OSIGp – Decommissioning Event
Geo-Insights & Field Experiences on Offshore Subsea Decommissioning
25 October, 2022
The Society for Underwater Technology invite you to the:
OSIGp Geo-Insights & Field Experiences on Offshore Subsea Decommissioning
The evening will focus on the following three topics:
- External dredging of jacket platforms in preparation for decommissioning
Ercan Kökden, Senior Geotechnical Engineer / Field Engineer, Allseas
During the recent decommissioning of jacket platform structures in the North Sea, Allseas designed and operated its own pile dredging spread. This presentation presents challenges and outcomes encountered during the development and first commercial use of the pile dredging spread.
- Subsurface Information for Well Abandonment
Sheila Mackay, Principal Geophysicist (Geohazards) | GeoScience, Woodside
Once a well has fulfilled its purpose, be that exploration, appraisal or development it needs to be permanently abandoned. Barriers are designed such that individual pressure compartments in the subsurface are isolated from each other and seabed. The subsurface information required to identify the pressure compartments requires numerous datasets and a multi-disciplined team. This talk discusses the workflow implemented by subsurface specialists at Woodside Energy when planning the permanent abandonment of wells.
- Some Geotechnical Considerations for Decommissioning Offshore Infrastructure
Prof. Susan Gourvenec, Professor of Offshore Geotechnical Engineering, University of Southampton
This presentation will explore some geotechnical considerations for decommissioning offshore infrastructure considering both retrieval and in situ decommissioning. Research outcomes of the changing properties of the seabed over the life of the structure, and the impact on recovery loads or the in-place stability of infrastructure that is decommissioned in situ will be presented.
Date: Tuesday, 25th October 2022
Venue: The Melbourne Hotel (Karingal 2 Rm), 33 Milligan Street, Perth
- 5.30pm: Registration
- 6.00pm – 7.00pm: Presentations
- 7.00pm – 8.00pm: Networking including drinks and finger food
To view the flyer, please click here
For further enquiries, please contact OSIGp directly by emailing: Manuel Herduin (MHd@Allseas.com)
Thank you to our event sponsor: