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http://www.fortmcmurraytoday.com ... -and-pipeline-spill. e) f# L# S, i9 t
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.$ y/ M5 \, L# [
) s( {4 T0 z e# U2 v9 b; [/ n5 JThe 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." a+ C$ v! Y) W
& q4 ?, T- q. K# I7 y! @! fThe 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.
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An internal investigation found the explosion was a result of work being performed that was "outside of the scope of approved work activities.", _+ m" |* y( L
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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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# Z! T- T1 E* H4 g0 ?+ o. ]* w, VThe 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. / ]+ V1 ~# U+ u% p7 D
3 h. X% C2 a( `, ?The 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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% f0 y: x: R$ b \! y, ENexen 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."- z$ {/ x" a2 c1 a
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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. 8 V1 O: l) q" Z$ J4 U% O+ r. H
& ~/ B, v- A+ f1 o0 sThe 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.
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; `7 s" v3 v# q. J; i; A# m- with files from Vincent McDermott |
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发表于 2016-7-12 18:01
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