Catalogue

PAC-L low viscosity polyanionic cellulose

PAC-H and PAC-L polyanionic cellulose is designed to reduce filtration and regulate rheological properties of process fluids used for drilling and workover of oil and gas wells.

 

PAC-H high viscosity polyanionic cellulose

Product specs

Parameter	PAC-H	PAC-L
Appearance	White to brown or gray loose powder	White to brown or gray loose powder
Mass content of moisture, %, NMT	10.0	10.0
pH of 1% aqueous solution, NLT	8.0	8.0
Twist angle of the rotational viscometer spring at 600 rpm, 1% aqueous solution, deg.	NLT 40	NMT 40
Static filtration index of freshwater drilling fluid with the addition of 0.3% polymer, cm?/30 min, NMT	8.0	8.0

 

ApplicationPAC-L is used to reduce filtration of drilling fluids without significant change in their rheological characteristics.PAC-H can be used not only to regulate filtration parameters, but also to regulate viscous properties of drilling fluids.Polyanionic cellulose is characterized by higher heat and salt resistance as compared to standard carboxymethyl cellulose.

 

Treatment

Fluids treated by polyanionic cellulose (PAC-L and PAC-H) retain their properties in case of prolonged exposure to temperatures up to 120°C.Approximate reagent consumption is 5–20 kg per 1 m? of drilling fluid.

 

Packaging

The reagent is packed into 25 kg polypropylene bags with polyethylene liner.



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