Development

Utgard is a field in the central part of the Norwegian sector in the North Sea, straddling the boundary between Norway and the UK. The Norwegian share of the field is 62 per cent. Utgard is located 20 kilometres west of the Sleipner area. The water depth is 110-120 metres. The field was discovered in 1982 and the plan for development and operation (PDO) was approved in 2017. The development concept is a 4-slot subsea template with two wells tied-back to the Sleipner T facility for processing and reduction of the CO2 level in the gas. The subsea template is located in the Norwegian sector. The production started in 2019.

Reservoir

Utgard produces gas with high CO2 content and some condensate mainly from sandstone of Middle Jurassic age in the Hugin Formation. Minor hydrocarbon volumes occur in the Sleipner Formation. The field consists of two main segments (west and east) which are in pressure communication via the aquifer. The main reservoirs are at a depth of 3700 metres.

Recovery strategy

Utgard is produced by pressure depletion.

Transport

The well stream from the Utgard field is processed at the Sleipner T facility. The sales gas is exported via Gassled (Area D). The unstable oil is transported by pipeline via Sleipner A to the Kårstø terminal for further processing and export.

Status

The production has been on decline due to early water breakthrough. Currently, only the well in the eastern segment is producing while the well in the western segment is watered out. It is planned to sidetrack both wells in 2024 to increase recovery from the field.