Subsea Commissioning


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Due to the fast track nature of Projects, GATE provides a project tailored Subsea Systems Completion process to enable traceability of mechanical completion through commissioning in order to optimize handover of the facilities to the Operator. This is achieved by working with the Operator early in Project Development and understanding the requirements.

GATE Subsea IHUC activities include the pigging, testing, hook-up (static / dynamic) and commissioning of flowline / riser and controls systems from topsides to shore. As such, IHUC activities have multiple complex engineering, scheduling, ownership and scope interfaces between Well Engineering, Topsides and Subsea Facilities Design and the Operator.


Subsea Commissioning

Due to the fast track nature of Projects, GATE provides a project tailored Subsea Systems Completion process to enable traceability of mechanical completion through commissioning in order to optimize handover of the facilities to the Operator. This is achieved by working with the Operator early in Project Development and understanding the requirements.

GATE Subsea IHUC activities include the pigging, testing, hook-up (static / dynamic) and commissioning of flowline / riser and controls systems from topsides to shore. As such, IHUC activities have multiple complex engineering, scheduling, ownership and scope interfaces between Well Engineering, Topsides and Subsea Facilities Design and the Operator.

IHUC services include:

Planning & Commissioning Management 

  • Commissioning Planning, Management and Execution 

  • Full Service Execution or Client Representative Oversight 

  • Subsea Project Systemization 

  • Subsea Systems Completion Monitoring / Management

  • Quality Assurance / Quality Control 

  • Extensive Offshore Oil and Gas Commissioning Experience 

  • Health, Safety, Security and Environment (HSSE) Planning and Oversight 

  • Integrity Management 

  • Regulatory Testing (e.g. Subsurface Safety Device testing) 

  • ROV Intervention 

  • Vendor and Sub-Contractor Selection and Management 

Umbilical Commissioning 

  • Chemical / Preservation Compatibility Studies 

  • Umbilical Axial Mixing Modelling 

  • Umbilical Displacement Planning and Execution 

Flowline / Pipeline Commissioning 

  • Preservation (e.g. Corrosion Analysis and Prevention) 

  • System Dewatering / Drying 

  • Flow Assurance Modelling 

  • Initial Flow-back, Buy-back and First Export Analysis and Planning 


Resources

Consult A Specialist



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Process Facilities Commissioning

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Topsides Commissioning