초록 ▼

Conductors are placed in insulator which acts as a spacer/centralizer for the conductors, which are in turn mounted within tubing. The void spaces between the insulator and the tubing inside wall can be filled with a sealing material. Alternatively, the voids around the substantially centralized con

Conductors are placed in insulator which acts as a spacer/centralizer for the conductors, which are in turn mounted within tubing. The void spaces between the insulator and the tubing inside wall can be filled with a sealing material. Alternatively, the voids around the substantially centralized conductors can be used as flow channels for the transmission of fluid pressure to a remote location, such as downhole. The conductors are protected because they are kept away from the tubing wall and can be further protected by the addition of the sealing material.

대표청구항 ▼

[ We claim:] [1.] An assembly for power or signal transmission between the surface of a well and a downhole component, comprising:a continuous metallic cover tube made from at least one sheet rolled into a tube to create a long seam and being of a sufficient length to reach, at one end, from a surfa

[ We claim:] [1.] An assembly for power or signal transmission between the surface of a well and a downhole component, comprising:a continuous metallic cover tube made from at least one sheet rolled into a tube to create a long seam and being of a sufficient length to reach, at one end, from a surface of a well to, at another end, a downhole component without any Intermediate connections;at least one conductor extending continuously through said cover tube from said surface to said downhole component;a nonmetallic spacer comprising at least one extending member extending from a core which surrounds said at least one conductor to space said at least one conductor; andsaid cover tube Is formed by rolling said sheet over said at least one conductor to create said seam offset from said at least one extending member so that a weld of said seam is not damaged by said at least one extending member, as said cover tube is formed over said spacer.