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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Projeto de um sistema emulador de escoamentos e vaso de separa??o prim?ria

Vieira, Pl?nio Alto? Costa 02 September 2009 (has links)
Made available in DSpace on 2014-12-17T14:55:38Z (GMT). No. of bitstreams: 1 PlinioACV.pdf: 2673165 bytes, checksum: 041961f375616fef1afc4244b3a44c02 (MD5) Previous issue date: 2009-09-02 / The purpose of this study was to develop a pilot plant which the main goal is to emulate a flow peak pressure in a separation vessel. Effect similar that is caused by the production in a slug flow in production wells equipped with the artificial lift method plunger lift. The motivation for its development was the need to test in a plant on a smaller scale, a new technique developed to estimate the gas flow in production wells equipped with plunger lift. To develop it, studies about multiphase flow effects, operation methods of artificial lift in plunger lift wells, industrial instrumentation elements, control valves, vessel sizing separators and measurement systems were done. The methodology used was the definition of process flowcharts, its parameters and how the effects needed would be generated for the success of the experiments. Therefore, control valves, the design and construction of vessels and the acquisition of other equipment used were defined. One of the vessels works as a tank of compressed air that is connected to the separation vessel and generates pulses of gas controlled by a on/off valve. With the emulator system ready, several control experiments were made, being the control of peak flow pressure generation and the flow meter the main experiments, this way, it was confirmed the efficiency of the plant usage in the problem that motivated it. It was concluded that the system is capable of generate effects of flow with peak pressure in a primary separation vessel. Studies such as the estimation of gas flow at the exit of the vessel and several academic studies can be done and tested on a smaller scale and then applied in real plants, avoiding waste of time and money. / A proposta desse trabalho foi desenvolver uma planta-piloto com o objetivo principal de emular picos de press?o de escoamentos num vaso de separa??o. Efeito semelhante ao provocado pela produ??o em forma de golfadas em po?os de produ??o equipados com o m?todo de eleva??o artificial plunger lift. A motiva??o para o desenvolvimento do mesmo foi a necessidade de se testar, numa planta em escala menor, uma nova t?cnica desenvolvida para a estima??o da vaz?o de g?s em po?os produtores equipados com plunger lift. Para seu desenvolvimento foram realizados estudos sobre efeitos dos escoamentos multif?sicos, funcionamento de m?todos de eleva??o artificial em po?os de plunger lift, dos elementos de instrumenta??o industrial, v?lvulas de controle, dimensionamento de vasos separadores e sistemas de medi??o. A metodologia utilizada foi a defini??o dos fluxogramas do processo, seus par?metros e como seriam gerados os efeitos necess?rios para o sucesso dos experimentos. Assim, foram definidas as v?lvulas de controle, o dimensionamento e constru??o dos vasos e a aquisi??o dos demais equipamentos utilizados. Um dos vasos funciona como reservat?rio de ar comprimido que, conectado ao vaso de separa??o, gera pulsos de g?s controlados por uma v?lvula on/off. Com o sistema emulador pronto, foram realizadas diversas experi?ncias de controle, sendo o controle de press?o com gera??o de picos e medi??o de vaz?o a principal experi?ncia, onde se comprovou a efici?ncia da utiliza??o da planta no problema que a motivou. Concluiu-se que o sistema ? capaz de gerar efeitos de escoamentos com picos de press?o num vaso de separa??o prim?ria. Estudos como a estima??o de vaz?o de g?s na saida do vaso e diversos estudos acad?micos poder?o ser feitos e testados numa escala menor sendo aplicados em seguida nas plantas reais, evitando perda de tempo e dinheiro

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