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Darren Duncan

Asset Integrity Engineer

darrenduncan29@gmail.com +61 411 522 391 linkedin.com/in/darren-duncan

Profile

Asset integrity engineer experienced in Australian gas gathering networks and UK subsea transmission. Combines fitness-for-service assessment, compliance planning and maintenance optimisation with hands-on mechanical experience. Seeking a permanent pipeline or asset integrity role.

Experience

VerbrecAsset Integrity Engineer

Nov 2024 – Present
Brisbane, Australia

Seconded to Santos GLNG, supporting 14,066 flowlines across 10,213 km in Eastern Queensland's Arcadia, Fairview, Roma and Scotia fields.

  • Delivered approximately A$940k annual savings through inspection and survey scope refinement and preventive maintenance optimisation.
  • Developed integrity management plans, compliance audits and inspection programmes to APGA Code of Practice and AS 2885; assessed steel, GRE and HDPE flowline fitness for service, applying API 579 and ASME B31G where appropriate.
  • Replaced over 10,000 km of off-road driving and 500 hours of high-risk vehicle operation through LiDAR survey deployment.
  • Consulting: BMA/BHP SAP CMMS maintenance strategies; Origin Orana and Talinga structural integrity plans and dropped-object reviews; Santos PNG corrosion circuits and CMMS updates.

WoodPipeline Integrity Engineer

Jul 2022 – Oct 2024
Edinburgh, UK

Responsible for integrity management of the Kellas-owned 400 km, 36-inch CATS subsea pipeline, with capacity for approximately 25% of UK domestic gas demand.

  • Automated annual technical integrity assessments in Nexus, reducing preparation from up to eight weeks to one week; developed the system and user training.
  • Assessed H2NE hydrogen suitability of 800 m, 20-inch API 5L X60 legacy pipelines against ASME B31.12. Planned a £400k project with ROV, GPR and hydrogen-charged weld testing scopes; concluded the lines were not suitable for hydrogen service.
  • Delivered technical QA/QC for a six-week CATS valve shutdown and offshore work at North Everest.

Earlier mechanical experience: Weir Oil & Gas apprenticeship, 2010–2013; Stevenson & Kelly technician, 2013–2016.