Incident Disclosure 2015

Manual disconnect from well due to weather

March 4, 2015

On March 3, 2015, Statoil reported conducting a manual disconnect of the West Hercules drilling rig from the P-78 well and an uncontrolled discharge of synthetic based mud (SBM), or drilling mud, to the sea. The decision to disconnect was made by Statoil due to weather conditions.

Manual disconnection from the well includes the activation of the blowout preventer shear rams to cut the drill string. The part of the drill string above the blowout preventer contains a residual volume of approximately 14 cubic metres (14,000 litres) of SBM. The exact volume discharged to sea will be confirmed once the full drill string is retrieved to the rig when weather conditions permit this operation.

There were no injuries or well control issues associated with this incident and emergency response was not activated. The West Hercules has been moved to the safe handling area and operations have been suspended while waiting on weather.

Media Contacts:

Statoil Canada Ltd:
Alex Collins
Acting Lead, Communications
T. (709) 738-8644
C. (709) 769-8967

Sean Kelly M.A., APR, FCPRS
Manager of Public Relations
t. (709) 778-1418
c. (709) 689-0713

Incident Disclosures 2015

Nov 30, 2015High Potential Near Miss
Oct 12, 2015Grease Fire in Galley
Oct 8, 2015Helicopter Experiences Fuel Bypass Indicators
Oct 2, 2015Flame Detection
Oct 2, 2015Unauthorized Discharge
Sep 2, 2015Major Hydrocarbon Gas Release
Sep 1, 2015Helicopter Engine #2 Fire Indication
Aug 20, 2015Major Injury
Jul 29, 2015Major Hydrocarbon Gas Release
Jul 2, 2015Helicopter experiences low oil pressure indication
May 16, 2015Person Overboard from West Hercules
May 5, 2015Helicopter Engine #2 Power Loss
Mar 4, 2015Manual disconnect from well due to weather
Feb 19, 2015Helicopter on the Helideck of the Hibernia GBS