Project Description
Non-linear Internal Wave (NLIW) induced currents are prevalent at numerous locations offshore the North West Shelf and elsewhere around the world. Routing pipelines through areas of significant NLIW activity requires careful design to ensure the pipeline remains stable when subjected to large near-bed currents. The aim of this project was to review (1) existing design practice concerning pipeline stability design in locations where NLIW are significant, and (2) recent research findings on NLIW and pipeline stability assessment which may be used to improve upon this existing practice.
Based on the review, a list of recommendations were made and shared with Woodside. A unique meeting was also hosted by UWA and Woodside to share the recommendations with representatives from four of the main pipeline engineering consultancies. This led to refinement of the recommendations and has motivated further work.