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Gorgon CCS project starts up

Chevron begins injecting carbon dioxide from Australian LNG project underground

US supermajor Chevron has started up one of the world’s largest carbon capture and storage (CCS) projects at its Gorgon liquefied natural gas project in Western Australia.

Chevron confirmed Thursday the safe start-up and operation of the carbon dioxide injection system on Barrow Island.

The reinjection project sees CO2 separated from the gas stream prior to processing and liquefaction on Barrow Island, instead of being flared it is then injected into the Jurassic Dupuy Formation at a depth of about 2.5 kilometres.

Gorgon CCS 'very, very close' to start-up

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The project includes nine CO2 injection wells at three drill centres, two pressure management drill centres, two reservoir surveillance wells, a seven-kilometre underground pipeline from the LNG plant site to the drill centres and three CO2 compressor modules.

The company claims that, once fully operational, the CO2 injection system will reduce greenhouse gas emissions from the Gorgon project by about 40%, or more than 100 million tonnes over the life of the project.

“We are pleased to reach the first milestone of safely starting the operation of the Gorgon carbon dioxide injection system, one of the world’s largest greenhouse gas mitigation projects ever undertaken by industry,” Chevron Australia managing director Al Williams said.

“We are monitoring system performance and plan to safely ramp up injection volumes over the coming months as we bring online additional processing facilities.”

Massive Gorgon reinjection project slips behind schedule

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The start-up of the facility comes more than three years since the first LNG cargo left Barrow Island after technical problems found with the gas injection system during commissioning saw the start-up schedule for the injection project slip back.

Chevron operates the Gorgon project with a 47.3% interest and is partnered by ExxonMobil and Shell, each on 25%, Osaka Gas on 1.25%, Tokyo Gas on 1% and Jera on 0.417%.

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