1. Summary
The conventional oil well cement is below 30 ℃, the hydration rate is low, the waiting time is long and the operation progress is delayed during the construction process. DOC-A90L is the early strength agent of inorganic salt cement slurry. It has the characteristics of low cost and good effect, and it can play an obvious early strong effect in the temperature range of 10 ℃ to 30 ℃. It is suitable for low temperature surface casing cementing.
2. Technical Data
Items | Index |
Appearance | Yellow liquid |
Density,g/cm3 | 1.1-1.2 |
pH, 2% water solution | 8-9 |
20 mesh margin, % | ≤2 |
Performance index of cement slurry
Items | Index |
Thickening time, min (27℃, 15MPa) | ≤150 |
Initial consistency,Bc | ≤22 |
Compressive strength, MPa (27℃, atmospheric pressure, 8h） | ≥6 |
Note: cement slurry is composed of (1.9 g/cm3): G grade oil well cement, fresh water / sea water. | |
3. Usage
1） Recommended wet mixing. Mixing water can be sea water, and can also be fresh.
2） The temperature is 3 ~ 120℃.
3） Amount of addition: 3.0~6.0%（BWOW）.
4. Packing
Plastic drum. It can also be packed in accordance with customer requirements.
5. Storage
Store in a ventilated, cool and dry environment to avoid sun and rain. The shelf life is 12 months.
