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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