Cementing Composites
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions
The synthesis of alumina (Al2O3)-composites having different amount of very fine titanium and titanium carbide reinforcement-particles has been explored. Two experimental steps have been set for the synthesis; the first step consisted of the pressureless-sintering of Al2O3-titanium powders which were thoroughly mixed under high energy ball-milling and throug
Mat. Res.. Publicado em: 04/09/2012
-
2. Efeito de adições poliméricas na aderência de pastas de cimento a tubos metálicos após ciclagem térmica
Atualmente, os métodos com maior índice de sucesso de recuperação de óleos pesados são os térmicos, principalmente a injeção de vapor. Este método de recuperação coloca a interface entre o revestimento metálico e a bainha de cimento em ciclagem térmica, que devido à diferença de coeficientes de expansão entre os dois materiais pode provocar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/07/2011
-
3. Estudos de Durabilidade Frente ao Ataque Ácido de Compósitos Portland-Polímero para Cimentação de Poços de Petróleo
Portland-polymers composites are promising candidates to be used as cementing material in Northeastern oil wells of Brazil containing heavy oils submitted to steam injection. In this way, it is necessary to evaluate its degradation in the commonly acidizind agents. In addition, to identify how aggressive are the different hostile environments it is an import
Publicado em: 2008
-
4. Compósitos Portland-biopolímeros para cimentação de poços de petróleo
The oil production in mature areas can be improved by advanced recovery techniques. In special, steam injection reduces the viscosity of heavy oils, thus improving its flow to surrounding wells. On the other hand, the usually high temperatures and pressures involved in the process may lead to cement cracking, negatively affecting both the mechanical stabilit
Publicado em: 2006