DOC-SMART HT cement slurry system is composed of fluid loss additive DOC-G80L and DOC-G90L, high temperature retarder DOC-H42L and DOC-H50L, silica fume and defoamer DOC-X60L. DOC-H42L and DOC-H50L used in this system are a kind of AMPS based polymer retarder, they have strong temperature resistance with a limit temperature of 210℃ and good regularity. This system is mainly used in high temperature period of cementing , which is under temperature range from 120 to 210℃. This system is applied to intermediate casing and tail pipe cementing of high temperature oil well.
System Advantages
1、Can be used under temperature ranges from 120 to 210℃.
2、Applying to surface layer and intermediate casing.
3、Can be used under circumstance temperature ranges from -10 to 40℃.
4、Can be used in cementing construction both on offshore platform and in the land.
5、API fluid loss below 50ml.
System Features
1、Strong loss control ability under high temperature.
2、Zero free fluid.
3、Well strength development of cement stone.
4、Good dispersion effect and mobility.
