E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/20 (2006.01) H01B 7/04 (2006.01)
Patent
CA 2747761
A cable and coiled tubing suspends an electrically powered tool in a borehole and providing the tool with electrical power by the cable, the cable being disposed in the coiled tubing, the cable incorporating a conducting member which carries the majority of the tensile stress on the cable, and without the cable being secured along its length to the inside of the coiled tubing. The cable may be capable of supplying high voltage electrical power, in which case the cable comprises a conducting member having a steel core, an outer cladding of copper, and at least one insulating layer surrounding the outer cladding of copper, the copper making up between 20% and 40% of the total copper and steel content of the cable, the cable being able to support at least its own weight.
La présente invention concerne un câble et un tube spiralé qui suspend un outil motorisé électrique dans un trou de forage et qui alimente l'outil en énergie électrique par l'intermédiaire du câble, le câble étant disposé dans le tube spiralé et incorporant un élément conducteur qui supporte la majorité de la contrainte de traction sur le câble, et sans que le câble ne soit fixé sur sa longueur à la partie intérieure du tube spiralé. Le câble peut fournir de l'énergie électrique à haute tension, auquel cas il comprend un élément conducteur qui possède une âme en acier, une gaine extérieure de cuivre, et au moins une couche isolante qui entoure la gaine extérieure de cuivre, le cuivre constituant entre 20 % et 40 % de la teneur totale en cuivre et acier du câble, le câble pouvant supporter au moins son propre poids.
Artificial Lift Company Limited
Gowling Lafleur Henderson Llp
LandOfFree
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