Polyanionic Cellulose PAC-LV API-13A

PAC-LV (Polyanionic Cellulose, Low Viscosity) is a water-soluble cellulose ether polymer, commonly used as a fluid-loss control agent in water-based drilling fluids for applications such as oil and natural gas drilling, as well as horizontal directional drilling (HDD).

Key Functions and Characteristics

• Fluid-Loss Control: Forms a thin, tough filter cake on the borehole wall, effectively reducing the loss of drilling fluid into the formation.
• Low-Viscosity Thickening Profile: Unlike PAC-HV (High Viscosity), PAC-LV significantly reduces fluid loss while causing little to no increase in the overall viscosity of the drilling fluid.
• Shale Inhibition and Encapsulation: Inhibits the hydration and dispersion of clay, helping to stabilize the borehole wall.
• Excellent Compatibility and Resistance: Suitable for a wide range of water-based mud systems—including those using fresh water, seawater, saturated brine, or KCl (potassium chloride)—and offers good thermal stability (typically up to approximately 150°C) as well as resistance to bacterial degradation.

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Product Detail

PAC-LV (Polyanionic Cellulose, Low Viscosity) is a water-soluble cellulose ether polymer, commonly used as a fluid-loss control agent in water-based drilling fluids for applications such as oil and natural gas drilling, as well as horizontal directional drilling (HDD).

Key Functions and Characteristics

• Fluid-Loss Control: Forms a thin, tough filter cake on the borehole wall, effectively reducing the loss of drilling fluid into the formation.
• Low-Viscosity Thickening Profile: Unlike PAC-HV (High Viscosity), PAC-LV significantly reduces fluid loss while causing little to no increase in the overall viscosity of the drilling fluid.
• Shale Inhibition and Encapsulation: Inhibits the hydration and dispersion of clay, helping to stabilize the borehole wall.
• Excellent Compatibility and Resistance: Suitable for a wide range of water-based mud systems—including those using fresh water, seawater, saturated brine, or KCl (potassium chloride)—and offers good thermal stability (typically up to approximately 150°C) as well as resistance to bacterial degradation.

Key Technical Specifications

Item Standard Index
Appearance White to off-white free-flowing powder
Degree of Substitution (DS) ≥ 0.90
Apparent Viscosity (1% aqueous solution, 25℃) ≤ 50 mPa·s
pH Value (1% aqueous solution) 6.0 – 8.5
Loss on Drying ≤ 10.0 %
Purity (on dry basis) ≥ 95.0 %
API Fluid Loss (fresh water standard base slurry) ≤ 16 mL
Temperature Resistance ≤ 150 ℃
Fineness ≥ 95 % passing 100 mesh sieve

Applications

1. Medium-shallow Conventional Drilling: For drilling fluid treatment in medium-shallow conventional well formations.

2. Workover & Completion Operations: For performance adjustment of conventional workover and completion fluids.

3. Fresh Water Drilling Fluid System: For filtration and rheology control of fresh water-based drilling fluids.

4. Cost-sensitive Projects: For drilling projects with strict cost control requirements.

Recommended Treatment

In all fluid types, 2-5kg/m3 of INTECHEMS PAC-LV should be mixed slowly through a hopper.

Packaging

25kg kraft bag with PE inner

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Polyanionic Cellulose PAC-LV API-13A