API RP 13B-1

Abstract

This part of ISO 10414 provides standard procedures for determining the following characteristics of water-based drilling fluids: <br>drilling fluid density (mud weight); <br>viscosity and gel strength; <br>filtration; <br>water, oil and solids contents; <br>sand content; <br>methylene blue capacity; <br>pH; <br>alkalinity and lime content; <br>chloride content; <br>total hardness as calcium. <br>Annexes A through K provide additional test methods which may be used for <br>&#8212; chemical analysis for calcium, magnesium, calcium sulfate, sulfide, carbonate and potassium; <br>&#8212; determination of shear strength; <br>&#8212; determination of resistivity; <br>&#8212; removal of air; <br>&#8212; drill-pipe corrosion monitoring; <br>&#8212; sampling, inspection and rejection; <br>&#8212; rig-site sampling; <br>&#8212; calibration and verification of glassware, thermometers, viscometers, retort-kit cup and drilling-fluid balances; <br>&#8212; permeability-plugging testing at high temperature and high pressure for two types of equipment; <br>&#8212; example of a report form for water-based drilling fluid.