Northern Gas Pipeline – Mt Isa Compressor

Project Overview:

The Mt Isa Compressor Station serves as the Queensland terminus of the Northern Gas Pipeline (NGP), a 623 km pipeline connecting gas networks in the Northern Territory and Queensland. Altrad (formerly Valmec) was contracted for the civil, structural, mechanical, piping (SMP), and electrical and instrumentation (E&I) scopes, delivering an integrated solution that minimised interface challenges and ensured seamless project delivery.

Scope:

Altrad’s scope of work included:

  • Procurement and installation of concrete foundations for compressors, pipe racks, and associated equipment.
  • SMP works, including onsite fabrication, non-destructive testing (NDT), hydrotesting of pipework, and compressor unit landing and grouting.
  • Procurement and installation of electrical materials, including cabling, cable support structures, and consumables.
  • Support for the client’s commissioning team, including pre-commissioning and assistance through to the introduction of gas.

Outcomes:

  • Successfully completed the compressor station construction, aligning with Jemena’s project schedule and operational requirements.
  • Delivered significant cost savings through a unified mobilisation approach for civil, SMP, and E&I scopes.
  • Remote Location: Addressed logistical challenges through careful planning and robust resource management for the central Queensland site.
  • Hot Weather: Implemented the Altrad Hot Weather Policy to ensure worker safety and maintain productivity during extreme summer temperatures.
  • Multi-Disciplinary Scope: Leveraged Altrad’s integrated capabilities to eliminate interface challenges between civil, SMP, and E&I works, providing cost and efficiency benefits to the client.
  • Enhanced local engagement by collaborating with Traditional Owner groups and implementing a Local Content Plan to maximize Indigenous participation.
  • Reinforced Altrad’s reputation for excellence in delivering large-scale, remote gas infrastructure projects.
Client

Jemena

Location

Mt Isa, Queensland, Australia

Duration

10 months Completion: July 2018

Industry
Utilities

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