CN201986184U - Mid-frequency oil well heating cable - Google Patents
Mid-frequency oil well heating cable Download PDFInfo
- Publication number
- CN201986184U CN201986184U CN2011201116967U CN201120111696U CN201986184U CN 201986184 U CN201986184 U CN 201986184U CN 2011201116967 U CN2011201116967 U CN 2011201116967U CN 201120111696 U CN201120111696 U CN 201120111696U CN 201986184 U CN201986184 U CN 201986184U
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- CN
- China
- Prior art keywords
- oil well
- cable
- heating cable
- mid
- well heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A mid-frequency oil well heating cable relates to an improved cable structure. The utility model aims to provide a tensile mid-frequency oil well heating cable which has the advantages of single core, light weight and small external diameter. The cable comprises a tensile fiber core, and is structurally characterized in that a copper conductor, a crosslinked polyethylene insulation layer and a sheathing layer are sequentially wrapped outside the tensile fiber core, wherein the copper conductor is made of a multiple stranded annealing round copper single wire.
Description
Technical field
The utility model relates to the improvement of the construction of cable.
Background technology
The combination cable of existing oil well heating cable for adopting three power lines and many group control lines to be twisted together.Utilize power line to transmit electric power thick oil underground well is lighted a fire, heated, and the many groups of configuration control line feedback down-hole firing temperature signal.The major defect that this structure exists is: three power line is excessive with the outside diameter of cable of control line composition, weight is high, and cable reciprocating motion in the oil well more than 1500 meters is easy to cause the cable drawing-down, breaks, and causes cable life to be had a greatly reduced quality; Can not be applied even more extensively in various oil well environment.
Summary of the invention
The utility model is exactly at the problems referred to above, and a kind of single core, in light weight, tension intermediate frequency oil well heating cable that external diameter is little are provided.
For achieving the above object, the utility model adopts following technical scheme: the utility model comprises the traction-resistant fibre core, and its structural feature is: the traction-resistant fibre core wraps up the copper conductor that is twisted again by the annealing single round copper wire, crosslinked polyetylene insulated layer and restrictive coating outward successively.
The beneficial effects of the utility model: (1) life-span is long: the utility model cable is compared with existing cable, weight is 1/4 of existing cable, and external diameter is 1/3 of an existing cable, reciprocating motion in oil well, be difficult for drawing-down, break, so improved the useful life of cable.
(2) reduce cost: the utility model cable is because on existing structure, and only being modified into by three power lines and many group control lines need one, therefore, cables manufacturing cost and use cost is significantly reduced.
(3) easy to install: the operation principle of the utility model cable is after electric power is transported under the oil well and produces middle frequency electromagnetic field between the oil well tube wall, viscous crude is heated, viscosity reduction, only needing to add a medium-frequency generator between cable and oil well wall gets final product, bring convenience so give to install and use, improved operating efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein, 1 is that traction-resistant fibre core, 2 is restrictive coating for copper conductor, 3 is crosslinked polyetylene insulated layer, 4.
Embodiment
The utility model comprises traction-resistant fibre core 1, the traction-resistant fibre core 1 outer copper conductor 2 that is twisted again by the annealing single round copper wire, crosslinked polyetylene insulated layer 3 and the restrictive coating 4 of wrapping up successively.
Wherein, restrictive coating 4 can be made of polyester elastomer.
Be with being appreciated that, more than about specific descriptions of the present utility model, only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection range of the present utility model.
Claims (2)
1. intermediate frequency oil well heating cable comprises traction-resistant fibre core (1), it is characterized in that the outer copper conductor (2) that is twisted again by the annealing single round copper wire, crosslinked polyetylene insulated layer (3) and the restrictive coating (4) of wrapping up successively of traction-resistant fibre core (1).
2. intermediate frequency oil well heating cable according to claim 1 is characterized in that restrictive coating (4) is made of polyester elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201116967U CN201986184U (en) | 2011-04-15 | 2011-04-15 | Mid-frequency oil well heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201116967U CN201986184U (en) | 2011-04-15 | 2011-04-15 | Mid-frequency oil well heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201986184U true CN201986184U (en) | 2011-09-21 |
Family
ID=44613633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201116967U Expired - Fee Related CN201986184U (en) | 2011-04-15 | 2011-04-15 | Mid-frequency oil well heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201986184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851505A (en) * | 2015-04-13 | 2015-08-19 | 浙江大铭新材料股份有限公司 | Apparatus for transmitting electric power to oil production well by using carbon-fiber composite-core aluminum conductor |
-
2011
- 2011-04-15 CN CN2011201116967U patent/CN201986184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851505A (en) * | 2015-04-13 | 2015-08-19 | 浙江大铭新材料股份有限公司 | Apparatus for transmitting electric power to oil production well by using carbon-fiber composite-core aluminum conductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20160415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |