Rig Moving

The movement and relocation of Mobile Offshore Drilling Units (MODUs) is a regular feature of Offshore Marine Operations, and ensuring these are undertaken in a safe, efficient and economically sound manner is a key service offering from LOC. The related services LOC offers clients are:

Marine Warranty Survey (MWS)

  • Review and approval of intended rig locations and rig move procedures – both semi-subs and jack-ups
  • Engineering review of technical documentation e.g. mooring analysis, leg penetration analysis (LPA), SSA, sea-fastening, leg bending and cribbing for dry transports
  • MWS site attendance for rig moves – in accordance with JRC guidelines
  • MWS suitability inspections and approval of supporting vessels
  • Approval of 3rd party or in-house tow masters

Marine and Engineering Consultancy Services

  • Production and/or review of marine procedures in line with latest industry guidance
  • Planning and/or supervision of rig move operations as tow master or company representative
  • All aspects of towage planning including procedure development, tow resistance calculations, stability and motion response analysis and tow vessel surveys
  • Site-specific assessments to SNAME or ISO19905
  • Production of technical analyses and studies, including mooring analysis, jack-up rig footing penetration/punch through analysis, dry transport engineering, environmental or metocean studies and rig feasibility studies
  • Offshore vessel / tug suitability and condition surveys
  • Risk assessments
  • Gap analysis e.g. ERRV requirements when moving from UK to Norway.

In addition to the rig location & move services LOC has the expertise to support a wide range of the other services during the whole life cycle of rigs and MODUs including:

  • Condition and valuation surveys
  • Reactivation surveys
  • Damage surveys
  • Incident investigations
  • Marine and engineering services for conversions and upgrades of rigs and MOPUs
  • Demolition voyage surveys and assessments
  • Full range of DP services including FMEA production, annual trials, production of ASOG’s etc.

Key Contact View All

Group Director of Rigs

Dubai

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Master Mariner

Houston

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