Drilling mud is often saved in tanks/silos. SmartMeasurement™ ALCM family of Coriolis flow meters is used in the online mixing and blending of costly mud (WBM and OBM) and in custody transfer measurement with accuracies of 0. Coriolis meters, measuring mass flow, are unaffected via the shifting viscosity of oils http://ttps://www.gjgjgjgdgs.com