The company was awarded an engineering and design contract by the MCJV joint venture, between McConnell Dowell and Consolidated Contractors Company, for the pipelines on behalf of Queensland Curtis LNG (QCLNG) and Asia Pacific LNG (APLNG).

KBR will provide pipeline design, process, civil and structural, mechanical and electrical engineering and instrument controls.

The pipelines will carry coal seam gas (CSG) from gas fields in central Queensland to an export facility on Curtis Island.

The first pipeline involves designing more than 580 km of pipe connecting central Queensland to the coast for QCLNG. It includes approximately 374 km of 42 inch diameter CSG pipeline, approximately 169 km of 42 inch diameter CSG collection header pipeline and six collection laterals of 12–24 inch diameter of approximately 5.4 km.

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A second pipeline for QCLNG and a third pipeline for APLNG will both consist of 42 inch diameter high-pressure transmission pipelines from the main line valve on the Queensland mainland, across the Narrows to the Curtis Island delivery station.

The shared design for the Narrows pipelines is the result of an agreement between QCLNG and APLNG to jointly contract to design build and deliver the two coastal pipelines.