Combination fiber-optic/electrical conductor well logging cable

Details Combination fiber-optic/electrical conductor well logging cable Combination fiber-optic/electrical conductor well logging cable

H - Electricity

01

B

H01B 11/22 (2006.01) E21B 17/20 (2006.01) E21B 47/12 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2225153

A well logging cable including first conductor elements each consisting of a steel wire surrounded by copper strands and covered in an electrically insulating material, and at least one second conductor element including at least one optical fiber enclosed in a metal tube, conductive cladding bonded to the interior wall of the tube, and the tube being covered by the electrically insulating material. The first elements and the at least one second element are arranged in a central bundle. The second conductor element is positioned within the bundle so as to behelically wound around a central axis of the bundle. The bundle is surrounded byarmor wires helically wound externally to the bundle.

Câble de diagraphie comportant un premier ensemble d'éléments conducteurs constitués chacun d'un fil d'acier entouré de torons de cuivre et couvert d'un matériau d'isolation électrique. Ce câble comporte également un deuxième ensemble constitué d'au moins un élément conducteur muni d'au moins une fibre optique dans un tube métallique et d'une gaine conductrice collée sur la paroi intérieure du tube, le tube étant couvert d'un matériau électriquement isolant. Les premiers éléments et le ou les deuxièmes éléments sont disposés dans un faisceau central. Le deuxième élément conducteur est placé dans le faisceau de manière à s'enrouler hélicoïdalement autour de l'axe central du faisceau. Ce dernier est entouré de fils blindés, enroulés hélicoïdalement sur sa partie extérieure.

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