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Golden Beach Development Offshore FEED

Golden Beach Development Offshore FEED

Atteris delivered a fast-tracked, lean Front-End Engineering and Design phase for the Golden Beach Development, in the Gippsland Basin. Atteris’ work delivered a cost effective and robust design for early EPC contractor engagement.
The Golden Beach Development will operate as a production and gas storage facility, with gas re-injected into the reservoir during storage after an initial drawdown phase. The development consists of a subsea development including two wells and a subsea manifold, with room for future expansion. The raw gas pipeline transports production fluids ashore to a compressor station. The location presents unique challenges with onerous metocean conditions and onshore environmental considerations.
Work Performed by Atteris

Atteris performed the following activities during FEED:

  • Detailed parametric assessment of development concepts, considering installation/operational risk and CAPEX / OPEX estimates various single, dual-pipeline and bundle concepts.
  • Shore crossing location selection, site layout and design – evaluating HDD, tunnelling and cut and cover options.
  • Pipeline design in accordance with DNVGL-ST-F101 including:
    • Pipeline routing optimisation
    • Wall thickness selection
    • Pipeline stabilisation design
    • Cathodic Protection design
    • End expansion and buckling susceptibility.
  • PLEM definition and field layout definition.
  • Tie-in spool design, considering critical operational and installation loading envelopes.
  • Flow assurance to define liquid holdup, sand holdup, erosion, hydrate formation and temperature profiles.
  • Detailed procurement, operation and IMMR specification, datasheets and documentation development and review.

As an integrated team, Atteris’ broad expertise was leveraged to deliver these wide‑ranging scopes concurrently, efficiently sharing data and knowledge between the internal business streams. This allowed Atteris to deliver an accelerated, cost effective and fit for purpose design that was focussed on ensuring the Client was able identify and mitigate key risks and achieve key contractor engagement schedules.

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