Firefighters Protect Canada's Oil Sands Battling Intense Flames
EDMONTON/CALGARY, Alberta, May 24 (Reuters) - Fighting massive forest fires is dangerous and taxing enough, but those sent into Canada's oil sands are not only wrestling with one of the worst wildfires in the country's history. They are doing it surrounded by the volatile, explosive chemicals and compounds critical to pumping oil from some of the world's largest reserves.
Now in its third week, the fire's proximity to the billions of dollars worth of oil equipment, flammable liquids, and extraction sites had people fearful that the flames, which can jump as far as more than a kilometer with gusts of wind, could do catastrophic damage to critical infrastructure.
Dozens of safety workers and industrial firefighters are working at places like Syncrude and Suncor Energy's upgrading facilities north of Fort McMurray surrounded by flames burning to the edges of the oil sands, facing temperatures running as high as 1,100 Celsius (2,000 Fahrenheit).
The heavy bitumen in the oil sands themselves is not flammable, but the facilities and people inside are at risk.
"The most harrowing moments were when we first arrived on scene, dealing with these forest fires growing on you, flames jumping fifty feet in the air," said Aron Harper, 35, a firefighter and emergency medical technician employed by Suncor, who lives in Fort McMurray, Alberta province's main oil hub.
"We were yelling at guys to get out of there because the thing was growing so fast. I've never seen a fire grow that fast in my life."
Firefighters do not measure forest fires by temperature, but by a measure known as "head fire intensity," said Travis Fairweather, Alberta wildfire information officer. It is calculated as the rate of heat energy released over time at the front of the fire, and this fire at times reached five times a level considered extreme, he said.
Almost half of Alberta's 2,351 firefighters have been assigned to Fort McMurray and oil companies have drafted industrial firefighting specialists to protect operations in the area, where about one million barrels of capacity has been shuttered.
These specialists are armed with special foam used to spray exposed equipment and sprinklers that can cover distances of 150 feet (45.7 m).
In Alberta many facilities are built with protection against such fires. This includes firebreaks around them, where vegetation is cleared and replaced with pavement or gravel to stop the progression of fire.
But with this fire, companies including Enbridge and Suncor had to enhance their buffer zones by widening firebreaks. Philip Haggis, a wildfire technologist with the province of Alberta, found himself driving an all-terrain vehicle over blackened earth and through smoke-filled forests, leading a small convoy of bulldozers in containing the fire surrounding them.
Haggis was involved in protecting a Brion Energy Corp facility northwest of Fort McMurray. He was a "dozer boss" for the first week of the fire, supervising a team that removes vegetation - what he calls "fuel" - from the path of the blaze to prevent its spread.
The fire shifts without warning, and at least one team has been caught off-guard in a dead end.
"They got overtaken by fire," Haggis said. "They had to get evacuated and some of their equipment got burned up."
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