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Introduction of Cement Slurry System (Part 4)

Formula performance:

Typical slurry formula:

100% G grade cement + seawater + 5% amps fluid loss additive + 0.5% ZOC-CH211L + 0.3% ZOC-X60L

Performance:

Density (g/cm³)

Temperature(℃)

Thickening time(min)

Rheometer reading

Θ600/Θ300/Θ200/Θ100/Θ6/Θ3

API Water Loss

(ml)

Compressive Strength(MPa)

1.90

80

224

208/130/95/55/8/4

32.8

24.6

 

Key points of system use and maintenance:

(1) When the temperature is lower than 110 ℃, it is recommended to use medium temperature retarder with dosage of 0.3-2%; when the temperature is higher than 110 ℃, it is recommended to use high temperature retarder with dosage of 1-4%.

(2) ZOC-G80L and ZOC-G86Lare recommended for seawater cement slurry system with temperature less than 110 ℃, and ZOC-G87L is recommended for seawater cement slurry system with temperature greater than 110 ℃, and fresh water is used for slurry preparation.

In the case of good rheology, dispersant is not suitable.