FERROCHROMR LIGNOSULPHONATE IS WIDELY USED AS A FLUID LOSS CONTROL AGENTIN IN DRILLING FLUID.
Ferrochrome lignosulfonate(Ferrochrome lignosulphonate) is widely used as fluid loss control agent used in drilling fluids with obvious ability to resist high temperature and salty solution.
The diluent is suitable for use as a viscosity reducer in deep Wells.Suitable for vertical Wells and complex deviated Wells.Both viscosity and fluid loss are reduced in water-based drilling fluids.This product is also suitable for offshore drilling and drilling in high salt content and saturated salt conditions.
Ferrochrome lignosulfonate has good calcium, salt and high temperature resistance (up to 180℃), and is widely used to treat high calcium and saturated brine drilling fluids.
NO | Index items | Standard value | Test Results | |
1 | Appearance | Dark Brown powder | Meets the requirement | |
2 | Cr complex % | ≥75 | 86 | |
3 | Moisture % | ≤10.0 | 8.9 | |
3 | Water insoluble matter % | ≤2.5 | 1.9 | |
4 | Total Fe % | 2.5-3.8 | 3.23 | |
5 | Total Cr % | 3.0-3.8 | 3.75 | |
6 | PH | 8-10 | 9 | |
7 | Fresh water drilling fluid |
Viscosity reduction at room temperature %
| ≥80 | 88 |
Viscosity reduction at high temperature % | ≥60 | 72 | ||
8 |
2% brine drilling fluid |
Viscosity reduction at room temperature %
| ≥70 | 86 |
Viscosity reduction at high temperature %
| ≥50 | 61 | ||