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AISI 317L stainless steel is a material that is used in many industries, including the manufacturing of equipment and components applied in the oil & gas industry, which are subject to acidification or acid stimulation. Acid stimulation consists, essentially, of hydrochloric acid injection of 5 to 28% (% volume) in oil and gas wells to stimulate or restore the permeability of the reservoir rock, which increases the production of oil and gas. To avoid or to reduce the attack of hydrochloric acid on stainless steel AISI 317L, the corrosion inhibitor, propargyl alcohol base, is added. Thus, the present paper aims to analyze AISI 317L stainless steel’s corrosion resistance using gravimetric (mass loss) and electrochemical (polarization) laboratory tests with and without the addition of 1% (volume) propargyl alcohol in hydrochloric acid solutions at concentrations of 5 and 10% (% volume) at temperatures of 25°C, 40°C and 55°C. The laboratory results are very promising in protecting the AISI 317L stainless steel in hydrochloric acid solutions.

Performance of Stainless Steel AISI 317L in Hydrochloric Acid with the Addition of Propargyl Alcohol