Repurposing Hydrocarbon Pipelines to Transport CO2: PETRONAS' Study

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Repurposing Hydrocarbon Pipelines to Transport CO2: PETRONAS' Study

Mon, 02/27/2023 - 19:53
PETRONAS
PETRONAS

PETRONAS is considering pipeline repurpose option for one of its CCS projects in Malaysia. One of the opportunities identified is to repurpose existing gas export pipelines, 24in and 30in with combined distance of 200km from offshore to onshore. Existing technical frameworks from available standard and internal resources for pipeline repurpose have been reviewed. This is to provide complete approach to pipeline repurpose. Qualitative risk assessment (QRA) for pipeline repurpose is presented by discussing technical recommendations made by the feasibility study team. This feasibility study involves CO2 characterization, review of existing hydraulics analysis, fitness for service (FFS) result review, Battelle Two Curve Method (BTCM) check against existing pipeline toughness and sour compatibility check. Existing pipeline capability limits are established to provide clarity if PETRONAS able to transport CO2. Further analyses are identified accordingly to address the established limits.

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