OS COR 420 - Drilling Corrosion Inhibitor
Oilfield tubulars and other downhole equipment must be protected from all types of corrosion when exposed to well fluids of any kind. Surface corrosion is a common cause of tubular failures and must be controlled at all times. Corrosion inhibitors should be applied to all fluids that have the potential to create a corrosive environment.
OS COR 420 is a formulated product containing a mixture of amines in a water carrier solvent. OS COR 420 is used as a general drilling fluid inhibitor and for applications involving packer fluids and completions fluids.
Typical Physical Properties
Appearance - Brown Liquid
pH - 10.0 – 12.5
Flash Point (PMCC) - Greater than 60oC
Solubility - Water and brine
Pour point - < 0oC
OS COR 420 can be used with drilling fluids and their associated solids content as well as with clear fluids for completion/workover applications. OS COR 420 is designed to have a high solubility in sodium chloride and calcium chloride brines. OS COR 420 will not interfere with normal drilling fluid properties.
For use as a standard drilling inhibitor, to prevent corrosion of the drill string, it is recommended to be used at 2% of the drilling fluid volume.
For use in clear fluids it is recommended to be added at 0.5-1.0% of the fluid volume.
OS COR 420 is packaged in 55 US gallon drums.