The total hardness test gives an indication of the level of soluble Calcium and Magnesium ions present in the mud. Such ions are considered detrimental since, under conditions of high pH (>11.5), they may render polymer, treatments for viscosity and fluid loss less effective. High levels of hardness will also flocculate Bentonite. The total hardness … Total Hardness – Water Based Mud Testing

The Calcium test gives an indication of the level of soluble Calcium ions present in the mud. Such ions are considered detrimental since, under conditions of high pH (>11.5), they may render polymer treatments for viscosity and fluid loss less effective. High levels of Calcium will also flocculate Bentonite. The total hardness should be controlled … Calcium Hardness – Water Based Mud Testing

The MBT is a rather crude chromatographic measure of the active clay content in water based muds. The MBT value must be controlled below the maximum value specified in the drilling fluids programme. When the MBT approaches the pre-defined maximum, mud must be treated. Mud condition, in terms of rheology and fluid loss, can deteriorate … Methylene Blue Test (MBT) – Water Based Mud Testing

A system of good laboratory practices and housekeeping shall be adopted to ensure accurate determination of mud chemistry and that safety is maintained. All glassware shall be kept clean and washed out with distilled water. All laboratory chemicals shall be clearly marked detailing contents, associated health hazards and shelf life. Tests shall not be conducted  … Mud Testing