Research Article
Synthesis of a Novel Filtrate Reducer and Its Application in Water-Based Drilling Fluid for Ultra-High-Temperature Reservoirs
Table 5
Comparison of fluid loss controlling of fluid loss agents in fresh water slurry.
| | Experimental slurry | Test conditions | AV (mPa·s) | PV (mPa·s) | YP (Pa) | API (mL) |
| | 3-1 basic slurry | Room temperature | 8.5 | 3 | 5.5 | 24.0 | | Room temperature after 220°C/16 h | 7 | 3 | 4 | 34.0 | | Room temperature after 245°C/16 h | 8.5 | 8 | 0.5 | 41.0 | | Room temperature | 60 | 30 | 30 | 8.4 | | Room temperature after 220°C/16 h | 4 | 1 | 3 | 12.4 | | Room temperature | 53 | 21 | 32 | 10.6 | | Room temperature after 245°C/16 h | 11 | 10 | 1 | 20.6 | | Room temperature | 40 | 28 | 12 | 7.8 | | Room temperature after 245°C/16 h | 17 | 14 | 3 | 11.0 |
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