High density aqueous well fluids
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United States of America Patent
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Sep 1, 2020
Grant Date -
Jun 1, 2017
app pub date -
Feb 9, 2017
filing date -
Jul 23, 2015
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Abstract
This invention provides zinc-free aqueous brine compositions. These zinc-free aqueous brine compositions have a density of about 14.3 pounds per gallon to about 15.8 pounds per gallon, and a true crystallization temperature of about 20° F. or less, and comprise water and two or more inorganic bromide salts, where the inorganic bromide salts include calcium bromide and cesium bromide. Processes for forming these zinc-free aqueous brine compositions are also provided.
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