ทุกที่มีมาตรฐานสูง ลงทุนสูงมาก ใช้เทคโนโลยี่สูงมาก แต่ก้อทรุดพัง ทำสภาวะแวดล้อม-หายนะ
Deadliest Accidents
Incident | Fatalities | |
---|---|---|
1. Piper Alpha Occidental's Piper Alpha platform was destroyed by explosion and fire in 1988. 167 workers were killed in the blaze. | 167 | |
2. Alexander L. Kielland In 1980, the accommodation rig Alexander L. Kielland capsized during a storm after a leg support brace failed. | 123 | |
3. Seacrest Drillship The Seacrest drillship capsized in 1989 during Typhoon Gay, with the loss of 91 crew. | 91 | |
4. Ocean Ranger A ballast control malfunction caused the Ocean Ranger to capsize during a ferocious storm in the North Atlantic in 1982, with the loss of all hands. | 84 | |
5. Glomar Java Sea Drillship Another storm fatality, the Glomar Java Sea capsized and sank during Typhoon Lex in 1983 with the loss of all on board. | 81 | |
6. Bohai 2 In 1979, the jack-up Bohai 2 capsized and sank in a storm while on tow off the coast of China. | 72 | |
7. Brent Field Chinook Helicopter A Chinook helicopter shuttle between the Brent Field and Sumburgh crashed into the North Sea in 1986 with only two survivors. | 45 | |
8. Enchova Central During a blowout on the Enchova Central off Brazil, 42 workers lost their lives attempting to evacuate the platform. | 42 | |
9- C. P. Baker Drilling Barge Built in 1962 using an uncommon catamaran design, the C. P. Baker drilling barge burned and sank after a shallow gas blowout. | 22 | |
9- Mumbai (Bombay) High North A support vessel collided with Mumbai High North in 2005, rupturing a riser and causing a major fire that destroyed the platform. | 22 | |
9- Usumacinta Storm winds caused the Usumacinta jack-up to strike the adjacent Kab-101 platform, resulting in a fatal evacuation and blowout in 2007. | 22 |
Source:
Various sources
Collapse
Incident | Fatalities | |
---|---|---|
Alexander L. Kielland In 1980, the semi-submersible accommodation rig Alexander L. Kielland capsized during a storm after a leg support brace failed. | 123 | |
Al Mariyah Whilst skidding the rig cantilever, the jack-up Al Mariyah collapsed and lost its derrick onto the platform below. | 4 | |
Maersk Victory A punch-through caused extensive damage to the Maersk Victory while working in Australian waters in 1996. | 0 | |
Ocean Prince The UK-built semi-sub Ocean Prince, finder of the first UK offshore oil, broke up off England's east coast during a storm in 1967. | 0 | |
Parker 14-J Drilling Barge Failure of the jacking mechanism caused the Parker rig to collapse in 2003. | 0 | |
Ranger I After being jacked up on location in 1979, the rig Ranger I collapsed due to fatigue in the stern leg. | 8 | |
Sea Gem One of the first drilling rigs in the North Sea, the Sea Gem collapsed in 1965 as a result of metal fatigue. | 13 | |
Transocean 3 A rare self-elevating semi-submersible, the Transocean III capsized and sank East of Orkney after a jackable leg broke away in 1974. | 0 |
Alexander L. Kielland was a Norwegian semi-submersible drilling rig that capsized whilst working in the Ekofisk oil field in March 1980 killing 123 people.
The capsize was the worst disaster in Norwegian waters since World War II. The rig, located approximately 320 km east from Dundee, Scotland, was owned by the Stavanger Drilling Company of Norway and was on hire to the U.S. company Phillips Petroleum at the time of the disaster. The rig was named after the Norwegian writerAlexander Lange Kielland.
The rig was built as a mobile drilling unit at a French shipyard, and delivered to Stavanger Drilling in July 1976. The floating drill rig was not however used for drilling purposes but served as a semi-submersible 'flotel' providing living quarters for offshore workers. By 1978 additional accommodation blocks had been added to the platform, so that up to 386 persons could be accommodated.[1]
In 1980 the platform was working in the Norwegian north sea providing offshore accommodation for the production platform Edda 2/7C.
Contents[hide] |
Alexander L. Kielland
Rig: | Alexander L. Kielland Semi-Sub |
Date: | 27 March 1980 |
Location: | Ekofisk Field, Norwegian Continental Shelf |
Operator: | Phillips Petroleum |
Fatalities: | 123 |
Summary
The Alexander L. Kielland was a Pentagon-type semi-submersible and, in 1980, was located in the Ekofisk Field for Phillips Petroleum. It was supporting the Edda rig, acting as a so-called flotel (a floating hotel) for workers who travelled between the two rigs via a bridge, although this bridge had been raised prior to the accident due to gale force conditions. Around 1830 hours on 27 March 1980, one of the main horizontal braces supporting one of the five legs failed. The failure of the brace was attributed to a fracture which had developed around a hole in which a hydrophone, used to aid the positioning of the rig, had been installed. After the failure of the first brace, the remaining five braces attached to the leg failed in quick succession causing the leg to break off. The rig almost immediately listed to one side at an angle of 35 degrees, partially submerging the main deck and accommodation block.
The initial collapse occurred within a minute but the Kielland remained floating for another 14 minutes or so after the initial failure. During this time, a number of attempts were made to launch lifeboats, with only two of the seven lifeboats launched successfully. Three of the lifeboats were smashed against the rig's legs as result of the storm winds and waves whilst being lowered, leading to a number of casualties. After around 15 minutes, as water flowed into another two of the rig's legs, the last anchor wire parted and the rig rolled over completely with only the undersides of its legs visible above the surface.
There were 212 men aboard: 123 perished and only 89 survived the accident. On top of the high winds and waves, the men also faced near freezing waters with little protection. While some men did manage to swim to the Edda Platform to save themselves, others were swept away by 10m waves and strong currents as they attempted to reach rescue boats or other rigs.
Attempts were made to right the rig in 1980 but were abandoned due to the rig's dangerous state. In 1983, the rig was successfully righted and investigated before being towed to Nedstrand Fjord, where the remains of the rig were deliberately sunk. While the official investigation concluded that the leg bracing broke as a result of fatigue in a weld, later evidence was put forward indicating that the rig had been deliberately sabotaged with explosives. No new official inquiry was undertaken but the sabotage theory can be read in detail at the F.A.L.K. website.
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