The dynamics involved in the process of oil extraction in the offshore environment involves pipeline meshes interconnecting wells to platforms and these to relief ships, allowing the productive flow realized. As an offender in this marine environment, salinity characteristic of water is a source of corrosion in the pipelines that make up the underwater production chain. The present work sought to treat the specific case of a submarine pipeline that presents severe corrosivity that could cause serious environmental damages, as well as the impact of the image of the organization responsible for oil extraction. Based on this systematics, the objective was to identify the responsible causes for undesired occurrence, to elaborate and execute a plan of action that avoids recurrence, with subsequent verification of efficacy and standardization. The obtained results met the proposed objectives and it was possible to determine that the factor generating the undesired event was the inadequate dosage of demulsifier in the treatment of the oil produced and with the standardization of the operational parameters of the process plant. There was success in eliminating the problem with the maintenance of the knowledge obtained to maintain the operation of the platform within the issues considered safe in relation to the environment, people and assets.