Bentonite clays may be defined as a clay consisting predominantly of the smectite group clay minerals, particularly montmorillonite. There is naturally organophilic bentonite clays, these can be modified by specific treatments with surfactants (ionic or nonionic), passing to its hydrophobic nature hidofílica. Organophilic clays are widely used in drilling fluids non-aqueous, these fluids are mixtures of different components used in a well bore. One of the basic characteristics of drilling fluids is to minimize physical and chemical changes of the formations to be drilled. Recent studies have demonstrated the influence of clay, and presence of a dispersant surfactant rheology of the fluids. In this study we verified the influence of clay and...
Este trabalho foi desenvolvido com o objetivo de estudar composições das argilas bentoníticas dispon...
The determination of the rheology of drilling fluids is of fundamental importance to select the best...
The aim of this work is to characterize physically and mineralogically six samples of natural and in...
Bentonite clays may be defined as a clay consisting predominantly of the smectite group clay mineral...
Bentonite clays may be defined as a clay consisting predominantly of the smectite group clay mineral...
Argilas bentoníticas podem ser definidas como sendo uma argila constituída essencialmente de argilom...
Due to the great challenges encountered in drilling wells, there is a need to develop fluids with ap...
O uso de tensoativos não iônicos vem substituindo os tradicionais tensoativos iônicos dentre outros ...
As argilas bentoníticas se constituem um insumo imprescindível a elaboração de fluidos de perfuraçã...
Este trabalho teve como objetivo avaliar a influência de aditivos dispersantes e umectante aniônicos...
The physical characteristics as particle size distribution, density, shape, specific surface area an...
The oil based drilling fluids are used in situations which require special characteristics such as h...
The physical characteristics as particle size distribution, density, shape, specific surface area an...
Currently in Brazilian deposits of bentonite clays there are clays with a high percentage of coarse ...
Currently in Brazilian deposits of bentonite clays there are clays with a high percentage of coarse ...
Este trabalho foi desenvolvido com o objetivo de estudar composições das argilas bentoníticas dispon...
The determination of the rheology of drilling fluids is of fundamental importance to select the best...
The aim of this work is to characterize physically and mineralogically six samples of natural and in...
Bentonite clays may be defined as a clay consisting predominantly of the smectite group clay mineral...
Bentonite clays may be defined as a clay consisting predominantly of the smectite group clay mineral...
Argilas bentoníticas podem ser definidas como sendo uma argila constituída essencialmente de argilom...
Due to the great challenges encountered in drilling wells, there is a need to develop fluids with ap...
O uso de tensoativos não iônicos vem substituindo os tradicionais tensoativos iônicos dentre outros ...
As argilas bentoníticas se constituem um insumo imprescindível a elaboração de fluidos de perfuraçã...
Este trabalho teve como objetivo avaliar a influência de aditivos dispersantes e umectante aniônicos...
The physical characteristics as particle size distribution, density, shape, specific surface area an...
The oil based drilling fluids are used in situations which require special characteristics such as h...
The physical characteristics as particle size distribution, density, shape, specific surface area an...
Currently in Brazilian deposits of bentonite clays there are clays with a high percentage of coarse ...
Currently in Brazilian deposits of bentonite clays there are clays with a high percentage of coarse ...
Este trabalho foi desenvolvido com o objetivo de estudar composições das argilas bentoníticas dispon...
The determination of the rheology of drilling fluids is of fundamental importance to select the best...
The aim of this work is to characterize physically and mineralogically six samples of natural and in...