CO2 flooding and channeling sealing system and method for regulating and controlling gas channeling by CO2 flooding and channeling sealing system

The invention relates to the technical field of oil and gas field development, in particular to a CO2 flooding and channeling sealing system and a gas channeling regulation and control method thereof.The CO2 flooding and channeling sealing system comprises an oil-soluble surfactant and supercritical CO2, the volume ratio of the oil-soluble surfactant to the supercritical CO2 is 1: 1000-50: 1000 at the temperature of 60-80 DEG C and the pressure of 30-35 MPa, and the CO2 flooding and channeling sealing system has the advantages that injection is convenient, water-sensitive damage and corrosion are reduced, and the oil flooding effect is good. 本发明涉及油气田开发技术领域，具体涉及一种CO2驱封窜体系及其调控气窜的方法，所述CO2驱封窜体系，包括油溶性表面活性剂和超临界CO2，在温度60-80℃及压力30-35MPa下，两者体积比为1:1000-50:1000，具有方便注入、降低水敏伤害和腐蚀、驱油效果好的优点。