Catalogue

Polycem Light lightweight backfilling composition

Polycem Light lightweight backfilling compositions are made by mixing Ultracement micronized cement with lightening and special additives and are designed for casing cementing, lost circulation control and remedial cementing in oil and gas wells at temperatures from 0 to 110°С under ALRP conditions.
Advantages of backfilling slurries based on Polycem Light compositions: low thermal conductivity of cement stone.
low permeability of cement stone due to the addition of micronized cement.
high strength, easily adjustable thickening time of the backfilling slurry.
formation of shrinkage-proof cement stone. Backfilling compositions may additionally contain a colmatage additive, in which case the letter “K” is added to the marking.

 

Product specs

Parameter	Polycem Light-1 Polycem Light-1K	Polycem Light-2 Polycem Light-2K	Polycem Light-3 Polycem Light-3K
Water-to-cement ratio	0.7-1.0	0.7-1.0	0.7-1.2
Backfilling slurry density, kg/m?	1000-1100	1100-1200	1200-1350
Spreadability, mm, NLT	170	170	170
Fluid loss, %, NMT	2.5	2.5	2.5
Thickening time until 30 Vs, min, NLT	90	90	90
Compressive strength of cement stone after 48 h, NLT	1.0	1.5	1.5

 

Application

Polycem Light-1 for backfilling slurries with density from 1000 to 1100 kg/m3. Polycem Light-2 for backfilling slurries with density from 1100 to 1200 kg/m?. Polycem Light-3 for backfilling slurries with density from 1200 to 1350 kg/m3.

 

Packaging

Polycem Light lightweight backfilling compositions are packed in specialized soft big bags.



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