masterThesis
Sistema de aquisição de dados para estudos de transiente de pressão e detecção de vazamentos em oleodutos
Fecha
2012-03-05Registro en:
ARAUJO, Gabriell John Medeiros de. Sistema de aquisição de dados para estudos de transiente de pressão e detecção de vazamentos em oleodutos. 2012. 77 f. Dissertação (Mestrado em Pesquisa e Desenvolvimento em Ciência e Engenharia de Petróleo) - Universidade Federal do Rio Grande do Norte, Natal, 2012.
Autor
Araujo, Gabriell John Medeiros de
Resumen
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