THERMO- AND SALT-RESISTANT DRILLING FLUIDS BASED ON POLYMINERAL CLAYS OF UZBEKISTAN

Abstract

In conditions of high temperatures and pressures, reagents-stabilizers widely used in practice
undergo chemical change and lose their stabilizing properties, as a result of which the
stability and thixotropic functions of clay drilling muds deteriorate, their yield increases and
the separation of the suspension occurs with the release of the dispersed phase. Therefore, it
is considered promising to use polymineral clay compositions containing palygorskite, which
do not require much chemical treatment.