Catalogue

CMC-9L, CMC-9M, CMC-9H carboxymethylcellulose

Carboxymethylcellulose is used in the oil and gas industry as a fluid loss reducer for water-based drilling fluids.

 

Product specs

Parameter	CMC-9L	CMC-9M	CMC-9H
Appearance	White to cream fibrous or powdery material
Mass content of moisture, %, NMT	10.0
Effective viscosity of 1% aqueous solution, mPa*s	NMT 20	20–30	NLT 30
Static filtration index of freshwater drilling fluid with the addition of 0.3% reagent, cm?/30 min, NMT	10.0	10.0	-
Static filtration index of saline drilling fluid with the addition of 2.0% reagent, cm?/30 min, NMT	-	-	10.0
Effective viscosity of 1% aqueous CMC solution, mPa*s, w/salt content: 40 g/L 400 g/L	-	-	25.0 30.0

 

Application

Carboxymethylated cellulose facilitates formation of a thin, dense filtration crust, reducing filtrate penetration into the formation. The effect of the reagent on the rheological characteristics is determined by the product grade. CMC 9L has a minimal thickening effect, CMC 9H increases the viscosity of drilling fluids. The thermal stability of the reagents is 120°C.

 

Treatment

Approximate reagent consumption is 5-15 kg per 1 m? of drilling fluid.

 

Packaging

CMC is packed into 25 kg polypropylene bags with polyethylene liner.



Back