Statoil Makes Oil & Gas Discovery at Askja

Statoil Petroleum AS, operator of production licence 272, in the Norwegian part of the North Sea is in the process of completing the drilling of wildcat wells 30/11-9 S and 30/11-9 A (Askja prospect).

 The well was drilled about 13 kilometres southeast of the 30/11-8 S discovery and about 35 km south of the Oseberg Sør installation in the North Sea.

The primary exploration target for well 30/11-9 S was to prove petroleum in Upper to Middle Jurassic reservoir rocks (lower part of the Heather and Tarbert formation). The secondary exploration target was to prove petroleum in reservoir rocks in the Middle Jurassic (Ness and Etive formation).

The well encountered gas in a net 90-metre column in the lower part of the Heather formation and in the upper to middle part of the Tarbert formation, both with reservoir properties as expected. The Ness formation was aquiferous and the Etive formation, which lies under the Ness formation, was therefore not explored.

The primary exploration target for well 30/11-9 A was to prove petroleum in Middle Jurassic reservoir rocks (the Tarbert formation). The secondary exploration target was to prove petroleum in Middle Jurassic reservoir rocks (the Ness and Etive formation).

Askja statoil discovery

The well encountered oil in a net 40-metre column in the lower part of the Heather formation and the upper part of the Tarbert formation, both with reservoir properties as expected. The Ness formation was aquiferous and the Etive formation, which lies under the Ness formation, was therefore not explored.

Preliminary estimates indicate that the size of the discoveries is between 3 and 7 million Sm3 recoverable oil equivalents.

The wells were not formation-tested, but extensive data acquisition was carried out.

The licensees in production licence 272 will assess the discoveries together with other discoveries in the production licence.

Wells 30/11-9 S and 30/11-9 A were drilled to respective vertical depths of 3637 and 3646 metres below the sea surface, and both were terminated in the Ness formation in the Middle Jurassic.

The wells are the second and third exploration wells in production licence 272, which was awarded in the 2001 North Sea Awards (NST2001) in 2002.

Water depth is 110 metres. The wells will be permanently plugged and abandoned.

Wells 30/11-9 S and 30/11-9 A were drilled by the Ocean Vanguard drilling rig, which will now proceed to production licence 628 in the North Sea to drill wildcat well 25/9-4, where Statoil Petroleum AS is the operator.

Source: NPD, January 02, 2014

Share this article

Follow Offshore Energy Today

Events>

<< Jan 2020 >>
MTWTFSS
30 31 1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31 1 2

Africa Oil Week 2020

For over 25 years Africa Oil Week has been the meeting place for Africa’s most senior E&P stakeholders.

read more >

CERAWeek 2020

 Each year, CERA clients gathered for a few days in Houston…

read more >

Offshore Technology Conference (OTC) 2020

The Offshore Technology Conference (OTC) showcases leading-edge technology for offshore drilling, exploration…

read more >

2020 EXPLORATION AND PRODUCTION STANDARDS CONFERENCE ON OILFIELD EQUIPMENT AND MATERIALS

The development of consensus standards is one of API’s oldest and most successful programs.

read more >

Jobs>

Looking to fill a job opening?

By advertising your job here, on the homepage of OffshoreEnergyToday.com, you'll reach countless professionals in the sector. For more information, click below...

apply

Looking to fill a job opening?

By advertising your job here, on the homepage of OffshoreEnergyToday.com, you'll reach countless professionals in the sector. For more information, click below...

apply