Product Description

BENVIS^® HT viscosifier is designed to build gel strength and viscosity in invert emulsion drilling fluids and maintain this viscosity build through extreme temperatures. It is specially designed organoclay which was chemically engineered to maintain product performance when subject to temperatures as high as 450°F 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. BENVIS^® HT viscosifier exhibits an excellent balance of dispersibility with initial viscosity build, efficiency and tolerance to adverse conditions for reduced depletion rates. BENVIS^® HT viscosifier should always be used in the presence of excess of lime.

Applications/Functions

• Builds superior viscosity and yield points for all oil-based fluids through extreme temperatures.
• Effectively suspend weighting materials and cuttings for long term ageing
• Improves cuttings carrying capacity and hole cleaning

Advantages

• Stable to bottom hole temperatures in excess of 450°F
• Flat rheology with increasing temperature for anti-sag and improved carrying capacity
• Shear thinning rheological profile for improved ROP
• Compatible with conventional invert emulsion drilling fluid additives
• Tolerant to salt, high lime, cement and drill solids contaminations; Optimized for use in synthetic oils

Typical Properties

• Appearance: Cream white, free flowing powder; Specific gravity: 1.7

Recommended Treatment

• Add 2-6 ppb in diesel-based and 6-12 ppb in mineral oil-based drilling fluids. Pilot tests are required to be done based on field conditions and down hole temperatures

Package

• 25 KG SACK