VCI FPSO Preservation & Marine Asset Lay-Up

1. MARINE HULL, HYDROCARBON & PROPULSION SYSTEMS PRESERVATION GUIDE

FPSO Cargo Tank and Hydrocarbon Piping VBCI Preservation

Hydrocarbon Storage & Piping

• Assets Covered
Cargo tanks, slop tanks, cargo piping, crude oil transfer lines, fuel tanks, and fuel lines.

• Main threats
Vapor-space corrosion, bottom-water corrosion, internal pitting, and sludge-related corrosion driven by condensation, oxygen ingress, water bottoms, hydrocarbons, organic acids, and sediments.

• Recommended Vappro System
Vappro VBCI 851
Vappro VBCI 823 and Vappro VBCI 867 for internal cargo/slop tank surfaces
Vappro VBCI OP 529 for slop tank sludge

• Preservation Objectives
Protect upper vapor spaces, bottom plates, and internal line passages during shutdown or stagnant hold cycles.

FPSO Double Bottom and Internal Hull Void Spaces Protection

Internal Hull Voids & Enclosed Spaces

• Assets Covered
Void spaces and double-bottom spaces.

• Main threats
Hidden atmospheric corrosion, differential aeration, and moisture accumulation from humidity cycling, trapped marine air, and restricted ventilation.

• Recommended Vappro System
Vappro VBCI 823
Vappro VBCI Moisture-Sorb
Vappro VBCI 850 and Vappro VBCI 851 for vapor-phase protection variants

• Preservation Objectives
Establish long-term vapor-phase protection across inaccessible, unventilated internal steel surfaces.

Marine Engine and Turbine Lubrication Systems Preservation

Machinery Lubrication & Hydraulic Systems

• Assets Covered
Lubrication systems, hydraulic systems, main engines, generators, turbines, compressors, and flight control/crane gearboxes.

• Main threats
Internal uniform corrosion of bearings, gears, and crankcases caused by condensation, moisture films, oxygen exposure, stagnant lubricants, water contamination, and acidic oil residues.

• Recommended Vappro System
Vappro VBCI 850
Vappro VBCI 851 and Vappro VBCI 823 explicitly for enclosed turbine/compressor vapor zones

• Preservation Objectives
Protect oil-wetted internal surfaces, internal components, and lubrication circuits from moisture-driven degradation.

FPSO Ballast Tank and Seawater Cooling System MIC Protection

Seawater & Biological Utility Loops

• Assets Covered
Ballast tanks, seawater cooling systems, and firewater systems.

• Main threats
Pitting, under-deposit corrosion, tuberculation, and Microbiologically Influenced Corrosion (MIC) driven by stagnant seawater, oxygen, chlorides, and sulfate-reducing bacteria.

• Recommended Vappro System
Vappro VBCI 844
Vappro VBCI OP 529
Vappro VBCI 867 for ballast tank internal coatings alongside an approved biocide program.

• Protection Objectives
Control localized chloride-induced attack and eliminate bacterial biofilm formation in stagnant water zones.

Freshwater Cooling and Pressure Vessel Hydrotest VCI Inhibitor

Freshwater Loops & Hydrotesting

• Assets Covered
Freshwater cooling systems, hydrotest systems, and pressure vessels.

• Main threats
Flash rusting, internal scale tendencies, and pitting caused by oxygenated water, chlorides, mineral imbalances, and residual post-test moisture.

• Recommended Vappro System
Vappro VBCI 841 (Cooling Circuits)
Vappro VBCI 844
Vappro VBCI 849 CF (Hydrotesting)

• Protection Objectives
Preserve cooling water circuit parameters and protect pressure vessels during and immediately after wet test procedures.

2. TOPSIDE MECHANICAL HARDWARE, ELECTRICAL SYSTEMS & LOGISTICS INVENTORY MATRIX

Search:

SYSTEM / ASSET CATEGORY	INDIVIDUAL COMPONENTS COVERED	MAIN CORROSION DRIVER & SCIENTIFIC CAUSE	RECOMMENDED VAPPRO SOLUTION	PRESERVATION OBJECTIVE
EXPOSED DECK MACHINERY & STRUCTURES	Deck equipment, cranes, winches, mooring equipment, offloading equipment, and pumps/valves.	Severe atmospheric corrosion, wire-rope degradation, and surface oxidation driven by constant marine salt spray, UV exposure, rainfall, humidity, and stagnant grease.	Vappro VBCI 868 Vappro VBCI 869 Vappro VBCI 887 for surface passivation on raw/damaged coating areas.	Protect exposed structural steel, wire ropes, and internal pump/valve passages while maintaining mechanical operability.
FLANGES, SUPPORTS & SEALING INTERFACES	Flanges, bolted joints, pipe supports, clamps, couplings, and hose ends.	Crevice corrosion, bolt seizure, and Corrosion Under Pipe Supports (CUPS) from water and chlorides trapped in narrow contact gaps following coating breakdown.	Vappro VBCI 869 CorroTape Vappro VBCI 868	Exclude marine moisture from thread roots, studs, nuts, and flange gaps to prevent hidden support-interface binding.
ELECTRICAL NETWORKS & CONTROLS	Electrical switchboards, Motor Control Centers (MCCs), control panels, PLC cabinets, and instrumentation junction boxes.	Contact corrosion, silver tarnish, PCB degradation, and intermittent faults caused by condensation, relative humidity films, airborne pollutants, and salt contamination.	Vappro VBCI Emitters Vappro VBCI Moisture-Sorb Vappro VBCI 823 inside larger volume instrument enclosures.	Form an invisible, residue-free vapor molecular shield over relays, terminals, and connections to ensure electronics reliability.
ELASTOMERIC COMPONENTS & HABITS	Rubber seals, gaskets, hoses, accommodation rooms, and HVAC air treatment spaces.	Polymer hardening, cracking, ozone/UV degradation, structural mold accumulation, fungal growth, and stagnant odors.	Vappro VBCI Rubberplast Vappro VBCI Moisture-Sorb Vappro VBCI AMS Anti-Mold Spray (HVAC/Habitation).	Maintain critical seal flexibility while suppressing biological spores to ensure healthy indoor air quality.
WAREHOUSE LOGISTICS & SPARES INVENTORY	Spare parts warehouse stock and critical spares packed for export sea freight.	Accelerated shelf rust and contact oxidation driven by radical transit temperature cycling, container sweating, and chloride deposition.	Vappro VBCI 826S Vappro VBCI 823 Pouches Vappro VBCI Moisture-Sorb.	Create a sealed, self-contained VBCI microenvironment to safeguard replacement stock in immediate ready-for-reactivation status.

Showing 5 entries

3. INTEGRATED MARINE & OFFSHORE PRESERVATION BLUEPRINT

A system-wide chemical preservation sequence that balances heavy structural protection with clean, residue-free electronic protection.

PRODUCT: Vappro VBCI 850 and Vappro VBCI 851
PURPOSE: Protect engines, gearboxes, hydraulic circuits, fuel systems, tanks, and internal pipelines against moisture ingress, lubricant degradation, and internal corrosion.

PRODUCT: Vappro VBCI 844, Vappro VBCI 867 and Vappro VBCI OP 529
PURPOSE: Control chloride attack microbiologically influenced corrosion (MIC), seawater pitting, ballast tank deterioration, and biological contamination.

PRODUCT: Vappro VBCI Emitters
PURPOSE: Protect PLC cabinets, control panels, junction boxes, sensors, terminals, and electronic systems without leaving oily or insulating residues.

PRODUCT: Vappro VBCI 868, Vappro VBCI 869 and CorroTape
PURPOSE: Protect exposed structural steel, flanges, bolts, threads, wire ropes, clamps, and crevice-prone interfaces from atmospheric and galvanic attack.

PRODUCT: Vappro VBCI 826, Vappro VBCI 823, Vappro VBCI Moisture-Sorb and Vappro VBCI Rubberplast
PURPOSE: Establish protected storage environments for spare parts, elastomers, export items, warehouse inventories, and long-term lay-up equipment.

Advanced vapour corrosion inhibitor solutions for industrial asset preservation and corrosion protection worldwide.

10H, Enterprise Road, Singapore 629834

(65) 6786-2616

info@vapprovbci.com

VCI FPSO Preservation & Marine Lay-Up