Rolf Gunnar Lie

In 2023, an oil and gas operator in the East China Sea needed to upgrade its 28 inch gas export pipeline (GEP), including modifications to the pig launcher and associated pipework on one offshore production platform. The 345-kilometer GEP transports natural gas from the offshore platforms to the onshore processing terminal and is one of the...

Before the operator of a gas export pipeline offshore Asia could isolate the line and replace leaking pig trap valves on their platform and perform in-line inspection (ILI), they had to remove a serious obstacle: a cleaning pig that had stalled just beyond the pig launcher. Because there is no standard tool for recovering a stalled pig, at least...