Marsh Funnel

Description S.N Scientific Solution Marsh Funnel is a rugged, easy to operate instrument for rapid, on the spot measurements of drilling mud viscosity. The rate of gelation and the density of the slurry considerably influence the viscosity measurement. Frequent reporting of the funnel viscosity makes it possible for mud engineers to observe sudden changes in the slurry viscosity and to take corrective action when necessary. Funnel viscosity is the ratio of the speed of the slurry as it passes through the outlet tube (shear rate) to the force (weight of the slurry) causing the slurry to flow (shear stress). Funnel viscosity is reported as the seconds required for one quart of slurry to flow out a full funnel. Equipment • Marsh Funnel • Measuring Cup (graduated) • Stopwatch • Thermometer