Oil Field Cementing Applications
Our Selvol™ polyvinyl alcohol resin works ideally as a fluid loss control additive in oil field cementing applications. When mixed with Class H cement powder, water, a dispersant and a defoamer, this nonionic, low viscosity-producing additive prevents fluid from being lost to the formation in intermediate cementing operations. At bottom-hole circulating temperatures of up to 190 degrees Fahrenheit, it is the most common fluid loss control additive in the world.
Moreover, an added benefit of using Selvol™ PVOC in oil field cementing applications is that it does not slow the set time at bottom-hole circulating temperatures.
Recipe for Success
Normal range for use in wells: 80°F to 190°F
Concentration: 0.5-2.0% BWOC
| Slurry 1 | Slurry 2 | ||
|---|---|---|---|
| Composition | Deionized water | 39% BWOC | 39% BWOC |
| Selvol™ Premiol LTC 90 | 0.75% BWOC | 1% BWOC | |
| Daxad 19 | 0.25% BWOC | 0.5% BWOC | |
| FP-6L | Remainder | Remainder | |
| Class H cement | 0.75% BWOC | 1% BWOC | |
| Test Temperature | 110°F | 110°F | |
| FANN Rheology | 300 rpm | 140 | 136 |
| 100 rpm | 55 | 53 | |
| 6 rpm | 4 | 4 | |
| 3 rpm | 3 | 3 | |
| PV, cPs | 128 | 125 | |
| YP, pound/100 square feet | 13 | 12 | |
| Filtration, 100 psi | Average API fluid loss ml/30 min | 40 | 31 |
