Carbon steel with inhibition chosen for sour-gas corrosion management

QATAR OFFSHORE-1Qatar Shell GTL Ltd. decided to use a carbon steel pipeline with inhibition to address corrosion-control problems caused by sour gas produced as part of its Pearl GTL project. Part 1 of this series, details the selection process used in making the decision. Three corrosion-control options were considered: corrosion-resistant alloy (CRA) pipelines; carbon steel pipelines with corrosion control by pH stabilization; and carbon steel pipelines with corrosion control by inhibition.Part 2 will detail the corrosion modeling used for design of the pipeline.The projectPearl GTL is to supply produced fluids from two blocks in the North Field, off Qatar. Current development plans cal...

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