a joint study by Hydro and Statoil.

The study, which was requested by the Norwegian Petroleum Directorate (NPD), was based mainly on a rough regional reservoir simulation model. The results suggest that increasing Troll's gas output would have a significant impact on pressure development in this part of the North Sea, from the Gjøa field to the northeast to Brage in the southwest.

There has been a steady pressure decline since production started on Troll, although the effects have been offset by water and/or gas injection. However, the decline will gather pace, according to NPD. This makes future production of reserves in the area time-critical.

NPD believes Troll's resources must therefore be managed to provide maximum benefits, as the field contains around 10% of all Norway's remaining oil and gas. The government's ultimate goal is to develop 5 Bbbl of new reserves across the Norwegian shelf by 2015.

09/14/2007

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