Environmentally improved acid corrosion inhibitor

Details Environmentally improved acid corrosion inhibitor Environmentally improved acid corrosion inhibitor

1998-03-24

1998-12-29

Wu, Shean C.

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

507239, 507246, 507260, 507261, 507265, 507266, 507267, 507268, 106 1441, 116902, 116113, 252388, 25238953, 25238954, 252392, 252396, C23F 1110, C09K 1504, E21B 4102

Patent

active

058541802

ABSTRACT:
Corrosion is inhibited in hydrochloric acid solutions used to acidize wells, by adding to the solutions a corrosion inhibiting composition comprising cinnamaldehyde or a substituted cinnamaldehyde together with a reaction product of a C.sub.3-6 ketone such as acetophenone, thiourea or a related compound, formaldehyde and hydrochloric acid.

REFERENCES:
patent: 3077454 (1963-02-01), Monroe et al.
patent: 3514410 (1970-05-01), Engle et al.
patent: 4823874 (1989-04-01), Ford
patent: 5013483 (1991-05-01), Frenier et al.
patent: 5120471 (1992-06-01), Jasinski et al.
patent: 5366643 (1994-11-01), Walker
patent: 5591381 (1997-01-01), Walker

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