Testing & Inspection: News for Oil & Gas and Hydrocarbon Industries  Membership Services »
Gulf Oil and Gas grow your business
Home News Events Projects Tenders Unconventionals Community | My Account
Products and vendors Services and providers Jobs

Statoil Announces Investigation into Visund Gas Leak

Source: www.gulfoilandgas.com 4/10/2011, Location: Europe

Share |

Statoil has launched an investigation into the gas leak that occurred at Visund on April 9. The leak occurred in a riser carrying oil and gas from well A21 to the platform.

On Friday April 8, Statoil decided to shut down production from the Visund field to carry out inspections on the risers, after damage to the inner layer of steel that protects the pressure barrier was found in some of the risers at Njord. Some of the steel pipe risers on Visund have design and operational similarities to those at Njord. The risers carry oil and gas from the production wells to the Visund platform.

On Saturday April 9, gas was observed on the sea surface near the Visund platform, and the emergency preparedness organisation was immediately mobilised. The gas emanated from a leak in a riser that had been closed for inspection. The leak was stopped, and the situation normalised. Production was at this time already shut down, and the volumes that leaked out were limited.


Investigating the incident
There were no injuries to personnel in connection with the incident, and before the extent of the leak was determined, personnel without emergency duties were evacuated to nearby installations. Once the source was identified and the leak halted, evacuated personnel were returned to the platform. However, production remains shut down awaiting further inspection of the risers.

“Statoil is investigating the incident, and will also support the Petroleum Safety Authority (PSA) in their investigation of this incident. Safety is our first priority, and through our investigation we wish to secure further knowledge to avoid this type of incident in the future,” says Executive Vice President for Development and Production Norway, Oystein Michelsen.


Similar risers
Snorre B has the same technical solution for risers as those on Visund and Njord, but these have already been inspected, and three of the pipes have been replaced. There are also equivalent risers in operation on five other installations where Statoil is operator: Veslefrikk, Snorre A, Norne and ?sgard A og B. The risers on these installations have other technical solutions and other operational conditions than Visund and Njord. This reduces the probability of a change in pressure leading to damage to the risers.

There are no observations that would indicate that any other risers are damaged at this time. Statoil has carried out a risk assessment of all such risers on other platforms, and we do not consider there to be any danger from continued production from these installations. However, the company will re-evaluate these risk assessments in the light of yesterday’s incident.

Risers on all of Statoil’s installations are subject to constant monitoring and routine inspections in accordance with the applicable inspection programmes.

Testing & Inspection News in Norway >>

Heerema Wins Contract for Maersk Oil's HPHT Culzean Field
United Kingdom >>  9/2/2015 - Heerema Fabrication Group (HFG) has been awarded the Engineering, Procurement & Construction contract of the Culzean jackets for both the central proc...
SMOE Secures EPC Contract Worth over $1 Billion at Culzean Field
United Kingdom >>  9/1/2015 - Sembcorp Marine subsidiary SMOE Pte Ltd has secured an Engineering, Procurement and Construction (EPC) contract worth over USD One billion (including ...

Amec Foster Wheeler Wins Two EPC and FEED Contracts
United Kingdom >>  8/28/2015 - Amec Foster Wheeler has been awarded an Integrated Services Contract (ISC) and a Front End Engineering Design (FEED) contract in UK & Vietnam respecti...
Amec Foster Wheeler Wins Integrated Services Contract by Maersk Oil
United Kingdom >>  8/27/2015 - Amec Foster Wheeler has been awarded a three year Integrated Services Contract (ISC) by Maersk Oil, an international oil and gas company and a fully-o...

Total Sells North Sea Midstream Assets for $905 Million
United Kingdom >>  8/27/2015 - Total has signed an agreement to sell all of its interests in the FUKA and SIRGE gas pipelines and the St. Fergus Gas Terminal to North Sea Midstream ...
The Crude Oil Futures Market Structure
Austria >>  8/23/2015 - Crude oil futures on both sides of the Atlantic fell to multi-month lows, taking ICE Brent below $60/b. ICE Brent shed almost $7 to settle way below $...



Related Categories: General  Hydrostatic Testing  Inspection  Laboratory Services  Non Destructive Testing  Testing 

Related Articles: General  Hydrostatic Testing  Inspection  Laboratory Services  Non Destructive Testing  Testing 


Norway Oil & Gas 1 >>  2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |

More News

Oil & Gas Companies in Norway >>

Related Links

Countries Quick Links

00 AT BE BG CH CY CZ DE DK ES FI FR GR HR HU IE IT NL NO PL RO SE SI TR UK
Gulf Oil and Gas B2B marketplace:   About -  Advertising -  Competitive Intelligence -  Talent Solutions -  Membership Services Follow us on Facebook
Copyright © Universal Solutions All rights reserved. Privacy Policy. - Contact Us  Gulfoilandgas rss feed