The tieback seal nipple and polished bore receptacle are used together for liner tieback operation. The streamline shape guiding nose of the tieback seal nipple ensures smooth entry into the polished bore receptacle and the resistant sealing rings ensure reliable sealing.

Features：1.Special structure of the tie back seal nipple makes it more reliable than a conventional stinger      
          2.Reliable sealing and excellent corrosion resistance

 
        Property Parameters
 

Specifications（mm）	Ф114.3 （4"）～Ф273（10"）
Sealing length（mm）	≥1000
Sealing capacity(MPa)	≥25
Rated temperature(℃)	-35～170
Nipple min I.D.(mm)	108.6～245