Our client required a reliable constant high flow water supply to feed positive displacement pumps to conduct export line pigging and flushing, prior to the lines being decommissioned. The offshore platform could not supply this water from its own pumps and reinstating the original or installing new cason submersible pumps would have been too costly.
We prepared a rental equipment spread that was configured to be installed, deployed, operated, recovered and de-rigged with minimal platform interfaces. The limited electrical power supply meant a diesel HPU was required to run the submersible pumps. These were specifically chosen to provide enough volume and pressure to act as a boost to the pumps with the water, feeding the positive displacement pump suction manifold directly. This removed the need for break tanks and surface boost pumps, keeping the overall package footprint to a minimum.