Structure and Casing Running Operation of TP-CQ Specially-threaded Casing

The TP-CQ specially-threaded casing connecting features for its perfect anti-galling,reliable air tightness and high connecting strength.Its structure,performance and casing running operation are introduced,and it puts forward the recommended practice for lifting and putting down of TP-CQ specially-threaded casing,which can be used as reference for avoiding the damage of casing and its connecting caused by miss-operation.