A Sduty on Pressure Distribution of Wellbore in CO_2 Foam Fracturing

Making the right pump pressure choice is very important to fracturing, but pressure distribution of wellbore directly affects the value of pump pressure.Present methods exist some problems.Based on these present methods,this article takes the changes of foam quality,density and rheological parameters of foam fracturing fluid into account,and summarizes the basic theoretical model of pressure distribution of CO2 foam fracturing fluid in the injection process.This method is practical to a certain extent and has applied to forecast a certain well,which indicates that it has the advantage of simple calculation and high precision.