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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 3 Test results of core permeability.
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| Experimental condition | Permeability before experiment/μm2 | Permeability after experiment/μm2 | Permeability reduction rate/% | Steam
injection | 1.399 | 1.375 | 1.72 | | 1.259 | 1.243 | 1.27 | | 1.308 | 1.298 | 0.76 | Steam + air
injection | 1.265 | 1.169 | 7.59 | | 1.375 | 1.278 | 7.05 | | 1.338 | 1.259 | 5.90 |
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