Description
The SYH_3, proposed and developed latterlyadapts to
cementing in mid and hight temperature condition. Under 90~220℃, it can
act with the cement particle surface ,so it prevents the cement
hydrating, prolongs the thickening time of slurry.SYH_3 has very well
compatibility with other additives in cement slurry. There is no effect
on cement compressive strength when curing temperature is higher than
BHCT. There is certain effect on cement compressive strength when curing
temperature is lower than BHCT.
SYH_3 can be applied to API oil_well cement. Mixed with
density adjustor, such as microsphere, bentonite, flyash, ilmenite,
barite, it could be mixed into different density. It is suggested to be
used together with SY series fluid loss control agents and dispersant
SYJZ_1, So as to get cementing slurry with excellent combination
property.
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