| 摘要 |
<p>An improved tubing (100) for use in a well bore has an insert (200) installed, preferably coaxially, within the improved tubing. The insert (200) has projections (222) at each end such that when two inserts are placed end to end, the projections mate. The insert (200) has at least one groove (244) cut into its outside and running the length of the insert for the placement of a wire (246) (such as electrical or optical) for transmission of power or data to and from the well bore. The insert (200) may contain as many groove (244) and wire (246) combinations as are necessary. The wire (246) has a connector (224,264) at each end of the insert (100). When the inserts (200) are placed end to end, the insert projections (222) line up the electrical connectors (224,264) for correct mating of the electrical connectors. Preferably the insert (200) is secured by welding or some other method inside the tubing (100). A threaded coupler (300) protects the exposed insert (200) and electrical connectors (224,264) and secures individual pieces of improved tubing (100) together to form an elongated tubing string having transmission capability. <IMAGE></p> |
