Shell subsidiary Shell U.K. has restarted production at the Pierce field in the UK Central North Sea following completion of major redevelopment work to enable gas production.

Located around 165 miles (265km) east of Aberdeen, Scotland, in water depths of around 262ft, the Pierce field started oil production in 1999.

The company has completed a significant upgrade to the Haewene Brim floating production, storage and offloading (FPSO) vessel to allow the field to produce gas.

Owned and operated by Bluewater, the Haewene Brim FPSO is used to produce hydrocarbons at the Pierce field.

As part of the redevelopment project, Shell also installed a new subsea gas export line to connect to the SEGAL pipeline system, which is designed to bring gas ashore at St Fergus, north of Aberdeen.

Shell upstream director Zoe Yujnovich said: “We took this investment decision in 2019, and it is now increasing locally produced gas right at the time when this additional supply is critically important for the UK’s energy security.”

With the redevelopment, the field’s production is expected to be more than doubled to 30,000 barrels of oil equivalent per day. More gas is being produced at the field than oil, Shell said.

Shell companies operate the Pierce field with a 92.52% stake while Ithaca Energy (UK) owns a 7.48% interest.

Shell said in a statement: “The redevelopment of the field is consistent with the UK government’s North Sea transition deal and Shell’s powering progress strategy, providing the energy people need today while helping to fund investments in the low-carbon energy system of the future.”