Downhole cables with both fiber and copper elements

G - Physics – 02 – B

Patent

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Details

G02B 6/44 (2006.01) E21B 47/12 (2006.01)

Patent

CA 2656843

Provided is a method of manufacturing a downhole cable, the method including, forming a helical shape in an outer circumferential surface of a metal tube, the metal tube having a fiber element housed therein, and stranding a copper element in a helical space formed by the metallic tube. Also provided is a downhole cable including, a metallic tube having a helical space in an outer circumferential surface thereof, wherein the metallic tube has a fiber element housed therein, and a copper element disposed in a helical space formed by the steel tube. Double-tube and multi-tube configurations of the downhole cable are also provided.

L'invention concerne un procédé de fabrication d'un câble de fond de trou. Ce procédé consiste : à produire une forme hélicoïdale dans une surface circonférentielle extérieure d'un tube métallique, un élément fibreux étant logé dans le tube métallique; et à toronner un élément en cuivre dans un espace hélicoïdal formé par le tube métallique. L'invention concerne également un câble de fond de trou qui comprend : un tube métallique dans une surface circonférentielle extérieure duquel est ménagé un espace hélicoïdal, un élément fibreux étant logé dans le tube métallique; et un élément en cuivre disposé dans un espace hélicoïdal formé par le tube d'acier. L'invention concerne également des configurations à double tube et à tubes multiples dudit câble de fond de trou.

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