Inspection of non-piggable pipeline for lifetime extension

The scope Jee’s client was operating a multi-phase oil production pipeline system beyond its original design life and therefore required an in-line inspection (ILI) to be carried out to verify the condition and confirm suitability for continued and safe operation. The pipeline was designed without pigging facilities and had subsequently never been in-line inspected during …

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Pipeline cleaning sequencing for decommissioning

The problem Centrica E&P were planning the decommissioning process for the A-fields area comprising of 3 fixed platforms, 7 subsea structures and 20 pipelines and umbilicals. Jee was contracted to assess the options for flushing, pigging and conditioning of the pipeline infrastructure and to advise an optimised base case cleaning methodology to be taken forward …

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