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http://www.fortmcmurraytoday.com ... -and-pipeline-spill
: Q- ^# Q' u0 k* E2 |5 cNexen 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.. M. q% v& j6 i$ q( n/ ^+ t
( J: ^4 p+ n- |6 ]4 w; |" U; 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.
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3 O; U: q3 z# @; b6 \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! e8 }* ^4 |
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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."2 V! i* J- B: X2 E: K+ U! {
* m4 }7 q/ [+ P, W( o1 S. p1 G- B$ |5 ^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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/ \/ \4 P; ]) X$ J; d. ~% O9 Y3 T; 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. 2 J. H. N8 ?" |: ], `5 n
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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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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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" @/ t$ y# c0 `$ A- ^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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: x! z5 c( @8 l7 }6 s" x8 d; ~- ~, dThe 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. Q, d2 M9 E/ Y9 c+ z
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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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- with files from Vincent McDermott |
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发表于 2016-7-12 18:01
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