DIN EN ISO 10414-2:2011-09

This part of ISO 10414 provides standard procedures for determining the following characteristics of oil-based drilling fluids: a) drilling fluid density (mud weight); b) viscosity and gel strength; c) filtration; d) oil, water and solids concentrations; e) alkalinity, chloride concentration and calcium concentration; f) electrical stability; g) lime and calcium concentrations, calcium chloride and sodium chloride concentrations; h) 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 (Annex A); . oil and water concentrations from cuttings (Annex B); . drilling fluid activity (Annex C); . aniline point (Annex D); . lime, salinity and solids concentration (Annex E); . sampling, inspection and rejection (Annex F); . rig-site sampling (Annex G); . cuttings activity (Annex H); . active sulphides (Annex I); . calibration and verification of glassware, thermometers, viscometers, retort kit cups and drilling fluid balances (Annex J); - permeability plugging apparatus with set-screw secured end cap (Annex K); . permeability plugging apparatus with threaded end cap (Annex L); . elastomer compatibility (Annex M); . sand content of oil-based fluid (Annex N); . identification and monitoring of weight-material sag (Annex O); . oil-based drilling fluid test report form (Annex P).