Liquid CO2 phase transition fracturing involves a physical expansion process using CO2 as the medium,characterized by its excellent safety,controllability,and applicability.Currently,there are few case studies on the application of this technology in subaqueous reef cleaning,and there is a lack of instructive operational schemes.Based on the example of the wharf project in Yangkeng operation area of Yanping New City Port,Nanping Port,Fujian,the calculation method of CO2 phase transition fracturing single-hole energy and the preliminary value of TNT equivalent required for a cubic reef fracturing are proposed,and the calculation method of main technical parameters of this technology in subaqueous reef clearing construction is described.
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