Study of the influence of certain inhibitors on the tensile strength of steel during its corrosion in a system of hydrocarbons and electrolytes

Journal Article · Sat Jan 01 04:00:00 EST 1966 · Za Tekh. Progr.; (United States)

OSTI ID:6092336

Balezin, S A; Negreyev, V F; Mamedov, I A; Mamedova, I F

A study was made of the tensile strength of U7A steel wire (diam. 0.7 mm) in a system consisting of hydrocarbons (benzine, kerosine, or petroleum) and 0.1 N HC1 with and without inhibitors. The system studied approximated the conditions of steel corrosion in gas condensate wells. It was found that the water-soluble inhibitors Katapins and PB 8/2 at 20$C in systems consisting of hydrocarbons and acidic aqueous solutions decrease the corrosion rate by about 50% and less. For this reason, they are not sufficiently effective inhibitors. However, as the temperature of the medium rises to 50$C, the effectiveness of Katapin increases markedly. This is due to the fact that in the presence of movement, the stream of water washes the protective film off the steel surface, but as the temperature rises, the inhibitor adheres more strongly to the metal surface. Hydrocarbon-soluble inhibitors (Ca salt of SB-3, Pikon, alkylphenoxyacetic acid) inhibit corrosion very effectively at 20 and 50$C in a stream of liquid.

• OSTI ID: 6092336
• Journal Information: Za Tekh. Progr.; (United States), Journal Name: Za Tekh. Progr.; (United States) Vol. 12
• Country of Publication: United States
• Language: Russian

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CORROSION INHIBITORS
CORROSION RESISTANCE
ELECTROLYTES
ENERGY SOURCES
EVALUATION
FOSSIL FUELS
FUELS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
KEROSENE
LIGROIN
LIQUID FUELS
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
PETROLEUM
PETROLEUM PRODUCTS
STEELS
TENSILE PROPERTIES