Product name	filtrate reducers SM-JL-250
Item	Standard	Remarks
Appearance	Light brown powder	Attention moisture
Effective content (%)	95±2
PH value (1% aqueous solution)	6.5-7.5
Water solubilty	soluble in water
Ionic property	Anionic
Apparent viscosity mPa.s	8.0~12.0
Base pulp + 0.5% apparent viscosity, mPa.s	≥15.0	Note: Base slurry formula: 4% bentonite + 4% soil evaluation + 0.16% sodium carbonate
The filtrate loss(ml) after 16hrs aging under 180℃	20~30.0

The product is copolymerized with multipolymer copolymerization with high temperature and salt resistance.

Applied to the deep well high temperature drilling fluid system, the product improves the fluid-loss control, the rheology and the stability.

Widely used in the fresh water, seawater, saturated brine (NaCl), potassium chloride brine(KCl) and the formate system. The recommended amount is normally 0.5-3.0%. The anti-pollution of Ca2+ can reach more than 20000 ppm. In the laboratory conditions, the temperature resistance of CLJ-1 can reach 150℃

Features:

1.Has good resistance for temperature, salt, calcium and shearing;

2.Has good dispersion properties and heat dissipating capability for heat conduction;

3.Has anti-interference ability of the external environment with good chemical stability;

4.Good salt resistance, high valence ion sensitivity and excellent thermal stability;

5.It does not corrode drill and ground circulation equipment;

6.Can be used in deep wells, ultra-deep wells and high salinity brine, can also be used for low solid phase, solid-phase completion fluid of viscosity increasing, shear stripping filtrate reducers;

7.It is suitable for different water quality and can effectively control the filtrate loss in freshwater, salt water and seawater drilling fluid. The filter cake has good quality and good compatibility. It can be used with various treatment agents and is suitable for various water-based drilling fluid systems .

Use:

Used in the process of drilling operations, the amount of fresh water slurry is generally 0.3-1%, 1-2% salt water slurry. Directly put into the circulation of pulp, can also be formulated into glue to join.