Sodium Bromide

Definition - What does Sodium Bromide mean?

Sodium Bromide is an inorganic compound that is used as a source of bromide ion and as a catalyst in TEMPO-mediated oxidation reactions. It comprises of sodium and bromide ions and has the chemical formula NaBr. It is an odorless white crystal or crystalline powder which resembles sodium chloride. This compound is widely used in many industries such as, the pharmaceutical industry, disinfectant manufacturing industry and in the petroleum Industry as a clear brine fluid.

Petropedia explains Sodium Bromide

Sodium bromide is mixed with water in oilfield applications and converted into a single salt clear brine fluid which can be used as a drilling fluid during drilling applications. This clear brine fluid can be used in densities ranging from 8.4 lb/gal to 12.7 lb/gal.

There are many types of clear brine fluids available as a drilling fluids, however, pure sodium bromide brine is used for certain situations and conditions only when the formation liquids consist of high levels of carbonate or sulfate molecules that can precipitate with calcium ions. Thus, in such mud conditions, brine that consists of chloride or potassium ions will not serve the purpose and only sodium is ideal.

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