CF410’s dispersive action on cement particles makes it possible to reduce cement slurry’s consistency, enhance its liquidity as well as rheological behavior and thus to ensure a safe and quality cementing operation. Our dispersant has a wide applicable temperature range which is from 30℃-180℃(86℉-356℉,BHCT), therefore, it is extensively applied in deep wells’cementing operation at home and abroad. Moreover, CF410 is salt resistant and still has a good performance in 5%-10% brine cement slurry. Also, it has no special requirements on the quality of mixing water. Being the first-class high-temperature dispersant in China, CF410 not only has outstanding dispersive performance, but possesses good adaptability to cement slurry and excellent compatibility with other additives as well.