KEY CAPABILITIES
- Construction of Nodal Gas Compression Facilities
- Procurement and materials handling
- Construction scheduling and work packs
- Mechanical and electrical pre-commissioning
- Civil Engineering
PROJECT OVERVIEW
The Nodal Compression Construction Project is located 40km northeast of Roma Township. The project involves the construction of two nodal gas compression facilities. The Roma North booster compression unit will receive low-pressure raw gas from the gathering system, compress it, and deliver it into the GLNG transfer pipeline. A ~750m pipeline will transport gas to a custody transfer metering station for supply to GLNG for processing and export. The project aimed to provide Senex Energy with additional compression to optimise gas sales. The project had a tight 12-week completion date due to client commitments.
GRPS collaborated with parent company GR Engineering Services (GRES), who provided civil design support and assisting with project management throughout the Nodal Compression Construction Project. GRES designed foundations to withstand the load of the nodal compressors, associated equipment, and structures. GRES also seconded a project engineer to GRPS to assist with scheduling, preparing work packs, checking procured materials, addressing technical queries, performing quality checks to ensure compliance with design and Senex Energy Standards, and compiling MDR documents. GRES worked closely with the GRPS construction team and the Senex Energy project team to ensure smooth coordination, address challenges effectively, and keeping the project on schedule while maintaining quality and safety standards.
SCOPE
- Civils, underground services (HDPE and Electrical) and concreting
- Instrument air/plant air package
- Switch room(s) and motor control centre(s)
- Flare packages
- Lube oil supply and waste oil capture
- Pre-Assembled Units (PAUs) – facility
- 2 x electric drive rotary vane compressor and cooler packages
- Shutdown systems, control systems and valves
- Instrumentation
- Gas inlet headers (multiple field fit welds)
- Power generation and distribution package (install only)
- Pressure testing of carbon and HDPE pipe
CHALLENGES
- Achieving the 12-week completion date due to Senex's commitment to airfreighting compressor and cooler packages. Time was a critical KPI with a practical completion deadline of early December 2024.
- Poor weather including rain delays.
- Managing work teams' fatigue in very hot conditions while maintaining execution schedules.
- Adapting to electrical design changes.
SOLUTIONS
- GRPS project team worked collaboratively with Senex’s engineering and operations teams to address any issues and challenges. The team also ensured all safety, productivity and quality metrics were achieved:
- Maintaining the schedule despite rain delays.
- Teams worked across both sites to prepare for the arrival of compressor packages.
- Simultaneous installation of compressor packages at both sites.
- Electrical teams adapted to design changes.
OUTCOME
- Zero harm to personnel, assets, or equipment.
- Contracted practical completion dates were achieved.
- First gas was achieved by mid-December 2024.