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Operations Support

Field Development Due Diligence Support

Peritus International were requested by the client to assist in a due diligence process associated with the potential acquisition of an operating subsea asset.  Peritus conducted an in-house workshop to help identify those elements of the subsea infrastructure which would have the capacity to affect the value of the facility. Each element identified was entered in a matrix and an assessment of the failure modes and associated risks was made.  This coarse assessment process highlighted those areas which may need further study in a subsequent, more detailed examination. The criteria used were Low, Medium and High. Low risk would indicate no action required, Medium risk entries would require mitigation and High-risk items would be potential ‘deal breakers’.  Further work was indicated to determine the current status of much of the subsea equipment, a diligent and thorough examination of the available data would be required in order to quantify the condition of the subsea infrastructure.

Floating Systems Studies

Rectification of the numerous facilities and vessel related issues on an existing FPSO.  Peritus Floating Systems developed a scope of work and cost estimate for the rectification of issues on the FPSO, inclusive of work execution and engineering management.

Marine Risers Studies

Peritus were contracted to perform re-analysis of the flexible risers and umbilicals, to assess the impact of bilge keel modification to riser responses, and to perform fatigue re-analysis on selected risers.  The FPSO operated offshore Brazil in 1065m water and there are over 20 flexible risers and umbilicals installed on the turret-moored FPSO. Peritus’ scope included:

  • Dynamic strength re-analysis for all the risers and umbilicals
  • Riser interference analysis to assess the potential of riser clashing with adjacent risers and umbilicals
  • Sensitivity studies to identify worst case load cases due to changes in vessel motions and environmental conditions
  • Dynamic fatigue analysis for two selected risers to calculate the accrued damage until 2019 and determine the risers’ remnant life using revised operational conditions and updated metocean data.

Our Services

  • Subsea Pipelines
  • Subsea Cables
  • Floating Systems
  • Flow Assurance
  • Field Development
  • Marine Risers
  • Subsea Systems

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    Peritus provides subsea system engineering including pipelines, risers, structures, cables, control systems and umbilical design, to the offshore energy industry.

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