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Main ingredients
Lignosulfonate (CMN) for drilling fluid is the extract from the pulping process, which is produced through concentration modification reaction and spray drying.
Main ingredients
The product is a brown yellow free flowing powder, easily soluble in water, with stable chemical properties and long-term sealed storage without decomposition. Mainly used for viscosity reduction in oilfield drilling.
Specification
Table 1 Physical and Chemical Performance Indicators
|
Project |
Indicators |
|
Appearance |
Free flowing powder |
|
Moisture，% ≤ |
10.0 |
|
Sieve residue (20 mesh)，% ≤ |
8.0 |
|
Water insoluble substances，% ≤ |
8.0 |
|
Calcium sulfate content，% ≤ |
3.0 |
|
Total chromium content，% |
0.0 |
Table 2 Performance indicators of drilling fluid
|
Project |
Indicators |
||
|
Room temperature performance |
Freshwater slurry |
Apparent viscosity，mPa·s ≤ |
20 |
|
Viscosity reduction rate，% ≥ |
85 |
||
|
Saltwater slurry |
Apparent viscosity，mPa·s ≤ |
25 |
|
|
Viscosity reduction rate，% ≥ |
65 |
||
|
150 ℃/16h hot rolling |
Freshwater slurry |
Apparent viscosity，mPa·s ≤ |
30 |
|
Viscosity reduction rate，% ≥ |
80 |
||
|
Saltwater slurry |
Apparent viscosity，mPa·s ≤ |
45 |
|
|
Viscosity reduction rate，% ≥ |
50 |
||
Product features
Usage
Add dry powder directly through a funnel.
Recommended dosage: (volume ratio) 0.2% to 1.0%.
