BP plc · LSE:BP.
BP — Corporate Update (February 2003)
16 slides from BP's corporate update, Feb 6, 2003
Slide 1: North West Hutton Decommissioning
North West Hutton Decommissioning 6th February 2003 •The first stakeholder consultation on North West Hutton decommissioning took place in Aberdeen on 6th February 2003. • A full report of the meeting is available on this website.
Slide 2: Agenda
Agenda • Introduction – What we hope to achieve today • Decommissioning overview – North West Hutton status • Comparative assessment studies – Detailed discussion • Stakeholder views • Summary, future plans and wrap-up
Slide 3: The NW Hutton platform
The NW Hutton platform Topsides – 20,000t Current Status Steel Jacket – 17,000t rt • Platform operational, no oil xpo Oil E 20” production • Well decommissioning ongoing • Topsides cleaning commencing 10” • Decommissioning team in-place Ga s Im • Comparative assessment studies por t starting • Stake
Slide 4: Fixed platform decommissioning experience
Fixed platform decommissioning experience Big Ben Southern North Sea Oil Platform NW Hutton Gas Platforms Norway (37,000t) (3,000t) (14,000t) 30m Air Diving 37m -103m Numerous -143m examples. 2 removals in Several in No experience North sea North Sea to date • Several smaller structures have already
Slide 5: In perspective….topsides
In perspective….topsides • Accommodation and support facilities for up to 210 personnel • 2 Drilling rigs with 53 wells drilled from 40 well slots • Power generation • Water injection systems • Capacity for 130,000 barrels per day of oil production • Gas compression • Total topsides weight is 20,000
Slide 6: In perspective….jacket
In perspective….jacket • The jacket weighs 17,000 tonnes and was built at Ardersier in the North of Scotland
Slide 7: In perspective….jacket
In perspective….jacket • The jacket was launched from the barge and fixed to the seabed by a total of 24 steel piles, each of 48 inch diameter
Slide 8: Decommissioning schedule
Decommissioning schedule Activity Well isolation Well conductor removal Plant cleaning phase Preparation for removal Platform removal 2002 2003 2004 2005 2006 2007 • The exact timing of platform removal can not be determined until other decisions have been made. • We do not expect any major removal
Slide 9: Regulation of decommissioning activity…
Regulation of decommissioning activity… • Department of Trade and Industry (DTI) – Regulates the overall process for the UK North Sea. – Takes account of Oslo & Paris commission (OSPAR) policies and guidelines. Topsides removed Jacket removed Removal Derogation • The current regulatory position on t
Slide 10: Decommissioning programme process
Decommissioning programme process Comparative Assessment Studies Stakeholder Consultation Comparative Selected Draft Submit Approval Assessment Findings options Programme To DTI Processes Independent Review Group • BP will use the comparative assessment process to identify the best options for the j
Slide 11: Comparative assessment process
Comparative assessment process Objectives of comparative assessment • To evaluate the alternative options for footings, cuttings pile and pipeline (total removal + partial removal) against a number of factors Economic Social • Outcome: a balanced judgement of the • Other sea users • Cost benefit • E
Slide 12: NW Hutton cuttings pile
NW Hutton cuttings pile Background • Volume 25,000m3 : 45% water; 48% rock; up to 7% oil and trace components • Drill Cuttings Initiative • Environmental Impact ? Options • Natural degradation • Cover with inert materials • Recover • Contained Aquatic Disposal • Bioremediation • This image of the NW
Slide 13: In perspective….jacket
In perspective….jacket • Context for the next slide
Slide 14: Platform jacket….
Platform jacket…. Background • Largest fixed jacket removal to date – 17,000 tons • Water depth of 143 metres • Sub-sea cutting and lifting of large pieces • Technical and marine logistics challenge • No technology to remove in one piece Options • Remove complete jacket • Footings remain in place (D
Slide 15: NW Hutton pipelines
15 NW Hutton pipelines • The oil export line (PL 148) is 20 inch diameter with concrete coating and lies on the sea bed. • This oil line runs from NWH to Cormorant A, a distance of around 10km. •The gas line is 10 inch diameter and was trenched at the time of laying. • This line runs between NWH and
Slide 16: Pipelines
Pipelines Background • Technical challenge of removal • Condition of the concrete coating • Impact on environment and other sea users port O il Ex tA 20” oran o Corm mt 13 k Options 10” • Complete removal Ga s Im 13 por km t • Lines trenched and buried (tre nch ed) • Lines on the seabed