More oil around Edvard GriegUtsira High development. Source: Lundin Petroleum

More oil around Edvard Grieg

The objective of the wells was to prove oil in conglomerates from the Triassic Age in an extension of the Edvard Grieg basin (16/1-31 S) toward the east and in fractured and porous granitic basement rocks northeast of the field (16/1-31 A).

Jorvik and Tellus East discoveries, Utsira High. Source: Lundin Petroleum

At Jorvik, 16/1-31 S encountered oil in 30 m of conglomerate reservoir of Triassic age with a thin, high-quality sandstone above. After extensive coring and data collection, the well was tested at an anticipated low rate of around 130 bopd in the conglomerate interval and pressure measurements show that the area is in communication with the Edvard Grieg field. This combination of conglomerate and sandstone reservoir types are also found on the southern and eastern part of Edvard Grieg, and a horizontal production well in the Jorvik area of the field is expected to flow at commercial rates. The oil/water contact was not proven.

At Tellus East, 16/1-31 A encountered a gross oil column of 60 m in porous, weathered basement reservoir. Extensive data acquisition was carried out, including coring, logging and oil sampling. The oil/water contact is estimated at between 1910 and 1912 m below the sea surface. The Tellus area on the northern edge of the Edvard Grieg field is currently producing from two horizontal production wells that have contribution from porous, weathered basement reservoirs and the Tellus East discovery gives further confidence in the basement potential in this area of the Edvard Grieg field.

Both prospects can be developed with wells from the platform, which will be evaluated in parallel with other infill targets and tie-in opportunities in the area, to optimise the utilisation of the available processing capacity on the facility.