scope:

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

a) drilling fluid density (mud weight);

b) viscosity and gel strength;

c) filtration;

d) water, oil and solids contents;

e) sand content;

f) methylene blue capacity;

g) pH;

h) alkalinity and lime content;

i) chloride content;

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.