Underwater Services

Inspection

  • Visual inspection e.g. inspection of structural members, pipelines, subsea equipment, cables, risers, sumps, clamps, conductors, and boat landings
  • Non Destructive Test (NDT) e.g. flooded member detection, ACFM, MPI, and UT-Scan
  • Cathodic protection inspection e.g. the corrosion level and status of anode depletion 
  • Location and identification of debris on or in the vicinity of structures, pipelines or any other offshore facilities
  • Examination and measurement of damaged areas on structures, pipelines or any other offshore facilities e.g. coating damage and dent
  • Measurement e.g. free spans, dept of burial, scouring, marine growth and member thickness
  • Marine Growth Inspection
  • Seabed profile survey e.g. using side scan sonar survey and multi-beam survey
  • Class Underwater Inspection In Lieu of Drydocking (UWILD) and mooring inspection

Maintenance and Repair

  • Replacement or installation of underwater structural mambers, subsea equipment, pipelines, risers, cables, valves, caissons, sumps, retrofit clamps such as : 
  • Cut and Remove existing riser and/or pipeline sections including recovery of cut riser and/or pipeline samples
  • Install riser clamps and/or guards for risers
  • Install new riser and/or pipeline spools including tie-ins
  • Install pipeline mechanical connectors and/or clamps
  • Install valves such as SSIV, check valves, etc
  • Install flange protectors, protection frames, concrete mattress, end caps etc. for pipelines
  • Install subsea launcher and/or receiver for pipeline cleaning, gauging, hydro testing, dewatering and inerting
  • Install conductor guides for structural members
  • Install boat fenders
  • Replacement or Installation of anodes for structural member and pipelines
  • Stabilization of structural and pipelines using grouting system or other methods
  • Removal of debris on and in the vacinity of structures, pipelines or other facilities
  • Replacement of mooring buoy, subsea hoses, mooring chain and floating hoses for Mooring Buoy System and FPSO/FSO facilities
  • Marine growth removal