The tail pipe hanger is mainly used for hydraulic transmission to achieve tail pipe suspension, and is widely used for technical tail pipe and production tail pipe cementing in oil and gas wells, brine wells, and geothermal wells. The tail pipe hanger can be used for cementing in the following situations:

1. It is possible to save a large amount of casing and costs for exploration and evaluation wells;  

2. Completing the well while reducing the load on the casing head and surface casing;  

3. Improve long-term cement injection and cementing operations to prevent low-pressure leakage;  

4. Simply and quickly seal open hole sections and deepen cementing of old wells;  

5. Provide flexible completion methods and relatively safe cementing operations;  

6. Connect the tail pipe back in the rock salt well section to enhance the sealing strength of the rock salt section;  

7. Seal the damaged section of the upper casing (corrosion, cracking, etc.).