BS EN ISO 10414-2:2011

This standard BS EN ISO 10414-2:2011 Petroleum and natural gas industries. Field testing of drilling fluids is classified in these ICS categories:

• 75.180.10 Exploratory, drilling and extraction equipment

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

1. drilling fluid density (mud weight);

2. viscosity and gel strength;

3. filtration;

4. oil, water and solids concentrations;

5. alkalinity, chloride concentration and calcium concentration;

6. electrical stability;

7. lime and calcium concentrations, calcium chloride and sodium chloride concentrations;

8. 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).