Chrome Lignosulfonate Description
Chrome lignosulfonate is mostly used in oil drilling as multi-purpose deflocculant, gel-strength reducer, viscosity controller and fluid loss reducer.
Main Specification
| Item | Requirement |
| Moisture | 8.5%max |
| Insoluble in water | 2.5%max |
| CaSO4 | 3.0% |
| Total Cr | 3.6~4.2 |
| Cr complex | 75.0%max |
Mud performance
| Item | Fresh water drilling mud | Salt water drilling mud | |
| Normal temperature | Apparent viscosity mPa.s | ≤30 | ≤30 |
| Rate of reducing viscosity % | ≥85 | ≥65 | |
| High temperature | Apparent viscosity mPa.s | ≤40 | ≤45 |
| Rate of reducing viscosity % | ≥60 | ≥60 |