gilsonite bitumen

Specification and properties of CMC carboxymethly Cellulose

Specification CMC carboxymethly Cellulose

Technical Specification of CMC carboxymethly Cellulose for oil drilling liquids according to API

Specification of CMC carboxymethly Cellulose HV and LV

Type

Specification of CMC HV and LV

CMC-HVT

Viscometer 600r/min

Distilled water

30.0 min

40g/dm3 brine

30.0 min

Saturated brine

30.0 min

Filtration Loss (ml)

10.0 max

CMC-LVT

Viscometer 600r/min

90.0 max

Filtration Loss (ml)

10.0 max

 

Specification of CMC carboxymethly Cellulose LV MV and HV

 

LV-CMC

MV-CMC

HV-CMC

Appearance

White or light yellow powder, freely flowable

Water,%

10 max

CMC,%

80.0 min

85.0 min

95.0 min

Substitution degree,%

0.80 min

0.65 min

0.8 min

PH

7.0-9.0

7.0-9.0

6.5-8.0

Properties and measurement of CMC carboxymethly Cellulose

Type

Item

Typical measured values

Distilled water

Brine

Saturated brine

Base mud

Filtration loss, ml

60±10

90±10

100±10

Apparent viscosity, mPa•s

6 max

6 max

10 max

PH

8.0±1.0

8.0±1.0

7.5±1.0

HV-CMC

Mud generating capacity, m3 /t

200 min

150 min

160 min

LV-CMC

Filtration loss = 10ml

Addition rate, g/l

7.0 max

10.0 max

Apparent viscositymPa•s

4.0 max

6.0 max

MV-CMC

Addition rate,g/l

6.0

14.0

3.5

Apparent viscosity,mPa•s

15 min

15 min

15 min

Filtration loss,ml

9 max

9 max

9 max

 

There a lot of specification of CMC. For more you can check CMC carboxymethly Cellulose pages.

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