Mil and miro diagrams for risk-based positioning of drilling rigs with dynamic positioning system

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorPetrobras-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMaturana, Marcos Coelho-
Autor(es): dc.creatorSouza, Victor Rafael-
Autor(es): dc.creatorMesa, Valentina Clavijo-
Autor(es): dc.creatorMartins, Marcelo Ramos-
Autor(es): dc.creatorOshiro, Anderson Takehiro-
Autor(es): dc.creatorSchleder, Adriana Miralles-
Data de aceite: dc.date.accessioned2025-08-21T22:23:57Z-
Data de disponibilização: dc.date.available2025-08-21T22:23:57Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/228890-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/228890-
Descrição: dc.descriptionCurrently, most offshore oil exploration operations are performed by Dynamically Positioned (DP) units; in Brazil, the use of these units is traditional in drilling operations (DP drilling rigs). The advent of DP systems, which allow the vessel to maintain a certain position without the need for anchor lines, has brought great flexibility to the oil field; however, usually in drilling areas, there are a large number of operations being performed simultaneously and subject to weather conditions and a failure of the DP system may cause these vessels to drift, which may occasionally result in a collision with other field equipment or vessels, causing material, personal and environmental damage. In this context, it is necessary to analyze what would be the best positioning points for these units according to the configuration of potential obstacles present in the area (such as risers, anchor systems and floating production systems), the characteristics of the DP unit and the expected environmental conditions. It is vital to know the risk of collision associated with the positioning of these units. The risk of collision will depend mainly on the meteo-oceanographic variables of the operating region, the hydrodynamic characteristics of the unit, the DP system reliability and its repair time, and the distribution of obstacles in the area. The objective of the ongoing research is the development of a methodology to define the risk associated with the positioning of the DP units, through a statistical method and a validated drift mathematical model under the influence of environmental agents. The proposed methodology allows us to demonstrate compliance with a widely accepted RAC (Risk Acceptance Criterion). The developed methodology proposes the use of two instruments: Location Iso-Probability Maps (MIL) and Operational Iso-Risk Maps (MIRO), to synthesize the information to the decision making about the operation of the DP units at a specific location, considering the overall collision risk (at MIRO) and the probability of the rig being at a specific location (at MIL).-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionAnalysis Evaluation and Risk Management Laboratory (LabRisco) Naval Architecture and Ocean Engineering Department University of São Paulo-
Descrição: dc.descriptionPetrobras-
Descrição: dc.descriptionDepartment of Industrial Engineering Sao Paulo State University Campus Itapeva Analysis Evaluation and Risk Management Laboratory (LabRisco)-
Descrição: dc.descriptionDepartment of Industrial Engineering Sao Paulo State University Campus Itapeva Analysis Evaluation and Risk Management Laboratory (LabRisco)-
Descrição: dc.descriptionCNPq: 304533/2016-5-
Idioma: dc.languageen-
Relação: dc.relationProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDP system-
Palavras-chave: dc.subjectMIL-
Palavras-chave: dc.subjectMIRO-
Palavras-chave: dc.subjectRisk analysis-
Título: dc.titleMil and miro diagrams for risk-based positioning of drilling rigs with dynamic positioning system-
Tipo de arquivo: dc.typeaula digital-
Aparece nas coleções:Repositório Institucional - Unesp

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