When are anti-rotation wedges required for Thrust-Lock pipe?
• Wedges are required at the 3 and 9 o’clock positions when pipe is used as a carrier pipe within a casing. As pipe is pushed through casing it has a tendency to roll, these wedges are used to insure the pipe stays locked together when the pipe is being pushed through the casing. It is recommended to test pipe in casings separately from the rest of the waterline.
