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http://www.fortmcmurraytoday.com ... -and-pipeline-spill
# x" h7 I6 G% v8 z! dNexen 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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! ^8 B' M. S. F2 qThe 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.: _# K; k' j& {7 c2 v( \1 w, z
$ i1 a6 d2 F& g2 S& [An internal investigation found the explosion was a result of work being performed that was "outside of the scope of approved work activities."
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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. 0 Z9 T% P p8 w3 {
6 {% }8 r7 U3 d! v& E# d# S/ F* cIn its announcement Nexen said it is addressing safety gaps in part with refresher training on workplace hazard identification, increased site supervision and safety inspections. 7 g4 m) s! j: a! Z J8 {
: M( {( q# a) ?" B) u. XThe 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.
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! t, O! Q ?3 N% @* R) E2 BThe 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.
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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."
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6 i- W7 x L9 _7 LThis 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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The 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.
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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. X# C! [' b' l2 c! Y$ I/ a$ ]
( S" O, S) Q! i8 z) p- with files from Vincent McDermott |
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