PON1/6342

Notification details

Status	Completed
First observed date	26 May 2017
First observed time	10:00
Incident type(s)	Chemical release
Organisations involved	Maersk Drilling UK Ltd, Maersk Oil North Sea UK Limited
Installation	Maersk Highlander
Installation type	Mobile
Field	Culzean
Latitude	57° 11' 34.0'' N
Longitude	1° 54' 37.0'' E
Quadrant / block no.	22 / 25

Chemical 1

Chemical product released	CALCIUM CHLORIDE (all grades)
Total quantity of chemical released	0.1 kg

Chemical 2

Chemical product released	DF1
Total quantity of chemical released	0.8 kg

Chemical 3

Chemical product released	ECOTROL RD
Total quantity of chemical released	0.01 kg

Chemical 4

Chemical product released	LIME
Total quantity of chemical released	0.01 kg

Chemical 5

Chemical product released	M-I WATE (All Grades)
Total quantity of chemical released	1.6 kg

Chemical 6

Chemical product released	SAFE-CARB (ALL GRADES)
Total quantity of chemical released	0.1 kg

Chemical 7

Chemical product released	SUREMUL EH
Total quantity of chemical released	0.04 kg

Chemical 8

Chemical product released	TRUVIS
Total quantity of chemical released	0.03 kg

Chemical 9

Chemical product released	ULTIDRILL FL
Total quantity of chemical released	0.01 kg

Chemical 10

Chemical product released	VERSACLEAN CBE
Total quantity of chemical released	0.05 kg

Chemical 11

Chemical product released	VERSAGEL HT
Total quantity of chemical released	0.01 kg

Formal investigation

Formal investigation ever opened	Yes

Close off details

Release ever ongoing	No

Source details

Source	BOP (Topsides) - Mud / Cement