Corrosion Control for above ground crude oil storage tanks presents a real challenge due to the factors like large and complex tank geometries, the proximity of anodes to the tank bottom, tank design, electrical isolation etc. The issue is further complicated by the provisions such as leak detection system, secondary containment or specialized foundation designs.

Inadequate / inappropriate corrosion control may pose serious environmental and safety hazards, in the event of leakage / seepage from the large crude oil storage tanks, which handle enormous amounts of highly flammable hydrocarbons. Various solutions implemented to achieve effective corrosion control in above ground crude oil storage tanks at various locations by Energy major in India, have been described to evaluate effectiveness of the implemented solutions.

The effectiveness of the implemented corrosion control methods has been evaluated by periodic inspections during Maintenance and Inspections over a period of more than twenty years.

Subject
Circuits, Coatings, Cathodic protection, Walls, Inspection, Corrosion losses, Crude, Storage tanks, Corrosion protection, Tank bottoms, Soil, Anodes, Oil
Keywords:
Cathodic Protection, Tank Bottom, Soil Side Corrosion, Corrosion Control
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2017
Association for Materials Protection and Performance (AMPP)
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