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Previous issue date: 2015-05-29 / Uma das diversas t?cnicas aplicadas aos processos de produ??o de petr?leo ? a eleva??o
artificial, que utiliza equipamentos a fim de reduzir a press?o de fluxo no fundo do
po?o, promovendo um diferencial de press?o, resultando em um aumento de vaz?o. A
escolha do m?todo de eleva??o artificial depende de uma an?lise de diversos fatores,
como custos iniciais de instala??o, manuten??o e condi??es existentes no campo
produtor. O m?todo de Bombeio Centr?fugo Submerso (BCS) mostra-se bastante
eficiente quando a finalidade ? produzir altas vaz?es de l?quido, tanto em ambientes
terrestres como mar?timos, em condi??es adversas de temperatura e na presen?a de
fluidos viscosos. Por defini??o, o BCS ? um m?todo de eleva??o artificial em que um
motor el?trico de subsuperf?cie transforma a energia el?trica em mec?nica para acionar
uma bomba centr?fuga de m?ltiplos est?gios sobrepostos, formada por um impelidor
(rotor) e um difusor (estator). A bomba converte a energia mec?nica do motor em
energia cin?tica sob a forma de velocidade, elevando o fluido ? superf?cie. O objetivo
desse trabalho ? a implementa??o do m?todo de otimiza??o dos poliedros flex?veis,
conhecido como M?todo Simplex Modificado (MSM), aplicado ao estudo da influ?ncia
na modifica??o dos par?metros de entrada e sa?da no canal do impelidor de uma bomba
centr?fuga de um sistema BCS. Na utiliza??o do m?todo de otimiza??o modificando os
par?metros angulares da bomba, os dados resultantes aplicados nas simula??es
permitiram a obten??o de valores otimizados do Head (altura de eleva??o), uma
efici?ncia sem perdas e a pot?ncia com resultados diferenciados. / One of several techniques applied to production processes oil is the artificial lift, using
equipment in order to reduce the bottom hole pressure, providing a pressure differential,
resulting in a flow increase. The choice of the artificial lift method depends on a
detailed analysis of the some factors, such as initial costs of installation, maintenance,
and the existing conditions in the producing field. The Electrical Submersible Pumping
method (ESP) appears to be quite efficient when the objective is to produce high liquid
flow rates in both onshore and offshore environments, in adverse conditions of
temperature and in the presence of viscous fluids. By definition, ESP is a method of
artificial lift in which a subsurface electric motor transforms electrical into mechanical
energy to trigger a centrifugal pump of multiple stages, composed of a rotating impeller
(rotor) and a stationary diffuser (stator). The pump converts the mechanical energy of
the engine into kinetic energy in the form of velocity, which pushes the fluid to the
surface. The objective of this work is to implement the optimization method of the
flexible polyhedron, known as Modified Simplex Method (MSM) applied to the study of
the influence of the modification of the input and output parameters of the centrifugal
pump impeller in the channel of a system ESP. In the use of the optimization method by
changing the angular parameters of the pump, the resultant data applied to the
simulations allowed to obtain optimized values of the Head (lift height), lossless
efficiency and the power with differentiated results.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20056 |
| Date | 29 May 2015 |
| Creators | Andrade, Ana Carla Costa |
| Contributors | 42046637100, http://lattes.cnpq.br/0477027244297797, Maitelli, Carla Wilza Souza de Paula, 72255501449, http://lattes.cnpq.br/2441911467149645, Ara?jo, F?bio Meneghetti Ugulino de, 82675090468, http://lattes.cnpq.br/5473196176458886, Gabriel Filho, Oscar, 11376040697, http://lattes.cnpq.br/4171033998524192, Maitelli, Andr? Laurindo |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM CI?NCIA E ENGENHARIA DE PETR?LEO, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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