M-I GEL viscosifier is a premium-grade bentonite (a sodium montmorillonite clay) that will yield 91 to 100 bbl of 15-cP mud per ton [1.7 m3/100 kg].

It is used as a primary filtercake-building, filtration-control and suspension agent in freshwater systems, and has application in all water-based drilling fluid systems. M-I GEL viscosifier is a high-quality product which meets the ISO 13500 Clause 9 (formerly known as API Spec 13A, Section 9) specifications for bentonite.

M-I GEL viscosifier is used to increase viscosity and reduce fluid-loss in water-based drilling fluids. It is a cost-effective means of achieving viscosity, fluid-loss control, and filtercake quality in freshwater and seawater muds. Typical concentrations for M-I GEL viscosifier range from 5 to 35 lbm/bbl [14.3 to 100 kg/m3].