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Pipeline Pre-Commissioning

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Pipeline pre-commissioning is a process consisting of a number of stages.

Following on from the successful cleaning and gauging of a newly laid line, the hydrotest takes place followed by the subsequent dewatering and, potentially, drying of the line. At this stage, it is vital operators can collate the necessary data to allow them to move efficiently between these pre-commissioning stages and minimise costs.

Many pipeline systems consist of challenging internal geometry – the combination of tee pieces, wye pieces and complex subsea fittings found in manifolds & heavy wall pipe on FPSO topsides combined with the usual bends require careful pig design consideration. In addition, the appropriate pig tracking, locating and signalling methodology needs to be selected to ensure the pipeline pre-commissioning operation can be completed efficiently.

In addition to pig tracking and signalling, datalogging and testing solutions can facilitate the pipeline pre-commissioning process. These solutions include pipeline gauging data systems, pressure and temperature monitoring during the hydrotest and subsea sampling with real time data during the drying process.

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