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A reservoir drying method for enhancing recovery of tight gas
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ZHANG Liehui,XIONG Yu,ZHAO Yulong,TANG Hongming,GUO Jingjing,JIA Chunsheng,LEI Qiang,WANG Binghe
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Table 3 Comparison of physical properties of tight cores before and after drying
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Drying experi-
mental groups | Average reduction in water saturation/% | Average increase of gas permeability/% | | Heating control group | 3.07 | 13.60 | Supercritical CO2
control group | 5.19 | 25.70 | Ethanol suspension +
drying agent | 9.63 | 54.38 | Supercritical CO2 +
drying agent | 16.21 | 163.10 |
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