Agents for inhibiting the corrosion of iron in acid solution

Patent · Tue Nov 20 04:00:00 EST 1973

OSTI ID:6620599

Heiss, L; Iille, M

Corrosion inhibitors are used in the surface cleaning of iron and iron alloys, where, in general, aqueous acids are employed for the removal of rust, scales, and the like. The action of the acid is to be controlled in such a manner that the surface impurities are attached and the material itself remains unaffected. To reach this goal, special inhibitors are used. Or, corrosion inhibitors are used in acid solutions for stimulation production in oil and gas wells, to protect the steel equipment in the wells such as casing, tubing, etc. New corrosion inhibitors are provided which permits a better protection of iron and iron alloys in acid solution. The invention furthermore relates to the use of these new inhibitors in the known industrial processes. (8 claims)

• Assignee: Farbwerke Lucius and Bruning
• Patent Number(s): US 3773675
• OSTI ID: 6620599
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ACIDIZATION
ALLOYS
CLEANING
CORROSION INHIBITORS
CORROSION PROTECTION
DESCALING
IRON ALLOYS
OIL WELLS
SURFACE CLEANING
SURFACE FINISHING
TUBES
WELL CASINGS
WELLS