Polyanionic Cellulose

We are offering polyanionic cellulose.cas no.: 9004-32-4
molecular formular: [c6h7o2(oh)2ch2coona]n
structural formular:
property:
pac 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.
pac is an indispensable product for drilling mud making. It is high purity product; the water solution of this white powder is transparent and viscid. As water-soluble polymer, pac 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.
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. 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. Pac is suitable for confecting the completion fluid with these 3 kinds of water above.
specification:
item index
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%
degree of substituation ≥0.90 ≥0.90
viscosity brookfield (1%) ≤50 ≥1500
api fluid lose increase 0.57% ≤25.0ml ≤20.0ml
increase 0.86% ≤15.0ml ≤15.0ml
increase 1.14% ≤10.0ml ≤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:
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.
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.
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. Pac r increases and stabilizes viscosity to improve rheology, wellhole cleaning and suspension property by coating and encapsulating cuttings and solids of drilling fluids. 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.