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http://www.fortmcmurraytoday.com ... -and-pipeline-spill
( v) \+ o* A9 i$ i4 ~Nexen Energy will lay off about 350 workers from its Long Lake facility, following its release of results of internal investigations into a July 2015 pipeline spill and the January 2016 hydrocracker explosion.
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The CNOOC-owned energy company will only be continuing its steam-assisted gravity drainage (SAGD) operations at Long Lake, after it determined a short-term repair was not possible for the hydrocracker unit, which killed two employees when it exploded on Jan. 15, 2016.
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2 [( }$ {/ M0 A! v( V$ \+ ~The facility's upgrader has been idling since then, and will be moved into winter preservation, with no estimation of when it will be brought back into service.) u# {# I4 W+ n7 M8 c5 b. m9 W
# d" m$ X: k# i6 C) oAn internal investigation found the explosion was a result of work being performed that was "outside of the scope of approved work activities."8 W5 H4 _ {* U8 z" A, V- c
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The two employees killed, both Fort McMurray residents, were 52-year-old Drew Foster and 30-year-old Dave Williams. Foster was killed in the explosion. Williams, who was flown to the University of Alberta Hospital's burn unit hours after the explosion, died a week later.
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In its announcement Nexen said it is addressing safety gaps in part with refresher training on workplace hazard identification, increased site supervision and safety inspections.
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5 [2 T. s' Z( A; nThe decision to move to a SAGD-only operation was described as "entirely economic," and will result in about 350 staff layoffs, most of which will be completed by the end of 2016. ' d6 w- f6 ^) _% c; ^2 F% N
5 ?4 O! B) M2 Y: U QThe results of the investigations were given at a news conference on Tuesday by Nexen CEO Fang Zhi and Senior Vice President of Canadian Operation Ron Bailey./ E% c1 u9 e5 P
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Nexen also said it found the root cause of a July 2015 emulsion spill at Long Lake to be a "thermally-driven upheaval buckling of the pipeline, and the subsequent cooldown during the turnaround."; B8 U/ s( O. \2 t/ q
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This was caused because of pipeline design incompatible with the muskeg ground conditions, and steps that could have been taken to mitigate the potential for buckling were not addressed.
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1 {$ |7 l8 j0 H0 Y8 lThe spill poured up to five million litres of emulsion - a mixture of water, bitumen and sand - into surrounding muskeg. The spill may have been ongoing for up to two weeks when it was discovered in July 2015 by a contractor walking through the area. & {9 G6 {5 ~9 y
* N; Z: g. `4 {In August the Alberta Energy Regulator ordered Nexen to shut down 95 pipelines until the company could prove the pipelines could be operated responsibly. The suspension was lifted in September 2015.
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- with files from Vincent McDermott |
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