12.11.2012 Views

Ormen Lange 2008.pdf - Olf

Ormen Lange 2008.pdf - Olf

Ormen Lange 2008.pdf - Olf

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Årsrapport for <strong>Ormen</strong> <strong>Lange</strong> boring 2008 A/S Shell Norge<br />

24.12.2008 Kjemikalie:<br />

1128 kg<br />

8.1 Akutte oljeutslipp<br />

sea. The concentration of Aqua-Col D in the mud<br />

is 3.5% in volume. That product is essentially<br />

Glycol. We also have Lubricant additive that has<br />

been added to the mud earlier (also Yellow SFT<br />

color coding) at a concentration of 2% volume.<br />

That WBM is dumpable but that event is<br />

considered as a spill due to the fact that it has<br />

been uncontrolled.<br />

After landing of the 18 3/4" WHRT for BOP test,<br />

it was discovered a drop in the trip tank.<br />

Investigation showed that the wear band in the<br />

upper (primary) packer on the slip joint was<br />

laeking. The air pressure on the packing element<br />

was 10 bar. A total of 800 ltr of waterbased 1,41<br />

sg mud was lost to the sea.<br />

The closing pressure was increased to 22<br />

bar and the leakage stoped. Later the<br />

pressure was reduced to 15 bar with still<br />

not leaking<br />

Tabell 8-2 gir en oversikt over akutt oljeforurensning i rapporteringsåret. Tabellen viser at<br />

det er registrert to utslipp av denne typen i 2008<br />

Tabell 8-2 Oversikt over akutt oljeforurensning i løpet av rapporteringsåret<br />

Type<br />

søl<br />

Andre<br />

oljer<br />

Antall <<br />

0,05 m3<br />

Antall 0,05 -<br />

1 m3<br />

Antall > 1<br />

m3<br />

Totalt<br />

antall<br />

Volum < 0,05<br />

(m3)<br />

Volum 0,05 -<br />

1 (m3)<br />

Volum > 1<br />

(m3)<br />

Totalt volum<br />

(m3)<br />

1 1 0.00100 0.001<br />

Diesel 1 1 0.750 0.750<br />

1 1 0 2 0.00100 0.750 0 0.751<br />

8.2 Akutte kjemikalieutslipp<br />

Tabell 8-3 gir en oversikt over akutt forurensning av borevæsker og kjemikalier i<br />

rapporteringsåret. Tabellen viser at det er registrert åtte utslipp av denne typen i 2008<br />

Tabell 8-3 Oversikt over akutt forurensning av borevæsker og kjemikalier i løpet av 2008<br />

Type søl<br />

Antall <<br />

0,05 m3<br />

Antall 0,05 -<br />

1 m3<br />

Antall > 1<br />

m3<br />

Totalt<br />

antall<br />

Volum < 0,05<br />

(m3)<br />

Volum 0,05 -<br />

1 (m3)<br />

Volum > 1<br />

(m3)<br />

Totalt volum<br />

(m3)<br />

Kjemikalier 2 3 3 8 0.00340 1.46 33.8 35.3<br />

2 3 3 8 0.00340 1.46 33.8 35.3<br />

Figur 8-1 gir en oversikt over historisk utvikling i akutte utslipp av oljer, borevæsker og<br />

kjemikalier og antall av disse:<br />

Side 32

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!