FPSO Maintenance and Cleaning

Sureclean are a major provider of maintenance services for Floating Production Storage and Offloading, (FPSOs) or similar type vessels worldwide. FPSO’s are bespoke built or converted tanker type vessels which are used for oil and gas production and storage. Regular planned maintenance routines (PMR) are necessary to protect the FPSO from the harsh environment in which it operates and to prolong / optimise the lifespan of the vessel.

Further to ongoing planned maintenance routines, as part of a risk-based inspection cycle (nominally around every 5 years), operators undertake integrity checks of the ballast system (tanks, pipework) and the oil storage system (pipework, controls, cargo and slops tanks) in order to monitor wall thickness, and workability of valves and pipe work. This necessitates removal of tank contents followed by deep cleaning to facilitate inspection.

Accordingly, Sureclean have invested in an extensive range of specialist vacuum and pumping technology which complements our fleet of high pressure (HP) and Ultra High Pressure (UHP) water jetting equipment, developing a range of technologies, methods and solutions using tank cleaning heads, vaccum transfer systems and other pumping solutions to clean tanks and vessels either remotely or with minimum man entry. ATEX compliant, our equipment is rated for safe use in hazardous areas and is suited to the challenging requirements of removing aqueous waste, heavy sludges, sands and similar materials from tanks within FPSO’s ballast and oil storage systems.

Engineering the Safe Movement of Waste Materials

Using Vacuum transfer and pumping technology (it is not uncommon to use a combination of both), Sureclean are experienced in engineering safe and ergonomic solutions for the controlled movement of a broad range of waste materials including:

• Liquids
• Sludge's, Sands, Muds and Cuttings of varying viscosity and weights up to specific gravity (SG) of 3
• Powders, Barites and Cement

Sureclean have a proven capability of moving and transferring a range of media at a rate of 12m3 per hour up to 50 metres vertical, and over distances up to 60 metres.

Hydrocarbon Separation and Recovery

Sureclean have developed an effective process for hydrocarbon separation and recovery using separator, scrubber, heat exchanger and centrifuge technology together with chemical agents. Recovered oils are transferable to the client's process system and the treatment solution cleaned for re-use.

Tank Cleaning

Water (hydro) jetting is the most common proven and effective application for tank cleaning and Sureclean own and operates a fleet of the latest equipment technology. In addition to our extensive water jetting equipment inventory, both HP and UHP, we also have complementary remote deployed tank cleaning systems and accessories encompassing 3D Cyclene and Hurricane Systems (High Pressure) and 3D Whizzy Head Systems (High Volume).

The 3D cleaning systems completes a cyclonic cycle operating at pressures up to 850 bar and flow rates ranging from 70 to 360 litres per minute.

In addition, by utilising safe access systems (client supply) Sureclean can provide the necessary trained experienced resources to deliver traditional jetting operations. Alternatively, when the supply of safe access systems is unavailable or prohibitive, Sureclean can augment work teams with the supply of trained, experienced rope access personnel to perform jetting operations. The same rope access personnel can be utilised by the client for inspections services.

On-Location Modular Waste Treatment Solutions

Further to our hydro-carbon recovery process, Sureclean have developed a range of environmentally sustainable treatment solutions centred around produced water treatment, sand washing and tri-phase separation solutions, all of which are modular allowing treatment to undertaken on-location.

By treating waste on location this enables a reduction in the level of effluent pollutants which need to be discharged, Sureclean is helping clients ensure they achieve and even surpass legislative requirements, while enhancing performance and maximising productivity.

Tank Coatings

Sureclean has the equipment, the experienced operatives and the techniques to apply conventional or specialist protective internal tank linings in accordance with manufacturers' and client specifications.

Caisson Inspection and Maintenance

Not all vessels have caissons, where this is necessary, our rope access associates will provide the necessary resources to undertake caisson cleaning (internal and external) and associated inspections.

Hull, Deck Structures and Walkways

Sureclean provide a comprehensive fabric maintenance service including surface preparation using UHP water jetting technologies or traditional abrasive or mechanical methods and subsequent coating application in accordance with manufacturers and client specifications.

Utilising specialist technology such as our remotely operated mantaray system for surface preparation, augmented by rope access personnel, Sureclean can provide on-location integrity and fabric maintenance upgrades to the hull.