Avner Ostrovski Sauberlich - Academia.edu (original) (raw)

Papers by Avner Ostrovski Sauberlich

Research paper thumbnail of Multi-Electrode Capacitive and Inductive Sensing Applied to Level Measurement of Multiphase Fluids

Proceedings, Nov 14, 2019

Multiphase gravity separators are widely used in the petroleum industry to separate the produced ... more Multiphase gravity separators are widely used in the petroleum industry to separate the produced stream of oil, water and natural gas into pure (single-phase) streams. These equipment work based on the density differences of each fluid which tend to settle into layers when dwelled for some time in the separator. It is fundamental to monitor the levels of these phases inside the vessel, so that this information can be used in control strategies in order to increase the efficiency and safety of the process. In this work, we present a novel multiphase level sensor based on capacitance and inductance measurements of planar multi-electrodes and multi-coils. The sensor is low-cost, fast and does not apply ionizing radiation, being therefore simple to operate. The prototype sensor was constructed in standard printed-circuit board (PCB) technology and highly sensitive capacitance and inductance measurements are acquired with modern integrated circuit devices. Since the capacitive sensor readings depend on the water salinity, we perform simultaneous inductance measurements to compensate for such dependence. We have tested the prototype from two different approaches: varying the water salinity and for different water/oil mixtures. Preliminary results have shown the capability of the sensor to differentiate each one of the produced fluids, i.e., salty water, oil and gas, as well as the interfaces between them. A 16 electrodes capacitiveonly sensor prototype was also built and tested.

Research paper thumbnail of Multi-electrode capacitive and inductive sensing applied to level measurement of multiphase fluids

Proceedings of 6th International Electronic Conference on Sensors and Applications, 2019

Multiphase gravity separators are widely used in the petroleum industry to separate the produced ... more Multiphase gravity separators are widely used in the petroleum industry to separate the produced stream of oil, water and natural gas into pure (single-phase) streams. These equipment work based on the density differences of each fluid which tend to settle into layers when dwelled for some time in the separator. It is fundamental to monitor the levels of these phases inside the vessel, so that this information can be used in control strategies in order to increase the efficiency and safety of the process. In this work, we present a novel multiphase level sensor based on capacitance and inductance measurements of planar multi-electrodes and multi-coils. The sensor is low-cost, fast and does not apply ionizing radiation, being therefore simple to operate. The prototype sensor was constructed in standard printed-circuit board (PCB) technology and highly sensitive capacitance and inductance measurements are acquired with modern integrated circuit devices. Since the capacitive sensor rea...

Research paper thumbnail of Sensor capacitivo multieletrodo para monitoramento de nível em separadores multifásicos

Com a crescente demanda produtiva da indústria petrolífera, faz-se necessário cada vez mais o des... more Com a crescente demanda produtiva da indústria petrolífera, faz-se necessário cada vez mais o desenvolvimento e aperfeiçoamento de sistemas, tecnologias e processos dentro das suas várias etapas. Uma delas, é o processo de separação da mistura de petróleo, água de produção e gás natural provenientes do processo de exploração de poços petrolíferos. Nesta fase, é fundamental realizar o monitoramento dos níveis dos diferentes compostos no interior dos tanques separadores, para que essas informações sirvam como variáveis de entrada no sistema de controle separador garantindo a eficiência e segurança destes equipamentos. Com base nisso, este trabalho tem o objetivo de apresentar estudo, a análise e realização de testes de um sensor capacitivo multieletrodo para monitorar em tempo real o nível dos diferentes fluidos em separadores gravitacionais aplicados na indústria do petróleo. Desse modo, é possível identificar as diferentes substâncias e interfaces presentes no interior de tanques separadores. Além disso, também foram realizados estudos preliminares sobre o uso combinado das técnicas de monitoramento capacitiva e indutiva (de modo que uma metodologia possa suprir as limitações da outra). O protótipo desenvolvido foi testado em recipientes de teste com resultados satisfatórios na medição da altura de misturas multifásicas água-óleo-ar. O protótipo pode ser facilmente instalado em separadores testes e necessitando de aprimoramentos no que tange robustez e operação em ambientes explosivos para que possa ser empregado em aplicações reais.

Research paper thumbnail of Multi-Electrode Capacitive and Inductive Sensing Applied to Level Measurement of Multiphase Fluids

Proceedings, Nov 14, 2019

Multiphase gravity separators are widely used in the petroleum industry to separate the produced ... more Multiphase gravity separators are widely used in the petroleum industry to separate the produced stream of oil, water and natural gas into pure (single-phase) streams. These equipment work based on the density differences of each fluid which tend to settle into layers when dwelled for some time in the separator. It is fundamental to monitor the levels of these phases inside the vessel, so that this information can be used in control strategies in order to increase the efficiency and safety of the process. In this work, we present a novel multiphase level sensor based on capacitance and inductance measurements of planar multi-electrodes and multi-coils. The sensor is low-cost, fast and does not apply ionizing radiation, being therefore simple to operate. The prototype sensor was constructed in standard printed-circuit board (PCB) technology and highly sensitive capacitance and inductance measurements are acquired with modern integrated circuit devices. Since the capacitive sensor readings depend on the water salinity, we perform simultaneous inductance measurements to compensate for such dependence. We have tested the prototype from two different approaches: varying the water salinity and for different water/oil mixtures. Preliminary results have shown the capability of the sensor to differentiate each one of the produced fluids, i.e., salty water, oil and gas, as well as the interfaces between them. A 16 electrodes capacitiveonly sensor prototype was also built and tested.

Research paper thumbnail of Multi-electrode capacitive and inductive sensing applied to level measurement of multiphase fluids

Proceedings of 6th International Electronic Conference on Sensors and Applications, 2019

Multiphase gravity separators are widely used in the petroleum industry to separate the produced ... more Multiphase gravity separators are widely used in the petroleum industry to separate the produced stream of oil, water and natural gas into pure (single-phase) streams. These equipment work based on the density differences of each fluid which tend to settle into layers when dwelled for some time in the separator. It is fundamental to monitor the levels of these phases inside the vessel, so that this information can be used in control strategies in order to increase the efficiency and safety of the process. In this work, we present a novel multiphase level sensor based on capacitance and inductance measurements of planar multi-electrodes and multi-coils. The sensor is low-cost, fast and does not apply ionizing radiation, being therefore simple to operate. The prototype sensor was constructed in standard printed-circuit board (PCB) technology and highly sensitive capacitance and inductance measurements are acquired with modern integrated circuit devices. Since the capacitive sensor rea...

Research paper thumbnail of Sensor capacitivo multieletrodo para monitoramento de nível em separadores multifásicos

Com a crescente demanda produtiva da indústria petrolífera, faz-se necessário cada vez mais o des... more Com a crescente demanda produtiva da indústria petrolífera, faz-se necessário cada vez mais o desenvolvimento e aperfeiçoamento de sistemas, tecnologias e processos dentro das suas várias etapas. Uma delas, é o processo de separação da mistura de petróleo, água de produção e gás natural provenientes do processo de exploração de poços petrolíferos. Nesta fase, é fundamental realizar o monitoramento dos níveis dos diferentes compostos no interior dos tanques separadores, para que essas informações sirvam como variáveis de entrada no sistema de controle separador garantindo a eficiência e segurança destes equipamentos. Com base nisso, este trabalho tem o objetivo de apresentar estudo, a análise e realização de testes de um sensor capacitivo multieletrodo para monitorar em tempo real o nível dos diferentes fluidos em separadores gravitacionais aplicados na indústria do petróleo. Desse modo, é possível identificar as diferentes substâncias e interfaces presentes no interior de tanques separadores. Além disso, também foram realizados estudos preliminares sobre o uso combinado das técnicas de monitoramento capacitiva e indutiva (de modo que uma metodologia possa suprir as limitações da outra). O protótipo desenvolvido foi testado em recipientes de teste com resultados satisfatórios na medição da altura de misturas multifásicas água-óleo-ar. O protótipo pode ser facilmente instalado em separadores testes e necessitando de aprimoramentos no que tange robustez e operação em ambientes explosivos para que possa ser empregado em aplicações reais.