TUBING HANGER ASSEMBLY AND METHOD OF USING SAME FOR HANGING TUBING IN A WELL UNDER PRESSURE

摘要

A tubing hanger assembly and method of using same for hanging tubing in a well under pressure, wherein tubing having a smooth external surface and a check valve at its lower end, is gripped and sealed off in the hanger and then the wellhead equipment above the tubing hanger is removed so that the tubing is thereafter available for injecting chemicals into the well and for performing similar well operations.