Oil Cementing ChemicalsCurrent page: Home > Oil Cementing Chemicals
SUMMARY
- ST610S-P-AL is a high efficient fluid loss additive with high purity and low dosage.
- ST610S-P-AL is applicable in a wide temperature range and is resistant to high temperature.
- ST610S-P-AL has salt resistance and is resistant to saturated brine.
- ST610S-P-AL slurry system is stable with little free fluid.
- ST610S-P-AL slurry system is not retarded, fast strength development.
- ST610S-P-AL slurry system has excellent rheological behavior. It doesn’t require adding additional dispersant.
- ST610S-P-AL is suitable for both water and dry mixed. It has no special requirement on the quality of mixing water and is soluble in cold water.
- ST610S-P-AL can be made into dry mixed type ST610S-D-AL through mixing with materials such as slag, silica flour, fly ash; also made into dry and water mixed dual purpose type ST610S-T-AL.The weight percentage of ST610S-P-AL is 40-60% when made into ST610S-D-AL and ST610S-T-AL.
- ST610S-P-AL can be made into liquid product ST610L-AL through dissolving in the water. The weight percentage of ST610S-P-AL is 20%-30% when made into ST610L-AL.
SPECIAL ATTENTIONS
- ST610S-P-AL’s dosage should be increased if used in brine and high temperature system.
- When ST610L-AL prepared with ST610S-P-AL is not used at once, specialized bactericide should be added to extend the expiration period.
PHYSICAL AND CHEMICAL INDICATORS
| Appearance |
Bulk Density g/cm3 |
Water-Solubility |
0.315mm Sieve (45 mesh) Residues % |
|
white or faint yellow powder |
0.70±0.20 |
100% |
<12 |
CEMENT SLURRY PERFORMANCE
| Item |
Test Condition |
Technical Indicator |
|
Initial consistency, Bc |
80℃/45min, 46.5MPa |
≤25 |
|
Thickening time, min |
50—150 |
|
|
Fluid loss, ml |
80℃, 6.9MPa |
≤50 |
|
18% brine fluid loss, ml |
120℃, 6.9MPa |
≤150 |
|
Free fluid, % |
80℃, Atmospheric Pressure |
≤1.4 |
|
24h compressive strength, MPa |
≥14 |
|
|
Composition(fresh water system):API class G(HSR) 700g;mixed water 308g;ST610S-P-AL 6.3g(0.9%); |
||
APPLICATIONS
Application temperature: lower than 302℉ (150℃) (BHCT) in fresh water system, lower than 356℉ (180℃) in brine system.
Dosage: ST610S-P-AL generally 0.6-2.0% (BWOC), recommended amount 0.9% (BWOC, fresh water system W/C=0.44).
PACKING
ST610S-P-AL is packed with 25kg bag. It can also be packed according to user requirements.
