Oilfield Additives

PAC — Polyanionic Cellulose

Widely used as a fluid loss reducer and viscosifier in water-based drilling fluids. Provides excellent filtration control, thermal stability, and compatibility with other oilfield chemicals.

Reduces API fluid loss in drilling fluids
Enhances viscosity and rheology control
Improves borehole stability and lubricity
Compatible with freshwater and saline systems
CAS No.: 9004-32-4 Purity: ≥ 95% Moisture: ≤ 10% Package: 25 kg/bag
Polyanionic Cellulose (PAC) powder sample

Core Specifications

PAC (Polyanionic Cellulose) is a high-performance fluid loss reducer for drilling fluids. Below are the typical specifications.

AppearanceWhite free-flowing powder

Odorless, water soluble, easy handling.

Visual
CAS No.9004-32-4

Commonly shared with CMC derivatives.

Identification
EINECS No.618-378-6

European inventory reference.

Standard
Purity≥ 95%

Calculated on dry basis.

Quality
D.S≥ 0.90

Degree of substitution per glucose unit.

Structural index
Moisture≤ 10%

Loss on drying.

Shelf stable
ViscosityLV ≤ 40 / HV ≥ 50 mPa·s

Model dependent: LV vs HV grade.

Rheology
API Fluid LossLV ≤ 16 / HV ≤ 23 mL

Measured in 4% brine solution.

Performance
Package25 kg/bag

Multi-wall kraft with PE liner.

Export ready
PAC in drilling mud

Drilling Mud

PAC is used as a fluid loss reducer in water-based drilling fluids, ensuring stable wellbore conditions.

PAC in oilfield fluids

Oilfield Operations

Improves viscosity, enhances suspension, and maintains lubricity in oil & gas exploration.

PAC drilling application

Well Stabilization

Helps control filtration, prevents fluid invasion, and supports safe drilling operations.

Trusted Supply • Easy Contact

All PAC products are from certified partner factories with COA per batch. Focus on your project — we take care of compliance and logistics. Reach out anytime for fast support.

Why Work With Us?

Certified partner factories • COA with every batch • Flexible shipping • Responsive support

FAQ

What is the MOQ and lead time?

MOQ is 1 ton. Typical lead time is 7–15 days depending on stock and port schedule.

Do you provide certificates and testing?

Each batch is supplied with a COA (Certificate of Analysis). Additional documents such as MSDS, TDS or other compliance certificates can be provided when available. For special requests, third-party inspection or testing can be arranged, with the inspection fee borne by the buyer.

Which payment terms do you accept?

T/T, L/C, and flexible options for long-term clients. Please confirm details during inquiry.