Coiled tubing supported electrical cable having indentations

H - Electricity – 01 – B

Patent

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Details

H01B 11/00 (2006.01) E21B 17/10 (2006.01) E21B 17/20 (2006.01) E21B 19/22 (2006.01) E21B 43/12 (2006.01) F16L 7/00 (2006.01) H02G 1/08 (2006.01)

Patent

CA 2238155

An electrical line for installation in a well for transmitting power to a well pump includes a string of coiled tubing. An electrical cable having insulated electrical conductors embedded within an elastomeric jacket extends longitudinally through the interior passage of the tubing. Retainers are mounted to the electrical cable and spaced longitudinally apart from each other. An indentation is integrally formed in the tubing adjacent each of the retainers. Each indentation protrudes into the interior passage of the tubing and creates a ledge which is contacted by one of the retainers when the electrical line is installed in the well. The indentations and retainers transfer weight of the electrical cable to the tubing. Weld material is filled into the depression on the surface created by each indentation.

Ligne électrique à installer dans un puits afin de transporter le courant jusqu'à une pompe de puits comprenant une longueur de tube d'intervention enroulé. Un câble électrique muni de conducteurs électriques isolés encastrés dans une gaine d'élastomère s'étend longitudinalement par le passage intérieur du tube. Des dispositifs de retenue sont fixés au câble électrique et espacés longitudinalement les uns des autres. Une dentelure fait intégralement partier du tube adjacent à chaque dispositif de retenue. Chaque dentelure fait saillie dans le passage intérieur du tube et crée un épaulement que touche un des dispositifs de retenue lorsque la ligne électrique est installée dans le puits. Les dentelures et les dispositifs de retenue transfèrent le poids du câble électrique au tube. Le matériau de soudure est mis en place dans le creux de la surface créée par chaque dentelure.

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