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Molecular Formula: [C6H7O2(OH)2CH2COONa]n
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CAS number: 9000-11-7
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Specifications:
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PHYSICAL SPECIFICATION OF CMC FOR OIL DRILLING LIQUIDS & OIL DRILLING LIQUIDS PROPERTIES (ACCORDING TO SY5093-92)
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LV-CMC
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MV-CMC
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HV-CMC
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Appearance
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White or light yellow powder, freely flowable.
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Water,%
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10 max
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CMC,%
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80.0 min
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85.0 min
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95.0 min
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Substitution degree,%
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0.80 min
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0.65 min
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0.8 min
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PH
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7.0-9.0
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7.0-9.0
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6.5-8.0
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Typical measured values
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Distilled water
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Brine
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Saturated brine
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Base mud
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Filtration loss, ml
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60±10
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90±10
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100±10
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Apparent viscosity, mPa·s
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6 max
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6 max
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10 max
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PH
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8.0±1.0
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8.0±1.0
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7.5±1.0
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HV-CMC
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Mud generating capacity, m 3 /t
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200 min
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150 min
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160 min
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LV-CMC
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Filtration loss = 10ml
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Addition rate, g/l
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7.0 max
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10.0 max
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Apparent viscositymPa·s
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4.0 max
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6.0 max
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MV-CMC
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Addition rate,g/l
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6.0
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14.0
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3.5
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Apparent viscosity,mPa·s
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15 min
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15 min
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15 min
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Filtration loss,ml
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9 max
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9 max
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8 max
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TECHNICAL SPECIFICATION OF CMC FOR OIL DRILLING LIQUIDS (ACCORDING TO GB/T5005-2001 OR API)
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Type
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Specification
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CMC-HVT
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Viscometer
600r/min |
Distilled water
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30.0 min
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40g /dm3 brine
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30.0 min
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Saturated brine
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30.0 min
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Filtration Loss (ml)
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10.0 max
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CMC-LVT
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Viscometer 600r/min
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90.0 max
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Filtration Loss (ml)
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10.0 max
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Properties:
CMC is white and flowing fine powder. It is tasteless, smell less, mould-proof, non-toxic, non-flammable and easily dissolved in water to become transparent viscose solution.
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.
- Excellent water retention even at low concentration.
- Excellent thickening effect.
- Good resistance to salt and temperature change.
- Imparts excellent rheological property.
Applications:
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.
Packing:
25kgs in multiply paper bags or fiber drums, 17MT/20’FCL,
or as per customer requirement;