API SPEC 13A
Specification for Drilling-Fluid Materials
|Publication Date:||1 May 1993|
a. This specification is under the jurisdiction of the API Committee on Standardization of Drilling Fluid Materials.
b. The purpose of this specification is to provide standards for
materials used in oil well drilling fluids. The materials covered are
barite, hematite, bentonite, nontreated bentonite, OCMA grade
bentonite, attapulgite, sepiolite, technical-grade low viscosity
c. Reference is made herein to API RP 13B-1: Standard Procedure for Field Testing of Water-Based Drilling Fluids, which is also under the jurisdiction of the Committee on Standardization of Drilling Fluid Materials.
d. Additional publications under jurisdiction of this committee are:
RP 13B-1 Recommended Practice for Standard Procedure for Field Testing Water-Based Drilling Fluids
RP 13B-2 Recommended Practice for Standard Procedure for Field Testing Oil-Based Drilling Fluids
Bul 13C Bulletin on Drilling Fluids Processing Equipment
Bul 13D Bulletin on the Rheology of Oil Well Drilling Fluids
RP 13E Recommended Practice for Shale Shaker Screen Cloth Designation
RP 13G Recommended Practice for Drilling Mud Report Form
RP 13I Recommended Practice for Laboratory Testing of Drilling Fluids
RP 13J Recommended Practice for Testing Heavy Brines
RP 13K Recommended Practice for Chemical Analysis of Barite
e. Manufactures interested in obtaining a monogram license for these materials should either write the API Dallas office at 2535 One Main Place, Dallas, Texas 75202 for an application package or purchase a copy of the Composite List of Manufacturers Licensed for Use of the API Monogram, Order No. 811-00005.