Mutual Solvent for Downhole Use
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United States of America Patent
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Issued Date -
Jan 8, 2015
app pub date -
Jul 3, 2013
filing date -
Jul 3, 2013
priority date (Note) -
Abandoned
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Abstract
A mutual solvent for use in oil and gas well operations comprising an ethoxylated alcohol surfactant, having a six carbon backbone chained to three ethylene oxide groups with a hydrophilic lipophilic balance between 11 and 12 but more preferably of about 11.3. Such a mutual solvent may be used in an oil and gas well as a spacer system, in acid treatments to remove the spent acid, and in solvent systems to remove asphaltenic or paraffinic compounds.
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