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Air-SAGD technology for super-heavy oil reservoirs
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Yongrong GAO,Erpeng GUO,Dehuang SHEN,Bojun WANG
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Table 6 The statistics of production effects of steam and air LTO and air LTO.
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| Injection mode | Production
time/d | Cumulative oil
production/104 m3 | Cumulative amount of steam (air) injected/104 m3 | Oil steam
ratio | AOR | Recovery
factor/% | Oil recovery
rate/% | | Steam+air | 2 000 | 2.98 | 69.6(7 000) | 0.05 | 2 350 | 12.2 | 2.02 | | Air | 2 000 | 1.03 | 0(7 000) | | 6 796 | 4.2 | 0.70 |
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