OGUK Decom Insight Report 2021

5%

7%

OUTOF SERVICE

5%

5%

Figure 5 – Work Breakdown Structure

Central North Sea Northern North Sea Southern North Sea West of Shetland Irish Sea

16%

43%

7%

43% Central North Sea Northern North Sea Southern North Sea West of Shetland Irish Sea

Central North Sea Northern North Sea Southern North Sea West of Shetland Irish Sea

43%

16%

29%

OUTOF SERVICE

Source:OGA&OGUK

29%

Source:OGA&OGUK

Source:OGA&OGUK

1 Project Management

2 Post-CoP Running Costs

3 Well Decommissioning

4 Facilities & Pipelines Permanent Isolation & Cleaning

5 Topsides Preparation

6 Topsides Removal

7 Substructure removal

8 Topsides and Sub-structure Onshore Disposal

9 Subsea Infrastructure

10 Site Remediation

11 Post- Decommissioning Monitoring

Proportion of overall expenditure over the next decade (£million)

7% 9% 50% 4% 3% 9% 4% 3% 9% 1% <1% TOTAL

Northern North Sea &

£5,895.98

West of Shetland £436.87

£657.01

£2,858.12

£258.57

£157.77

£548.04

£214.07

£130.38

£582.81

£38.18

£14.17

£471.17

£724.75

£3,805.38

£126.36

£233.85

£461.24

£249.62

£215.26

£825.57

£42.12

£28.62 £7,183.95

Central North Sea

Southern North Sea & East Irish Sea £206.65 £187.41

£1,578.05

£50.72

£118.31

£466.51

£275.05

£113.77

£348.20

£113.44

£28.67 £3,486.78

TOTAL £1,114.69 £1,569.17

£8,241.55

£660.55

£509.92 £1,475.79 £738.73

£459.41

£1,531.69

£193.74

£71.46 £16,566.72

DECOMMISSIONING INSIGHT 2021

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