Continous power/signal conductor and cover for downhole use
AssigneeBaker Hughes Incorporated
InventorsWilliam Edward Aeschbacher, David G. Korte, Larry V. Dalrymple
Life of this patent
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Abstract
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.
Claims22
A method of manufacturing a cable assembly for downhole use comprising:
- covering a predetermined length of conductor, which is sufficiently long to reach from the surface of a wellbore to a component downhole, with a continuous spacer having a tubular hub which encases the conductor and at least one radially extending fin from said hub;
- forming a continuous cover tube around said spacer by rolling sheet around said spacer into a tubular shape with a single longitudinal joint;
- offsetting said fin from said joint;
- and
- sealingly closing said joint without damaging said fin.
Dependencies are inferred from the claim text.