tie back cementing Tie back liner procedureMeasure and drift the casings carefully and clean all the threads.

tie back receptacle

Use a drilling rate of 40～50rpm and a normal flow rate. Slowly lower the drill string. Polish the inner surface of the polished bore receptacle twice or three times. Each time polish 3～4min. During the last polishing, apply an additional load of 2～3t when the torque suddenly increases (the milling shoe reaches the top of the seal assembly) during the last polishing. Polish for another 2~3min and note the depth of the milling shoe, which is an important clue for the casing setting depth.

Features of Hydraulic Liner Hanger Tie-Back Assembly

With its streamline shape, the guide shoe can stab into polished bore receptacle easily.

Saigao Group