- Structural analyses for removal and transportation 
- Marine operations studies
- Weather downtime assessments
- Reviews of cutting methods
- Pipeline, riser and cable removal studies
- Safety risk reduction (SAFOP's)
- Economic models
- Cost risk analyses
- Decommissioning schedules
- Decommissioning study project management
- Engineering reviews and third party verification
- Approval of marine operations and tows
- Approval of mooring systems for inshore 
  deconstruction