ABSTRACT
The Base de Operações Geólogo Pedro de Moura (BOGPM) is today a world reference of harmonious coexistence between the activity of exploration and production of oil and gas and the environment. Located in the state of Amazonas, more specifically in the municipality of Coari, it produces high quality oil (49º API), the lightest among the processed in the Brazilian refineries. This unit has been showing a high level of corrosion in the Piping System (STU-85) responsible for the transportation of produced waters from threephase horizontal separators (SG). It is known that the composition of the produced waters depends strongly on the oil field. This work aims to present a case study that was observed in the process of inspection and periodic maintenance, aiming to correlate the factors responsible for corrosion that were observed by the maintenance team. It was verified the intrinsic relationship of the corrosion morphology in the structural material of the aforementioned pipeline with the components present in the analysis of the produced waters. The corrosion morphology was mainly localized and shown in the regions of welds and curves. In the straight sections of the pipe, the corrosion was alveolar and located in the inferior internal generatrix. The analysis of the produced water showed high levels of chloride-based salts, sulfur-based components and heavy metals. According to the literature, such components favor the corrosive process.
Keywords
BOPGM; corrosion; produced waters; pipes; corrosion morphology
