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Oil well heating cable heated through flexible skin effect and short circuit

A skin effect, heating cable technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of shortening the service life of the cable, damage to the insulation layer of the heating cable, etc., to increase the service life, facilitate downhole installation, and change the wear resistance. sexual effect

Inactive Publication Date: 2013-07-17
ANHUI RUIKAN SCI CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, oil well heating cables with metal sheath and high-temperature plastic sheath technology are used in China. Since the depth of oil wells is generally between 2000 and 3000 meters, the up and down twitching of the sucker rod can easily cause damage to the insulation layer of the heating cable and shorten the service life of the cable. shorten

Method used

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  • Oil well heating cable heated through flexible skin effect and short circuit

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Embodiment Construction

[0013] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0014] Such as figure 1 The shown flexible skin effect and short-circuit heating oil well heating cable includes a wire body and a cone 6, and the wire body sequentially includes a conductor 1, an insulating layer 2, an insulating layer 2 3, and a copper wire braiding layer 4 from inside to outside. , the armor layer 5, the cone 6 is fixed at one end of the wire body, and connects the conductor 1 and the armor layer 5. Specifically, the conductor 1 is a multi-strand soft core plus steel core conductor, the insulating layer one 2 is polytetrafluoroethylene wrapping insulation, the insulating layer two 3 is glass fiber wrapping insulation, and the ...

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Abstract

The invention discloses an oil well heating cable heated through a flexible skin effect and a short circuit. The cable comprises a cable body and a cone body, wherein the cable body comprises a conductor, a first insulating layer, a second insulating layer, a copper wire braiding layer and an armor layer sequentially from inside to outside, and the cone body is fixedly arranged at one end of the cable body and is connected with the conductor and the armor layer. The cone body is connected with the end portion of the cable body through a welding process and is located at the bottom of an oil well to enable the armor layer to be in short-circuit connection with the conductor, so that heating is achieved, and a pumping unit sucker rod is heated. By the aid of the oil well heating cable heated through the flexible skin effect and the short circuit, the flexibility and the abrasive resistance of an outer protective layer of the oil well heating cable can be improved, underground installation of products is facilitated, and service lives of products are prolonged.

Description

technical field [0001] The invention relates to the technical field of cable processing and manufacturing, in particular to a flexible skin effect and short-circuit heating oil well heating cable. Background technique [0002] The oil well heating cable is a heating cable for the oil rod of the pumping unit in the oil field industry, which can solve the problem of difficult pumping of many heavy oil wells at home and abroad. At present, oil well heating cables with metal sheath and high-temperature plastic sheath technology are used in China. Since the depth of oil wells is generally between 2000 and 3000 meters, the up and down twitching of the sucker rod can easily cause damage to the insulation layer of the heating cable and shorten the service life of the cable. shorten. Contents of the invention [0003] The purpose of the present invention is to provide a flexible skin effect and short-circuit heating oil well heating cable, which can improve the flexibility of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/18
Inventor 万俊生
Owner ANHUI RUIKAN SCI CABLE
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