Gypsum slurries to apply in oil well: An insight into thickening time

Detalhes bibliográficos
Autor(a) principal: Braga, Glauco Soares
Data de Publicação: 2024
Outros Autores: Freitas, Júlio Cézar de Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/45299
Resumo: Gypsum is widely used in the construction industry, especially as a hydraulic binder. Studies have indicated the use of α-HH gypsum as an alternative material to Portland Cement in oilwell cementing operations, highlighting the reduction in environmental impacts from the reduction of Portland Cement. Calcium Sulphate α-Hemihydrate (CaSO4 . ½ H2O) has been shown to be a promising material to replace Portland Cement in some applications. The hydration of gypsum pastes goes through the process of saturation of the medium with Ca+2 and SO4-2 ions, then the physical phenomenon of crystallization, and finally the phenomenon of hardening, where the crystals formed precipitate producing Dihydrate (CaSO4 . 2H2O). Gypsum pastes harden very quickly, and their pumpability is impaired with thickening times of less than 20 minutes. For applications requiring longer pumpability times, the use of retarding additives is necessary. This research studied the effects of retarding additives in α-HH gypsum paste systems by varying the water-gypsum factor (FAG 0.4; 0.5 and 0.6) using a pressurized consistometer, under conditions of 54 °C and 9500 psi, with the aim of obtaining formulations with admissible thickening times for oil well cementing applications. The results showed that it was possible to develop paste systems with varying thickening times, with intervals of more than 120 minutes. The 0.5 FAG system proved to be more stable at the same retarder concentrations when compared to the 0.4 and 0.6 FAG systems.
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spelling Gypsum slurries to apply in oil well: An insight into thickening timePastas de yeso para pozos petrolíferos: Análisis del tiempo de espesamientoPastas de gesso para aplicação em poços de petróleo: Uma análise do tempo de espessamentoPastas de yesoAditivos retardantesTiempos de espesamientoCementación de pozos.Gypsum slurriesRetarding additivesThickening timesWell cementing.Pastas de gessoAditivos retardadoresTempos de espessamentoCimentação de poços.Gypsum is widely used in the construction industry, especially as a hydraulic binder. Studies have indicated the use of α-HH gypsum as an alternative material to Portland Cement in oilwell cementing operations, highlighting the reduction in environmental impacts from the reduction of Portland Cement. Calcium Sulphate α-Hemihydrate (CaSO4 . ½ H2O) has been shown to be a promising material to replace Portland Cement in some applications. The hydration of gypsum pastes goes through the process of saturation of the medium with Ca+2 and SO4-2 ions, then the physical phenomenon of crystallization, and finally the phenomenon of hardening, where the crystals formed precipitate producing Dihydrate (CaSO4 . 2H2O). Gypsum pastes harden very quickly, and their pumpability is impaired with thickening times of less than 20 minutes. For applications requiring longer pumpability times, the use of retarding additives is necessary. This research studied the effects of retarding additives in α-HH gypsum paste systems by varying the water-gypsum factor (FAG 0.4; 0.5 and 0.6) using a pressurized consistometer, under conditions of 54 °C and 9500 psi, with the aim of obtaining formulations with admissible thickening times for oil well cementing applications. The results showed that it was possible to develop paste systems with varying thickening times, with intervals of more than 120 minutes. The 0.5 FAG system proved to be more stable at the same retarder concentrations when compared to the 0.4 and 0.6 FAG systems.El yeso es bien conocido en la industria de la construcción, principalmente como aglutinante hidráulico. Algunos estudios han indicado el uso del yeso α-HH como material alternativo al cemento Portland en la cementación de pozos petrolíferos, destacando la reducción del impacto ambiental derivado de la reducción del cemento Portland. El sulfato de calcio α-Hemihidratado (CaSO4 . ½ H2O) ha demostrado ser un material prometedor para sustituir al Cemento Portland en algunas aplicaciones.  La hidratación de las pastas de yeso pasa por el proceso de saturación del medio con iones Ca+2 y SO4-2, luego por el fenómeno físico de la cristalización, y finalmente por el fenómeno del endurecimiento, donde los cristales formados precipitan para producir Dihidrato (CaSO4 . 2H2O). Las pastas de yeso se endurecen muy rápidamente y su bombeabilidad se ve afectada con tiempos de espesamiento inferiores a 20 minutos. Para aplicaciones que requieren tiempos de bombeo más largos, es necesario el uso de aditivos retardantes. Esta investigación estudió los efectos de los aditivos retardantes en sistemas de pastas de yeso α-HH variando el factor agua-yeso (FAG 0,4; 0,5 y 0,6) utilizando el consistómetro presurizado, en condiciones de 54 °C y 9500 psi, con el objetivo de obtener formulaciones con tiempos de espesamiento admisibles para aplicaciones de cementación de pozos petrolíferos. Los resultados mostraron que era posible desarrollar sistemas de pasta con tiempos de espesamiento variables, con intervalos de más de 120 minutos. El sistema de 0,5 FAG demostró ser más estable a las mismas concentraciones de retardante en comparación con los sistemas de 0,4 y 0,6 FAG.O gesso tem sua aplicação na construção civil bastante conhecida, principalmente como aglomerante hidráulico. Estudos têm indicado o uso do gesso α-HH como material alternativo ao Cimento Portland em cimentação de poços petrolíferos, destacando a redução dos impactos ambientais oriundos da redução do Cimento Portland. O Sulfato de Cálcio α-Hemihidratado (CaSO4 . ½ H2O) tem se apresentado como material promissor para substituir o Cimento Portland em algumas aplicações.  A hidratação das pastas de gesso passa pelo processo de saturação do meio com os íons de Ca+2 e SO4-2, na sequência o fenômeno físico da cristalização, por fim o fenômeno do endurecimento, onde os cristais formados precipitam produzindo o Dihidratado (CaSO4 . 2H2O). Pastas de gesso endurecem muito rapidamente, tendo sua bombeabilidade prejudicada com tempos de espessamento inferiores a 20 minutos. Para aplicações que necessitam de tempos maiores de bombeabilidade, torna-se necessário o uso de aditivos retardadores. Esta pesquisa estudou os efeitos de aditivos retardadores em sistemas de pastas de gesso α-HH variando o fator água-gesso (FAG 0,4; 0,5 e 0,6) utilizando o consistômetro pressurizado, nas condições de 54 °C e 9500 psi, com o objetivo de obter formulações com tempo de espessamento admissível para aplicações em cimentações de poços petrolíferos. Os resultados mostraram que foi possível desenvolver sistemas de pastas com tempo de espessamento variados, com intervalos superiores a 120 minutos. O sistema de FAG 0,5 mostrou-se mais estável com as mesmas concentrações de retardadores quando comparado com os sistemas de FAG 0,4 e 0,6.Research, Society and Development2024-03-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/4529910.33448/rsd-v13i3.45299Research, Society and Development; Vol. 13 No. 3; e7413345299Research, Society and Development; Vol. 13 Núm. 3; e7413345299Research, Society and Development; v. 13 n. 3; e74133452992525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/45299/36131Copyright (c) 2024 Glauco Soares Braga; Júlio Cézar de Oliveira Freitashttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessBraga, Glauco Soares Freitas, Júlio Cézar de Oliveira 2024-04-04T18:36:46Zoai:ojs.pkp.sfu.ca:article/45299Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-04-04T18:36:46Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Gypsum slurries to apply in oil well: An insight into thickening time
Pastas de yeso para pozos petrolíferos: Análisis del tiempo de espesamiento
Pastas de gesso para aplicação em poços de petróleo: Uma análise do tempo de espessamento
title Gypsum slurries to apply in oil well: An insight into thickening time
spellingShingle Gypsum slurries to apply in oil well: An insight into thickening time
Braga, Glauco Soares
Pastas de yeso
Aditivos retardantes
Tiempos de espesamiento
Cementación de pozos.
Gypsum slurries
Retarding additives
Thickening times
Well cementing.
Pastas de gesso
Aditivos retardadores
Tempos de espessamento
Cimentação de poços.
title_short Gypsum slurries to apply in oil well: An insight into thickening time
title_full Gypsum slurries to apply in oil well: An insight into thickening time
title_fullStr Gypsum slurries to apply in oil well: An insight into thickening time
title_full_unstemmed Gypsum slurries to apply in oil well: An insight into thickening time
title_sort Gypsum slurries to apply in oil well: An insight into thickening time
author Braga, Glauco Soares
author_facet Braga, Glauco Soares
Freitas, Júlio Cézar de Oliveira
author_role author
author2 Freitas, Júlio Cézar de Oliveira
author2_role author
dc.contributor.author.fl_str_mv Braga, Glauco Soares
Freitas, Júlio Cézar de Oliveira
dc.subject.por.fl_str_mv Pastas de yeso
Aditivos retardantes
Tiempos de espesamiento
Cementación de pozos.
Gypsum slurries
Retarding additives
Thickening times
Well cementing.
Pastas de gesso
Aditivos retardadores
Tempos de espessamento
Cimentação de poços.
topic Pastas de yeso
Aditivos retardantes
Tiempos de espesamiento
Cementación de pozos.
Gypsum slurries
Retarding additives
Thickening times
Well cementing.
Pastas de gesso
Aditivos retardadores
Tempos de espessamento
Cimentação de poços.
description Gypsum is widely used in the construction industry, especially as a hydraulic binder. Studies have indicated the use of α-HH gypsum as an alternative material to Portland Cement in oilwell cementing operations, highlighting the reduction in environmental impacts from the reduction of Portland Cement. Calcium Sulphate α-Hemihydrate (CaSO4 . ½ H2O) has been shown to be a promising material to replace Portland Cement in some applications. The hydration of gypsum pastes goes through the process of saturation of the medium with Ca+2 and SO4-2 ions, then the physical phenomenon of crystallization, and finally the phenomenon of hardening, where the crystals formed precipitate producing Dihydrate (CaSO4 . 2H2O). Gypsum pastes harden very quickly, and their pumpability is impaired with thickening times of less than 20 minutes. For applications requiring longer pumpability times, the use of retarding additives is necessary. This research studied the effects of retarding additives in α-HH gypsum paste systems by varying the water-gypsum factor (FAG 0.4; 0.5 and 0.6) using a pressurized consistometer, under conditions of 54 °C and 9500 psi, with the aim of obtaining formulations with admissible thickening times for oil well cementing applications. The results showed that it was possible to develop paste systems with varying thickening times, with intervals of more than 120 minutes. The 0.5 FAG system proved to be more stable at the same retarder concentrations when compared to the 0.4 and 0.6 FAG systems.
publishDate 2024
dc.date.none.fl_str_mv 2024-03-19
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/45299
10.33448/rsd-v13i3.45299
url https://rsdjournal.org/index.php/rsd/article/view/45299
identifier_str_mv 10.33448/rsd-v13i3.45299
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/45299/36131
dc.rights.driver.fl_str_mv Copyright (c) 2024 Glauco Soares Braga; Júlio Cézar de Oliveira Freitas
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2024 Glauco Soares Braga; Júlio Cézar de Oliveira Freitas
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 13 No. 3; e7413345299
Research, Society and Development; Vol. 13 Núm. 3; e7413345299
Research, Society and Development; v. 13 n. 3; e7413345299
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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