Offshore Decommissioning: Technologies, Digitalization, and Sustainable Asset Retirement
04 May 2027
Room 310
Technical Session
Offshore decommissioning is evolving from a conventional end-of-life activity into a highly engineered, technology-driven phase of the offshore asset lifecycle. Increasingly complex subsea infrastructure, aging wells and facilities, regulatory requirements, environmental considerations, and cost pressures are driving the need for safer, more efficient, and more sustainable approaches to abandonment and removal. This technical session presents recent advances in offshore decommissioning, well abandonment, subsea intervention, digital planning, and asset repurposing. The selected papers highlight innovative technologies for permanent plug and abandonment, sustained-annulus-pressure remediation, diverless conductor removal, subsea retrieval operations, riser pull-out, and decontamination of radioactive production equipment. The session also examines the broader evolution of decommissioning through digital twins, lifecycle planning, cost and financial reconciliation, and alternative strategies for repurposing aging offshore infrastructure. Together, these contributions demonstrate how technology and improved lifecycle planning can reduce offshore exposure, improve safety, control costs, and create new opportunities for sustainable management of aging offshore assets.
Chairperson(s)
Proposal JSON
[{"proposaltitle":"An Innovative Approach To Decommissioning Of Platform Conductors By Diverless Drilling, Pinning And Cutting","proposalnumber":"37528","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"I. Adamson, S. Cassie, Subsea 7"},{"proposaltitle":"Development And Deepwater Deployment Of A Modular Motor-manipulated Fishing Platform For Retrieval Of Control Lines, Completion Debris, And Lost Downhole Assemblies","proposalnumber":"37331","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"M. Powell, Welltec A\/S; G. Johnsen, Welltec Norway; M. Hornnes, Autentik AS"},{"proposaltitle":"Perforate Wash And Cement Through Tubing As Disruptive Solution For Permanent Plug And Abandonment","proposalnumber":"37350","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"W. Gama, R. Moreira, L. Pacheco, C.A. Simao, I.E. Silva, C.P. Carvalho, J.S. Rocha, S.A. Barcelos, Petrobras"},{"proposaltitle":"Advancing Tetherless Plug & Abandonment For Greater Safety And Cost Savings","proposalnumber":"37533","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"G. Stephen, Oil States; B. Saucier, Deep Mar Consulting Services; B. Hilt, Oil States"},{"proposaltitle":"Enhancing Offshore Decommissioning Process Through Digital Twins: Planning, Execution, And Lifecycle Monitoring Of Jackets And Subsea Pipelines","proposalnumber":"37249","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"S. Bhowmik, McDermott International"},{"proposaltitle":"Closed Loop Chemical Decontamination Of Norm- Scaled Production Equipment Without Generation Of Secondary Radioactive Liquid Waste","proposalnumber":"37514","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"R. Hajduk, Radion Core Group"},{"proposaltitle":"Load-level Physical-financial Reconciliation In Marine And Offshore Decommissioning: Evidence From Four Completed Brazilian Operations","proposalnumber":"37552","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"G.G. Magalhães, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio); F. Baiao, Pontifical Catholic University of Rio de Janeiro (PUC-Rio); P. Macaira, Puc rio"},{"proposaltitle":"Nansen Spar Decommissioning A Pioneering Full-field Abandonment And Reefing Project In The Gulf Of America","proposalnumber":"37539","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"M. Jegannathan, Occidental Petroleum Corp."},{"proposaltitle":"Beyond Decommissioning - Unlocking Multi-purpose Synergies Through The Repurposing Of Aging Offshore Platforms","proposalnumber":"37561","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"I. Muritala, ABS"},{"proposaltitle":"Numerical Investigation Of Decommissioning Offshore Subsea Skirted Mudmat Foundations","proposalnumber":"37479","SessionRoleStatus":"Primary","ProposalTime":" ","AuthorBlock":"X. Long, Fugro USA Marine, Inc.; A.M. Radwan, Fugro; C. Aubeny, Texas A&M University; K. Tjok, Fugro USA Marine, Inc."}]