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This recommended practice provides standard procedures for determining the following characteristics of nonaqueous drilling fluids (NADFs):
• drilling fluid density (mud weight);
• viscosity and gel strength;
• filtration;
• nonaqueous fluid (NAF), water, and solids concentrations;
• alkalinity, chloride concentration, and calcium concentration;
• electrical stability (ES);
• lime and calcium concentrations, calcium chloride, and sodium chloride concentrations;
• low-gravity solids and weighting material concentrations;
• sand content;
• high-temperature, high-pressure (HTHP) filtration using the permeability plugging apparatus (PPA).

Product Details

Edition:
6th
Published:
07/01/2023
Number of Pages:
164
File Size:
1 file , 2.4 MB
Product Code(s):
G13B206, G13B206, G13B206
Note:
This product is unavailable in Russia, Cuba, Syria, North Korea, Ukraine, Belarus, Iran
Posted in API

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his recommended practice provides standard procedures for determining the following characteristics of oil-based drilling fluids:

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 of:

  • 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).

Product Details

Edition:
5th
Published:
04/01/2014
Number of Pages:
141
File Size:
1 file , 1.6 MB
Redline File Size:
2 files , 11 MB
Product Code(s):
G13B205, G13B205, G13B205
Note:
This product is unavailable in Cuba, Iran, North Korea, Syria
Posted in API