Shaanxi Shangnan County Dongzheng Chemical Co., Ltd. 
[Molecular Formula] Al₂O₃·4(SiO₂)·nH₂O
[Molecular Weight] 360.31
[Appearance] Free-flowing earthy yellow powder.
[Physical and Chemical Properties]
Bentonite, a naturally occurring clay mineral, serves as a fundamental component of drilling fluids. It effectively enhances fluid viscosity, stabilizes the borehole wall, prevents formation collapse, and improves drilling rate. It is widely used in oil and gas exploration and development, contributing significantly to operational efficiency by enhancing drilling efficiency and reducing exploration costs.
Technical Specifications of Bentonite
| Item | Specification | ||
| Drilling-Grade Bentonite | OCMA Grade Bentonite | ||
| Suspension | Viscometer 600 r/min Reading | ≥30 | ≥30 |
| Yield Point / Plastic Viscosity Ratio [Pa(mPa·s)] | ≤1.5 | ≤3 | |
| Fluid Loss / mL | ≤15.0 | ≤16.0 | |
| Residue on 75μm Sieve (mass fraction) / % | ≤4.0 | ≤2.5 | |
[Applications]
Bentonite demonstrates excellent dispersion and suspension properties, significantly improving drilling fluid rheology to enhance cuttings-carrying capacity and reduce friction coefficients, thereby substantially increasing drilling efficiency. Furthermore, bentonite strengthens the mud’s wall-building ability, forming a robust filter cake that effectively prevents wellbore collapse and ensures safe drilling operations.
[Specific Functions]
1. Adsorption Function
Bentonite exhibits excellent adsorption, water absorption, dispersion, lubrication, and viscosity properties. As a thickener, it absorbs large amounts of water to form a high-viscosity colloid, effectively filling borehole and wall fractures, ensuring the stability and viscosity of drilling fluid2. Lubrication Function
Bentonite serves as an excellent lubricant, reducing friction between the drill pipe and borehole wall, preventing sticking and borehole collapse, and extending bit life.
3. Filtration Function
Bentonite acts as a filtration agent, adsorbing and removing contaminants from the drilling fluid, keeping the fluid clean.
[Product Advantages]
1. Environmentally compliant: non-toxic and pollution-free;
2. Excellent water absorption and swelling capacity, with strong suspension ability;
3. Strong impermeability, ensuring safe drilling operations;
4. High temperature resistance, maintaining bonding and adhesion under high temperatures,ensuring consistent drilling fluid performance.
[Usage and Dosage]
Dosage should be adjusted based on geological conditions and well depth,Recommended dosage: 5%–15%.
[Packaging]
25 kg/bag, in woven bags, in paper-plastic composite bags, or in bulk bags, or customizable according to client specifications.
[Storage]
Store in a dry, cool and ventilated warehouse during storage and transportation. Protect from moisture.
