POSITION MAKE-UP INDICATOR SYSTEM.

摘要

A method by which threaded pipe sections are connected to form a tubular joint having proper sealing positioning at proper make-up torque. This is accomplished by manufacturing a make-up stencil plate for each specific size of pipe to be coupled. The plate is manufactured at the specific taper and make-up loss of a given connection with very tight tolerance. The plate is placed on the pin pipe end of the connection. A dial indicator with a magnetic base is placed on the outer surface of the pipe pin end with the indicator flush with the end of the stencil plate. Once the indicator is set to zero, the stencil plate is removed and the coupling is installed on the pin connector hand tight. Then a bucking unit or power tong is applied to the coupling to screw the coupling onto the pin.