Science – Society – Technology
Table 5 Laboratory analysis of cement slurry (Part 2/2)
From: Monitoring of a reverse cement job in a high-temperature geothermal environment
Thickening time | Free fluids | ||
|---|---|---|---|
Bearden units of consistency (bc) | Time | Surface (21 \(^{\circ }\)C) | 0 |
19 bc | 0:00 | Downhole (82 \(^{\circ }\)C) | 0 |
40 bc | 4:32:52 | ||
50 bc | 4:34:30 | ||
60 bc | 4:35:01 | ||
70 bc | 4:35:22 | ||
99 bc | 4:38:19 | ||
Surface rheology | (21 \(^{\circ }\)C) | Downhole rheology | (82 \(^{\circ }\)C) |
RPM | Dial reading | RPM | Dial reading |
600 | 302.2 | 600 | 183.3 |
300 | 189.3 | 300 | 113.8 |
200 | 135.6 | 200 | 87.4 |
100 | 76.6 | 100 | 54.8 |
60 | 50.9 | 60 | 42.5 |
30 | 33.0 | 30 | 36.3 |
6 | 18.2 | 6 | 14.3 |
3 | 32.3 | 3 | 15.1 |
PV | 144.1 cP | PV | 83.7 cP |
YP | 28.5 lbf/100 ft\(^{2}\) | YP | 24.6 lbf/100 ft\(^{2}\) |