| 摘要 |
The invention disclosed herein includes a reducer coupling (10), a positioner tool (P) for connecting the coupling to a conduit section, and a nut (11) for securing the positioner tool (P) to the coupling. The reducer coupling (10) is useful in various operations, such as some oil field operations in which it is used to connect a smaller conduit (delivery line) into a larger conduit (production casing). In practice, the positioner tool (P) is secured to the reducer coupling (10) and the coupling is moved into its hook-up position above the production casing, by attaching a rig to the positioner tool. The coupling can then be threaded into the casing by turning the positioner tool with a wrench, or similar tool. |
