Abstract: In oil and gas industries pipelines are the most cost-effective means of transporting oil and gas in both onshore and offshore production. During drilling operations, acidic fluids’ flow and the crude oil which contains sulfur and hydrogen sulfide can induce corrosion in these pipelines. Carbon steels are still the materials used for the construction of these pipelines. Structural stresses and the high or low temperature are also the contributing factors for corroding the steel. Corrosion inhibitors play an important role in prevention of corrosion in pipelines from internal corrosion. With the advent of green chemistry and concern for the marine environment has prompted the researchers to develop the environment friendly inhibitors. In this regard many medicinal plants have been used as corrosion inhibitors for carbon steel. In this paper we describe the investigations on the pre-screening of aqueous extracts of Henna leaves for the corrosion prevention of mild steel in a simulated environment using synthetic sea water by weight loss studies in the presence and absence of H2S. The plant extract (PE) exhibits good corrosion efficiency, biodegradable, non-toxic and has low bioaccumulation.

Keywords: Natural products, green corrosion inhibitors, bioaccumulation, Biodegradation, mild steel

| DOI: 10.17148/IARJSET.2022.9255