Research Article
Effect of Nitric Acid on the Low Fluorescing Performance of Drilling Fluid Lubricant Based Animal and Vegetable Oils
Table 3
Rheology variation of brine mud before and after adding E167.
| | Experimental condition | Content of E167 (%) | AV (mPa·s) | PV (mPa·s) | YP (Pa) | FLAPI (mL) |
| | Room temperature | 0 | 4.5 | 2 | 2.4 | 66 | | 0.5 | 4.8 | 3 | 2.2 | 66 | | 1.0 | 5.0 | 3 | 2.4 | 68 |
| | 150°C × 16 h | 0 | 3.5 | 3 | 1.0 | 104 | | 0.5 | 3.7 | 3 | 1.2 | 96 | | 1.0 | 4.0 | 3 | 1.4 | 86 |
| | 180°C × 16 h | 0 | 3.7 | 2 | 1.0 | 112 | | 0.5 | 4.0 | 2 | 2.4 | 106 | | 1.0 | 4.3 | 3 | 1.2 | 94 |
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