API RP 13B-1
Revision / Edition: 4 Chg: Date: 03/00/09
RECOMMENDED PRACTICE FOR FIELD TESTING WATER-BASED DRILLING FLUIDS
*** ISO ADOPTION FROM ISO 10414-1 ***
Document Abstract
This part of ISO 10414 provides standard procedures for determining the following characteristics of water-based drilling fluids:
drilling fluid density (mud weight);
viscosity and gel strength;
filtration;
water, oil and solids contents;
sand content;
methylene blue capacity;
pH;
alkalinity and lime content;
chloride content;
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.
