T.D. Williamson (TDW) and Statoil Petroleum AS share a frame agreement that requires TDW to provide pipeline pressure isolation services. The advantages of having such an agreement in place are immediately apparent in emergency pipeline repair scenarios (EPRS) where both companies are well prepared to move quickly and efficiently to repair pipelines without delay.
Statoil requested that TDW provide emergency isolation services on a 36-inch dry gas pipeline attached to the Heimdal Riser platform in the Norwegian sector of the North Sea. As the Heimdal platform is a major distribution point for the transport of Norwegian gas to the rest of Europe, it was critical that the platform be returned to production as soon as possible.
Statoil contracted TDW to use a 36-inch remote-controlled SmartPlug® pressure isolation tool to isolate the line while the repair works were performed. TDW had previously performed a successful isolation on the same line, and was therefore confident that the operation could be repeated with similar success within the narrow time frame. Pre-engineering for the line was complete, and specialist pipeline pressure isolation equipment and an experienced crew were on-hand, ready to respond, saving time and money.