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
|Dark Amber liquid
|Form emulsion with water; Soluble in aromatic solvents
NC-COR S protects steel equipment by absorbing onto surfaces, forming a filming barrier to corrosive conditions. It is recommended to be applied using periodic “slug” or “batch” treatments pumped down the drill pipe.
The recommended treatment is 5- to 15-gal (19- to 56.7- l) slugs of NC-COR S while making up connections or every four hours, and prior to pumping the slug on trips. This slug volume should be selected to be about 1.5 to 2 gal (5.6 to 7.5 l) of NC-COR S for each 1,000 ft (305 m) of drill string.
NC-COR S is available in 55 US gallon (208-l) drums, palletized as 4 drums per pallet.
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