Bentonite Thickener GK-OBM21
Organically Modified Bentonite GK-OBM21 – Thickener for Paints and Oil-Based Drilling Fluids
Product Overview
GK-OBM21 is an organically modified bentonite (organoclay) designed to serve as a gelling and viscosifying agent for diesel‑based drilling fluids (oil‑based muds) and as a component in paint formulations. It provides excellent rheological control, ensuring proper suspension of solids and stability in challenging downhole conditions.
Key Properties
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Gelling and viscosity building: Imparts thixotropic properties to fluids, improving hole cleaning and cuttings transport.
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Compatibility: Specifically formulated for diesel‑based and other oil‑based drilling mud systems.
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Temperature stability: Maintains performance across a wide temperature range encountered in drilling operations.
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Paint applications: Also functions as a thixotropic thickener in solvent‑based paints and coatings, preventing sagging and improving application properties.
Recommended Usage
The concentration of GK‑OBM21 is typically adjusted between 2–10 lb/bbl (5.7–28.5 kg/m³) depending on the desired viscosity, mixing system, and downhole temperature. Higher concentrations are used for weighted fluids, packer fluids, or other specialty systems. Maximum viscosity is usually achieved after full circulation of the fluid through the bit, so care should be taken during initial mixing to avoid overtreatment.
Applications
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Oil‑based drilling fluids (diesel, mineral oil, or synthetic base).
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Spotting fluids and pipe‑release fluids.
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Packer fluids and completion fluids.
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Solvent‑based paints, varnishes, and coatings requiring thixotropic rheology.
Handling and Storage
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Store in a cool, dry place, away from moisture and direct sunlight.
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Keep containers sealed to prevent contamination and caking.
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Use appropriate dust control measures during handling (dust mask, gloves, safety goggles).
Packaging
Available in 25 kg bags, with 40 bags per pallet. Custom packaging upon request.
Quality Assurance
Each batch is tested for viscosity build, gel strength, and dispersion performance to ensure consistent and reliable results in field applications.
