| 摘要 |
19 DOWNHOLE CABLES WITH BOTH FIBER AND COPPER ELEMENTS ABSTRACT 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 O 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. |
