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The biodiesel-based flat-rheology drilling fluid system
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JIANG Guancheng,SHI He,HE Yinbo
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Table 10. HTHP rheology of the biodiesel-based flat-rheology drilling fluid with a density of 1.2 g/cm3
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| Temperature/°C | Pressure/MPa | Apparent viscosity/(mPa·s) | Plastic viscosity/(mPa·s) | Yield point/Pa | Φ6 | Φ3 | | 70 | 34.29 | 36.7 | 27.5 | 9.40 | 10.8 | 9.6 | | 90 | 44.59 | 29.5 | 20.9 | 8.79 | 9.3 | 7.7 | | 120 | 58.78 | 24.8 | 18.5 | 6.44 | 6.6 | 5.4 | | 150 | 73.48 | 19.3 | 16.2 | 3.17 | 3.7 | 2.6 | | 180 | 88.18 | 16.5 | 15.8 | 0.71 | 1.4 | 1.1 | | 210 | 102.87 | 16.3 | 16.1 | 0.20 | 1.2 | 0.6 |
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