Oilfield Glossary
Oilfield Glossary
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zinc bromide

1. n. [Drilling Fluids]
A acidic salt, ZnBr2, which is used to prepare dense, clear (solids-free) brine for well completion and workover operations. The density of saturated zinc bromide is approximately 20 lbm/gal, but its pH is low and can cause acidic corrosion and handling problems. Its HSE problems must be weighed carefully against its advantages. Zinc bromide can be used to scavenge sulfides from a mud system in cases where the addition of that salt will not cause detrimental effects on mud performance, such as in a saltwater mud.