OCL-JT is an amphoteric polymer fluid loss control additive that has good inhibition and mighty resistance to calcium and can be used at high temperature. OCL-JT is a water-soluble high molecule weight polymer consisting of anionic, cationic and nonionic groups.
Excellent inhibition capability, can restrain the hydration, expansion and dispersion of shale and cuttings, keep bore hole stability.
With perfect fluid loss control effectivity, good resistance to saturated calcium and salt it can be used in freshwater, seawater and saturated saltwater drilling fluids.
It is compatible with other drilling fluid additives. While being easily applicable and maintained it requires only low dosages(2%) and thus the cost factor is attractive.
Table 1 Physical and chemical Properties
| Appearance | White powder |
| Moisture, % | ≤10.0 |
| Fineness, 20 mesh screen residue, % | ≤10.0 |
| PH, 3.5ppb water solution | 7.0～9.0 |
| Apparent viscosity,3.5ppb water solution, mPa.s | ≤10.0 |
Table 2 Drilling Properties
| Mud Type | Specification | |||
| Apparent Viscosity (mPa.s) | Plasticity Viscosity (cP) | Filter Loss (ml) | ||
| Fresh-water Mud | Basic Slurry | 6～8 | 3～5 | 20～25 |
| Basic Slurry＋0.4%OCL-JT | ≤30 | ≤20 | ≤15 | |
| Compound Salt-water Mud | Basic Slurry | 4～6 | 2～4 | 80～120 |
| Basic Slurry＋0.2%OCL-JT | ≥5 | ≥3 | ≤15 | |
Polyethylene lined paper bag, or packed according to the request of clients,25kg/bag.
Placed in dry, ventilated, shady and cool circumstance, and prevented from acid and alkali touching.
Its storage life is two years.
