PRODUCT DESCRIPTION NC-COR S corrosion inhibitor is an oil-soluble, slightly water-dispersible, film-forming organic amine. It effectively protects the drill string by forming a tough, persistent film on metal surfaces. It is compatible with all types of water-based muds, both weighted and unweighted. It is most applicable when severely corrosive conditions are anticipated, such as when utilizing air-drilling techniques, or in the presence of carbon dioxide or hydrogen sulfide gases. PHYSICAL & CHEMICAL PROPERTIES Appearance Dark Amber liquid Melting Point Alkali Hydroxide Flash Point > 63°C Solubility Form emulsion with water; Soluble in aromatic solvents APPLICATION NC-COR S protects steel equipment…

PRODUCT DESCRIPTION NC-COR OC corrosion inhibitor is a water-dispersible, filming amine. It forms a protective film on all metal surfaces, helping to prevent corrosion attack from oxygen, carbon dioxide and hydrogen sulfide. NC-COR OC is designed to be used in freshwater dispersed systems and packer fluids. PHYSICAL & CHEMICAL PROPERTIES Appearance Yellow to amber liquid pH 9.0 Bulk Density 960 - 1010 kg/m3 Boiling Point 100°C Melting Point < -10°C Flash Point 44°C Solubility Soluble in water APPLICATION NC-COR OC can be used in any freshwater (low-calcium) dispersed system. It should be added directly to the mud system or through…

PRODUCT DESCRIPTION NC-COR HS corrosion inhibitor is a modified, amine-type additive designed to protect all oilfield tubular goods. It helps prevent general corrosion attack on casing, tubing and downhole tools in contact with clear completion brines. PHYSICAL & CHEMICAL PROPERTIES Appearance Dark brown liquid pH 9.5 (1% aqueous solution) Specific Gravity 1.04 - 1.08g/cm3 Boiling Point 248.8°C Solubility Soluble in water APPLICATION NC-COR HS controls corrosion of tubing and casing strings when used in workover or packer brines, including sodium chloride, calcium chloride, sodium bromide and calcium bromide. NC-COR HS is designed for use in clear brines but may be…

PRODUCT DESCRIPTION NC-COR C corrosion inhibitor is an all-purpose, water-soluble organic phosphorous compound. It is a passivating type of inhibitor which forms a protective film on metal surfaces to guard against corrosion attack. PHYSICAL & CHEMICAL PROPERTIES Appearance Amber liquid pH 7.0 - 8.0 (5% aqueous solution) Specific Gravity 1.015g/cm3 Flash Point 55°C Molecular Mass 1.015g/cm3 Solubility Soluble in water APPLICATION NC-COR C is effective at relatively low concentrations in all water-based muds. It has proven to be particularly useful in reducing oxygen corrosion in aerated muds; low-solids, non-dispersed, polymer muds; and potassium muds. RECOMMENDED TREATMENT The recommended initial treatment…