On the example of geological conditions of the central part of Western Siberia the characteristics of polymer-clay compositions based on the domestic reagent "Kometa-Meteor" and the possibilities of its application for drilling wells are considered. The reagent "Kometa-Meteor" is proposed as a hydration inhibitor in drilling mud. The results of studies have shown that the use of this reagent effectively prevents complications associated with wellbore instability during drilling. A comparative analysis of various compositions based on the polymer "Kometa-Meteor" and other widely used drilling fluid systems has been carried out.
The principles of application of mathematical statistics in the development of compositions of flushing fluids are stated. One example of data processing by Statgraphics program and obtained results are shown.
