UTEC NCS Survey completes West African project

May 27, 2015

UTEC NCS Survey, an Acteon company, has recently completed three months of AUV operations for a number of Saipem projects located in West Africa. 

UTEC NCS performed pre-lay and as-laid surveys using their Gavia autonomous underwater vehicle (AUV) systems on the Mafumeira and Litchendjili fields, offshore Angola and Congo. Using one of seven GAVIA AUVs, an anchor pre-lay side scan sonar survey was carried out in the Mafumeira field to clear the way for barge operations alongside the Mafumeira Norte Platform. The ability to work inside the 500m zone of the platform without affecting the platform operations was of particular value for this project.

Pipeline route and barge anchor corridor pre-lay surveys were carried out in Litchendjili in water depths of 3m to 12m utilizing the GAVIA’s multibeam and side scan sonar. The GAVIA was re-deployed to carry out post lay operations along the pipeline corridor to inspect for free spans and other anomalies. 

Image: Gavia AUV/NCS Survey



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