WITSML - fluids component schema Description for the type of object. Sample location. The time when fluid readings were recorded. The measured depth when fluid readings were recorded. Fluid density. Funnel viscosity in seconds. Funnel viscosity temperature. Plastic viscosity. Yield point (Bingham and Herschel Bulkley models). 10 second gels. 10 minute gels. 30 minute gels. Filter cake thickness at low (normal) temperature and pressure. API water loss (low temperature and pressure mud filtrate measurement) (ml/30min) High temperature high pressure (HTHP) temperature. High temperature high pressure (HTHP) pressure. High temperature high pressure (HTHP) filtrate (volume per 30min). High temperature high pressure (HTHP) Filter cake thickness. Solids percentage from retort (commonly in percent). Water content (commonly in percent). Oil content from retort (commonly in percent). Sand content (commonly in percent). Low gravity solids (%). Solids content (calculated) (commonly in percent). Barite content (commonly in percent). Lost circulation material. Cation exchange capacity (CEC) of the mud sample as measured by methylene blue titration (MBT). Mud pH. Mud pH measurement temperature. Phenolphthalein alkalinity of whole mud. Phenolphthalein alkalinity of mud filtrate. Methyl orange alkalinity of filtrate. Mud alkalinity P1 from alternate alkalinity method (volume in ml of 0.02N acid to reach the phenolphthalein endpoint). Mud alkalinity P2 from alternate alkalinity method (volume in ml of 0.02N acid to titrate the reagent mixture to the phenolphthalein endpoint). Chloride content. Calcium content. Magnesium content. Potassium content. One or more sets of rheometer readings at given temperature and pressure. Brine content (commonly in percent). Lime content. Measurement of the emulsion stability and oil-wetting capability in oil-based muds. Calcium chloride content. Name of company. Engineer name Average specific gravity of solids. Solids high gravity (commonly in percent). Polymers present in mud system. Type of polymers present in mud system. Solids corrected for Chloride content (commonly in percent). Oil on Cuttings. Total calcium hardness. Sulfide content. Comments and remarks. The unique identifier of the fluid.