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The facts
Project overview
Key Achievements
Industry Sectors
The Facts
DN 1050 (42 inch)
High pressure gas pipeline
Average crossing length 150m
Each 12m pipe length 25 tonnes
30 special crossings
Project Overview

The QCLNG Pipeline Project involved expanding Queensland Gas Company’s (QGC) existing CSG operations in the Surat Basin of southern Queensland and transporting the gas via an underground pipeline to a gas liquefaction and export facility on Curtis Island, near Gladstone.

Here the gas is converted to LNG for export to markets in the Asia Pacific region and around the world.

The construction contractor was MCJV, a joint venture between McConnell Dowell Constructors (Aust) Pty Ltd and Consolidated Contracting Company Australia Pty Ltd. Nacap was invited by the MCJV to support pipeline construction which was facing some significant challenges in completing the hundreds of various special crossings within the required timeframe.

These special crossings included creeks, roads, access tracks, railway lines and third-party utilities and 580 fences.  Of critical importance in meeting QGC requirements was a tight restriction on time each crossing remained open between clear and grade and reinstatement.

Nacap quickly mobilised resources including our large side booms and successfully delivered our component of the project which consisted of 30 of the largest more complex crossings averaging approximately 150 m each. At the successful conclusion of Nacap’s contract, QCG requested that Nacap be retained to support the remainder of the project based on the quality of the work they delivered.

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Key Achievements

QGC Managing Director Derek Fisher said the milestone represented a world-class engineering feat, saying at the time “This is a tremendous achievement, meaning we remain on track to start commissioning the world’s first plant to convert natural gas from coal seams into liquefied natural gas".

Invited to be retained at contract conclusion for another 28 day cycle to support final overall project delivery due to quality of work