ISO 10414-2:2011 provides standard procedures for determining the following characteristics of oil-based drilling fluids:
- drilling fluid density (mud weight);
- viscosity and gel strength;
- filtration;
- oil, water and solids concentrations;
- alkalinity, chloride concentration and calcium concentration;
- electrical stability;
- lime and calcium concentrations, calcium chloride and sodium chloride concentrations;
- low-gravity solids and weighting material concentrations.
The annexes provide additional test methods or examples that can optionally be used for the determination of:
- shear strength
- oil and water concentrations from cuttings;
- drilling fluid activity;
- aniline point;
- lime, salinity and solids concentration;
- sampling, inspection and rejection;
- rig-site sampling;
- cuttings activity;
- active sulphides;
- calibration and verification of glassware, thermometers, viscometers, retort kit cups and drilling fluid balances;
- permeability plugging apparatus with set-screw secured end cap;
- permeability plugging apparatus with threaded end cap;
- elastomer compatibility;
- sand content of oil-based fluid;
- identification and monitoring of weight-material sag;
- oil-based drilling fluid test report form.
