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Carbon dioxide/calcium oxide responsive behavior and application potential of amine emulsion
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REN Yanjun,LU Yanyan,JIANG Guancheng,ZHOU Wenjing,WU Liansong,YAO Rugang,XIE Shuixiang
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Table 1 Basic properties of drilling fluids.
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Oil/water
volume ratio | Density/
(g•cm-3) | Apparent viscosity/
(mPa•s) | Settling after ageing | Water loss/mL | Filter-cake
thickness/mm | Emulsion- breaking
voltage/V | | 50∶50 | 1.4 | 50.0 | No | 1.6 | <1.0 | 636 | | 1.6 | 60.5 | No | 2.0 | <1.0 | 679 | | 1.8 | 76.5 | No | 3.6 | 2.0 | 652 | | 2.0 | 94.5 | No | 4.8 | 3.0 | 528 | | 60∶40 | 1.4 | 49.0 | No | 0.2 | <1.0 | 735 | | 1.6 | 55.0 | No | 1.8 | <1.0 | 711 | | 1.8 | 64.5 | No | 2.8 | 1.5 | 673 | | 2.0 | 73.0 | No | 4.0 | 2.0 | 599 | | 70∶30 | 1.4 | 30.0 | No | 0.1 | <1.0 | 759 | | 1.6 | 37.0 | No | 0.2 | <1.0 | 754 | | 1.8 | 43.0 | No | 1.0 | 1.0 | 771 | | 2.0 | 55.0 | No | 2.0 | 1.5 | 656 |
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