Sistema de aquisição de dados para estudos de transiente de pressão e detecção de vazamentos em oleodutos

• Ano de defesa: 2012
• Autor(a) principal: Araujo, Gabriell John Medeiros de
• Orientador(a): Maitelli, André Laurindo
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio Grande do Norte
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciência e Engenharia do Petróleo
• Departamento: Pesquisa e Desenvolvimento em Ciência e Engenharia de Petróleo
• País: BR
• Palavras-chave em Português: detecção de vazamentos; sistema de aquisição de dados; arquitetura SCADA; processamento digital de sinais; transiente de pressão
• Palavras-chave em Inglês: leak detection; data acquisition system; SCADA architecture; digital signal; processing; pressure transient
• Área do conhecimento CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA
• Link de acesso: https://repositorio.ufrn.br/jspui/handle/123456789/18536

In February 2011, the National Agency of Petroleum, Natural Gas and Biofuels (ANP) has published a new Technical Rules for Handling Land Pipeline Petroleum and Natural Gas Derivatives (RTDT). Among other things, the RTDT made compulsory the use of monitoring systems and leak detection in all onshore pipelines in the country. This document provides a study on the method for detection of transient pressure. The study was conducted on a industrial duct 16" diameter and 9.8 km long. The pipeline is fully pressurized and carries a multiphase mixture of crude oil, water and natural gas. For the study, was built an infrastructure for data acquisition and validation of detection algorithms. The system was designed with SCADA architecture. Piezoresistive sensors were installed at the ends of the duct and Digital Signal Processors (DSPs) were used for sampling, storage and processing of data. The study was based on simulations of leaks through valves and search for patterns that characterize the occurrence of such phenomena