Special Class Portland Cement
Mostrando 1-2 de 2 artigos, teses e dissertações.
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1. Adição de superplastificante e anti-segregante à base de CMC em pastas de cimento para Poços de Petróleo
Oil well cementing materials consist of slurries of Special class Portland cement dispersed in water. Admixtures can be used to provide the necessary fluidity, so the material can be efficiently pumped down as well as penetrate porous rocks with controlled filter loss. Construction admixtures can be used to modify the properties of oil well cements provided
Publicado em: 2008
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2. Avaliação do comportamento reológico de pastas de cimento para poços de petróleo com adição de plastificantes
The isolation of adjacent zones encountered during oilwell drilling is carried out by Portland-based cement slurries. The slurries are pumped into the annular positions between the well and the casing. Their rheological behavior is a very important component for the cementing process. Nowadays, several alternative materials are used in oilwell cementing, wit
Publicado em: 2006