Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo

Detalhes bibliográficos
Autor(a) principal: Costa, Frederico Martins
Data de Publicação: 2016
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRRJ
Texto Completo: https://tede.ufrrj.br/jspui/handle/jspui/1932
Resumo: The process of well cementing is very complex, beyond the fact that cement paste presents high density, different rheology fluids are injected into the annulus, altering downhole pressure due to changes on hydrostatic pressure and frictional losses. Knowing the operational window and assuring downhole pressure inside this constraint is primordial for security and well life cycle purposes. Due to downhole variations caused by the disturbances, the superior (fracture) and inferior window limits can be exceeded. As a result, loss circulation problems (mud penetration into a fracture) or kick (reservoir fluid inflow into the annulus) can disturb the cementing process, leading to serious accidents, financial losses, environmental damage and human losses. In order to represent the most important phenomena of cementing process, an experimental unit was built using on line flow, density and pressure measurements. Downhole pressure control through pumping 8, 11 and 14 ppg (lb/gal) fluids was analyzed under loss circulation and kick phenomena. The tracking of the downhole pressure at the set point, by employing a feedback control loop (PI), was implemented through using the opening index of the choke valve as the manipulated variable.
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spelling Domiciano, M?rcia Peixoto Vega023.611.797-17Domiciano, M?rcia Peixoto VegaMiranda, Cristiane Richard deMartins, Andr? Leibsohn016.265.396-42http://lattes.cnpq.br/9213447649842076Costa, Frederico Martins2017-07-28T17:55:36Z2016-12-27COSTA, Frederico Martins. Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo. 2016. 132 f. Disserta??o (Mestrado em Engenharia Qu?mica, Tecnologia Qu?mica) - Instituto de Tecnologia, Departamento de Engenharia Qu?mica, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2016.https://tede.ufrrj.br/jspui/handle/jspui/1932The process of well cementing is very complex, beyond the fact that cement paste presents high density, different rheology fluids are injected into the annulus, altering downhole pressure due to changes on hydrostatic pressure and frictional losses. Knowing the operational window and assuring downhole pressure inside this constraint is primordial for security and well life cycle purposes. Due to downhole variations caused by the disturbances, the superior (fracture) and inferior window limits can be exceeded. As a result, loss circulation problems (mud penetration into a fracture) or kick (reservoir fluid inflow into the annulus) can disturb the cementing process, leading to serious accidents, financial losses, environmental damage and human losses. In order to represent the most important phenomena of cementing process, an experimental unit was built using on line flow, density and pressure measurements. Downhole pressure control through pumping 8, 11 and 14 ppg (lb/gal) fluids was analyzed under loss circulation and kick phenomena. The tracking of the downhole pressure at the set point, by employing a feedback control loop (PI), was implemented through using the opening index of the choke valve as the manipulated variable.O processo de cimenta??o de po?os ? bastante complexo, al?m da pasta de cimento apresentar elevada densidade e ocorrer o bombeio de fluidos de diferentes reologias, a press?o no fundo do po?o sofre grandes varia??es, devido ? mudan?a na press?o hidrost?tica do po?o e ?s perdas por atrito. Conhecer a janela operacional do po?o e manter a press?o anular de fundo dentro desta ? primordial para a seguran?a e a vida ?til do po?o. Devido ?s varia??es na press?o ocasionadas pelos dist?rbios, a press?o anular de fundo pode extrapolar o limite superior (press?o de fratura) e o inferior (press?o de poros), da janela operacional. Ao extrapolar tais limites, os fluidos da regi?o anular podem migrar para a fratura (perda de circula??o) ou os fluidos nativos do reservat?rio podem migrar para a regi?o anular (kick), essas situa??es s?o indesejadas durante a cimenta??o, podendo causar s?rios acidentes, perdas humanas, preju?zos financeiros e danos ambientais irrevers?veis. Para representar os fen?menos mais importantes do processo de cimenta??o, foi constru?da uma unidade experimental com instrumenta??o capaz de quantificar vaz?o, densidade e press?o em tempo real. Foram analisados o comportamento da press?o anular de fundo no bombeio de fluidos com diferentes densidades (8, 11 e 14 ppg), al?m dos fen?menos de perda de circula??o com kick de g?s, controlando a press?o em um valor desejado (set point), utilizando uma estrat?gia de controle por realimenta??o (controlador PI), atrav?s do ?ndice da abertura da v?lvula choke.Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-07-28T17:55:36Z No. of bitstreams: 1 2016 - Frederico Martins Costa.pdf: 7875693 bytes, checksum: 1f9e0aaff0875ac10e2311a35da16d31 (MD5)Made available in DSpace on 2017-07-28T17:55:36Z (GMT). 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dc.title.por.fl_str_mv Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
dc.title.alternative.eng.fl_str_mv Implementation of experimental unit for downhole pressure control during the process of cementing well petroleum
title Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
spellingShingle Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
Costa, Frederico Martins
Downhole pressure
cementing
loss circulation
PI control
Press?o anular de fundo
cimenta??o
kick
perda de circula??o
controle PI
Engenharia Qu?mica
title_short Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
title_full Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
title_fullStr Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
title_full_unstemmed Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
title_sort Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo
author Costa, Frederico Martins
author_facet Costa, Frederico Martins
author_role author
dc.contributor.advisor1.fl_str_mv Domiciano, M?rcia Peixoto Vega
dc.contributor.advisor1ID.fl_str_mv 023.611.797-17
dc.contributor.referee1.fl_str_mv Domiciano, M?rcia Peixoto Vega
dc.contributor.referee2.fl_str_mv Miranda, Cristiane Richard de
dc.contributor.referee3.fl_str_mv Martins, Andr? Leibsohn
dc.contributor.authorID.fl_str_mv 016.265.396-42
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/9213447649842076
dc.contributor.author.fl_str_mv Costa, Frederico Martins
contributor_str_mv Domiciano, M?rcia Peixoto Vega
Domiciano, M?rcia Peixoto Vega
Miranda, Cristiane Richard de
Martins, Andr? Leibsohn
dc.subject.eng.fl_str_mv Downhole pressure
cementing
loss circulation
PI control
topic Downhole pressure
cementing
loss circulation
PI control
Press?o anular de fundo
cimenta??o
kick
perda de circula??o
controle PI
Engenharia Qu?mica
dc.subject.por.fl_str_mv Press?o anular de fundo
cimenta??o
kick
perda de circula??o
controle PI
dc.subject.cnpq.fl_str_mv Engenharia Qu?mica
description The process of well cementing is very complex, beyond the fact that cement paste presents high density, different rheology fluids are injected into the annulus, altering downhole pressure due to changes on hydrostatic pressure and frictional losses. Knowing the operational window and assuring downhole pressure inside this constraint is primordial for security and well life cycle purposes. Due to downhole variations caused by the disturbances, the superior (fracture) and inferior window limits can be exceeded. As a result, loss circulation problems (mud penetration into a fracture) or kick (reservoir fluid inflow into the annulus) can disturb the cementing process, leading to serious accidents, financial losses, environmental damage and human losses. In order to represent the most important phenomena of cementing process, an experimental unit was built using on line flow, density and pressure measurements. Downhole pressure control through pumping 8, 11 and 14 ppg (lb/gal) fluids was analyzed under loss circulation and kick phenomena. The tracking of the downhole pressure at the set point, by employing a feedback control loop (PI), was implemented through using the opening index of the choke valve as the manipulated variable.
publishDate 2016
dc.date.issued.fl_str_mv 2016-12-27
dc.date.accessioned.fl_str_mv 2017-07-28T17:55:36Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv COSTA, Frederico Martins. Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo. 2016. 132 f. Disserta??o (Mestrado em Engenharia Qu?mica, Tecnologia Qu?mica) - Instituto de Tecnologia, Departamento de Engenharia Qu?mica, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2016.
dc.identifier.uri.fl_str_mv https://tede.ufrrj.br/jspui/handle/jspui/1932
identifier_str_mv COSTA, Frederico Martins. Implementa??o de unidade experimental para controle da press?o anular de fundo durante o processo de cimenta??o de po?os de petr?leo. 2016. 132 f. Disserta??o (Mestrado em Engenharia Qu?mica, Tecnologia Qu?mica) - Instituto de Tecnologia, Departamento de Engenharia Qu?mica, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2016.
url https://tede.ufrrj.br/jspui/handle/jspui/1932
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language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Universidade Federal Rural do Rio de Janeiro
dc.publisher.program.fl_str_mv Programa de P?s-Gradua??o em Engenharia Qu?mica
dc.publisher.initials.fl_str_mv UFRRJ
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Instituto de Tecnologia
publisher.none.fl_str_mv Universidade Federal Rural do Rio de Janeiro
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