Engineered Decommissioning

PSM Upstream solutions

Engineered Decommissioning

The PSM onshore decommissioning team has seen exceptional growth in the last couple of years and was made into its own division in 2022. Our decommissioning team now consists of specialised Technicians, Project Managers and Engineers.

Materials earmarked for decommissioning can be sent to our workshops in Hazelmere, Bibra Lake or Karratha or our mobile team can come to site and materials can be worked on in-situ. With our close relationship with major oil and gas operators, demolition companies and auction houses PSM can facilitate end-to-end decommissioning scopes.

While the whole industry is finding new ways to work and find solutions PSM has and always will apply the 4R’s of sustainability

REPURPOSE + REUSE + RECYCLE = REDUCE

  • Repurpose (e.g. subsea electrical connectors utilised in CSIRO research project in Tasmania)
  • Reuse (Subsea Tree to Wellhead Connector re-used by carefully dismantling and re-selling to another operator)
  • Recycle (identification and segregation of different alloys, metals and plastics to ensure non-compliant materials do not go to land fill, e.g plastics turned into diesel fuel from an umbilical decommissioned by PSM)
  • Reduce (reduce material going to landfill by maximising the re-use and recycling of decommissioned materials)

Minimise Landfill

To date PSM has been able provide decommissioning services with less than a 2% (by mass) waste ratio to landfill. We are able to do this by providing the client with early advice on value potential for their equipment and working with global auction companies and OEM’s. With our established valuation method (HAZVAL) we can quickly estimate hazards and value and provide a figure on what economic return the client can expect.

Together with the client we will provide a recommendation on the best way forward in regard to on-selling, repurposing or recycling. The early identification of hazards such as trapped energy, pressure and contamination will aid in the planning to safely reduce waste and increase recovery value.

At PSM HSE is of primary concern and all projects are approached with an engineering perspective with all works controlled by approved procedures, plans and qualified personnel.

Services on Offer

De-pressurising

De-energising

De-contamination and flushing support

Refurb and re-testing

Re-certification

Guidance of value potential

Packaging and preservation

Cataloguing

PSM Decommissioning Workflow

$

Inspect materials, fill in HAZVAL template & make recommendations

$

Documentation GAP analysis

$

Quote

$

Develop procedure(s)

$

Organise third parties if required

$

Combine information in the PSM system

$

Perform work

$

Sort material in re-purpose, re-use and recycle

$

Follow approved waste disposal pathways

Client receives profit from recycled and sold materials

DECOMMISSIONING EXPERIENCE

PSM has extensive experience and capability in the decommissioning of equipment. These are some of the works we have completed:

Woodside

  • Spring-loaded fail-safe actuators/ valves
  • Bladder accumulators
  • Heat exchangers
  • Pressure Safety Valves (PSV’s)
  • Multilayered Flowlines
  • Integration with disposals process, Perth / Karratha
  • Subsea and onshore plant valves
  • Subsea valve and onshore plant valve actuators
  • Heat Exchanger flushing and disposal of hydrocarbons.
  • Compressor trapped pressure release and flushing.
  • Accumulators (onshore and subsea)

McMahon

  • Over 20 XT Decommissioning (valve actuators, accumulators, SCMs, hydraulic tubing).
  • RTM Decommissioning Support (hydraulic actuation, de-pressurisation and de-contamination).
  • Valves and actuators off FPSO’s

BHP

  • Accumulators
  • Subsea valves
  • Umbilical flushing and dismantling
  • Heat Exchanger flushing and disposal of hydrocarbons.

Chevron

  • EDP, LRP and XT Decommissioning (valve actuators, accumulators, SCMs, hydraulic tubing).
  • On-shore valve de-pressurisation and de-contamination

HSE

Working with assets that are bound for decommissioning often includes high-risk work scopes such as working with trapped pressure, in assets that have deteriorated from corrosion, aging and marine growth. This unpredictable performance creates its own challenges and calls for bespoke engineered techniques to safely decommission. PSM develop specific procedures, including engineering calculations, for each type of equipment that we work on and perform risk assessments and job safety analysis as appropriate. This will vary depending on if we work on equipment in-situ or in one of our workshops. All Technicians are aware of their right to Stop Work and the importance of following the provided processes.