Tratamento de água para caldeiras em unidades flutuantes de produção, armazenamento e transferência de petróleo (FPSO)

Abstract

From the 80s the frontierof oil exploration offshore began walking toward more distant regions of the coast reaching progressively greater depths. This change was reflected as changes in costs, technological advances and the need for new types of facilities to perform the function of traditional production platforms that had no storage capacity or allow pumping of production due to distance and lack of pipelines installed. One solution was to change the oil tankers of the Very Large Crude Carrier (VLCC) in FPSO where processing equipment for oil and other were installed, adjusting the vessel to its new type of activity. In some designs, the ships that had propelled by steam turbines had removed its propulsion system, since it would no longer necessary, and had kept the steam generation system in order to meet unique systems of the vessel and the others who were added. Necessary for proper operation of the steam generation system care had no significant change; however, some conditions have changed. An FPSO is designed to remain in the field of production, offshore, for approximately 20 years. The ease of being periodically in a harbor or doing repairs in a shipyard ceased to exist. The security requirements of logistics for the embarkation of persons and equipment and limiting the number of people embedded among other things, demanded adequacy of the management of the vessel to meet the diverse needs and maintain operating systems as the main power generation capacity, oil transfer (offloading) and the injection of water into the oil reservoir (core systems on a FPSO). All of these systems depend directly on the steam system and consequently a correct water treatment for boilers.