SY/T 5243-1991
Evaluation procedure of viscosity reducer for water-based drilling fluid (English Version)

Standard No.

SY/T 5243-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

Professional Standard - Petroleum

Latest

SY/T 5243-1991

Scope

This standard specifies the evaluation procedures for the viscosity reducing ability of water-based drilling fluids in weighted and non-weighted drilling fluids in fresh water, salt water, saturated brine. This standard is applicable to the evaluation of the viscosity reducing ability of viscosity reducing agents for water-based drilling fluids such as lignin, humic acid, tannins, and gums.

SY/T 5243-1991 history

• 1991 SY/T 5243-1991 Evaluation procedure of viscosity reducer for water-based drilling fluid