API SPEC 13A
Specification for Drilling Fluids Materials
| Organization: | API |
| Publication Date: | 1 February 2010 |
| Status: | inactive |
| Page Count: | 130 |
scope:
This International Standard covers physical properties and test procedures for materials manufactured for use in oil- and gas-well drilling fluids. The materials covered are barite, haematite, bentonite, nontreated bentonite, OCMA-grade bentonite, attapulgite, sepiolite, technical-grade low-viscosity carboxymethylcellulo
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