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Development of A Combined Corrosion and Scale Inhibitor for Subsea Multiphase Oil Field in Brazil

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This production asset located in the deep-water offshore Brazil, producing heavy oil in the range of 16 to 24 oAPI. Mudline caisson separators with electrical submersible pumps (ESPs) are used to process fluids from multiple wells and boost them to the receiving floating production, storage, and offloading (FPSO) vessel(1). There are significant flow-assurance and corrosion challenges in operating the asset. One of the challenges is the production fields have limited subsea umbilical, necessitate the use of
multifunctional products to maintain the field’s integrity and mitigate any flow assurance and scale issues.

Product Number: 51323-18810-SG
Author: Larry Chen, Nihal Obeyesekere, Aline Kina, Lisa Greaney
Publication Date: 2023
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Estimated about ~3 million bbls/day, the Brazil oil field plays a significant part in the South American unconventional thriving, especially in current global oil supply constrains due to Ukraine crise. The oil field located in subsea Latin America, produces a large amount of heavy oil in the range of 16 to 24O API. The water composition is characterized with high chloride and high total dissolved solids (TDS), posing integrity and flow-assurance challenges to the operating asset. To mitigate the corrosion and scale
reparations in deep-water environment through limited injection points, a combined corrosion and scale inhibitor was demanded.

Estimated about ~3 million bbls/day, the Brazil oil field plays a significant part in the South American unconventional thriving, especially in current global oil supply constrains due to Ukraine crise. The oil field located in subsea Latin America, produces a large amount of heavy oil in the range of 16 to 24O API. The water composition is characterized with high chloride and high total dissolved solids (TDS), posing integrity and flow-assurance challenges to the operating asset. To mitigate the corrosion and scale
reparations in deep-water environment through limited injection points, a combined corrosion and scale inhibitor was demanded.

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