-
Cementing Slurry
- Fluid Loss Additive Series
- Retarder Series
- Accelerator Series
- Dispersant Series
- Anti-Gas Migration Agent Series
- Defoamer Series
- Lightening Agent Series
- Weighting Agent Series
- Strength Enhancer Series for Light Weight Slurry
- Pipeline Flushing Agent Series for Spacer
- Spacer Agent Series for Spacer Liquid
- Anti-Contamination Agent for Completion Fluids
- Drilling Fluid
- Oil Recovery Chemicals
- 2-Acrylamide-2-Methylpropanesulfonic Acid
0102030405
G31S Fluid Loss Control Additive for Oil Well Cementing
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Product Description
G31S reduces the permeability of the cement filter cake through the aggregation of water-soluble polymer molecular chains. By introducing multiple functional groups into the polymer, it enhances temperature and salt resistance.
Characteristics
G31S is a copolymer of AMPS, low molecular weight amides, multi-hydroxy carboxylic acids, and other modifiers.
Temperature resistance: 30–160℃.
Salt resistance: applicable in fresh water to saturated brine.
Water solubility: readily soluble.
Typical dosage: 0.5–1.2% (BWOC).
Good compatibility with other additives.
Compatibility with cement: suitable for all levels of oil well cement.
The cement slurry thickening transition time is short, close to right angle thickening.
Applicable to low-, normal-, and high-density cement slurry systems.
Has a slight retarding effect on the cement slurry.
Technical Specification
Cement slurry formulation: G-class oil well cement; W/C: 0.44; G31S dosage: 0.8% (BWOC); slurry density: 1.90 ± 0.01 g/cm³; water quality: distilled water or potable water.
| Items | Specification |
| Appearance | Free-flowing powder or granules without caking. |
| Water content,% | ≤8.0 |
| Fineness (0.315mm sieve),% | ≤15.0 |
| Initial consistency , Bc/80℃,46.5MPa,45min | ≤30.0 |
| Thickening linear mutation value, Bc. | ≤10.0 |
| Transition time, min | ≤40.0 |
| Fluid loss,ml/80℃,6.9MPa,30min | ≤150.0 |
| Free liquid,% | ≤1.4 |
| Compressive strength, MPa/102℃,21MPa,24h | ≥14.0 |
Packing, Storage
Packed in triple-layer composite paper bags, 25kg per bag.
During transportation, protect the packaging from damage. Store in a cool, dry place.
Shelf life: two years.
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