 鲜花( 10)  鸡蛋( 0)
|
http://www.fortmcmurraytoday.com ... -and-pipeline-spill. ?2 O% Y# p7 n, l b
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. \' {7 [4 b3 \) a0 c
$ } Z0 m( \ q( t/ W# [
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, 2016.1 j. z7 I' \4 I, k' v# m$ `
& ~$ j- H, e, b& ~6 ~! @0 ~5 m8 E8 ZThe 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.
- i1 i6 V4 }+ O+ N0 J% m5 a' K C! }/ l- W" E, a* V/ T. M
An internal investigation found the explosion was a result of work being performed that was "outside of the scope of approved work activities."" H3 c0 U' t% j: p1 H
R" I: H% Z: Z" T hThe 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 h, {& B0 \, Z/ v6 M. l
& C; q6 r5 ~- w0 c9 ?$ k; i" X5 R
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.
- h1 L; ]8 @. S' K# \1 b, w- p* A% R
! X% j* o: f# L- U/ d! |- l1 l/ _The 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.
# I$ H I, ~+ x
/ U v) r; H3 L, V8 O9 Z8 UThe 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.
8 f4 C! E7 _: l5 J% {/ F- x
7 q/ W# y* D0 l9 E' G; nNexen 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."
j2 }6 b$ M3 L7 W1 a9 o" r
( d" w0 c, h0 f& a' h9 GThis 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.
, o- u1 R" e! [6 @- B! m) j8 J/ s; P; i7 m
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.
" D0 f/ _6 H6 B8 ]* t- Y, H3 i5 F* M6 L K' ]' ^- L
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.
! M6 x: ~5 J, z7 n2 l) g$ ?$ f5 u6 U6 ^5 S
- with files from Vincent McDermott |
|
狗仔卡
发表于 2016-7-12 18:01
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
