Modification of palygorskite with cationic and nonionic surfactants for use in oil-based drilling fluids

Modification of palygorskite with cationic and nonionic surfactants for use in oil-based drilling fluids

The objective of this work was to synthesize and characterize organically modified palygorskite clay with cationic and nonionic surfactants for use as an additive in oil-based drilling fluids. The cationic surfactant used was praepagen WB and the nonionic ones were ultramine TA50 and ultramine TA20....

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry Vol. 147; no. 4; pp. 2935 - 2945
Main Authors: de Brito Buriti, Bruna Michele Arruda, Barsosa, Maria Eduarda, da Silva Buriti, Josué, de Melo Cartaxo, Juliana, Ferreira, Heber Sivini, de Araújo Neves, Gelmires
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-02-2022
Springer
Springer Nature B.V
Subjects:
Analytical Chemistry
Cations
Chemistry
Chemistry and Materials Science
Clay
Crystal structure
Differential thermal analysis
Dispersions
Drilling fluids
Ethanol
High temperature
Inorganic Chemistry
Measurement Science and Instrumentation
Oil well drilling
Physical Chemistry
Polymer Sciences
Rheological properties
Rheology
Surface active agents
Surfactants
Thermal stability
Surfactants
Palygorskite
Organo-palygorskite
Drilling fluids
Rheological properties
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Summary:The objective of this work was to synthesize and characterize organically modified palygorskite clay with cationic and nonionic surfactants for use as an additive in oil-based drilling fluids. The cationic surfactant used was praepagen WB and the nonionic ones were ultramine TA50 and ultramine TA20. The organo-palygorskite clay (OPal) was obtained using a proportion of 15% of the surfactants. The samples were characterized by TG, DTA, DSC, DRX, MEV, and FTIR. The apparent and plastic viscosities were used to evaluate the rheological properties of OPal/oil dispersions aged at 66 and 150 °C. Through XRD and SEM, it was observed that the surfactants coated the clay surface without changing its crystal structure and morphology. Through TG, DTA, DSC, and FTIR, it was found that there was an incorporation of surfactants with content incorporated in the order of praepagen WB > Ultramina TA20 > Ultramina TA50. The organophilization process of palygorskite clay using cationic and non-ionic surfactants was effective. When mixing OPal with oil and aged at high temperatures, the dispersions OPal_WB/soluble oil and OPal_TA50/soluble oil show better rheological properties and thermal stability than dispersions formed with olefin. The rheological properties of OPal/soluble oil and OPal/glycerin + ethanol dispersions indicated that OPal is suitable for use as an additive in oil-based drilling fluids, showing that the nonionic surfactant can also be used to obtain organophilic clays.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-021-10701-w