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Polyanionic Cellulose (PAC)
CAS No.: 9004-32-4
Molecular Formular: [C6H7O2(OH)2CH2COONa]n
Property:
Polyanionic Cellulose (PAC)(Polyanionic Cellulose) is a kind of nonionic cellulose ether featured the properties of high purity, high DS, particularly high viscosity or low viscosity. These products are demi-natural polymer additive, thickening agent, filtrate reducer. Polyanionic Cellulose (PAC) is an indispensable product for drilling mud making.
Polyanionic Cellulose (PAC) is high purity product; the water solution of this white powder is transparent and viscid. As water-soluble polymer, it dissolves immediately in cold/hot water and can be used as a thickening agent, rheology controller, bond, stabilizer, colloid protector, suspending agent, and filtrate reducer.
Polyanionic Cellulose (PAC) is a good drilling mud additive and also an important material for confecting well liquid, a high mud volume product that featured high acid-resistance and salt-resistance ability. Polyanionic Cellulose (PAC) is a good filtrate reducer with the capacity of increasing viscosity and anti-high temperature (150°C) in the freshwater, seawater, or even saturated brine well-completion liquid. Polyanionic Cellulose (PAC) is suitable for confecting the completion fluid with these 3 kinds of water above.
Specification:
Test Item |
Standard |
||
PAC-LV |
PAC-HV |
||
Appearance |
Freely flowable powder |
Freely flowable powder |
|
PH |
6.0-8.0 |
6.0-8.0 |
|
Purity % |
≥95% |
≥95% |
|
Moisture % |
≤10% |
≤10% |
|
D.S. |
≥0.90 |
≥0.90 |
|
Viscosity Brookfield 1% |
≤50 |
≥1500 |
|
API Fluid Lose |
Increase 0.57% |
≤25.0 ml |
≤20.0ml |
Increase 0.86% |
≤15.0 ml |
≤15.0ml |
|
Increase 1.14% |
≤10.0 ml |
≤10.0ml |
|
YP Value |
Increase 0.57% |
≤0.5 |
≥2.4 |
Increase 0.86% |
≤1.0 |
≥9.6 |
|
Increase 1.14% |
≤1.5 |
≥19.2 |
|
NOTE: The parameters can be adjusted as per requirements.
Usage:
Polyanionic Cellulose (PAC) -HV is for water-based drilling fluids, which can effectively reduces the filtration rate of many water-based oil and gas drilling fluids and may also be used to increase and stabilize viscosity to improve hole cleaning and suspension properties in a wide variety of fluid environment.
Polyanionic Cellulose (PAC) -LV is for use in solids-laden, water-based drilling fluids, which can effectively reduces the filtration rate of many water-based drilling fluids, without causing significant increases in viscosity or gel strength.
Polyanionic Cellulose (PAC) R is a cost-effective additive to reduce API filtration rate of many water based drilling fluids including freshwater, seawater, saturated saltwater and solids-free brines, native mud, flocculated mud, inhibited mud and contaminated systems. Polyanionic Cellulose (PAC) R increases and stabilizes viscosity to improve rheology, wellhole cleaning and suspension property by coating and encapsulating cuttings and solids of drilling fluids. Polyanionic Cellulose (PAC) R is effective over a wide range of pH environments. It lubricates solids in the system, improve wallcake characteristics and reduces the potential for stuck pipe.
Package and Storage:
Packed in multiply paper bags or fiber drums (25KG), or as per customer requirement; keep dry.
Keyword:
PolyAnionic Cellulose, PAC, Cellulose
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