Oil Phase Corrosion inhibitors rely principally on the formation of barrier coatings preventing water from metal surfaces. Since the product is in ready to use form, it can be used directly from the container without any need of preparation.
The most common problem encountered in crude oil industries is corrosion. It degrades all the metal components of pipelines, drilling bits, etc. With continual extraction of CO, HS, water, oil the equipment undergo corrosion resulting in loss of mechanical properties of the materials and eventually leading to metal loss. Corrosion inhibitors protects both ferrous and non-ferrous metals like stainless steel, copper, aluminium, brass, copper, zinc, tin, bronze, and lead.
For parts that need longer term protection (months to years) or those stored in severe environmental conditions (i.e. outside storage) oil-based inhibitors are preferred due to their heavy film and the water rejecting properties they possess. The protective coating they form varies (semi-hard, soft, oily, transparent, colored) with the specific product.
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