Oil Field Cementing Application FAQs
How does Selvol PVOH function as a fluid loss control additive in oil field cementing?
Selvol Premiol LTC 90 acts as a nonionic, low viscosity-producing additive in oil field cementing slurries. When combined with Class H cement, water, dispersant and defoamer, it prevents fluid loss to the formation in intermediate cementing operations without slowing set time.
What temperature range is Selvol Premiol LTC 90 rated for in cementing operations?
Selvol Premiol LTC 90 performs effectively at bottom-hole circulating temperatures up to 190°F. The normal operating range for wells is 80°F to 190°F. It’s the most common fluid loss control additive globally across a wide range of intermediate cementing conditions.
At what concentration should I use Selvol Premiol LTC 90 in a cementing slurry?
Typical concentration is 0.5–2.0% by weight of cement (BWOC). Our slurry data shows that 0.75% BWOC achieves an average API fluid loss of 40 ml/30 min at 110°F, while 1.0% BWOC reduces that to 31 ml/30 min. Adjust concentration based on your specific formation and temperature conditions.
Does Selvol Premiol LTC 90 affect cement set time?
No. Using Selvol Premiol LTC 90 in oil field cementing applications does not slow set time at bottom-hole circulating temperatures within the rated operating range. This is a key advantage over some competing fluid loss additives.
Can SEKISUI products handle deep well environments or help us consolidate our fluid loss additive inventory?
Yes. Selvol Premiol DWC-50 delivers exceptional fluid loss control across a wide temperature spectrum from 50°C up to 150°C. This broad performance range allows oilfield service operators to markedly reduce and consolidate their onsite chemical inventories.
Consult our Technical Service Team to map your specific wellbore temperatures to the right Premiol grade.
