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Principle of mud agitators

2014-08-23

Agitators play an important role in the surface treatment of drilling fluids. Impeller type mixers provide both axial and radial flow, which lowers mud costs and improves mud properties. 

Impeller-type mixers are basically low-shear and low energy, inexpensive to operate and easy to maintain. Low-shear mixers are used to suspend and mix mud additives minimizing particle size degradation and polymer shear. 

Mud agitators serve three purposes:
1. Ensure mud additives are homogeneously mixed, preventing spot over treatment of chemicals, dilution water or weighting agents. 
2. Prevents the pits from "gelling" by keeping the active mud system moving when the mud pumps are disengaged. 
3. When drilling with weighted mud, properly sized agitators will keep the weighting agents in suspension, minimizing solids from settling in corners or dead spots of    the pit.