Loss of Well Barriers in Connection With Wireline Operation – Investigation Report

The incident occurred on Draugen in connection with a wireline operation in a well. The well was completed and started producing in 1994. Since January 2010, the well has been shut-in. Planning for the wireline operation started in the 4th quarter of 2009. During a planned test, it was discovered that the hydraulically operated main valve in the Xmas tree was not tight, which would entail repair or replacement. The wireline operation was therefore postponed until the main valve had been fixed. At the end of November 2010, the main valve had been repaired, and the implementation of the planned wireline operation could start again.

2013.05.27 - Loss of Well Barriers in Connection With Wireline Operation Figure 1

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Containership Collision With Bridge – Investigation Report

On 20.00 on 2 June 2010, the Finnish dry cargo vessel NAJADEN and the car carrier PALMELA informed to the VMC-ZWN Traffic Control Centre in southwestern Holland controlling the Caland Bridge that they needed the bridge to be opened so that they could sail from the Brittanniehaven towards the Caland Canal. The PALMELA reported first, and after her the NAJADEN. The NAJADEN told that she wanted to use the same bridge opening as the PALMELA.

2013.05.20 - Containership Collision With Bridge Figure 1

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Stevedore Injury During Cargo Operations – Investigation Report

On 20 February 2006, a team of Stevedores was engaged in the discharge of steel products from the starboard side of No. 2 hatch of a Cargo Ship which was starboard side to at Jellicoe wharf in Auckland. The team consisted of a Foreman Supervisor and three Stevedores within the ships hold, a Hatchman on deck and a driver operating the ship’s crane.

2013.05.13 - Stevedore Injury During Cargo Operations Figure 1

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Occupational Injury Onboard Offshore Platform – Investigation Report

During activities on the drill floor, a person suffered crushing injuries to the chest and abdomen while working on an access platform on the roof of the driller’s cabin. The incident occurred on 28 February 2009 on a mobile facility. The work being done was installation of a fastening device on the grating on the driller’s cabin at the same time as an LRA (lower racking arm) was used to prepare the core drill string for the next well operation. The injury occurred as the person was crushed between the railing on the access platform and the back of the LRA being operated.

2013.05.06 - Occupational Injury Onboard Offshore Platform Figure 1

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Alexander L. Kielland Platform Capsize Accident – Investigation Report

The semi-submersible “flotel” (floating hotel) Alexander L. Kielland capsized on 27 March 1980 while bridge connected to the steel jacket Ekofisk Edda platform. The flotel lost one of its five legs in severe gale force winds, but not an extreme storm. The accident started with one of the bracings failing due to fatigue, thereby causing a succession of failures of all bracings attached to this leg. It was discovered during the investigation that the weld of an instrument connection on the bracing had contained cracks, which had probably been in existence since the rig was built. The cracks had developed over time, and the remaining steel was less than 50%.

2013.04.29 - Alexander L. Kielland Capsize Accident in North Sea Figure 1

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Palletised Reefer Cargo Gear Failure – Investigation Report

At approximately 1140 hours New Zealand Daylight Time (NZDT) on 15 October 2004, vehicles were being discharged from a reefer vessel. Two gangs from the stevedoring company were operating on board at the time. At about 1140 hours, a 0.5 tonne lifting frame was lifting an approximate 1.0 vehicle from No. 3 hold. The stevedore operating the winch observed the starboard runner wire was starting to unravel. The winch driver immediately lowered the port runner allowing the vehicle to drop onto the starboard deck, as the wire on the yardarm of the union purchase parted.

2013.04.22 - Palletised Reefer Cargo Gear Failure Figure 1

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Offshore Well Blowout – Investigation Report

A blowout occurred on a Well during the period from May 9 to May 18, 2001, after the 13⅜–inch surface casing was cemented. The mobile offshore drilling unit (MODU) was cantilevered over “Platform A.” The plan called for the well to be directionally drilled with a drift angle of approximately 55 degrees. On May 8, 2001, after the 13⅜-inch surface casing was cemented, a slight flow was noted coming from the annulus between the surface casing and the 18⅝-inch conductor casing. The diverter was closed and pressure started increasing on the annulus. Valves and piping were rigged up to the 18⅝-inch A section to permit monitoring of pressure and transport of fluids to and from the annulus. Throughout the night of May 8 and through 0730 hrs on May 10, unsuccessful attempts were made to bleed off the annular pressure.

2013.04.15 - Offshore Well Blowout Figure 1

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Fatal Bulk Carrier and Cargo Ship Collision – Investigation Report

At about 2251 local time on 17 March 2007, a Hong Kong general cargo ship collided with a Chinese registered bulk carrier. At the time of the accident, the weather conditions were fine with northerly wind at force 4. The sea was moderate and the visibility was about 7 nautical miles (n.m.). The Bulk Carrier sustained damages to the bow and the Cargo Ship sank shortly after the collision. Twelve crew members of the Cargo Ship were rescued. Eight crew members were found missing and nine crew members were drowned.

2013.04.08 - Fatal Bulk Carrier and Cargo Ship Collision Figure 1

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Fatal Fall from Offshore Platform – Investigation Report

On the morning of May 19, 2000, a contract employee was using a portable of Accident winch (come-along) to remove a section of removable guardrail for the purpose of accommodating the installation of the mounting beams of a temporary crane. One end of the come-along was attached to the section of guardrail to be removed, while the other end was attached to a section of fixed guardrail located approximately 5 feet above the guardrail to be removed. As tension was applied to the come-along, the upper guardrail failed at its base welds and detached from the deck. As a result of the detachment, the employee fell approximately 60 feet to the Plus 10 deck and sustained fatal injuries.

2013.04.01 - Fatal Fall from Offshore Platform Figure 1

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Loss of Well Control Due to Leak from Seal Ring – Investigation Report

At approximately 1740 hours on February 14, 2008, a seal ring on the bottom flange below the master valve began to leak and dry gas was released into the atmosphere. Since the SCSSV was not operable and the leak was below the master valve,  it was not possible to prevent the escape of natural gas. The South Pelto No. 10 platform was evacuated shortly after the loss of well control without injury. The Well was secured on February 17, 2008.

2013.03.25 - Loss of Well Control Due to Leak from Seal Ring Figure 1

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