Description
- C-G211Sis a copolymer well cement fluid loss agent. Assemble of AMPS, well anti- temperature and anti-salt as main monomer and others monomers of anti-salt. Molecules contain quantity of perssad of －CONH2、－SO3H、－COOH with strong absorption, have important function on anti-salt, anti-temperature, absorb free-water, fluid losing.
- C-G211S can be widely used in various kinds of cement slurry system, good compatibleness with other additives.
- C-G211Scan be used in a wide temperature range, anti-temp to 180℃, well flowability, stable, few free liquid, no- coagulation delaying, intensity grow fast. It can be used to make cement slurry system with fresh water or salt water, no specific requirement to water quality of making up slurry.
Physics&ChemicIndex
| Item | Index |
| Appearance | White powder |
| Solubility，% | 100 |
| Moisture，% | ≤5.0 |
Cement Slurry Function
| Item | Specific | Experiment Condition |
| Fluid Loss，mL | ≤50 | 80℃,6.9MPa |
| Thickness time，min | ≥60 | 80℃,45MPa/45min |
| Initial thickness，Bc | ≤25 | 80℃,45MPa/45min |
| Compression strength，MPa | ≥14 | 80℃,normal pressure，24h |
| Free water, ml | ≤1.0 | 80℃,normal pressure |
| Cement slurry compose：100% G class cement(highly anti sulfur)+44.0%fresh water+0.9％C-G411S+0.5% C-X60L。 |
Application
- Temperature：180℃（BHCT）below.
- Addition：Recommend addition 0.5%-2.0%（BWOC）.
Packing
- C-G211S using 25kg polyethylene compound paper bag, or according to customers’ requirement.
Remark
- C-G211S can be made up in liquid, the code is C-G211L（normal）C-G211L-W(freezing proof)