Acid based micro-emulsions

Details Acid based micro-emulsions Acid based micro-emulsions

C - Chemistry, Metallurgy

09

K

C09K 3/00 (2006.01) C09K 8/52 (2006.01) C09K 8/524 (2006.01) E21B 21/00 (2006.01)

Patent

CA 2394858

Acid based micro-emulsions are disclosed comprising water, an acid blend, an anionic surfactant, a nonionic sur-factant, a co-solvent, a solvent and an oxidizer. The micro-emulsions have particular utility in cleaning oil sludges and drilling mud residues from well cuttings, well formations and down hole and surface oil well drilling and production equipment.

L'invention concerne des micro-émulsions à base d'acides, comprenant de l'eau, un mélange d'acides, un tensioactif anionique, un tensioactif non ionique, un co-solvant, un solvant et un oxydant. Ces micro-émulsions sont notamment utiles dans l'élimination de boues d'hydrocarbures et de résidus de boues de forage, à partir d'instruments de découpe de puits, et à partir de matériel de production et de forage de puits, de surface ou de fond de trou.

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