CN206380112U - A kind of high-temperature ignition cable - Google Patents
A kind of high-temperature ignition cable Download PDFInfo
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- CN206380112U CN206380112U CN201621476683.9U CN201621476683U CN206380112U CN 206380112 U CN206380112 U CN 206380112U CN 201621476683 U CN201621476683 U CN 201621476683U CN 206380112 U CN206380112 U CN 206380112U
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- oversheath
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- heating
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Abstract
The utility model is related to field of cable technology, and in particular to a kind of high-temperature ignition cable.Afterbody end-blocking including heating section, located at described heating section one end, the other end located at the heating section are used for the cold end for accessing conventional power cable, it is characterised in that：Also include isometrical oversheath, the heating section and the cold end are located in the isometrical oversheath, the afterbody end-blocking is located at the end of the close heating section of the isometrical oversheath.The cold end conductor of the heating conductor and access conventional power cable is in the same isometrical oversheath, and outward appearance is without obvious contact, in the absence of the mechanical connection of the cold and hot portion of conventional ignition device.There is pressure-resistant, antidetonation, flexible, resistance to bigger mechanical damage, Nai Genggao temperature.Above all the product can realize that the lifting repeatedly of underground work rises the mechanical works such as act and accomplishes that recycling is cost-effective while ensureing to reach electric heating effect, reach maximizing the benefits.
Description
Technical field
The utility model is related to field of cable technology, and in particular to a kind of high-temperature ignition cable.
Background technology
Oil well fireflood（Combustion in situ）It is that a kind of methods such as electricity consumption or chemistry make reservoir temperature reach crude oil burning-point, and to oil
Layer injection air or oxygen makes the oil production method of Crude Oil sustained combustion.High viscosity viscous crude or pitch are exploited in this way
Sand.Can heavy crude is mined, and heavy oil is cracked by combustion parts, lightweight oil is produced, this method
Recovery ratio is very high, up to more than 80%.Can also the fuel gas such as the natural gas come with oil extraction is dense also not up to exploding
Burnt up before degree.
During fireflood operation, igniter carries highly important effect in operation, at home and abroad exists and widely should
Use market.Compared to chemic ignition mode, electric heat ignition belongs to physics ignition range, and the chemical contamination to ground environment is few, controllable
Property it is high, meet our countries for field of petroleum exploitation energy-saving and emission-reduction and the requirement of environmental protection.
Electric heat ignition is broadly divided into centralization igniting and segmentation igniting.So-called centralization igniting mainly with electrothermal tube or
Mineral insulation heating cable is the form that igniter is made in heater element, and the usual 4-10m of localized region carries out concentrating heating to reach
To firing temperature.Segmentation igniting is directly as heating element point 50-80m, in this section with mineral insulation heating cable
Heating is carried out in region and reaches firing temperature.
Traditional electric heat ignition is produced in igniter form, and its heating part and power cable lead portion is relatively only
Vertical, entirety, the service life and machine of the junction of this way are formed by welding or mechanical crimp after the completion of independent manufacture
Tool intensity is relative to poor.
Utility model content
The utility model provides a kind of high-temperature ignition cable to solve above-mentioned technical problem, including section of generating heat, located at described
The afterbody end-blocking of heating section one end, the other end located at the heating section are used for the cold end for accessing conventional power cable, its feature
It is：Also include isometrical oversheath, the heating section and the cold end are located in the isometrical oversheath, the afterbody end-blocking is set
In the end of the close heating section of the isometrical oversheath.The heating conductor is described cold with access conventional power cable
The conductor is held to be in the same isometrical oversheath, outward appearance is without obvious contact, in the absence of the cold and hot portion of conventional ignition device
Mechanically connect.There is pressure-resistant, antidetonation, flexible, resistance to bigger mechanical damage, Nai Genggao temperature.The above all production
Product can realize that the lifting repeatedly of underground work rises the mechanical works such as act and accomplishes that recycling is ensureing to reach the same of electric heating effect
When it is cost-effective, reach maximizing the benefits.
Preferably, the external diameter of the isometrical oversheath is identical with the external diameter of coiled tubing, the length of the firing cable
For 80-150 meters.Firing cable length is more than in the length of traditional point segmentation igniting heating cable, heating region greatly, and efficiency is more
It is high.Ensure that the external diameter of the isometrical oversheath is identical with coiled tubing, it is ensured that dock with power cable and conveniently enter well.
Preferably, the cold end includes the first cold end being arranged on along the length direction of the cable in the oversheath
Conductor and the second cold end conductor；The heating section includes the heating conductor being located in the oversheath, and the heating conductor includes
Along the first docking section and the second docking section of the length direction setting of the cable and located at first docking section and second
Connecting portion between docking section；The first cold end conductor is docked with first docking section, the second cold end conductor and institute
State the docking of the second docking section.
Preferably, position and second docking section that first docking section is docked with the first cold end conductor with
The position of the second cold end conductor docking, it is identical on the length direction along the cable.Processing, which is got up, more to be facilitated.
Preferably, also including the insulation division being filled in the isometrical oversheath.
Preferably, the insulation division is included located at the first insulation between the isometrical oversheath and the heating conductor
Portion, the second insulation division between the isometrical oversheath and the cold end conductor, located at the first cold end conductor and institute
The 3rd insulation division between the second cold end conductor is stated, and is filled in the first docking section of the heating conductor, the second docking section
The 4th insulation division between connecting portion.
Preferably, the insulation division is magnesium oxide insulated portion.With good resistance to elevated temperatures while insulation.
Preferably, first docking section and the first cold end conductor butt welding or cold rolling docking, described
Two docking sections and the second cold end conductor butt welding or cold rolling docking.
Preferably, the heating conductor is nichrome conductor；The first cold end conductor and second cold end are led
Body is copper conductor.
Preferably, the isometrical oversheath is stainless steel.Improve the intensity and decay resistance of cable.
Firing cable of the present utility model is using stainless steel as oversheath, and heating conductor uses nichrome, and insulating barrier is oxygen
Change magnesium.There is high temperature high voltage resistant, thermal efficiency height, high mechanical strength, repeatable igniting.
Brief description of the drawings
The firing cable structural representation of Fig. 1 the utility model embodiments.
The machining sketch chart of the firing cable of Fig. 2 the utility model embodiments.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment one
Such as Fig. 1, a kind of high-temperature ignition cable, entirety includes isometrical oversheath 1, heating section 2, the tail located at heating section one end
Portion's end-blocking 3, the other end located at heating section 2 are used for the cold end 4 for accessing conventional power cable.Wherein, isometrical oversheath 1 is
The isometrical tubular structure of SUS321 stainless steels, its external diameter should be greater than 20mm, and the needs that can be gone into the well according to user are customized to connecting
The consistent external diameter of the coiled tubings of Xu Guan Operation Vans（It is 25.4mm in the present embodiment）.And the external diameter of common heating cable is general not
More than 10mm, therefore the firing cable of the present embodiment, compared to common heating cable, easily facilitate coil tubing unit folder
Hold.
Section 2 of generating heat includes Cr20Ni80The heating core that nichrome heating conductor is made, after heating core doubling, edge
The length direction of firing cable is arranged in isometrical oversheath 1, is formed in isometrical oversheath 1 close to the side of afterbody end-blocking 3
Connecting portion 21 and in isometrical oversheath 1 close to cold end 4 side the first docking section 22 and the second docking section 23.First pair
Length direction of the docking section 23 of socket part 22 and second along the firing cable is almost parallel to be arranged in isometrical oversheath 1, even
Socket part 21 connects the first docking section 22 and the second docking section 23 between the first docking section 22 and the second docking section 23.
Cold end 4 includes the cold end core that the cold end conductor of T2 copper materials is made, and cold end core includes the length along firing cable
Degree direction is arranged substantially in parallel the first cold end core 41 and the second cold end core 42 in isometrical oversheath 1.First cold end is led
The end of body 41 is docked with one end of the first docking section 22 in isometrical oversheath 1 by welding or cold rolling mode, and second
The end of cold end conductor 42 is docked with one end of the second docking section 23 in isometrical oversheath 1 by welding or cold rolling mode,
Position is docked in first cold end conductor 41 and the docking location of the first docking section 22 and the second cold end conductor 41 and the second docking section 23
Put, it is identical on the length direction of firing cable.The other end of the other end of first cold end conductor 41 and the second cold end conductor 42
Extend outside isometrical oversheath, for accessing conventional power cable.
Afterbody end-blocking 3 is less than isometrical oversheath 1 located at the end of the close heating section 2 of isometrical oversheath 1, including external diameter
The installation portion 31 of internal diameter, and external diameter are more than or equal to the sealing 32 of the external diameter of isometrical oversheath 1.Heating conductor and access
The cold end conductor of conventional power cable is in same isometrical oversheath 1, and outward appearance is without obvious contact, in the absence of conventional ignition device
Cold and hot portion mechanical connection.There is pressure-resistant, antidetonation, flexible, resistance to bigger mechanical damage, Nai Genggao temperature.Most
It is important that the product can realize that the lifting repeatedly of underground work rises the mechanical works such as act and accomplishes that recycling is ensureing to reach
It is cost-effective while electric heating effect, reach maximizing the benefits.
The insulating barrier 5 that magnesia powder is made is filled in isometrical oversheath 1.The insulating barrier 5 being filled in isometrical oversheath 1 is wrapped
Include the first insulation division 51 being filled between isometrical oversheath 1 and heating conductor, be filled in isometrical oversheath 1 and cold end conductor it
Between the second insulation division 52, be filled in the 3rd insulation division 53 between the first cold end conductor 41 and the second cold end conductor 42, and
It is filled in the 4th insulation division 54 between the first docking section 22 of heating conductor, the second docking section 23 and connecting portion 21.
The length of firing cable is 80-150 meters.Firing cable length is more than the length of traditional point segmentation igniting heating cable
It is big in degree, heating region, it is more efficient.Ensure that the external diameter of isometrical oversheath is identical with coiled tubing, it is ensured that with power cable
Dock and conveniently enter well.Due to, as insulating barrier, oversheath being used as using corrosion resistant stainless steel using inorganic oxide magnesium powder
Firing cable has the advantages that pressure-resistant, antidetonation, flexible, corrosion-resistant, long lifespan, heat transfer are fast.
The manufacturing process of traditional mineral insulated cable is to assemble outer sheath tube embryo, Magnesium oxide knob insulator, cable core
Overall drawing undergauge afterwards.The factory length of cable depends on the length of outer sheath tube.The pipe embryo of its thicker oversheath of external diameter
Thicker, cable entirety factory length is shorter.And firing cable of the present utility model is in the fabrication process, outer sheath tube is employed
It is not stripped after embryo drawing, the technique that afterbody continuously docks core and outer sheath tube embryo continuous drawing.Complete equipment includes pipe embryo certainly
Equipment and the techniques such as pincers continuous drawing, intermediate frequency continuous annealing, automatic disc loading are embraced in dynamic weldering, cable core cold welding, cable.Compared to tradition
The conventional mineral insulated cable that the technique of assembling-drawing-annealing-drawing of mineral insulated cable-upper disk is made, the utility model
Firing cable structure wait gauge structure to be seamless, and solve traditional handicraft and can not produce major diameter, high length heats cable
Problem.Realize under larger external diameter（Usually 25.4mm, traditional firing cable is usually no more than 10mm）, according to mesh
Mark length and ensure that the diameter of cable jacket is unified.
The processing method of firing cable of the present utility model is as follows：
1. the embryonic tube of the isometrical oversheath is first docked by certain length using automatic welder in advance.
2. core will be segmented（Generate heat core or cold end core）Penetrate in pipe again by Magnesium oxide knob insulator string on segmentation core
With embryonic tube formation assembly.
3. such as Fig. 2, the embryonic tube drawing combined is reduced into external diameter, reserve certain length dock remaining core and repeat with
Upper operation, untill pulling to target length.
4. afterbody core is docked after stripping out, one section of short tube of oversheath continued access（4cm）, fill after magnesia, set using special
Standby compacting, inserts short tube welded seal, it is ensured that mechanical strength and insulating properties by end socket.
Product of the present utility model can fully meet the electric heating use requirement that occasion is heated in field of petroleum exploitation underground, reach
The technical performance of same kind of products at abroad.
Although being described in conjunction with the accompanying embodiment of the present utility model, those of ordinary skill in the art can be in institute
Various deformations or amendments are made in the range of attached claim.
Claims (10)
1. a kind of high-temperature ignition cable, including heating section, the afterbody located at described heating section one end are blocked, located at the heating section
The other end be used to access the cold end of conventional power cable, it is characterised in that：Also include isometrical oversheath, the heating section and institute
Cold end is stated in the isometrical oversheath, the afterbody end-blocking is located at the end of the close heating section of the isometrical oversheath
Portion.
2. a kind of high-temperature ignition cable according to claim 1, it is characterised in that：The external diameter of the isometrical oversheath and company
The external diameter of continuous oil pipe is identical.
3. a kind of high-temperature ignition cable according to claim 2, it is characterised in that：The cold end is included along the cable
Length direction is arranged on the first cold end conductor and the second cold end conductor in the oversheath；The heating section is included located at described
Heating conductor in oversheath, the heating conductor includes the first docking section and second set along the length direction of the cable
Docking section and the connecting portion between first docking section and the second docking section；The first cold end conductor with it is described
First docking section is docked, and the second cold end conductor is docked with second docking section.
4. a kind of high-temperature ignition cable according to claim 3, it is characterised in that：First docking section and described first
The position and the position docked with the second cold end conductor of second docking section of cold end conductor docking, along the cable
It is identical on length direction.
5. a kind of high-temperature ignition cable according to claim 3, it is characterised in that：Also include being filled in the isometrical outer shield
Insulation division in set.
6. a kind of high-temperature ignition cable according to claim 5, it is characterised in that：The insulation division is included located at described etc.
The first insulation division between footpath oversheath and the heating conductor, between the isometrical oversheath and the cold end conductor
Second insulation division, the 3rd insulation division between the first cold end conductor and the second cold end conductor, and be filled in
The 4th insulation division between the first docking section, the second docking section and the connecting portion of the heating conductor.
7. a kind of high-temperature ignition cable according to claim 5, it is characterised in that：The insulation division is magnesium oxide insulated
Portion.
8. a kind of high-temperature ignition cable according to claim 3, it is characterised in that：First docking section and described first
Cold end conductor butt welding or cold rolling docking, second docking section and the second cold end conductor butt welding or cold rolling
Docking.
9. a kind of high-temperature ignition cable according to claim 3, it is characterised in that：The heating conductor is led for nichrome
Body；The first cold end conductor and the second cold end conductor are copper conductor.
10. a kind of high-temperature ignition cable according to claim 1, it is characterised in that：The isometrical oversheath is stainless steel
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476683.9U CN206380112U (en) | 2016-12-30 | 2016-12-30 | A kind of high-temperature ignition cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476683.9U CN206380112U (en) | 2016-12-30 | 2016-12-30 | A kind of high-temperature ignition cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206380112U true CN206380112U (en) | 2017-08-04 |
Family
ID=59407690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621476683.9U Active CN206380112U (en) | 2016-12-30 | 2016-12-30 | A kind of high-temperature ignition cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206380112U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962447A (en) * | 2018-06-27 | 2018-12-07 | 中国石油天然气股份有限公司 | Firing cable |
| CN112588038A (en) * | 2020-11-25 | 2021-04-02 | 沈阳市中色测温仪表材料研究所有限公司 | Prefabricated cold end method |
-
2016
- 2016-12-30 CN CN201621476683.9U patent/CN206380112U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962447A (en) * | 2018-06-27 | 2018-12-07 | 中国石油天然气股份有限公司 | Firing cable |
| CN112588038A (en) * | 2020-11-25 | 2021-04-02 | 沈阳市中色测温仪表材料研究所有限公司 | Prefabricated cold end method |
| CN112588038B (en) * | 2020-11-25 | 2022-05-13 | 沈阳市中色测温仪表材料研究所有限公司 | Prefabricated cold end method |
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