conference paper · SPE Nigeria Annual International Conference and Exhibition
Corrosion in carbon steel pipelines operating in hydrogen sulphide environments poses severe operational hazards and economic costs in the oil and gas industry. Although conventional chemical inhibitors mitigate damage, they typically rely on toxic formulations that threaten the environment. To address this, extracts derived from organic waste, specifically orange peel and sugarcane bagasse, were assessed as sustainable alternatives. Bioactive compounds were extracted from both materials and tested using gravimetric, thermometric, and scanning electron microscopy techniques. Orange peel extract demonstrated the highest performance, achieving a 95.9 percent inhibition efficiency under optimal conditions. A hybrid mixture of both extracts reached 93.6 percent efficiency, outperforming sugarcane bagasse alone at 87.2 percent. Microstructural analysis confirmed marked reductions in surface degradation on steel treated with these extracts, confirming their protective action against sour corrosion.
Hydrogen sulphide corrosion in oil and gas pipelines causes severe infrastructure failures and substantial financial losses. Conventional chemical treatments often present environmental risks due to toxic ingredients. Demonstrating that agricultural waste extracts can effectively protect carbon steel offers an eco-friendly pathway to maintain industrial pipeline integrity while supporting circular waste use and lowering environmental toxicity.
This research targets corrosion management for carbon steel pipelines in the oil and gas industry, particularly in hydrogen sulphide environments. Potential users include pipeline operators and industrial chemical suppliers seeking non-toxic, bio-based inhibitor formulations. The technology is at an early research stage, having demonstrated high laboratory-scale efficiency through gravimetric, thermometric, and microscopic testing, though further optimisation of hybrid mixtures and mechanistic studies are required before operational deployment.
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Abstract Corrosion in carbon steel pipelines, particularly in hydrogen sulfide (H2S)-rich environments, poses a significant challenge in the oil and gas industry, leading to structural failures and economic losses. Conventional corrosion inhibitors, though effective, often contain toxic substances that pose environmental hazards. This study explores the potential of organic waste-derived inhibitors, specifically orange-peel extract (OPE) and sugarcane bagasse extract (SBE), as eco-friendly alternatives for mitigating H2S-induced corrosion. The research involved the extraction and characterization of bioactive compounds from OPE and SBE, followed by Gravimetric, Thermometric, and Scanning Electron Microscopy (SEM) analyses to assess their corrosion inhibition efficiencies. The results showed that OPE exhibited the highest inhibition efficiency with 95.9% inhibition efficiency at optimal conditions, while the hybrid formulation (OPE + SBE) demonstrated 93.6% efficiency, performing better than SBE alone, which had with about 87.2% inhibition efficiency, but less than OPE individually. Microstructural analysis via SEM revealed that inhibitor-treated steel samples showed reduced surface degradation compared to untreated samples, confirming the protective effect of the organic extracts. The findings highlight the potential of plant-based inhibitors as sustainable, cost-effective corrosion control solutions. However, further research is required to optimize hybrid formulations and fully understand the adsorption mechanisms involved. This study contributes to the advancement of green corrosion management strategies, reducing reliance on synthetic inhibitors and promoting environmental sustainability.
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DOI: 10.2118/235211-ms
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