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http://www.fortmcmurraytoday.com ... -and-pipeline-spill
, {# p1 t1 }1 ENexen 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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' J# z# ] j9 w! N4 WThe 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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0 ^+ i q# P5 c/ [* B; x/ EThe 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.& s9 T ]; `/ l7 f" M
2 u; w {+ H% e+ Y$ J7 ] YAn internal investigation found the explosion was a result of work being performed that was "outside of the scope of approved work activities."3 A# f1 R9 s g) V+ s+ o/ j
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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. # v8 |. c' c) K# T# \( }. a9 v4 a
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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. - f0 c! O; k( t
. u: b9 {- m: q6 l5 w- s2 `1 zThe 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. 7 x1 L7 |6 C w: v1 v
0 H- G" _1 A- x5 JThe 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.- Y2 {/ F, m5 h6 x* K$ {0 F
; O. O" H$ ?+ t* }$ }" R: xNexen 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."9 v# F4 V+ e$ \- z5 K
* J$ r) ?* r: OThis 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. / n$ n5 b8 K, H) D1 ~
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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. * B1 r5 p' x9 @: X
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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. . J- c8 |, m$ B( Q1 u- _4 r3 O. L
( e2 q. J% O+ f% ]( b- with files from Vincent McDermott |
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发表于 2016-7-12 18:01
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