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PAC Drilling Fluid Application

Key Applications and Performance Advantages of

Oilfield Grade PAC in Drilling Fluids

Polyanionic Cellulose (PAC) is an important functional additive in oilfield drilling fluid systems. This article systematically introduces the core applications of PAC in solids control, performance regulation, and system stabilization, along with technical specifications.

1. Solids Control System Optimization

After hydrolysis, PAC forms multinuclear hydroxyl complexes. Through adsorption bridging and net capture, it flocculates dispersed fine solid particles (clay, cuttings) in drilling fluid into large flocs, which are then separated by solids control equipment such as shakers and centrifuges. This effectively reduces solid content, viscosity, and yield point, restoring drilling fluid performance and lowering drilling costs.

2. Efficiency Enhancement and Precise Control

PAC enables precise regulation of solid phase ratio in drilling fluid. Without compromising basic rheological properties, it reduces the negative impact of solid particles, improves fluidity and cuttings carrying capacity, ensuring smooth drilling operations under complex well conditions.

3. Drilling Fluid Pretreatment and System Stabilization

When preparing drilling fluid or treating contamination (e.g., calcium, salt), PAC acts as a pretreatment agent, flocculating impurities and harmful solids, providing a foundation for system stability. It has minimal impact on drilling fluid pH, making it suitable for most water-based drilling fluid systems.

4. Oilfield Grade PAC Technical Specifications

5. SIDLEYCHEM Product Value

SIDLEYCHEM is committed to providing customized solutions with high-quality oilfield grade PAC products, supporting oilfield reserve enhancement and production increase, and promoting petrochemical industry upgrading.

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April 17, 2026 Cellulose Ether Tech+ , ,
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