Resource cut seen in Barents Sea discovery

Early assessment of appraisal drilling results indicates a lowering in the resource estimate for the 7225/3-1 natural gas discovery in the Barents Sea offshore Norway, reports the Norwegian Petroleum Directorate.

Total E&P Norge AS, operator of Production License 535, will complete drilling of appraisal well 7225/3-2 soon, according to NPD.

At the time of the discovery, called Norvarg, the preliminary resource estimate was 350 bcf-1.7 tcf of recoverable gas (OGJ Online, Aug. 10, 2011).

The Ocean Rig Leiv Eiriksson semisubmersible drilled the appraisal well to a vertical depth of 2,171 m below the sea surface in 383 m of water about 5 km from the discovery well.

The well bottomed in the Lower Triassic Klappmys and will be plugged.

It encountered natural gas in the Middle Triassic Kobbe formation with varying reservoir quality. The reservoir has better porosity in the appraisal well than in the discovery but similar permeability and productivity.

The appraisal well encountered water in the Middle Jurassic Sto reservoir, a secondary target that yielded gas in the discovery well.

Two formation tests of the Kobbe in the appraisal well flowed at a maximum rate of 175,000 standard cu m/day through a 52/64-in. choke. The operator collected extensive data and samples and installed pressure sensors.

The rig will move to Production License 537 in the Barents Sea to drill OMV Norge AS 7324/7-1 S wildcat.

Related Articles

Tethys reports second successful gas well in Kazakhstan

03/20/2014 Tethys Petroleum Ltd. reported the success of the second shallow gas exploration well of its 2014 program on the Akkulka block in the Caspian regio...

BOEM: Firms bid $850 million in high bids in central gulf lease sale

03/19/2014 The US Bureau of Ocean Energy Management reported that its central Gulf of Mexico Lease Sale 231 received 380 bids from 50 companies on 326 blocks,...

CNOOC makes gas discovery in Qiongdongnan basin

03/19/2014

CNOOC Ltd. has made a natural gas discovery in the east Lingshui Sag of the deepwater area in the South China Sea’s Qiongdongnan basin.

Cairn, FAR to drill exploration wells offshore Senegal

03/19/2014

FAR Ltd., Perth, will participate in the drilling of two deepwater exploration wells offshore Senegal next month.

Careers at TOTAL

Careers at TOTAL - Videos

More than 600 job openings are now online, watch videos and learn more!

 

Click Here to Watch

Other Oil & Gas Industry Jobs

Search More Job Listings >>
Stay Connected