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 >>

Commodity Markets Investment
  Austria >>  12/18/2014 - Investment flows into commodities
The total open interest volume (OIV) in major US commodity markets increased slightly to 8.4 million co...

Shell Agrees Sale of Some Downstream Businesses in Norway
Norway >>  12/18/2014 - Shell has signed an agreement with ST1 for the sale of its retail, commercial fuels and supply and distribution logistics businesses in Norway. In add...

OPEC Reference Basket
  Austria >>  12/15/2014 - In November, the OPEC Reference Basket (ORB) ended 11% lower for the fifth month in a row, the longest period of monthly deterioration in almost 6 yea...
Oil Market Highlights - December 14
  Austria >>  12/11/2014 - Crude Oil Price Movements
The OPEC Reference Basket finished down $9.49 at $75.57/b in November, a mid increasing supplies and sluggish...


Review of 2014
  Austria >>  12/11/2014 - With 2014 coming to an end, a review of oil market developments since the initial forecasts can provide an indication of the likely way ahead in 2015....
Crude Oil Price Movements - December 14
  Austria >>  12/11/2014 - The OPEC Reference Basket (ORB) finished down 11% for November, the fifth straight month of declines. This is its longest losing streak since the 2008...



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 |

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