PON1/1924

Notification details

Status	Completed
First observed date	31 May 2013
First observed time	10:30
Incident type(s)	Chemical release
Organisations involved	Shell U.K. Exploration & Production Limited (NNS)
Installation	Brent B Platform
Installation type	Fixed
Field	BRENT
Latitude	61° 3' 21.0'' N
Longitude	1° 42' 47.0'' E
Quadrant / block no.	211 / 29

Chemical 1

Chemical product released	Caustic Soda
Total quantity of chemical released	0.68 kg

Chemical 2

Chemical product released	DUO-VIS
Total quantity of chemical released	4.764 kg

Chemical 3

Chemical product released	EMI-2224
Total quantity of chemical released	8.517 kg

Chemical 4

Chemical product released	M-I BAR (All Grades)
Total quantity of chemical released	147.9 kg

Chemical 5

Chemical product released	Proxel XL2
Total quantity of chemical released	0.308 kg

Formal investigation

Formal investigation ever opened	Yes

Close off details

Release ever ongoing	No

Source details

Source	Swarf blockage when milling resulted in tank overfill then spill to deck with a small proportion to sea