USE OF SELECTED OLEOPHILIC COMPOUNDS WITH QUARTZERIC NITROGEN TO IMPROVE THE OILABILITY OF FINE-PARTICULAR TONE AND THEIR USE AS VISCOSITY DEVICES

摘要

The description relates to the use of quaternary oleophilic esters of alkylolamines and carboxylic acids with at least 8 C atoms in the carboxylic acid molecule (esterquats) to hydrophobise and extend the oil wettability of natural and/or synthetic clays for their use in oil-based liquid phases, especially as viscosity promoters in flowable drilling emulsions of the W/O invert emulsion type. The object of the invention also covers W/O invert emulsions containing oil-dispersible thickening agents and possibly other components, especially borehole treatment agents which may be used in the context of land and/or sea-supported rock boring, with the feature that they contain at least a proportion of finely divided clays of natural and/or synthetic origin treated with the esterquat as oil-dispersible thickening agents.