Overview of Global Decommissioning

Size: px

Start display at page:

Download "Overview of Global Decommissioning"

Maximilian King
6 years ago
Views:

Overview of Global Decommissioning Presented by Dr. Brian Twomey twomeybg@gmail.

1 Overview of Global Decommissioning Presented by Dr. Brian Twomey Mobile: CCOP & EPPM Workshop on End of Concession & Decommissioning Guidelines Bangkok, 13 th June 2012

2 SLVAGE & DECOMMISSIONING Worldwide Location of Offshore Installations

3 Where are the Offshore Platforms Caspian Sea Mediterranean Lake Maracaibo 100+ Brazil 50+

4 Offshore Installations in USA

5 Location of US Offshore Facilities California Federal Waters (23) California State Waters (4 platforms & 5 Islands) Cook Inlet 16 GOM 3450

6 Location of GOM Facilities Post Maconao renamed: The Bureau of Ocean Energy Management, Regulation and Enforcement CCOP/EPPM Workshop on End (BOEMRE) of Concession & Decommissioning June 2012

8 GOM Summary

9 Types of Offshore Facilities In GOM Ref:

10 SALVAGE & DECOMMISSIONING Offshore Installations in SE Asia

11 Location of Offshore Installations in Asia (2010)

12 Types of Offshore Installations in Asia (2010)

13 Asia Summary (2010)

15 SALVAGE & DECOMMISSIONING Offshore Installations in Europe

16 Northern European Offshore Installations CCOP/EPPM Workshop on End of Concession & Decommissioning Data from June

17 Offshore Installations in Denmark (Circa 30 Installations)

18 Location of Danish Platforms

19 SALAGE & DECOMMISSIONING Offshore Installations in Netherlands (Circa 84 Installations in 2006)

20 Location of Dutch Platforms

21 Dutch Platform Removals?? Source:

22 Offshore Installations in Norway (Circa 93 Installations in 2010)

gravity base structure at 656,000 tonnes.

23 Size of Troll A Offshore Platform From Guinness Book of Records: The Troll Offshore Gas Platform, located off Norway in the North Sea, is the heaviest man made mobile object ever made, with a dry weight of the gravity base structure at 656,000 tonnes. Standing 472m tall, it was made from 245,000m3 of concrete, (the equivalent to 215,000 foundations for ordinary homes) and 100,000 tonnes of steel (approximately 15 Eiffel towers).

24 ORMEN LANGE (Norway): Europe s Deepest Subsea Development at 1,000 m (3,300 ft)

25 Norwegian Decommissioning Market (2010)

26 SALVAGE & DECOMMISSIONING Offshore Installations in UKCS

27 UK OIL & GAS FALILITIES TO BE DECOMMISSIONED IN FUTURE YEARS Source; DECC

28 Summary of UKCS (2010)

29 ALVAGE & DECOMMISSIONING UKCS Approximate Market Timing & Value

30 UKCS DECOMMISSIONING Decommissioning When Expected Timeframes

31 UKCS DECOMMISSIONING

33 UKCS Decommissioning Market(2010)

34 SALVAGE & DECOMMISSIONING Examples of Decommissioning in Southern North Sea

35 TYPICAL SOUTHERN NORTH SEA GAS PLATFORMS

36 Alternative Method of Topside Removal Piece Small

37 SALVAGE & DECOMMISSIONING Decommissioning in Northern North Sea

38 Ref: Topsides 20,160 tonnes Jacket 18,000 tonnes Water depth 144 metres Operational Crew: ~120

39 Installation of A Northern North Sea Platform 22 Main Lifts

40 Installation INSTALLATION of A Northern OF North NNS Sea PLATFORM Platform

41 DECOMMISSIONING OF NNS PLATFORM Giant Crane Vessel Decommissioning NW Hutton (Only 4 in the world)

42 Installation of Large Jackets Using Buoyancy

43 NW HUTTON JACKET DECOMMISSIONING Jacket + Piles ~18,000mt Allowed to leave Footings ~ 8,500mt approximately

44 DECOMMISSIONING NWH JACKET Footings left Hundreds of complex subsea cuts using cranes, ROV s and 4 types of cutting tools

45 DECOMMISSIONING NWH JACKET Installed Barge Launched with Buoyancy Decommissioned in Pieces (Major subsea cutting needed)

46 Subsea Jacket Cutting During Decommissioning

47 Subsea Cutting Methods Used To NWH Jacket Abrasive Water Jet (AWJ) Diamond Wire Cutting System (DWCS) Gated Hydraulic Shears

48 ROV Deployed Subsea Diverless Cutting Tools

49 Crane Deployed Diverless Subsea Cutting Tools CCOP/EPPM Workshop on End of Concession & Decommissioning Source: Eamon Sheehan, June BP, Aberdeen, th November 2010

50 Thank you for your attention Any Questions?

Subsea UK Neil Gordon Chief Executive Officer Championing the UK Subsea Sector Across the World

Subsea UK Neil Gordon Chief Executive Officer Championing the UK Subsea Sector Across the World 1 Overview About Subsea UK Facts and figures UK industry evolution Centre of Excellence Technology and Innovation