Introduction
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HTVIS-200 is an advanced water-based drilling-fluid viscosifier designed for freshwater, seawater, and high-salinity monovalent brines (up to 150,000 ppm). It is especially suitable for clay-free, high-temperature fluid systems and reservoir sections. Built on a slightly crosslinked synthetic polymer structure, HTVIS-200 enhances low-end rheology while helping maintain PV/YP stability. Supplied as a latex emulsion (~30 wt% active), it supports rapid hydration and uniform mixing, minimizing “fish-eyes”. The product is designed for high-temperature stability up to approximately 216°C (420°F), and can also contribute to shale encapsulation and swelling control, complementing common formation stabilizers.

Applications / Functions
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• Provides thermally stable viscosity control in the aqueous phase

• Builds low-end rheology to support hole cleaning and suspension

• Improves thixotropy and helps prevent settling in high-density or clay-free systems

• Suitable for freshwater / seawater / monovalent brine WBM systems (lab optimization recommended)

Advantages
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• • High-salinity tolerance in monovalent brines up to 150,000 ppm

   

  • Latex emulsion form for fast, uniform dispersion and reduced mixing issues

• Supports stable rheological profile with improved low-end readings

Recommended Treatment
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Typical dosage (optimize based on solids, salinity and target filtration):

• 5–15 ppb

Package
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• 200 kg plastic drum

• Custom packaging available upon request