1, physical and chemical performance index
Purity, % ≥ 90.0
Moisture, % ≤ 7.0
Residual alkali content, % ≤ 2.5
Fineness (pass 10 mesh screen), % 100
Appearance Flowable powder or granule, no caking
2, drilling fluid performance index
Fresh water base mud Filter loss, mL 25.0± 2
Apparent viscosity mPa S 7.0
Add Na-HPAN2.0 g/L into fresh water base mud Filter loss, mL≤ 13.0
Apparent viscosity, mPa S≤ 10.0
Saline water base mud Filter loss, mL≤ 55.0± 3
Apparent viscosity, mPa S≤ 8.0
Add Na-HPAN15.0 g/L into saline water base mud Filter loss, mL≤ 13.0
Apparent viscosity, mPa S 10.0
Usage: It is mainly used as filtrate reducer for water-based drilling fluid. It has a certain ability of viscosity reduction, and obvious effect of temperature resistance and salinity.
Direction of use: Add into mud directly, stir and dissolve.
Package: Inner PE outer woven bag or three-in-one packaging bag. 25kg/bag.
Storage: Store in aeration-drying place. Prevent from moisture.