Development of Novel Nanopolymers and Nanofibers as Iron Sulfide Scale Inhibitors in Oil Production

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Hydrogen sulfide is a common contaminant in the oil and gas industry as well as in the paper industry. The**reactive nature of the hydrogen sulfide gas causes accumulation of iron sulfide scale. Mineral scale formation is**a serious and expensive problem in oil and gas production. Iron sulfide scale formation on the inner surfaces of**the pipeline is a serious flow assurance problem faced by sour crude oil well producers, which is a major**challenge for conventional oil producers in Canada. Commonly, mechanical and chemical methods are used to**mitigate FeS scale. Mechanical scaling removal is only feasible in easily accessible areas. Therefore, chemical**treatment is necessary to prevent, control and reduce formed FeS deposits. Acidizing treatment using**hydrochloric acid is the most common procedure utilized for FeS deposits removal. However, the generation**of H2S by-product, the potential to accelerate corrosion in the system and its inefficiency to more stable forms**of iron sulfides such as pyrite, limits its application. Other treatment uses iron chelators. But, iron chelators**has poor selectivity towards preventing iron sulfide scaling formation, which leads the applications to become**economically unfeasible. Therefore, there is a current industrial product development demand for innovative**ways to efficiently control iron sulfide scaling on high brine systems. Therefore, in the proposal, we propose**the development of innovation highly functional polymer materials (hyperbranched polymers and nanofibers)**for the removal of the iron sulfide deposits.