Definition(s)
Static Gel Strength (SGS)
The yield stress of fluids at rest.
Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards
Static Gel Strength (SGS)
Shear strength (stress) measurement derived from force required to initiate flow of a fluid.
Source: API RP 10B-6, Recommended Practice on Determining the Static Gel Strength of Cement Formulations, Upstream Segment, First Edition, August 2010. Global Standards