API RP 13B-2 Recommended Practice for Field Testing of Oil-based Drilling Fluids, Fifth Edition, Includes Errata

by api

his recommended practice provides standard procedures for determining the following characteristics of oil-based drilling a) drilling fluid density (mud weight); b) viscosity and gel strength; c) filtration; d) oil, water, and solids concentrations; e) alkalinity, chloride concentration, and calcium concentration; f) electrical stability; g) lime and calcium concentrations, calcium chloride, and sodium chloride concentrations; h) low-gravity solids and weighting material concentrations. The annexes provide additional test methods or examples that can optionally be used for the determination 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 sulfide (Annex I); calibration and verification of glassware, thermometers, viscometers, retort kit cups, and drilling fluid balances (Annex J); high-temperature/high-pressure filtration using the permeability-plugging apparatus (PPA) (Annex K); elastomer compatibility (Annex L); sand content of oil-based fluid (Annex M); identification and monitoring of weight-material sag (Annex N); oil-based drilling fluid test report form (Annex O).

141 pages, Paperback

Published January 1, 2014