API RP 13B-1

Description

This part of ISO 10414 provides standard procedures for determining the following characteristics of water based drilling fluids: a) drilling fluid density (mud weight); b) viscosity and gel strength; c) 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. Annexes A through K provide additional test methods. This edition of API 13B-1 is the identical national adoption of ISO 10414-1:2008, Petroleum and natural gas industries—Field testing of drilling fluids—Part 1: Water-based fluids.