Shaanxi Shangnan County Dongzheng Chemical Co., Ltd. 
[Molecular Formula] (C₆H₁₀O₅)ₙ
[Molecular Weight] 1×10⁵ ~ 2×10⁵
[Appearance] Free-flowing white or off-white powder
[Physical and Chemical Properties]
This product is a specially treated starch-based compound, a high polymer of glucose with hygroscopic properties, insoluble in cold water, ethanol, and ether. Through chemical modification, it gains improved resistance to temperature, salt, and calcium ions. It effectively controls fluid loss in drilling fluids, reducing damage to formations, enhancing fluid stability and reusability. Meanwhile, it offers excellent environmental performance, and does not cause environmental pollution.
Technical Specifications of High Temperature Resistant Starch
| Item | Specification | |
| Appearance | White or off-white powder | |
| Residue on 0.42 mm sieve, % | ≤10.0 | |
| Moisture content, % | ≤12.0 | |
| Apparent viscosity after hot rolling at 120℃ for 12 h, mPa·s | 4% Brine Slurry | ≤13.0 |
| Saturated Brine Slurry | ≤13.0 | |
| API Fluid Loss after hot rolling at 120℃ for 12 h, mL | 4% Brine Slurry | ≤30.0 |
| Saturated Brine Slurry | ≤30.0 | |
[Applications]
It is a widely used filtration control agent in oil drilling fluids, featuring abundant raw materials availability and non-toxic properties. In drilling operations, it mainly functions to reduce fluid loss, resist salt and calcium contamination and minimize environmental impact and reservoir damage.
[Specific Functions]
1. High Temperature Resistance:
The starch maintains stable performance under high temperatures, without degradation caused by heat, enabling effective fluid loss control in high-temperature formations to ensure uninterrupted drilling operations.
2. Salt Resistance:
In salt-bearing strata, conventional drilling fluids often suffer performance degradation due to salt contamination. In contrast, thermostable starch demonstrates excellent salt tolerance, maintaining reliable fluid-loss control even in high-salinity environments.
3. Calcium Resistance:
Calcium ions are commonly found in drilling fluids and tend to react with other fluid components, leading to deterioration of drilling fluid performance. The starch offers strong resistance to calcium ions, effectively inhibiting their activity in calcium-rich formations, thereby maintaining fluid stability.
4. Environmental Protection:
It is manufactured from natural starch through specialized processing. During application, it demonstrates excellent environmental compatibility, fully complying with ecological protection requirements.
[Product Advantages]
1. Rapid polymer formation in aqueous solutions -- enhances mud viscosity and consistency;
2. Eco-compliant: Non-toxic and zero-pollution;
3. High thermal stability--maintains performance integrity;
4. Superior salt tolerance and system compatibility --adapts to diverse mud types;
[Usage and Dosage]
Recommended dosage: 1%–2%.
[Packaging]
25 kg/bag, packed in triple-layer composite kraft paper bags. (Customizable according to client specifications).
[Storage Conditions]
Store in a dry, cool, and well-ventilated warehouse during storage and transportation. Keep away from fire and heat sources, and avoid direct sunlight.
