X-Subsea completes trenching project off coast of West AfricaProjects and Operations // November 20, 2014
X-Subsea has completed a project off the coast of West Africa, delivering a unique solution for shore approach trenching.
The project scope of work involved the trenching of a 10in pipeline close to the shore with a target burial depth of 2m for a distance of 18.4km.
The key challenge that X-Subsea engineers encountered was meeting the client’s objective of performing excavation whilst the lay barge was laying pipeline.
To achieve this goal, X-Subsea adapted its patented Ultra Low Draft Twin R2000 excavation tool which resulted in allowing the trenching to be carried out effectively along the shore approach section in waters below a water depth of 1.5m.
This highly adaptable tool, combined with an innovative technique where Controlled Flow Excavation (CFE) was used, has revolutionised the shore-approach trenching market and X-Subsea’s solution has generated a great deal of interest in the West African region and in other regions.