Turbulizers of an upsetting column

nbsp;Feature of turbulizers like TsT consists that their blades twisting the ascending liquid stream around an upsetting column are manufactured of the rubber reinforced by a cord; are rather elastic not to show noticeable resistance during descent of a column, but are rather rigid and strong to reject the ascending liquid stream on the screw line around a column and to provide increase of extent of replacement of drilling mud fluid grouting in annular space of a well.