BENTONE^® 42

BENTONE 42 was designed to build gel strength and viscosity in synthetic-based invert emulsion drilling fluids and maintain this viscosity build through extreme temperatures. It is a specially designed organoclay which was chemically engineered to maintain product performance when subjected to temperatures as high as 450ºF for as long as 600 hours. Additionally, as temperature increases, the viscosity at temperature remains flat. This flat rheology over temperature minimizes the tendency for barite sag while improving cuttings transport and hole cleaning. BENTONE 42 exhibits an excellent balance of dispersibility with initial viscosity build, efficiency and tolerance to adverse conditions for reduced depletion rates. 

Key properties

Performance Characteristics

• Stable to bottom hole temperatures in excess of 450ºF
• Flat rheology with increasing temperature for antisag and improved carrying capacity
• Shear thinning rheological profile for improved ROP
• Compatible with conventional invert emulsion drilling fluid additives
• Optimized for use in synthetic oils (i.e. isomerized alpha olefins)
• Tolerant to salt, high lime, cement and drill solid intrusion
• Efficient hole cleaning and suspension properties
• Environmentally acceptable

Functions

• Rheological additives

Market segment

• Energy

Application

• Drilling Fluid Additives