Decommissioning Insight 2020

Appendix 4 —UKCS Decommissioning Activity Overview, 2020-29

Figure 23: Decommissioning Activity in the UKCS 2020–29

Northern North Sea & West of Shetland

Central North Sea

Southern North Sea and Irish Sea

Total UKCS

Platform Wells

328 204

283 303

371

Subsea Wells

47 31

Number of Wells to be Decommissioned

1,616

Subsea E&A Wells

20

29

Total

552

615

449

Number of Topsides for Removal

15 12

19 13

59

93 85

Number of Substructures for Removal

60

Topsides Weight to be Removed (Tonnes)

263,317 177,622 155,770

185,342

209,571 119,043 20,576 4,805 4,840

658,230 372,439 200,190

Substructure Weight to be Removed (Tonnes)

75,774

FPSO Weight for Removal (Tonnes)

23,844 36,243 14,336

Subsea Structures to be Removed (Tonnes)

29,265

70,313 22,076

Number of Mattresses for Removal

2,900

Length of Pipelines, Cables and Umbilicals to be Decommissioned (km)

1,065

4,317

2,408

7,790

DECOMMISSIONING INSIGHT 2020

33