The results for well 7122/7-7S have been announced by the NPD and Vår Energi. The well was drilled in the Goliat license PL229 in the Barents Sea with Vår Energi as operator (65% WI) and partner Equinor (35% WI).
The Goliat West well was drilled in an untested fault compartment west of the Goliat field. Target was the Lower Jurassic/Upper Triassic reservoir sandstones of the Tubåen and Fruholmen Formation in the Realgrunnen sub-group. The well was drilled to a vertical depth of 1240 m below sea level and reached TD in the Upper Triassic Snadd Formation. Two levels of hydrocarbon bearing sandstones were encountered in the Realgrunnen sub-group at original pressure and hydraulically separated from each other. The accumulation is separated from the main Goliat Field. The secondary target, the Upper Triassic Snadd Formation was 25m thick, water-wet and of variable reservoir quality.
The Tubåen Reservoir is about 10 m thick and has been encountered gas and oil bearing with excellent reservoir properties; the hydrocarbon column in the Tubåen Formation is estimated to range between 18m to 60m. The oil/water contact was not encountered. The Fruholmen Reservoir has been found oil-bearing and is composed of several sandstone layers with good reservoir properties and a minimum hydrocarbon column of 35 m. The oil/water contact was encountered at 1145 metres.
Recoverable resources for Goliat West are estimated to be between 4.4 and 13.8 million barrels of oil equivalents.
The Goliat field was discovered in 2000 with the discovery well 7122/7-1 and produces from reservoir rocks in the Middle Triassic to the Middle Jurassic. Prior to the drilling of well 7122/7-7 S, the operator’s resource estimate for the field was 198 Mbbl of recoverable oil.
