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Super-amphiphobic, strong self-cleaning and high-efficiency water-based drilling fluids
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JIANG Guancheng,NI Xiaoxiao,LI Wuquan,QUAN Xiaohu,LUO Xuwu
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Table 8 Basic performance parameters of drilling fluid used in Well HW8003.
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| Well depth/m | Density/(g·cm-3) | AV/(mPa?s) | PV/(mPa?s) | YP/Pa | (Initial gel strength/final
gel strength)/Pa | Filtration/mL | | 2 186 | 1.38 | 34.0 | 28 | 6.5 | 1.5/5.0 | 2.4 | | 2 329 | 1.38 | 41.0 | 33 | 9.5 | 2.5/7.5 | 2.8 | | 2 553 | 1.38 | 39.0 | 29 | 10.0 | 5.0/11.5 | 3.6 | | 2 778 | 1.39 | 39.0 | 27 | 10.0 | 4.0/10.0 | 3.2 | | 2 973 | 1.39 | 31.0 | 23 | 8.0 | 3.5/8.0 | 4.0 | | 3 202 | 1.39 | 40.0 | 32 | 8.0 | 4.0/11.5 | 3.2 | | 3 406 | 1.39 | 36.5 | 28 | 8.5 | 3.5/11.0 | 3.2 | | 3 736 | 1.39 | 37.0 | 30 | 7.0 | 3.0/8.0 | 3.2 |
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