A reservoir drying method for enhancing recovery of tight gas

ZHANG Liehui,XIONG Yu,ZHAO Yulong,TANG Hongming,GUO Jingjing,JIA Chunsheng,LEI Qiang,WANG Binghe

Table 1 Drying efficiency on different pore structure models

Pore structure model Surface porosity/% Irreducible water saturation/% Water saturation after drying/% Drying efficiency/% Spot-shaped throats 30.98 45.58 24.21 46.89 Flaked/curved throats 17.77 41.14 1.70 95.87