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8 results on '"Gonçalves, Ruth Luna do Nascimento"'

1. Mechanical performance of bentonite plugs in abandonment operations of petroleum wells

Author

Oliveira, Laura Rafaela Cavalcanti de, primary, Lima, Mário César de Siqueira, additional, Costa, Waleska Rodrigues Pontes da, additional, Gonçalves, Ruth Luna do Nascimento, additional, Costa, Anna Carolina Amorim, additional, Nóbrega, Karine Castro, additional, Nascimento, Renalle Cristina Alves de Medeiros, additional, Souza, Elessandre Alves de, additional, Oliveira, Tiago Almeida de, additional, Barros, Michelli, additional, and Amorim, Luciana Viana, additional

Published
2024
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2. Mechanical Performance of Bentonite Plugs in Abandonment Operations of Petroleum Wells.

Author

Oliveira, Laura Rafaela Cavalcanti de, Lima, Mário César de Siqueira, Costa, Waleska Rodrigues Pontes da, Gonçalves, Ruth Luna do Nascimento, Costa, Anna Carolina Amorim, Nóbrega, Karine Castro, Souza, Elessandre Alves de, and Amorim, Luciana Viana

Subjects
WATER immersion, DEIONIZATION of water, SALINE waters, BENTONITE, COMPRESSIVE strength
Abstract

This study aims to evaluate how the operational procedure adopted for pellet placement and the exposure to subsurface conditions influence the mechanical integrity of bentonite plugs used as barrier elements in the abandonment of petroleum wells. To this end, the plugs were formed by hydrating the pellets directly in water, simulating the onshore procedure, while the offshore plugs were obtained from pellets hydrated in deionized water after immersion in diesel or olefin, which are suggested as displacement fluids. The plugs obtained were tested by compression and adhesion tests. These mechanical tests were also carried out for specimens obtained from plugs exposed to four formulations of synthetic formation waters. The results obtained demonstrated that, in the offshore procedure, the previous contact with olefin may adversely affects the mechanical stability of bentonite plugs, while plugs formed from pellets immersed in diesel presented satisfactory mechanical properties. However, the contact with formation water evidenced that the onshore plug presents superior resistance than the offshore plug previously immersed in diesel. The highly successful performance of the onshore plug was attested by the maintenance of the compressive strength, which exhibited a maximum reduction of 13%, even after exposure to the most saline formation waters. [ABSTRACT FROM AUTHOR]

Published
2024
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3. Evaluation of Saline Solutions and Organic Compounds as Displacement Fluids of Bentonite Pellets for Application in Abandonment of Offshore Wells

Author

Costa, Waleska Rodrigues Pontes da, primary, Oliveira, Laura Rafaela Cavalcanti de, additional, Nóbrega, Karine Castro, additional, Costa, Anna Carolina Amorim, additional, Gonçalves, Ruth Luna do Nascimento, additional, Lima, Mário César de Siqueira, additional, Nascimento, Renalle Cristina Alves de Medeiros, additional, Souza, Elessandre Alves de, additional, Oliveira, Tiago Almeida de, additional, Barros, Michelli, additional, and Amorim, Luciana Viana, additional

Published
2023
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4. Evaluation of Saline Solutions and Organic Compounds as Displacement Fluids of Bentonite Pellets for Application on Abandonment of Offshore Wells

Author

Costa, Waleska Rodrigues Pontes da, primary, Oliveira, Laura Rafaela Cavalcanti de, additional, Nóbrega, Karine Castro, additional, Costa, Anna Carolina Amorim, additional, Gonçalves, Ruth Luna do Nascimento, additional, Lima, Mário César de Siqueira, additional, Nascimento, Renalle Cristina Alves de Medeiros, additional, Souza, Elessandre Alves de, additional, Oliveira, Tiago Almeida de, additional, Barros, Michelli, additional, and Amorim, Luciana Viana, additional

Published
2023
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6. Qualificação de Diferentes Amostras de Atapulgita para Uso em Fluidos de Perfuração Salgados

Author

Costa, Waleska Rodrigues Pontes Da, primary, Gonçalves, Ruth Luna Do Nascimento, additional, Amorim, Luciana Viana, additional, Costa, Anna Carolina Amorim, additional, Nóbrega, Karine Castro, additional, Correia, Stephanie Lara, additional, Santos, Thaís Emanuelle Ferreira, additional, and Nascimento, Renalle Cristina Alves De Medeiros, additional

Published
2022
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