API RP 13B-1:2026
Current
The latest, up-to-date edition.
Testing Water-based Drilling Fluids
English
15-01-2026
This recommended practice provides standard procedures for determining the following characteristics of waterbased drilling fluids: a) drilling fluid density (mud weight); b) viscosity and gel strength; c) static 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; l) static filtration at high-temperature and high-pressure through permeability plugging testing.
| DocumentType |
Standard
|
| Pages |
44
|
| PublisherName |
American Petroleum Institute
|
| Status |
Current
|
| Supersedes |
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