API RP 13B-2

Recommended Practice for Field Testing Nonaqueous-based Drilling Fluids, Sixth Edition

American Petroleum Institute, 07/01/2023

Publisher: API

File Format: PDF

$111.00$222.00


Published:01/07/2023

Pages:164

File Size:1 file , 2.4 MB

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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).

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