High-Performance
Fluid Loss Control Polymer for Water-Based Drilling Fluids
Polyanionic
Cellulose (PAC) is a high-quality water-soluble cellulose ether widely used in
water-based drilling fluid systems for fluid loss control, viscosity
enhancement, and wellbore stabilization. Manufactured through chemical
modification of natural cellulose, PAC offers excellent thermal stability, salt
tolerance, and filtration control performance in both freshwater and saline
drilling environments.
Available in
PAC-HV (High Viscosity) and PAC-LV (Low Viscosity) grades, this additive is
highly effective for onshore and offshore drilling operations, especially in
saltwater and high-temperature wells.
Application
- Water-Based Mud (WBM) Systems
- Offshore
& Saltwater Drilling
- High-Temperature
Drilling Operations
- Fluid
Loss Control Applications
- Shale
Stabilization & Wellbore Protection
- Oil &
Gas, Geothermal, and HDD Drilling
Key Advantages
- Excellent filtration and fluid loss control
- Improves
viscosity and cuttings suspension
- Performs
effectively in brine and seawater systems
- Enhances
wellbore stability and filter cake quality
- Biodegradable,
non-toxic, and environmentally friendly
- Cost-efficient
performance at low treatment concentrations
Polyanionic
Cellulose (PAC-HV & PAC-LV) is a chemically modified cellulose polymer used
as a fluid loss reducer and rheology modifier in drilling fluids. This
water-soluble cellulose ether provides excellent thermal stability, salt
resistance, and anti-bacterial properties while maintaining stable mud
performance in demanding drilling conditions.
PAC
products are widely used in oil drilling applications, particularly in
saltwater wells and offshore drilling operations where reliable filtration
control and wellbore stability are essential.
Key Features
PAC-HV (High
Viscosity)
- High viscosity enhancement for improved hole
cleaning
- Excellent
fluid loss reduction performance
- Strong
salt and temperature resistance
- Stable
rheological performance in drilling fluids
- Effective
in offshore and high-salinity environments
PAC-LV (Low
Viscosity)
- Low viscosity impact while controlling fluid
loss
- Produces
thin and impermeable filter cakes
- Compatible
with saltwater and brine systems
- Reliable
thermal stability at elevated temperatures
- Non-toxic
and environmentally safe formulation
Applications
- Water-Based Drilling Fluids (WBM)
- Offshore
& Saltwater Drilling Operations
- High-Temperature
Well Applications
- Filtration
Control in Drilling Mud Systems
- Shale
Inhibition & Wellbore Stabilization
- Formulated
into 0.5%–1% solution before injection into drilling fluid systems
Advantages
- Excellent API fluid loss control performance
- Improves
viscosity and cuttings suspension
- Enhances
wellbore stability and filter cake integrity
- Effective
in freshwater, seawater, KCl, and brine mud systems
- Biodegradable
and non-toxic without bactericide requirements
- Reduces
operational costs through low concentration treatment efficiency
