Micro Matrix® Cement Retarder (MMCR) is a liquid retarder designed for use in Micro Matrix cement.
MMCR can be used at bottomhole circulating temperatures (BHCTs) between 140°F and 250°F (60° and 121°C). Normal MMCR concentrations are 0.04 to 0.24 gal of retarder per 50-lb bag of Micro Matrix cement.
MMCR exhibits extreme retardation in conventional cements and should be used in Micro Matrix cement only. Operators should use caution when mixing Micro Matrix cement with conventional cement for the same job.
Micro Matrix cement retarder provides the following benefits:
Extended pumping times
Early cement-strength development
More predictable thickening times
Adaptability for offshore use
Improved slurry displacement rates at steady pressures
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