Role of the triple bond in acid corrosion inhibition

Conference · Thu Jan 01 04:00:00 UTC 1970 · Proc. NACE Conf.; (United States)

OSTI ID:5001300

Tedeschi, R J; Natali, P W; McMahon, H C

It is now over 30 yr since the original discovery was made that acetylenic compounds are effective in inhibiting the corrosion of iron in acid media. Since then, the industrial practice of oil-well acidizing has become well-established, with key acetylenic compounds such as propargyl alcohol, hexynol, and ethyl octynol assuming increasingly important roles. New and more stable triple-bonded compounds properly formulated and synergized with nitrogen compounds are expected to be used more extensively as temperature, stability, and performance requirements increase. An evaluation is made of the structural features which enhance or limit the corrosion performance of a given acetylenic. New data involving mixtures of acetylenics, hydrogen-bonded complexes, and the use of new nitrogen synergists are covered also. Tabular data at 200/sup 0/F approximate the more strenuous conditions of an oil-well acidizing job using N-80 tubing. The performance of such inhibitors as hexynol, ethyl octynol or OW-1 is improved by the use of nitrogen synergists, such as ethylenediamine (EDA), DMF, urea or ammonia. A second tabular data at 250/sup 0/F approximate conditions in deep holes under pressure. (15 refs.)

• Research Organization: Airco Chemicals and Plastics
• OSTI ID: 5001300
• Report Number(s): CONF-690304-
• Conference Information: Journal Name: Proc. NACE Conf.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ACIDIZATION
ALKYNES
CORROSION INHIBITORS
CORROSION RESISTANCE
ELEMENTS
GEOLOGIC STRUCTURES
HYDROCARBONS
IRON
METALS
OIL WELLS
ORGANIC COMPOUNDS
PERFORMANCE
PIPES
TEMPERATURE EFFECTS
TRANSITION ELEMENTS
WELLS