Emulsifier for oil-based drilling fluids
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United States of America Patent
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Issued Date -
Jul 10, 2003
app pub date -
Nov 13, 2001
filing date -
Nov 13, 2001
priority date (Note) -
Abandoned
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Abstract
A composition comprising a water-in-oil emulsion fluid for use in the drilling, completion or workover of a subterranean well is disclosed, wherein the emulsion fluid comprises: A) a base comprising at least one liquid hydrocarbon; B) an aqueous phase; and C) an emulsifier comprising at least one amide prepared by reacting at least one fatty amine with at least one polycarboxylic acid.
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