Oil & Gas UK Decommissioning Insight 2014

DECOMMISSIONING INSIGHT 2014

Pipeline Making Safe and Decommissioning in the Central and Northern North Sea

Fewer pipelines are scheduled to be decommissioned over the next ten years in the CNS and NNS areas than forecast in the 2013 report, due to the deferral of some projects to outside the survey timeframe.

‘Making safe’ of pipelines in this area typically occurs one year before pipelines are decommissioned, but it can also be carried out several years ahead. The majority of ‘making safe’ activity is forecast post-2017 with an average of 185 kilometres (km) of pipeline per year over the period 2017 to 2023. Figure 19: Forecast of Making Safe and Pipeline Decommissioning Activity in the Central and Northern North Sea from 2014 to 2023

100 150 200 250 300 350 400 450 500

Increased Uncertainty in Forecasts

Total Length (km)

0 50

2014 2015 2016 2017 2018 2019 2020 2021 2022 2023

Pipelines Making Safe

Umbilicals

Source: Oil & Gas UK

Other Pipelines (Width <16")

Trunklines (Width >16")

Number 2014 to 2023

Length (km) 2014 to 2023

Total Expenditure 2014 to 2023

Making safe

-

1,300

£125 million £490 million

Pipeline decommissioning

807

Umbilicals Trunklines

73 18

180 259 368

Other pipelines

215

Peak year of ‘making safe’ activity 2023 - 448 Peak years of pipeline decommissioning activity 2019 45 170 2020 47 250 2021 153 260

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