Organic compounds

Details Organic compounds Organic compounds

E - Fixed Constructions

21

B

31/30

E21B 43/22 (2006.01) C09K 8/528 (2006.01) E21B 37/06 (2006.01) E21B 37/08 (2006.01) E21B 43/25 (2006.01)

Patent

CA 1281895

Abstract The invention relates to a process for cleaning aqueous completion or packer fluids and to a method for cleaning wells. The process comprises adding to a contaminated completion or packer fluid a composition containing: (a) a compound of formula I Image (I) (b) a compound of formula II Image (II) (c) a compound of formula III R-COO-X2-N(R7)2 (III) (d) a compound of formula IV R -N? (R9)3 A? (IV) (e) a compound of formula V R10-CO-NR11 ? X4-NR11-]n'-R11 (V)

527453

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