THE RESEARCH OF THE RELATIONSHIP OF THE COLLOID PHASE CONTENT AND RHEOLOGICAL CHARACTERISTICS OF DRILLING FLUIDS WHEN OPENING WEAKLY LITHIFIED CLAYS

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Ozoda Abdullayevna Salikhova
Matkarimova Nigora Sagdullayevna

Abstract

The test was carried out using a pre-formulated clay-free water-based drilling fluid subjected to an artificial increase in the concentration of the clay phase. Based on the measurements, a coefficient was derived that determines the rate of contamination of the solution, which makes it possible to determine the value of the "critical" value of the plastic viscosity of the system, which is characterized by an increase in adhesive properties. The above technique can be used in most modern "conditionally clay-free" water-based drilling fluids.

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