It is derivative of brown coal humic acid, Appearance is black brown powder, is one kind of thinner and controlling agent of Water drilling fluid; its operational temp. can reach 200 ℃ ～ 220 ℃.
Standard: SY/T5092-2002
Technical index:
Physiochemical index
|
Item |
Appearance |
Water-soluble Dry humic acid, % |
Moisture, ％ |
Dry full chrome, % |
|
Index |
black brown powder |
≥ 50.0 |
≤ 15.0 |
1.70-2.10 |
drilling fluid Performance index
|
Item |
Index |
|
In normal temp. |
After heat in high temp. |
|
Apparent viscosity, mPa · s |
≤ 8 |
≤ 10 |
|
Loss on filter in medium pressure(API), mL |
≤ 10 |
≤ 11 |
|
Percent of viscosity reduction, % |
75 |
≥ 80 |
|
Static shear force 1min, Pa |
≤ 1 |
≤ 1 |
Uses: mainly used in drilling . It can be directly used in water-based drilling liquid or work with drilling slurry treatment agent, dosage is 2.0-4.0% .
Packing & storage: 3-in-one package, lined with PE bag, net wt 25kg ; kept in cool, dry and ventilating place;Shield during the transportation, avoid rain and moisture. |
