Case Study: Ocean Nomad Drilling Rig

Location: Cromarty Firth, Invergordon (UK)

Operator: DIAMOND OFFSHORE

During a scheduled shipyard visit we were contracted to remove all residues and clean all tanks onboard to allow inspection.

Sureclean Scope

Primary scope of work was to provide the necessary manpower and equipment for the removal of all residues and cleaning of all tanks onboard the Rig to allow inspection and remedial repairs to be carried out. Scope of works were extended to include;

  • Removal of all residues and cleaning of all tanks.
  • Cleaning of Chain Lockers.
  • Surveying, Camera Inspection and cleaning of all drains systems including overboard pipe.
  • Surface Preparation and Painting of BOP stack, APV's, Lifeboat Davits, and various new steelwork installed throughout the rig.
  • High Presure Water Jetting of Sounding Tubes.
  • Removal of residues and Ultra High Pressure Water Jetting of the Mud Pits.
  • Surveying, Camera Inspection and cleaning of the HVAC/Duct systems.
  • Surface preparation using Ultra High Pressure Water and painting of column internals.
  • Surface preparation and  painting of steelwork at our painting facility in Alness.

Technical Challenge

Logisitcs associated with resourcing, planning and managing project growth, within a critical path. Manning profile grew from an orignal plan of 15 personnel peaking at 64 personnel. 

Restrictions / Considerations

  • Timeline - Critical Path Project.
  • Project Management, resourcing, planning and scheduling.
  • Conflicting activities.
  • Hazardous Environment - Confined Space Entry Working, access and egress.
  • Waste containment and transfer.

Key Facts

  • Project completed without safety or environmental incident.
  • Project completed on time.
  • Involved 64 Sureclean personnel, dayshift and nightshift working.
  • Project scope of work extended.
  • Commendations received from the client.

Additional Information

Sureclean’s ethos of having and providing trained ‘multi-disciplined’ personnel provided a timely and cost effective solution allowing the client to optimise work completed.The intergrated approach of working together adopted by all contractors involved in the project contributed to it's overall success.

Similar Projects

During 2008 Sureclean completed similar works for Diamond Offshore on the drilling rigs whilst berthed inshore at Invergordon (UK);

  • Ocean Guardian
  • Ocean Princess