BS EN ISO 10414-2:2011 - Page 5

Petroleum and natural gas industries. Field testing of drilling fluids. Oil-based fluids | Status: Confirmed, Current

1 Scope This part of ISO 10414 provides standard procedures for determining the following characteristics of oil-based drilling fluids:

1. a) drilling fluid density (mud weight);
2. b) viscosity and gel strength;
3. c) filtration;
4. d) oil, water and solids concentrations;
5. e) alkalinity, chloride concentration and calcium concentration;
6. f) electrical stability;
7. g) lime and calcium concentrations, calcium chloride and sodium chloride concentrations;
8. 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).