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