On Monday 26th May at 16:24 a gas release occurred whilst destructing the redundant flow streams of the metering package. The flow lines were being cut into sections before being removed by the platform crane. A drill was being utilised to create a pilot hole to enable a powered saw to cut the pipework. The drill operative was working ahead of the saw operator and had drilled a series of holes into the redundant pipework when he positioned himself next to the live gas line stub end. A 6mm hole was drilled into the adjacent live line and there was a release of hydrocarbon.
The drill operator raised the alarm and the platform was shut in and topsides vented. The platform export pressure at the time was 19 PSIG.
Mark redundant pipework so that it is identifiable from live pipework;
Ensure comprehensive risk assessments are carried out at site, communicated to the work party and properly documented;
Verify the experience of people in your platform (e.g. new starts). Ensure the hi-viz hat cover policy is adhered to;
Ensure there is suitable supervision to the level of experiencie on board;
Ensure sufficient training of Control of Work processes and hazard identification processes.
Provide a comprehensive decommissioned/redundant equipment register;
Mark up redundant lines to identify them from live plant, and verifiy labelling on a regular basis;
Enhance the quality of workpacks to ensure every aspect of work is captured, inclusive of risk assessment (marked-up redundant pipework should have been captured in past one)
Ensure a comprehensive and robust Change Management procedure is in place, and all who are working on it are trained;
Verify the process to ascertain contractor competency;
Enhance resources to ensure appropriate supervision is provided for workscopes, inclusive of NUI installations.