rheological parameters

In Ukraine, the number of reagents regulating the properties of tail blends used for cementing deep oil and gas wells has decreased. Therefore, there is a need to expand the range of these reagents produced domestically to replace the known reagent, nitrilotrimethylphosphonic acid, which was produced in russia. The new reagent-retarder for oil-well cement should have a wide temperature range of application, complexity of action, and meet the requirements of environmental safety.

The technique for processing the output signals of hydrodynamic measuring system of rheological parameters of non-Newtonian fluids is presented in the paper. Hydrodynamic measuring system is built on four serially connected bridge hydrodynamic converters. The paper shows that the error of determination of rheological parameters directly from the experimental flow characteristic in consistent variables is considerable if the non-Newtonian fluid has the effect of wall slip on measuring surfaces of sensors of bridge transducers.