Electrical cable for downhole applications
An electrical cable for use in a downhole application is provided. The cable includes an elongated support layer and an array of insulated conductors bonded to said elongated support layer. The elongated support layer substantially bears a weight of the conductors.
1. An electrical cable for use in a downhole application, the cable comprising:
a first elongated support layer providing mechanical strength, the electrical and physical properties of said first elongated layer remaining essentially unaffected by the absorption of fluids including oil, water and gas;
a second elongated support layer; and
an array of insulated conductors bonded between said first and second elongated support layers, said first elongated support layer substantially bearing a weight of said conductors.
2. The cable of claim 1 wherein each of said insulated conductors includes a conductor and a insulation encapsulating said conductor.
3. The cable of claim 2 wherein said insulation is bonded between said first and second elongated support layers.
4. The cable of claim 1 wherein said first elongated support layer is non-conductive.
5. The cable of claim 2 wherein said insulation includes PEEK.
6. The cable of claim 5 wherein said first elongated support layer includes PEEK.
7. The cable of claim 6 wherein said first elongated support layer further includes fiberglass, or, Kevlar® fiber, or carbon fiber.
8. The cable of claim 2 further including an adhesive bonding said conductors between said first and second elongated support layers.
9. The cable of claim 2 wherein said insulation welded between said first and second elongated support layers.
10. The cable of claim 1 wherein said first elongated support layer withstands traction loads of approximately 500 Kg.
11. The cable of claim 1 wherein said conductors include copper.
12. The cable of claim 1 wherein said conductors withstand currents substantially equal to 1 Ampere.
13. The cable of claim 1 said cable having a weight substantially equal to ⅛ kilo per meter.
14. The cable of claim 1 further including a jacket formed onto the insulated conductors.
15. The cable of claim 2 wherein each insulation has a lateral side, where adjacent lateral sides of adjacent insulations form an interface that prevent a fluid from migrating along the cable between said adjacent lateral sides of adjacent insulations.
16. The cable of claim 15 wherein each insulation has a cross section having a squared shape or a rectangular shape.