Applied Ultrasonics for Noble Drillings Semi-Submersible Offshore Drilling Rigs

Noble Drilling retained Applied Ultrasonics to employ ultrasonic impact technology to treat the structure of one of their ABS classified semi-submersible offshore drilling rigs deployed in the North Sea, the Ton van Langeveld.

The rig, built in 1979, had consumed a considerable portion of its fatigue life from the years of high demand work in the face of some of the worst operating conditions in the world. In the North Sea, a drilling rig takes a constant beating and welds are exposed to enormous stresses coupled with the corrosive saltwater environment.

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