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creating an interconnected gas gathering system

The proposed Trans Carnarvon Basin Trunkline solution is a multi-user offshore pipeline which creates a truly ‘interconnected basin’.

The proposed Trans Carnarvon Basin Trunkline (TCT) will provide the most efficient and economic solution to develop the gas of the future.

On 15 May 2018, Chevron Australia Managing Director Nigel Hearne announced the company’s position to take a shared approach to the development of the Carnarvon Basin. 

Chevron Australia believes with greater industry collaboration and government support, we will most efficiently unlock the resources in the ground and extend the benefits.

Industry collaboration will ensure the most economically efficient approach to the future development of Australia’s offshore resources and will maximise the potential of our nation’s abundant resources.  As we develop more fields and bring gas to shore to fill available LNG processing capacity, we will get more LNG to market and with it greater volumes of domestic gas for Western Australia. Collaboration will drive efficiencies, minimise duplication of infrastructure and boost Australian government revenue.

An interconnected basin vision, involving a gas gathering system underpinned by shared infrastructure, is the best and most responsible way of developing our resources. 

the interconnected basin vision

The proposed Trans Carnarvon Basin Trunkline (TCT) solution is a multi-user offshore pipeline which creates a truly ‘interconnected basin’. 

Spanning the width of the Carnarvon Basin, a TCT could link remote accumulations such as Scarborough, Thebe and the Exmouth fields, to existing gas facilities such as the North-West Shelf, Pluto and Wheatstone. 

It would enable gas from offshore fields to flow to where it is needed, and when it is needed via an onshore interconnector across the Burrup Peninsula. 

Combining this with existing pipelines to shore that interconnect with the Dampier Bunbury Natural Gas Pipeline, there are significant opportunities for system optimisation and value creation.  

A concept such as the TCT has numerous potential benefits when executed with collaboration in mind:
It improves the development likelihood of several hydrocarbon fields, including remote, deep and current uneconomic fields  
It minimises duplication of pipeline infrastructure, and keeps our established gas plants full, creating an interconnected and efficient transportation system
It delivers greater domestic gas volumes to shore enabled by increased LNG volumes
It creates the best possible opportunities for local industry and WA jobs; and
It reduces the industry’s environmental footprint by having a smaller number of pipelines

Read Nigel Hearne's full APPEA Conference speech here >