PTTEP-led Arthit carbon capture project advances with processing unit contract

PTTEP contractor Thoresen Jutal Offshore Engineering Heavy Industries Ltd. (Thailand) let an engieneering contract to Technip Energies for the Arthit Carbon Capture and Storage (CCS) project 230 km offshore in the Gulf of Thailand.

Technip Energies’ scope includes detailed engineering for new CCS processing units and CO₂ injection infrastructure with brownfield modifications to the existing Arthit central processing platform.

The award follows Technip Energies’ prior engagement on the project, having delivered both the pre-FEED and FEED phases between 2022 and 2023.

Operator PTTEP, on Sept. 8, 2025, reached final investment decision (FID) to develop the CCS project at Arthit gas field with CO₂ storage expected to start in 2028. The company will leverage existing field infrastructure in addition to the construction and installation of additional components as needed.

Storage capacity is expected to gradually ramp to about 1 million tonnes/year (tpy) of CO₂, in line with government policy under the Nationally Determined Contribution (NDC) Action Plan on Mitigation 2021–2030.