Improved acid corrosion inhibitor

Details Improved acid corrosion inhibitor Improved acid corrosion inhibitor

C - Chemistry, Metallurgy

23

F

C23F 11/16 (2006.01) C09K 8/54 (2006.01) C09K 15/06 (2006.01) C09K 15/12 (2006.01) C23F 11/04 (2006.01) C23F 11/12 (2006.01) E21B 43/27 (2006.01)

Patent

CA 2309414

An acid corrosion inhibitor composition is provided for petroleum wells and water wells subjected to stimulation with acid solutions. The inhibitor combines cinnamaldehyde and preferably an organo-sulfur compound. The inhibitor provides a reduced rate of corrosion and fewer instances of pitting than inhibitors which include cinnamaldehyde alone. The inhibitor does not suffer from the well-known oil field aldehyde/polyacrylamide crosslinking incompatibility. The enhanced performance by the inhibitor of the present invention is provided by a synergistic action between the cinnamaldehyde and the organo-sulfur compound.

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