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Product Description

CarboxyMethyl Cellulose Sodium (Oil Drilling Grade)

CAS NO.: 9000-11-7
Molecular Formula: [C6H7O2(OH)2CH2COONa]n

Property:
Carboxymethyl Cellulose Sodium (CMC-Na) is a cellulose derivative obtained by chemically modificating the natural cellulose. It is one of the most important water soluble polymers with many advantages that other natural or synthetic glues do not have.

CMC is white and flowing fine powder. It is tasteless, smelless, mould-proof, non-toxic, non-flammable and easily dissolved in water to become transparent viscose solution.

CMC solution has good properties of thickening, adhering, emulsifying, and stabilizing. Membrane forming, moisture-holding, shape-holding, dispersing and anti-enzyme. The solution of CMC can be mixed with dissolvable animal glues, glycerin, sobbitol, Arabic gum, pectin, xanthic gum and dissolvable starch.

Specifications:
Check the tables at the end.
Note: The specs can be adjusted as required.

Usage:
Oil drilling grade CMC used in fracturing fluid, drilling fluid and well cementing fluid as fluid loss controller and tackifier. It can protect the shaft wall and prevent mud loss thus enhance recovery efficiency. It has the following characteristics:

- Excellent water retention even at low concentration.
- Excellent thickening effect.
- Good resistance to salt and temperature change.
- Imparts excellent rheological property.

Package and Storage:
Packed in multiply paper bags or fiber drums (25KG), or as per customer requirement; Keep dry

Key Words:
Sodium CarboxyMethyl Cellulose, CMC, CMC-Na, CM-Cellulose, Carboxymethyl Cellulosec Carboxymethyl cellulose Ether,

PHYSICAL SPECIFICATION OF CMC FOR OIL DRILLING LIQUIDS & OIL DRILLING LIQUIDS PROPERTIES (ACCORDING TO SY5093-92)

 
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
 

















 

 
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, m 3 /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 
 
 8 max 
 





























TECHNICAL SPECIFICATION OF CMC FOR OIL DRILLING LIQUIDS (ACCORDING TO GB/T5005-2001 OR API)
Type
 
  Specification
 
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
 
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