AIV – Paving the way for an Autonomous Light Intervention Vehicle
When Subsea 7 and SeeByte collaborated in engineering the AIV, the world’s first purpose built Autonomous Inspection Vehicle, they were looking for a new cost-effective asset for inspecting LoF (Life of Field) projects. The AIVs software was designed to dynamically control this unique hover-capable vehicle, which is already being used in Subsea 7 LoF projects for general visual inspection. It can also be used as an aid to field survey, integrity management and developments continue, looking at expanding its use to light intervention activities. One of the advantages of the AIV over other AUV’s is its capability to hover, maintaining station when necessary. It also has the ability to operate directly from a host facility such as an FPSO or rig as well as from infield support vessels.
Pre-salt Seafloor Construction/Remote Operations Challenges Part 3
With the experience Petrobras has gained in deepwater field construction, the national operator has learned the best ways to get the job done and who to work with. Much of Petrobras’ deepwater seafloor construction work has been done by DOF, Technip, Subsea 7, FMC and Aker. Large deepwater post-salt fields such as Roncador, Frade and Marlim amongst others have been the main testing grounds of many construction techniques and much of the equipment being installed. Obviously, experience in deepwater seafloor construction has also been gained by Petrobras and service providers in locations such as the GoM and West Africa. Most of the pre-salt subsea trees will be built and installed by FMC, OneSubsea and Aker. FMC has a total order worth $1,5 billion, which was announced in March of 2012.