Formation damage can be minored by using CO2 foam fracturing fluid as it has low filtration, high flowback and good compatibility with formation fluids.

• 由于CO2泡沫压裂液具有滤失量低、返排能力强、与地层流体配伍性良好等优点,采用CO2泡沫压裂技术,可减小压裂液对地层的伤害。