A new technique dealing with XHP permanent packers for deep wells

XHP permanent packer can effectively ensure the safe and efficient production of a deep, high temperature, high pressure, and high yielding gas well, but it's difficult to deal in the later workover process. On the basis of failure experience in early days, and combined with the analysis of the structure principle of XHP permanent packer, this paper summarizes a new technique dealing with XHP permanent packer, which can lead to a substantial increase in workover aging by changing the processing approach of packer body and seal pot, and by optimizing ring-milling tools. We first make seal pot upside down, and then salvage packer body, which provides a new method for the successful treatment of XHP permanent packer.