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Mostrando ítems 11-20 de 95
Avaliação de compatibilidade entre pasta de cimento e fluido de perfuração não-aquoso utilizados em poços petrolíferos
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA, 2014-12-29)
Compatibility testing between a drilling fluid and a cement slurry is one of the steps before an
operation of cementing oil wells. This test allows us to evaluate the main effects that
contamination of these two fluids ...
Tratamento de cascalho de perfuração utilizando sistemas microemulsionados
(Universidade Federal do Rio Grande do NorteBrasilUFRNPÓS-GRADUAÇÃO EM ENGENHARIA QUÍMICA, 2015-02-04)
The oil industry is one of the activities that generates more waste to the
environment. The drill cuttings is a waste generated in large quantities in the drilling process
and that may cause environmental damage such as ...
Simulação e Análise da Fragmentação do Desmonte de Rochas na Pedreira Herval – BARREIROS – PE
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Engenharia Mineral, 2016)
Artificial neural network applied to the pore pressure estimation of a rocky formationRede neural artificial aplicada à estimativa da pressão de poros de uma formação rochosa
(Universidade de São Paulo, Instituto de Geociências, 2021)
In Vitro Microleakage of Composite Restorations Prepared by Er:YAG/Er,Cr:YSGG Lasers and Conventional Drills Associated with Two Adhesive Systems
(QUINTESSENCE PUBLISHING CO INC, 2009)
Purpose: The objective of this in vitro study was to compare the degree of microleakage of composite restorations performed by lasers and conventional drills associated with two adhesive systems. Materials and Methods: ...
Incorporating the uncertainty in geological boundaries into mineral resources evaluation
(2007)
Geological modelling is a key step prior to grade estimation in a mineral deposit and consists of a deterministic partitioning of the deposit into sub-domains called 'geological units', each with relatively homogeneous ...
Estudo reológico de um fluido de perfuração à base n-parafina, utilizando argila modificada com tensoativo
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA QUÍMICA, 2015-08-25)
For drilling of oil wells, one of the stages of oil and gas is of utmost importance to use the drilling fluid. Among the existing drilling fluids, the oil-based drilling fluids are used in situations which require higher ...