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API RP 13B-1-2019

$52.00

Field Testing Water-based Drilling Fluids

Published By Publication Date Number of Pages
API 2019 132
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This recommended practice 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;

k) low-gravity solids and weighting material concentrations.

Annexes A through K provide additional test methods that 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, timers, viscometers, retort cup, and drilling fluid balances;

– permeability plugging testing at high temperature and high pressure for two types of equipment;

– Sag testing.

API RP 13B-1-2019
$52.00