Simulation Analysis and Experimental Research of Hydraulic Cutting Based on LSDYNA
In order to make up for the shortcomings of the traditional underground windowing method,abrasive water jet technolo-gy is gradually applied to this field.Based on the actual underground application,ifa(30×50)mm hole is opened,the formation can continue to be jetted to achieve one-time windowing and rock breaking.Abrasive water jet technology has the characteristics of high efficiency,no burr and simple nozzle structure.LSDYNAsoftware is used to simulate the erosion of casing wall by abrasive wa-ter jet.The first experiment is used to determine the simulation model,and the second experiment is used to verify the model.The simulation model is used to simulate the nozzles with different structures,which provides a basis for the development of nozzles that can cut(30×50)mmholes and saves the experimental cost.
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