Application and Analysis of Single Rubber Tube and Packer Tieback Tools

The drilling liner cementing has an unsolved problem with complex geological conditions of Yuanba gas field in northeast of Sichuan province,such as high temperature and high pressure,high sulfur,deep well depth.The cementing quality of overlapping period is poor,easily leading to oil,gas and water channeling.These problems seriously affect the continuous drilling operation and normal production of oil wells.Packer tieback device can be used to solve the problems of poor cementing quality of drilling liner overlapping section.This paper provides the comprehensive information about the new type packer tieback tools and field application.