Gerneral Overview
Drilling fluid grade PAC-R is a general-purpose medium-high viscosity polyanionic cellulose. Our polyanionic cellulose pac has uniform substitution and stabilizes drilling fluid viscosity.

Core Product Advantages
1. Balanced Overall Performance: Takes into account both fluid loss control and rheology adjustment, highly versatile and meets most conventional drilling operation needs.
2. Uniform Substitution & Fast Dissolution: Uniformly distributed degree of substitution ensures fast dissolution and quick effect, improves mud mixing efficiency.
3. Good Temperature & Salt Resistance: Withstands temperature up to 150℃, possesses good salt and calcium tolerance, adapts to fresh water, seawater and conventional salinity systems.
4. High Cost Performance: Balances performance and cost, making it an economical and high-performance choice for conventional drilling operations.

Technical Parameters
Drilling fluid grade polyanionic cellulose PAC-R is a general-purpose medium-high viscosity anionic cellulose ether, a cost-effective conventional drilling fluid additive that combines fluid loss control and rheology adjustment. With uniform substitution and fast dissolution, it can stabilize drilling fluid viscosity, improve filter cake quality and reduce API fluid loss. Meanwhile, it has good salt resistance, calcium resistance and temperature resistance, can encapsulate drill cuttings and inhibit shale hydration swelling, maintains stable performance over a wide pH range, and has good compatibility with most drilling fluid additives. It is applicable to water-based drilling fluids and workover fluid systems with fresh water, seawater and conventional salinity.
Key Technical Specifications
| Item | Standard Index |
|---|---|
| Appearance | White to slightly yellow free-flowing powder |
| Degree of Substitution (DS) | ≥ 0.90 |
| Apparent Viscosity (1% aqueous solution, 25℃) | 500 – 1500 mPa·s |
| pH Value (1% aqueous solution) | 6.0 – 9.0 |
| Loss on Drying | ≤ 10.0 % |
| Purity (on dry basis) | ≥ 92.0 % |
| API Fluid Loss (fresh water standard base slurry) | ≤ 20 mL |
| Temperature Resistance | ≤ 150 ℃ |
| Fineness | ≥ 95 % passing 100 mesh sieve |
Application Scenariors
1. Conventional Water-based Drilling Fluid: For drilling operations in various conventional formations.
2. Workover Fluid Systems: For performance adjustment and fluid loss control during workover operations.
3. Fresh / Seawater Drilling Fluid: For drilling fluid systems with different salinity.
4. Medium-deep Well Drilling: For drilling fluid treatment in medium-depth wells.

Company Strength
Shandong LUFA New Material Group. is a professional manufacturer specializing in R&D, production and sales of cellulose ether products including hydroxypropyl methyl cellulose, sodium carboxymethyl cellulose and polyanionic cellulose. Established in 2009, we cover an area of 20,800 square meters with an annual output of over 30,000 tons. Our products have passed CE, FCC, RoHS and REACH certifications. Backed by a professional R&D team and strict quality control system, we adhere to the philosophy of "Quality First, Customer Supreme" and provide reliable cellulose ether products for global customers.

Packaging & Shipping
Packaging: Standard 25kg paper-plastic composite bag with inner moisture-proof film; 1000kg jumbo bag is optional. Customized packaging with your own logo is supported.
Shipping: We support sea freight (FCL/LCL), land transportation and international express for samples. All products undergo strict inspection before shipment to ensure good condition.
Delivery Time: 10-12 working days for regular stock orders; 15-20 working days for customized orders.
Transport Protection: Pallet reinforcement and stretch film wrapping are applied to avoid moisture and damage during transportation.

Our Service
Pre-sales Service: Free samples within 500g are available; 1-on-1 technical guidance for product selection; complete technical documents including TDS, SDS and COA are provided.
In-sales Service: Real-time order progress tracking; customized specification adjustment is supported; full assistance for commodity inspection and customs declaration.
After-sales Service: Professional technical team follows up application problems; quick response for quality issues; lifelong technical consultation support.

