During the past decades the offshore oil and gas industries have expanded tremendously, which has led to ever increasing demand for offshore support vessels (OSVs) to carry out different operations necessary for floating drilling rigs, as well as moored or fixed production platforms. In order to encompass a more varied and multi-functional role, the facilities installed on board OSVs vessels have been revolutionized, so that they are now among-st the most technically sophisticated vessels afloat.