Xanthan Gum – Thickening Agent
1. Product Overview
Xanthan gum is a high-molecular-weight biopolymer produced via microbial fermentation, specifically designed for use in oil drilling fluids. It serves as a highly efficient viscosifier, fluid-loss control agent, and suspending agent.
The product maintains stable rheological properties under conditions of high temperature, high salinity, and high calcium content, effectively stabilizing the wellbore and facilitating cuttings transport. It is widely used in deep wells, directional wells, horizontal wells, and brine-based drilling fluid systems.
2. Key Features & Functions
- Excellent shear-thinning property: high static viscosity for superior cuttings suspension; low viscosity under pumping for better fluidity and higher drilling efficiency.
- Outstanding thermal and salt resistance: stable performance in high temperature and high-salinity / saturated brine systems.
- Effective fluid loss control: forms compact, low-permeability filter cake to reduce filtrate invasion and protect formation.
- Strong cuttings carrying capacity: effectively suspends barite and weighting materials, cleans wellbore and prevents settling.
- Good compatibility: compatible with various drilling fluid additives, suitable for fresh water, seawater and brine systems.
- Eco-friendly: biodegradable and low-toxic.
3. Technical Specifications
sheet
| Item | Specification |
|---|---|
| Appearance | Off-white or light yellow powder |
| Particle Size | 40–80 mesh |
| pH (1% solution) | 6.0–8.0 |
| Moisture | ≤13.0% |
| Viscosity (1% KCl solution) | ≥1200 cps |
| Thermal Stability | Up to 120–150℃ |
| Ash Content | ≤15.0% |
4. Packaging & Storage
- Packaging: 25kg per bag, kraft paper bag / woven bag with PE liner.
- Storage: Store in cool, dry and ventilated place, avoid moisture, direct sunlight and high temperature.
- Shelf life: 2 years under proper storage.
- Transportation: Non-hazardous, suitable for sea and land transportation.
5. Application Method
- Can be added directly as dry powder, or prepared into 0.5%–2.0% solution before adding to drilling fluid.
- Recommended dosage: 0.1%–0.4% by volume of mud, adjusted according to well depth, temperature and rheological requirements.
- Stir sufficiently during addition and circulate for 15–20 minutes until evenly dispersed.
- Can be used together with PAC, starch, lignite resin and other additives for better comprehensive performance.
