FMEA, sistema DP e navios-sonda

Abstract

Brazilian law defines as a platform any marine structure having flat areas above sea level used for exploration, production and storage of oil operations. The most common types of offshore platforms, used in petroleum activities are the following: fixed steel platform, gravity platform, gravity platform for storage, support platform, articulated tower, artificial island, pumping rig, jack-up platform drilling rig, compliant platform, accommodation platform, floating accommodation, guyed tower, hybrid-platform, semi-submersible platform, tensioned leg platform,anchored platform andself-lifting platform with inclined legs. The drillships, having flat areas above sea level used for oil exploration related activities, also fits that definition.The dynamic positioning system is a device that allows a vessel tomaintain its position on thewater and it won’t requireany contact with the ground, which would have avoidedthe maritime activitiesto happen. Even if hypothetically there could be an anchorto touch the bottom, the vessel would still suffer the effects of the weather and the tides. This situation would incapacitate aPSV, platform supply vessel, or even the drillship itself to proceed totheir operations.FMEA (Failure Modes & Effect Analysis) is a report that provides any failureinformationof a project or process as the simple act of driving a valve in the engineroom, whose aim is to guide the operator, the Marine Engineer, toward the fastest and most efficient solutionof the problem. Concerning safety criteria, the operationmustalways continue, even with the occurrence of system failures. It is of utmost importance that the Marine Engineerseek the biggest amount of information, such as from equipment manuals and the FMEA itself, so that their decision making is the most accurate possible in any activity that is being developed.