Extended service life – pressure vessels

Aftermarket Oil & Gas

Covers maintenance, modification, and upgrading of existing pressure vessels and process equipment in offshore and industrial environments.

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Extended service life – pressure vessels

MMO Service Solutions – Tank Upgrade and Lifetime Extension

MMO services (Maintenance, Modification & Operations) encompass the maintenance, modification, and upgrading of existing pressure vessels and process equipment in offshore and industrial environments. The services aim to ensure continued safe operation, improved performance, and extended technical lifespan of installations already in operation. The work is carried out as planned measures or as part of larger lifetime extension projects, and is adapted to the customer's technical, operational, and time constraints.

Scope of services

  • Inspection and technical condition assessment of existing tanks
  • Engineering and verification of further use or upgrading
  • Repair of damage, corrosion and wear
  • Modification of tank geometry, nozzles and structural details
  • Replacement, upgrade, and installation of internal components (internals)
  • Adaptation for improved separation, capacity or function
  • Pressure testing, functional testing and technical verification

Preparation and risk reduction

To reduce risk and offshore work, pre-verification can be established in controlled environments, including:

  • Surveying and modelling of existing thoughts
  • Full-scale trial fitting of new internals
  • Verification of fit, tolerances and assembly method
  • Testing of tools, cutting methods and work sequences

This provides high predictability and contributes to efficient execution within limited offshore windows.

Lifetime Extension

For lifetime extension projects, comprehensive solutions are delivered for continued use beyond the original design life. The work includes technical assessments, necessary modifications, documentation, and underpinning for recertification and continued operation.

Implementation model

The services can be delivered as:

  • Standalone MMO quests
  • Part of planned maintenance and modification campaigns
  • Integrated MMO or EPCI deliveries with one consolidated interface

The delivery can cover the entire value chain from survey and engineering to fabrication, installation, testing and final documentation.

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