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Power Generation

Mimas Compression Facility

Client
Senex
Duration
Feb 2025 - Aug 2025
Location
Euthulla, Queensland, Australia
Value
$3.3 million
mimas_hero

A critical facility enabling the safe transfer of raw gas into the domestic network, delivered in a live production environment without disrupting flow.

Located near Euthulla, west of Roma, the Mimas Compression Facility supports Senex Energy’s expansion in the Surat Basin – compressing and dehydrating raw gas for efficient transfer into the domestic gas network.

PHE Group was engaged to deliver the electrical and instrumentation (E&I) works required to bring this vital infrastructure online, supporting energy reliability in Queensland’s industrial and residential sectors.

Project Scope

  • Delivered the full E&I scope for the Mimas Compression Facility – a critical infrastructure asset supporting the tie-in to the Roma-Brisbane Pipeline.
  • Installed, terminated, and tested all HV and LV cabling across three Electric Drive Reciprocating Compressor packages, TEG dehydration units, oily water treatment skids, and flare systems.
  • Constructed and energised the high-voltage system, including auxiliary transformer testing, HV switchboard installation and testing, MCC installation, HV motor testing, and cable terminating, testing, and commissioning.
  • Installed all field instrumentation, control cabling, and power distribution systems across pre-assembled units (PAUs), pre-assembled racks (PARs), slug catcher and disposal skids, and sales gas export piping skids.
  • Completed hazardous area installations and compliance inspections for over 150 items of EX-rated equipment in accordance with AS/NZS 60079.
  • Performed QA testing, HA verification, HV equipment testing (including transformer, switchboard, motor, and cable testing), and full system walkdowns in preparation for staged commissioning.

Outcomes and Benefits

  • Reinforced energy infrastructure resilience – helping extend the life and output of the pipeline network while supporting more efficient gas compression.
  • Upskilled the workforce through training in hazardous area compliance, instrumentation tubing, and HV terminations.
  • Supported inclusive participation with five apprentices engaged on the project, including two females.
  • Honoured Indigenous heritage and protocols, with Mandandanji cultural heritage preservation during works.
  • A locally-based Site Safety Advisor engaged for the project’s duration, ensuring WHS compliance while strengthening local workforce participation.
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