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Carboxymethyl Starch CMS-I for Drilling Fluid
General introduction
? Carboxymethyl Starch CMS-I for Drilling Fluid is water soluble product after alkalization of starch and etherification of chloracetic acid . It can effectively control filtration loss of fresh water and salt water drilling fluids. It has the characteristics of being easily degradable. azymic, and little influence on rheology behavior.
Property index
Fig. 1 physical and chemical property
Items
Index
Appearance
Free flowing powder
Moisture ， %
≤15.0
screenings （ 0.45mm ）， %
≤10.0
Fig. 2 drilling fluid property
Items
Index
4% salt water
A.V , mPa·S
≤15.0
FL ， m L
≤15.0
Saturated salt water
A V , mPa·S
≤12.0
FL ， m L
≤15.0
Features
1. It can effectively reduce filtration loss of fresh water and salt water drilling fluids.
2. Good compatibility with other additives.
3. No toxicity.
4. Routine dosage is 0.3~0.5%.
Notes
This product should be stored in a cool, ventilated place to avoid the sun and rain.
Package
It is packed in composite paper sacks, with net weight 25kg per sa ck.
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