Downhole cables having extruded aluminum encapsulation layers

Abstract

A downhole cable includes a central core. The central core includes a metal tube having a plurality of optical fibers therein or a copper wire. The downhole cable further includes an extruded aluminum tube surrounding the central core.

1 . A downhole cable, comprising:
 a central core, the central core comprising a first metal tube having a plurality of optical fibers therein or a copper wire therein;   a first extruded aluminum tube surrounding the central core;   a second metal tube surrounding the first extruded aluminum tube; and   a second extruded aluminum tube surrounding the second metal tube, wherein the second extruded aluminum tube comprises an outermost exterior surface of the cable.   
     
     
         2 . The downhole cable of  claim 1 , wherein the downhole cable has a maximum outer width of less than or equal to 12 millimeters. 
     
     
         3 . The downhole cable of  claim 1 , wherein the downhole cable has a circular cross-sectional profile. 
     
     
         4 . The downhole cable of  claim 1 , wherein the downhole cable has a square cross-sectional profile. 
     
     
         5 . The downhole cable of  claim 1 , wherein the first extruded aluminum tube directly contacts the central core. 
     
     
         6 - 9 . (canceled) 
     
     
         10 . The downhole cable of  claim 1 , wherein each of the first metal tube and the second metal tube comprises a stainless steel or a nickel alloy. 
     
     
         11 . (canceled) 
     
     
         12 . A downhole cable, comprising:
 a central core, the central core comprising a first metal tube having a plurality of optical fibers therein or a copper wire therein;   a first extruded aluminum tube surrounding and directly contacting the central core,   second metal tube surrounding and directly contacting the first extruded aluminum tube; and   a second extruded aluminum tube surrounding and directly contacting the second metal tube;   wherein the second extruded aluminum tube comprises an outermost exterior surface of the cable and the downhole cable has a maximum outer width of less than or equal to 12 millimeters.   
     
     
         13 . The downhole cable of  claim 12 , wherein the downhole cable has a circular cross-sectional profile. 
     
     
         14 . The downhole cable of  claim 12 , wherein the downhole cable has a square cross-sectional profile. 
     
     
         15 . (canceled) 
     
     
         16 . (canceled) 
     
     
         17 . A downhole cable, comprising:
 a central core, the central core comprising a first metal tube having a plurality of optical fibers therein or a copper wire therein;   a first extruded aluminum tube surrounding the central core;   a metal pipe disposed between the central core and the first extruded aluminum tube; and   a second extruded aluminum disposed between the metal pip and the first extruded aluminum tube;   wherein the first extruded aluminum tube comprises an outermost exterior surface of the cable and the downhole cable has a maximum outer width of less than or equal to 12 millimeters.   
     
     
         18 . The downhole cable of  claim 17 , wherein the downhole cable has a circular cross-sectional profile. 
     
     
         19 . The downhole cable of  claim 17 , wherein the downhole cable has a square cross-sectional profile. 
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . The downhole cable of  claim 17 , wherein the metal pipe comprises a stainless steel or a nickel alloy. 
     
     
         23 . (canceled)