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December
Summary
The Halifax Explosion was a maritime disaster in Halifax, Nova Scotia, Canada, which happened on the morning of 6 December 1917. The Norwegian vessel SS Imo collided with SS Mont-Blanc,
Summary
The Halifax Explosion was a maritime disaster in Halifax, Nova Scotia, Canada, which happened on the morning of 6 December 1917. The Norwegian vessel SS Imo collided with SS Mont-Blanc, a French cargo ship laden with high explosives, in the Narrows, a strait connecting the upper Halifax Harbour to Bedford Basin, causing a large explosion on the French freighter, devastating the Richmond district of Halifax.
Approximately 2,000 people were killed by the blast, debris, fires or collapsed buildings, and an estimated 9,000 others were injured. The blast was the largest man-made explosion at the time, releasing the equivalent energy of roughly 2.9 kilotons of TNT (12,000 GJ).
Image Credit: Library of Congress
January
Summary
A fire broke out at the oil sands refinery in Upgrader 2, an area of the plant that converts bitumen into crude oil products. Approximately 250 people were evacuated from
Summary
A fire broke out at the oil sands refinery in Upgrader 2, an area of the plant that converts bitumen into crude oil products. Approximately 250 people were evacuated from the plant, but no injuries were reported. The fire burned for nine hours before being extinguished. Witnesses reported two explosions minutes apart which sent a fireball six stories high into the air. The plant also suffered ice damage from water used to fight the fire as temperatures in the area fell below -35 C. On February 3, 2005, the company announced that a ruptured cycle line was the most likely cause of the fire. Oil production was reduced from 225,000 bbl-per-day to about 110,000 bbl-per-day for about nine months.
[ Property Damage $120 Million. Estimated Current Value $168 Million ]
Image credit: Suncor
Summary
This incident occurred at an oil sands facility, specifically with minor explosions occurring in the froth treatment plant. Damage appeared to be mainly limited to electrical cables in the solvent
Summary
This incident occurred at an oil sands facility, specifically with minor explosions occurring in the froth treatment plant. Damage appeared to be mainly limited to electrical cables in the solvent recovery area. The cause of the fire appears to have been a hydrocarbon leak in piping. The plant’s emergency response team was assisted by the local fire brigade and the fire was extinguished in two hours. Only one minor injury was reported. The incident occurred eight days after the new facility began operating.
[ Property Damage $120 Million. Estimated Current Value $189 Million ]
Image credit: Jason Woodhead
Summary
An explosion occurred on this oil sands upgrader site north of Fort McMurray, Alberta. Five workers were injured in the blast, including one who received third-degree burns. A subsequent fire
Summary
An explosion occurred on this oil sands upgrader site north of Fort McMurray, Alberta. Five workers were injured in the blast, including one who received third-degree burns. A subsequent fire occurred at the top of one of the site’s four coke drums and burned for nearly four hours. As a result, two of the coke drums were disabled. Workers returned to normal shifts the following morning. The majority of the damage was sustained above the cutting deck and derrick infrastructure of the coke drum. At the time of the incident, the plant was operating on bypass conditions due to process upsets. An internal investigation team determined that the fire resulted from the opening of the top unheading valve on an active low-pressure coke drum. This allowed hot hydrocarbons to be released within the coker cutting deck building and was followed by ignition, leading to the explosion and fire. Exceptionally cold weather following the incident hampered efforts to gain access to the coker unit’s cutting deck, due to the deluge protection in this area. Firefighting in freezing conditions caused additional damage.
[ Property Damage $385 Million. Estimated Current Value $425 Million ]
Image credit: CBC
March
Summary
The Rimbey pipeline system in Alberta, Canada transports liquid propane, butane and condensate products in an 8-inch pipeline. On the day of the incident the operating pumps were pumping against
Summary
The Rimbey pipeline system in Alberta, Canada transports liquid propane, butane and condensate products in an 8-inch pipeline. On the day of the incident the operating pumps were pumping against a closed valve. The line failed at a pressure of approximately 8000 kPa, which is below the 8372 kPa maximum operating pressure for the pipeline.
Liquid propane erupted violently and formed a pond of boiling propane. The propane quickly formed a ground level flammable gas cloud, which rolled across topsoil until it reached a road where it was ignited by a passing truck. Liquid propane entered a nearby storm sewer catchment basin. The propane spread into adjacent sewer lines. Explosive mixtures were detected over a wide area within the sewer system.
No injuries were recorded, however the incident instigated a large-scale evacuation of 19,000 people while efforts were made to eliminate the explosive danger.
A combination of water flushing, ventilation and nitrogen gas blanketing successfully eliminated the danger about 23 hours after the original fracture. Maintenance crews plugged the pipeline either side of the fracture to stop the flow of leaking gas
KEY ISSUES:
• EMERGENCY RESPONSE / SPILL CONTROL
Image Credit: Provincial Archives Of Alberta
Summary
A fire occurred on one of the two hydrotreaters on an oil sands upgrader facility. The fire was reported to be as a result of the failure of a pipe,
Summary
A fire occurred on one of the two hydrotreaters on an oil sands upgrader facility. The fire was reported to be as a result of the failure of a pipe, resulting in a releaser of naphtha. One worker was seriously injured as a result of the fire, which was extinguished after two days.
[ Property Damage $220 Million. Estimated Current Value $220 Million ]
Image credit: CBC