Retarder
GENERAL DESCRIPTION
SMLZ-208 is a highly effective cement retarder to control the thickening time of cement slurry in Oilfield industry. It is a free flowing powder that may be dry blended with cement before mixing and may be used to control the setting of slurry for bottom hole circulating temperatures up to 250℉.
In saturated salt slurries it may be used to 350℉.
In fresh water cementing systems it may be used up to 430℉.
SMLZ-208 has a retarding and dispersing effect on the cement slurry during placement.
SMLZ-208 may be used for retarding any API cement (A, C, G or H). It may be used with other cement additives such as fluid loss additives, silica flour, dispersants, defoamers and weighting materials.
PERFORMANCE
Thickening Time data in Class H Cement containing 0.5% SMLZ-108
| SMLZ-208,%BWC | 150F | 180F | 200F |
| 0.5 | 4:53 | 4:38 | 4:41 |
Thickening time date in Class H Cement containing 0.5% SMLZ-108
| SMLZ-208 ,%BWC | Test temperature | Thick time, H:mm | 24hr.UCA strength, PSI |
| 0.2 | 245F | 5:15 | 3750 |
| 0.5 | 277F | 6:58 | 2550 |
| 1.0 | 348F | 6:00 | 2700 |
PACKAGE and STORAGE
50lb net per bag. Store in a dry, well-ventilated area. Keep the package closed. Follow safe warehousing practices regarding, palletizing, banding, shrink-wrapping and/or stacking.
