Marathon Oil Norge has announced the completion of drilling of the wildcat well 25/10-11 that tests the Earb South prospect in PL505. The company has drilled the well around 40 km south of the Heimdal Field and 8 km southwest part of the small 25/7-2 discovery in the northern side of the Norwegian North Sea.
The well has found three separate Jurassic sandstones series bearing hydrocarbons with low reservoir quality. The topmost oil interval has included a sand series of 6-8 m broad that is located immediately under the Draupne shale. Additionally, the hydrocarbons existing below 285 m wide Upper Jurassic series were sampled. A wide interval of 150 m was production tested from this sequence. There was a flow of oil and gas to the surface during the test, but a sustainable steady flow was not attained. The company has identified hydrocarbons in a 20-30 m wide Upper or Middle Jurassic sequence.
Wide acquisition of data has been done and will create the base for additional appraisal of the area’s prospectivity.
The CEO and President of Lundin Petroleum, has stated that the Earb South well yielded a huge hydrocarbon column and this discovery has considerable in-place volumes. The well was examined and there was a flow of oil and gas to the surface but the reservoir is taut and it needs additional work to find out if there can be commercialization of the discovery.
This exploration well was the first in PL505. The company drilled the well to 4,534 m deep below the sea surface and ended in Jurassic sediments. Transocean Winner drill rig was employed to drill the well 25/10-11.
Lundin Petroleum holds 30% in the license. Marathon Oil Norge holds 35% and is the operator of the well. Maersk Oil Norway has 15% and VNG Norway has 20% in the well.
Source: http://www.lundin-petroleum.com/