Environment Report 2017

Figure 31 shows a more detailed breakdown of release sources for 2016. This shows that the largest contributor by mass, as in previous years, is production systems and related equipment. There are 26 releases from 13 operators that fall into this category, averaging 3.8 tonnes each. In terms of the number of releases, the largest contributing factor was pipework infrastructure, but the resulting releases were on average 0.04 tonnes and contributed 1.2 per cent of the total mass.

1

2

Figure 31: Accidental Oil Release Mass by Source, 2016

0.1 tonnes

3

1.3 tonnes

1.5 tonnes

Other*

1.5 tonnes

9.5 tonnes

4

1.2 tonnes

Hydraulic Systems

0.4 tonnes

Subsea Systems and Related Equipment

5

Pipework Infrastructure

Containment

6

Bulk Transfer Systems

Drainage Systems

7

Production Systems and Related Equipment

99.2 tonnes

8

*Other includes releases from firefighting systems, flare systems, deck washings and unidentified sheen, as well as those releases for which no source is identified

Source: BEIS July 2017, Oil & Gas UK

9

10

11

49