scope:

Objective

This standard provides procedures for the laboratory testing of both drilling fluid materials and drilling fluid physical, chemical, and performance properties.

Conditions of Applicability

This document is applicable to both water-based and non-aqueous drilling fluids, as well as the base or make-up fluid.

It is not applicable as a detailed manual on drilling fluid control procedures. Recommendations regarding agitation and testing temperature are presented because the agitation history and temperature have a profound effect on drilling fluid properties.

NOTE 1 This document does not include procedures related to testing barite specifications. These procedures are presented in API 13A.

NOTE 2 This document does not include procedures related to testing barite for mercury, cadmium, and arsenic. These procedures are presented in API 13K.