Development and introduction of new effective inhibitors of the acid corrosion of metals

Miskidzh'yan, S. P.; Korsunskaya, A. L.; Kirilyuk, S. S.; Titakova, I. K.; Lavrishin, B. N.

doi:10.1007/bf00723352

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1988

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“…Ayers and Hackerman 9 observed a similar effect on iron, while Miskidzh'yan et at. 10 found that the effectiveness of several quarternary ammonium salts increased with temperature on one steel but decreased on another. On J55 steel, the percent protection decreases with increasing [HCl] at low temperature (as expected), while at high temperatures, DDPB is more effective in 5.7 M acid than in 0.27 M HCl.…”

Section: Resultsmentioning

confidence: 97%

Mechanisms of Corrosion Inhibitors Used in Acidizing Wells

Frenier

Growcock

Lopp

1988

SPE Production Engineering

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Two model compounds, n-dodecylpyridinium bromide (n-DDPB) and l-octyn-3-01, were tested in HCI acid as inhibitors for J55 oilfield steel. This paper describes the kinetic and chemical analyses conducted to arrive at inhibition mechanisms for these model compounds. These studies show that the pyridinium forms a weak bond with the chloride-covered surface and is sensitive to temperature and [HCI]. Octynol, however, chemisorbs and produces a film that contains a reaction product of the acetylenic alcohol. This film is quite insensitive to changes in temperature and [HCI].

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Section: Resultsmentioning

confidence: 97%