Development

Flyndre is a field in the southern part of the Norwegian sector in the North Sea, straddling the border between the Norwegian and UK sectors. The Norwegian share of the field is seven per cent. Flyndre is located 35 kilometres northwest of the Ekofisk field. The water depth is 70 metres. Flyndre was discovered in 1974, and the plan for development and operation (PDO) was approved in 2014. The development included a subsea horizontal well tied-back to the Clyde platform on the UK continental shelf. The production started in 2017.

Reservoir

Flyndre produced oil and associated gas from Balmoral sandstone of Paleocene age. The reservoir is at a depth of 3000 metres and has moderate to good quality. There is also oil in Upper Cretaceous chalk with poor reservoir quality at a depth of 3100 metres.

Recovery strategy

The field was produced by pressure depletion. Only the Balmoral reservoir was developed.

Transport

The well stream was processed on the Clyde field. Liquids were transported to the Fulmar platform and further to Teesside in the UK via Norpipe. Some of the gas was used offshore for fuel and flare on the Clyde and Fulmar fields, with the remainder going to the terminal of the Shell-Esso Gas and Liquids (SEGAL) system at St Fergus in the UK.

Status

Flyndre was shut down in July 2023.