Oilfield Glossary
Oilfield Glossary
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zinc carbonate

1. n. [Drilling Fluids]
A neutral zinc salt, ZnCO3, which can be used as a sulfide scavenger in water-base muds. Zinc carbonate is less soluble than zinc basic carbonate and perhaps slower to react with sulfide ions. Treatment level is about 0.1 lbm/bbl per 50 mg/L sulfide ion (determined by Garrett Gas Train sulfide analysis of the filtrate).