The decommissioning of offshore platforms is a fundamental step in the life cycle of oil and gas production facilities. This process involves the planning, preparation, and execution of technical activities necessary for the safe deactivation of platforms, subsea systems, and other structures used in the exploration and production of hydrocarbons in a marine environment.
With the end of an oil or gas field's useful life, it becomes necessary to decommission the offshore platforms, ensuring that all systems and equipment are deactivated safely, in an environmentally responsible manner, and in compliance with the regulatory standards applicable to the oil and gas sector.
During the offshore decommissioning process, several specialized activities are performed, including industrial cleaning, system inerting, fluid drainage, waste removal, equipment decontamination, and preparation of structures for dismantling or removal.
TSL Engenharia, Manutenção e Meio Ambiente provides technical solutions focused on the preparation and cleaning stages of systems during offshore platform decommissioning projects, contributing to the safe and efficient deactivation of equipment.
The offshore decommissioning process involves a series of steps that must be executed in a planned and controlled manner, ensuring the integrity of operations and the protection of the environment.
Among the main activities carried out in this phase, the following stand out:
These activities are essential to ensure that the structures are safe for subsequent dismantling, transport, or disposal stages.
During the decommissioning of offshore platforms, one of the most important steps is the technical cleaning of process systems. Storage tanks, transfer lines, separators, and industrial equipment often show an accumulation of oily residues, scale, sediment, and contaminants built up over years of operation.
Industrial cleaning using high-pressure water jetting is widely used in these cases, allowing for the efficient removal of residues adhered to the internal surfaces of equipment. Water jetting equipment can operate at pressures ranging from 1,800 to 40,000 psi, ensuring high performance in removing encrustations and contaminants.
In many cases, it is also necessary to inert tanks, pipelines, and process systems using saturated steam or inert gases to eliminate flammable vapors and allow for the safe execution of cleaning and maintenance activities.
These steps are fundamental to reducing operational risks and preparing the equipment for the demobilization or dismantling phase of the platform.
TSL Engenharia, Manutenção e Meio Ambiente has extensive experience in providing specialized industrial cleaning, hydroblasting, inerting, and maintenance services in offshore environments, directly contributing to the decommissioning of platforms and maritime units.
With over 40 years of experience in the industrial and offshore sectors, TSL has highly trained teams and modern equipment to perform services on oil platforms, FPSO (Floating Production, Storage and Offloading) vessels, and other maritime production units.
The company holds ISO 9001:2015, ISO 14001:2015 and ISO 45001 certifications, as well as INMETRO accreditation under ISO 17025, ensuring high standards of quality, operational safety and environmental management in all its activities.
TSL's involvement in offshore decommissioning projects helps ensure that the cleaning, decontamination, and system preparation stages are carried out safely, efficiently, and in compliance with the regulatory requirements of the oil and gas sector.
Contact TSL Engenharia, Manutenção e Meio Ambiente and learn about our specialized solutions in industrial cleaning, high-pressure water jetting, system inerting, and technical services for offshore platform decommissioning projects.
Decommissioning is the set of activities that ends the operation of an oil and gas production facility at the end of its service life: shutting down production, cleaning and decontaminating equipment, removing or disposing of structures and restoring the area environmentally. In Brazil, the process for exploration and production facilities is regulated by the ANP (National Agency of Petroleum, Natural Gas and Biofuels) under ANP Resolution 817/2020, and also requires environmental licensing from IBAMA (Brazilian federal environmental agency) and compliance with Brazilian Navy requirements.
Cleaning is a central stage: tanks, lines and equipment that have contained hydrocarbons must be clean and inerted before dismantling, to eliminate the risk of explosion and contamination.
With an operational base in Macaé (RJ), TSL serves units in the Campos Basin and other locations, with crews trained for offshore work and confined space entry, and operations governed by ISO 9001, ISO 14001 and ISO 45001. See also offshore maintenance.
It is the process of safely deactivating a platform at the end of its service life, including cleaning, waste removal, inerting and dismantling, in compliance with environmental standards and the rules of ANP (Brazil's National Agency of Petroleum, Natural Gas and Biofuels).
The stages include planning, cleaning and decontamination of equipment, inerting of tanks and lines, waste removal and environmentally sound disposal of materials.
Cleaning is a central stage: tanks, lines and equipment that held hydrocarbons must be cleaned and inerted before any dismantling, to eliminate explosion and contamination risks.
The process follows ANP resolutions and the environmental requirements of IBAMA (Brazil's federal environmental agency), as well as the safety standards applicable to offshore operations.
