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The facts
Project overview
Key Achievements
Industry Sectors
The Facts
Gas pipeline & facilities
Remediation works
Brownfields works
Offsite fabrication
Commissioning
Project Overview

APLNG’s Main Pipeline System (MPS) and High Pressure Gas Network (HPGN), which are operated by Origin Energy, supplies gas to the LNG export facility at Curtis Island in Gladstone, Queensland.

The Globe Valve Bypass project involved works to remediate facilities on the MPS and HPGN that previously limited the de- pressurisation and re-pressurisation capabilities of assets within the systems.

Nacap was engaged to undertake procurement, offsite fabrication and brownfields site installation works involved with the Project, including:

  • Procurement, surveillance, QA/QC and expediting of engineered materials such as globe valves, ball valves, restriction orifices, instrumentation, and other permanent materials
  • Procurement and management for offsite fabrication of pipework and structural steel
  • Engagement of specialist sub-contracts such as third party inspection, non-destructive testing and post weld heat treatment
  • Installation of pipework, structural steelwork and mechanical equipment
  • Piping and electrical tie-in to operational MPS and HPGN assets
  • Installation of concrete piles and footings
  • Installation of electrical and instrumentation equipment
  • Pre-commissioning of the installed equipment
  • Commissioning assistance

All site works will be conducted at brownfield facility sites under the Origin Integrated Safe System of Work (ISSoW).

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Key Achievements

Early mobilisation

Completion of works in prioritised phases from Nov 17 to Dec 18

5 crews active across different work sites at one time

Exceptional planning and communication by the site team in delivering over 176,000 man hours of work and approx. 1,200,000km driving incident free.