BS EN ISO 10414-1:2008 - Page 2

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

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

1. a) drilling fluid density (mud weight);
2. b) viscosity and gel strength;
3. c) filtration;
4. d) water, oil and solids contents;
5. e) sand content;
6. f) methylene blue capacity;
7. g) pH;
8. h) alkalinity and lime content;
9. i) chloride content;
10. j) total hardness as calcium.

Annexes A through K provide additional test methods which may be used for

• — chemical analysis for calcium, magnesium, calcium sulfate, sulfide, carbonate and potassium;
• — determination of shear strength;
• — determination of resistivity;
• — removal of air;
• — drill-pipe corrosion monitoring;
• — sampling, inspection and rejection;
• — rig-site sampling;
• — calibration and verification of glassware, thermometers, viscometers, retort-kit cup and drilling-fluid balances;
• — permeability-plugging testing at high temperature and high pressure for two types of equipment;
• — example of a report form for water-based drilling fluid.