Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul...
Transcript of Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul...
![Page 1: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/1.jpg)
MCE Deepwater Development 2016
PAU, FRANCE • 5-7 APRIL 2016
Decommissioning
Subsea Abrasive Water Jet Cutting
Case Study
Paul Yeats
Oceaneering
![Page 2: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/2.jpg)
MCE Deepwater Development 2016
Project Description
• Multi Operators approached Oceaneering to review well schematics of 8 subsea
wells in UKCS and propose a solution for the safe and efficient recovery.
• Upon review of information for each well, each recovery would face its own
challenge (access / Non H4 profile / Cement Patio’s / unknowns – lack of cement in
annulus etc).
• Oceaneering proposed a methodology for each well including contingency options
for each.
• Project took place October/November 2015.
• Customer also indicated that pricing was to be submitted as a lump sum campaign.
![Page 3: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/3.jpg)
MCE Deepwater Development 2016
Primary Equipment: Internal Multi-string Cutting Tool (IMCT)
![Page 4: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/4.jpg)
MCE Deepwater Development 2016
Challenging Wells
![Page 5: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/5.jpg)
MCE Deepwater Development 2016
Cement Patio Break Up Tools
![Page 6: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/6.jpg)
MCE Deepwater Development 2016
Challenges: Lack of Cement in Annulus
![Page 7: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/7.jpg)
MCE Deepwater Development 2016
Challenges: Recovery/Non H4
![Page 8: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/8.jpg)
MCE Deepwater Development 2016
Dredging for Access
![Page 9: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/9.jpg)
MCE Deepwater Development 2016
Pile Dredging
![Page 10: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/10.jpg)
MCE Deepwater Development 2016
External Wellhead Cutting
![Page 11: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/11.jpg)
MCE Deepwater Development 2016
Wellhead Recovery
![Page 12: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/12.jpg)
MCE Deepwater Development 2016
Wellhead Protection Structure
![Page 13: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/13.jpg)
MCE Deepwater Development 2016
Recovered Structure
![Page 14: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/14.jpg)
MCE Deepwater Development 2016
• Through the extensive time spent up-front prior to mobilisation, we were able to
ensure the correct equipment including all contingency equipment was onboard
to cover all eventualities.
• With the correct equipment onboard, we were able to complete these 8
challenging wells within budget, on time (1 day on WOW) and without any
requirement to sail to port for further equipment mobilisations.
• Successful completion of this project using this pricing strategy shows a step
change in how these work scopes can be completed and favour all parties.
• Currently bidding further work for client based on success of operation.
Conclusion
![Page 15: Decommissioning Subsea Abrasive Water Jet Cutting Case Studymcedd.com/wp-content/uploads/03_Paul Yeats - Oceaneering... · 2017-05-18 · Subsea Abrasive Water Jet Cutting Case Study](https://reader036.fdocuments.us/reader036/viewer/2022063004/5f7adfe0659c4c26307cb8fc/html5/thumbnails/15.jpg)
MCE Deepwater Development 2016
Day Rate v Lump Sum:
• High amount of wells to be Decommissioned in the UKCS – next 5 years account for
large % of decommissioning activity.
• Decommissioning is here and now.
• Risk v Reward.
• Is it feasible to bid the final (or other) stages of decommissioning on a lump sum basis?
• Do you fully know & understand your risk?
• Known knowns, known unknowns, unknown unknowns.
• Weather Risk – W.O.W
Driving Efficiencies in Decommissioning