On the basis of analysis on literatures at home and abroad,the composition and advantages of clean foam fracturing fluid are described,and the current researches on its stability,rheology,proppant carrying property an...On the basis of analysis on literatures at home and abroad,the composition and advantages of clean foam fracturing fluid are described,and the current researches on its stability,rheology,proppant carrying property and low damage property are analyzed in detail.The clean foam fracturing fluid,composbd by viscoelastic surfactant,salt solution,foaming agent and gas,is prospectivefor developing unconventional oil and gas resources.This system shows strong proppant carrying capacity,low fluid loss,high fractu-ring effects,strong flowback capacity,and small formation damage,by combining the advantages of clean fracturing fluid and foamfracturing fluid.It has become a focus of fracturing fluids in recent years.Some samples are provided to demonstrate the field appli-cation results of the clean foam fracturing fluid,which further indicates that the system can improve oil well productivity with nodamages to formations.Finally,in view of formula system,foam stabilization mechanism and supporting operation processes,theprospects of clean foam fracturing fluid is pointed out.展开更多
文摘On the basis of analysis on literatures at home and abroad,the composition and advantages of clean foam fracturing fluid are described,and the current researches on its stability,rheology,proppant carrying property and low damage property are analyzed in detail.The clean foam fracturing fluid,composbd by viscoelastic surfactant,salt solution,foaming agent and gas,is prospectivefor developing unconventional oil and gas resources.This system shows strong proppant carrying capacity,low fluid loss,high fractu-ring effects,strong flowback capacity,and small formation damage,by combining the advantages of clean fracturing fluid and foamfracturing fluid.It has become a focus of fracturing fluids in recent years.Some samples are provided to demonstrate the field appli-cation results of the clean foam fracturing fluid,which further indicates that the system can improve oil well productivity with nodamages to formations.Finally,in view of formula system,foam stabilization mechanism and supporting operation processes,theprospects of clean foam fracturing fluid is pointed out.
