CN101419853B - Electric cable special for oilfield and manufacturing method thereof - Google Patents
Electric cable special for oilfield and manufacturing method thereof Download PDFInfo
- Publication number
- CN101419853B CN101419853B CN2007101514905A CN200710151490A CN101419853B CN 101419853 B CN101419853 B CN 101419853B CN 2007101514905 A CN2007101514905 A CN 2007101514905A CN 200710151490 A CN200710151490 A CN 200710151490A CN 101419853 B CN101419853 B CN 101419853B
- Authority
- CN
- China
- Prior art keywords
- crosslinked
- silicane
- conductor
- cable
- electric cable
- 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.)
- Active
Links
Images
Landscapes
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses an oil field special cable which comprises a conductor, an insulating layer and an outer protection sleeve; the outside of the conductor is coated by the insulating layer which resists high temperature, coldness, environment stress cracking and weathering aging. The outer protection sleeve is an outer sleeve which resists photooxidation aging, resists cracking and has high mechanical intensity. The manufacture method of the oil field special cable comprises: wire drawing, wire twisting, mixed processing and extruding on insulating materials, cross bonding, cable forming, metal shielding, extruding on the outer production sleeve, inspection on finished products, packaging and warehousing. The insulating layer outside the conductor in the structure of the oil field special cable has the advantages of resisting high temperature, coldness, environment stress cracking and weathering aging as well as resisting photooxidation aging, alkali, oil, flame, thermal aging and cracking; moreover, the oil field special cable has high mechanical intensity and can greatly improve the safety and reliability of the cable and prolong the service life of the cable.
Description
Technical field
The present invention relates to a kind of power cable, be specifically related to a kind of lv power cable of suitable oil field special use.
Background technology
" machine of kowtowing " (oil pumper) generally has cracking phenomena with power cable insulation at present, and this not only influences the cable serviceability, and is directly connected to the safety of personal safety and oil well ".Because the oil field environment is abominable, the weather temperature difference is big, causes the crosslinking polyethylene insulated steel band armored cable machinery decreased performance of using on the oil field, and causes the cable insulation cracking, not only strengthen workload and the maintenance cost safeguarded, and brought hidden danger for the oil well security of operation.Oil pumper (machine of kowtowing) is selected 0.6/1kV VV22 copper core polyvinyl chloride insulation steel-tape armouring pvc sheath power cable for use with power cable the earliest, because the oil field is located in desert or Gobi desert, geographical environment is very abominable, summer, surface temperature was at+50 ℃ of high temperature, it is aging that solar radiation is quickened to insulate strongly, winter is about-30 ℃, and often contact the corrosion of alkali, and the polyvinyl chloride insulation low temperature resistivity can be very poor, at high temperature the plasticizer in the polyvinyl chloride is volatile, make the insulation embrittlement, add oil, the erosion of alkali has caused the cracking phenomena of insulation, directly has influence on the performance of cable, make cable ubiquity insulation cracking phenomena, be replaced by the crosslinking polyethylene insulated steel band armored pvc sheath power cable of 0.6/1kV YJV22 copper core afterwards, situation makes moderate progress, but still exists insulation cracking problem always.An urgent demand of oil unit, research and development stress crack resistant, weather proof cable use as the power transmission of the machine of kowtowing.
Summary of the invention
Technical problem to be solved by this invention is exactly the above shortcoming that exists at the power cable that is used for the oil field, harsher in conjunction with the Xinjiang Oilfield environmental condition, require that cable security is reliable, the life-span long and have electric and mechanical performance requirements such as good high temperature resistant, cold-resistant, UV resistant irradiation, resisting environmental stress and cracking, weather-resistant be good, from the product formula for raw stock, photooxidation resistant wears out having of designing of product structure, production and processing technology technical elements, cracking resistance, electric cable special for oilfield and manufacture method thereof that mechanical strength is high.
The technical scheme that solves the technology of the present invention problem is:
Electric cable special for oilfield of the present invention comprises conductor, insulating barrier, oversheath, and the conductor outsourcing is high temperature resistant, cold-resistant, resisting environmental stress and cracking, weather-resistant insulating barrier, and oversheath is that photooxidation resistant is aging, cracking resistance, overcoat that mechanical strength is high.
Preferably the insulating barrier of this electric cable special for oilfield adopts the crosslinked with silicane compound to make, and the percentage by weight of this crosslinked with silicane compound consists of: crosslinked with silicane (A+B) material 97%-98%; Carbon black 2%-3%; Crosslinked with silicane (A+B) material is that (catalyst masterbatch B material can adopt dibutyl tin dilaurate fat (DBDTL) to grafted polyethylene A material with catalyst masterbatch B material, the weight portion proportioning of the two is: grafted polyethylene A material: catalyst masterbatch B material=(92～97): (3～8), preferred grafted polyethylene A material: catalyst masterbatch B material=95: 5.Grafted polyethylene A material is made by polyvinyl resin, silane, initator, and catalyst masterbatch B material is made by antioxidant, catalyst.
Oversheath adopts the flame-proof polyvinyl chloride material to make.
The outer insulating barrier of conductor has high temperature resistant, cold-resistant, resisting environmental stress and cracking, weather-resistant in the electric cable special for oilfield structure of the present invention, have again that photooxidation resistant is aging, alkali patience, oil resistant, fire-retardant, heat-proof aging, cracking resistance, mechanical strength height, security reliability and the useful life that can improve cable greatly.
The manufacture method of the aging electric cable special for oilfield of photooxidation resistant of the present invention may further comprise the steps:
1. wire drawing: metallic conductor is drawn wire, i.e. lead;
2. twisted wire: the multiple conducting wires that draws wire is twisted into thigh;
3. insulating material hybrid process and extruding: the crosslinked with silicane compound as insulating material of regulation than row mixed, extruded by plastic extruding machine, it is outer as insulating barrier to be molded over stranded twisted wire;
4. crosslinked: the SioplasE method that adopts the exploitation of Britain Dow Corning Corporation, it is crosslinked that the crosslinked with silicane compound is carried out, being the crosslinked with silicane compound squeezes after on the cable conductor with plastic extruding machine, be placed on 70 the degree～90 the degree warm water in crosslinked, pass through the crosslinked sub polyethylene subchain grafting that makes, become network molecule from original linear molecule;
5. stranding:, that nonwoven layer is when the split conductor core stranding, wrapped in multiply stranding insulated wire cores outside with the stranded stranding of split conductor core.
6. armouring: steel band is coated on outside the cable of stranding; Can before armouring, extrude the PVC inner sheath at nonwoven layer external application plastic extruding machine;
7. oversheath is extruded: will be extruded by plastic extruding machine as the flame-proof polyvinyl chloride material of jacket material, and be molded over outside the cable of armouring;
8. product inspection, packing warehouse-in
Preferably, the crosslinked with silicane compound that is used as insulating material in the step 3 is crosslinked with silicane (A+B) material and carbon black, and percentage by weight consists of: crosslinked with silicane (A+B) material 97%-98%, carbon black 2%-3.0%;
Further preferably crosslinked with silicane (A+B) material is grafted polyethylene A material and catalyst masterbatch B material (catalyst masterbatch B material adopts dibutyl tin dilaurate fat (DBDTL)), and the weight portion proportioning of the two is: grafted polyethylene A material 92～97, catalyst masterbatch B material 3～7;
Further preferably grafted polyethylene A is expected that 95 weight portions, catalyst masterbatch B expect that the ratio of 5 weight portions evenly mixes;
Further preferably grafted polyethylene A material is evenly mixed with catalyst masterbatch B material dibutyl tin dilaurate fat (DBDTL) ratio in accordance with regulations, the mixture storage life after mixing with carbon black again is no more than 3 hours, needs the extrusion molding while mixing.
Preferably, in the step 6, before armouring, be coated on nonwoven layer outside the core of stranding, outside nonwoven layer, use plastic extruding machine moulding PVC inner sheath again, outside inner sheath, carry out armouring.
Oil field of the present invention special electric power cable is a kind of low pressure weatherability power cable, the common YJV22 crosslinking polyethylene insulated steel band armored power cable that it replaces the present oil well machine of kowtowing to use, overcome the shortcoming that common power cable is not suitable for extreme natural environment, market prospects have preferably been arranged.Xinjiang is the important place of production of CNPC, Karamay oilfield, tell that to breathe out the oil field mainly be the machine oil pumping of kowtowing, therefore will have very big demand to this photooxidation resistant ageing oil private cable, other similar Xinjiang harsh weather of the whole nation also adopts the area of the machine oil pumping of kowtowing also to be fit to adopt this cable, and the present invention will bring the good social economic benefit.
Description of drawings
Fig. 1 is the aging electric cable special for oilfield structural representation of photooxidation resistant of the present invention
Fig. 2 is the aging electric cable special for oilfield technological process of production figure of photooxidation resistant of the present invention
Embodiment
Below in conjunction with the embodiment accompanying drawing, the invention will be further described.
Fig. 1 is a kind of concrete structure schematic diagram of electric cable special for oilfield of the present invention, comprise conductor, insulating barrier, inner sheath, armour, oversheath, nonwoven layer is arranged in the inner sheath, conductor is to form twisted wire by many plain conductors, outsourcing is high temperature resistant, cold-resistant, resisting environmental stress and cracking, weather-resistant insulating barrier, many twisted wires with outsourcing insulation place in the nonwoven layer, in nonwoven layer, between many twisted wires inserts can be arranged, inserts can adopt the PP inserts, and outer jacket is that photooxidation resistant is aging, cracking resistance, oversheath that mechanical strength is high.Conductor 1 is a copper conductor, the insulating material of insulating barrier 2 is chosen crosslinked with silicane compound insulating material, it is the PP tearing film that inserts 3 adopts the PP inserts, nonwoven layer 4 is that nonwoven fabrics is wrapped, four copper conductor line and inserts that are surrounded by insulating barrier respectively coated to one, and outside the nonwoven layer inner sheath 5, inner sheath 5 is the PVC inner sheath, steel-tape armouring 6 is an oversheath 7 outside the steel-tape armouring 6 outside inner sheath 5, and oversheath 7 adopts the flame-proof polyvinyl chloride material to be flame-proof PVC sheath.
Crosslinked polyethylene insulation material has cross-linking radiation material and crosslinked with silicane material at present.The investment of production equipment of cross-linking radiation material is big, and the production of crosslinked with silicane material can be extruded on the common plastics extruder, need not special equipment.Adopt the crosslinked with silicane material in the present embodiment.
In the production process of cable, the grafting of crosslinked with silicane material and moulding are once to finish in extrusion, and crosslinked is to finish in boiling the line pond, and crosslinked speed can rely on the change temperature and time to regulate and control.
Present domestic most of low-voltage cable all is that it is main adopting crosslinked polyetylene insulated basically, because crosslinked polyethylene (crosslinked polyethylene is that the silane crosslinked insulating material adds compounding ingredient through the formation of crosslinked back) has following excellent properties:
A, crosslinked polyethylene molecular structure symmetry do not contain polar group, are a kind of non-polar materials, and its dielectric constant is little, therefore have remarkable dielectric property.
B, cryogenic property are good, use not embrittlement, non-sclerous under cryogenic conditions for a long time.
C, crosslinked polyethylene are a kind of polymer of the most stable, inertia, have excellent chemical stability, and resistance to water, ageing-resistant performance are good.
D, because the crosslinked polyethylene molecule is a non-level property molecule, its dielectric loss angle is little.
No toxic gas discharges in the extruding and process of e, crosslinked polyethylene material, and proportion is little, is easy to processing.Because polyethylene does not contain the chlorine atom, compare with the polyvinyl chloride material, using the crosslinked polyethylene material also is the trend of modern environmental protection at cable industry.
The temperature resistant grade of f, crosslinked polyethylene is higher, can reach 90 ℃ when cable normally moves.
Because having, the aging electric cable special for oilfield of this photooxidation resistant of the present invention is different from common electric power cable properties, so when extrusion molding, can embody unique processing performance requirement.Realize this processing performance, just must adopt to be different from general power cable expressing technique and processing technology.
Fig. 2 is the aging electric cable special for oilfield technological process of production figure of photooxidation resistant of the present invention, production process according to the following steps:
1. wire drawing: the metallic copper conductor material is drawn wire, i.e. lead;
2. twisted wire: the multiple conducting wires that draws wire is twisted into thigh;
3. insulating material hybrid process and extruding: the crosslinked with silicane compound as insulating material of regulation ratio is mixed, extruded by plastic extruding machine, it is outer as insulating barrier to be molded over stranded twisted wire;
Crosslinked with silicane compound as insulating material is crosslinked with silicane (A+B) material and carbon black, and percentage by weight consists of: crosslinked with silicane (A+B) material 97.5%, carbon black 2.5%; Crosslinked with silicane (A+B) material is grafted polyethylene A material and catalyst masterbatch B material, the weight portion proportioning of the two is: grafted polyethylene A material: catalyst masterbatch B material=95: 5, grafted polyethylene A material is evenly mixed in 95: 5 ratio with catalyst masterbatch B material dibutyl tin dilaurate fat (DBDTL), the mixture storage life after mixing with carbon black again is no more than 3 hours, needs the extrusion molding while mixing.
4. crosslinked: the SioplasE method that adopts the exploitation of Britain Dow Corning Corporation, it is crosslinked that the crosslinked with silicane compound is carried out, being the crosslinked with silicane compound squeezes after on the cable conductor with plastic extruding machine, be placed on 70 the degree～90 the degree warm water in crosslinked, pass through the crosslinked sub polyethylene subchain grafting that makes, become network molecule from original linear molecule;
5. stranding: with the stranded stranding of rope-lay strand
6. armouring: steel band is coated on outside the core of stranding;
Before armouring, available nonwoven layer is coated on outside the core of stranding, uses plastic extruding machine moulding PVC inner sheath outside nonwoven layer again, carries out armouring outside inner sheath;
7. oversheath is extruded: will be extruded by plastic extruding machine as the flame-proof polyvinyl chloride material of sheath material, and be molded over outside the cable of armouring;
8. product inspection, packing warehouse-in
Its production stage notes also the main key technology of the following stated except that pressing the above:
The prescription of insulating material, hybrid process and expressing technique are key technologies of the present invention, according to characteristics of the present invention, and expressing technique performance main points, to aging the extruding of electric cable special for oilfield of this photooxidation resistant is improvement and the innovation that extrusion process has carried out science, starts with from the segmentation warm water cooling of the preheating of core, insulation, mould selection etc. respectively.To solve problems such as stress cracking, insulating surface be rough.
(the weight portion proportioning of insulating material and compounding ingredient is the rational proportion of insulating material (the polyethylene A material and the catalyst masterbatch B material that contain silane are insulating material) and compounding ingredient (carbon black): crosslinked with silicane (A+B) material 97%-98%, carbon black 2%-3%, hybrid process, form one reasonably prescription reach optimum efficiency) and expressing technique be key technology of the present invention, it is that Insulation Material has weather-resistant and environmental stress cracking resistance that the aging electric cable special for oilfield of this photooxidation resistant requires to solve key issue.Insulation with the rational proportion of compounding ingredient, accurately to calculate, add the dispersing uniformity that mixes the back (compound will stir repeatedly, and it is just passable in expecting to see that with the naked eye the carbon black material that makes black is evenly dispersed in crosslinked with silicane (A+B) substantially) all be The key factor very.
Therefore the manufacture method of the aging electric cable special for oilfield of photooxidation resistant of the present invention also comprises following invention main points:
(a) preheating of core:
In above-described step of manufacturing 3, in insulating material hybrid process and expressing technique, before extruder head, added a cover conductor heater, before conductor enters plastic extruding machine, be introduced into and be heated to 80-100 ℃ in the heater, preferred 90 ℃, play the effect of preheating in advance, enter extruder head then, oil field special electric power cable in process of production, the cable conductor preheat temperature is advisable with about 90 ℃, use tensile strength that improves cable insulation and the existence that reduces the crosslinked polyethylene internal stress, prevent the cracking that insulate.
(b) insulation segmentation warm water cooling
In order to solve the key of insulating barrier stress cracking, adopt the cooling of segmentation warm water, after the cable that has an insulating barrier went out plastic extruding machine with 8～10 meters/minute linear velocities, to the cooling of insulation segmentation warm water, first section water temperature was 70～90 ℃, long 13 meters of first section tank; Second section water temperature is 40～60 ℃, and second section tank grown 10 meters; The 3rd section water temperature is 30～20 ℃, and the 3rd section tank grown 7 meters; After the warm water cooling, intramolecular stress is alleviated greatly, and internal stress is relaxed, and can reduce and avoid stress cracking.Warm water cooling and will guarantee that insulation immerses in the water fully reaches even cooling, so just can smooth surface, do not have defective, guarantee the requirement of cable fulfils standard.In order to guarantee the cooling of segmentation warm water, in each section tank, be provided with one and overlap heating water supply installation temperature automatically controlled, automatic loading water, promptly be provided with in each section tank with the thermocouple automatic temp controller with the temperature setting within the specific limits, when surpassing the highest its just outage of temperature that is provided with, temperature just lowers.When surpassing its just energising of minimum set temperature, begin again to heat.The principle of automatic loading water water supply installation and water closet is the same: the floating filler of blocking of water when water is filled it up with, water water after a little while floats the sagging water that begins again to add.
(c) be used for the selection of mould of the extrusion molding of insulating material:
Extruded mould is divided into squash type and crowded tubular type.When adopting tubular molding tool to extrude, its presentation quality is not fine, and some is coarse on the surface, and can produce internal stress in the polyethylene molecule, because the existence of stress, in heat shrinkage test, its thermal contraction value is bigger than normal, causes defective.Its presentation quality of Polyethylene insulated cable that adopts plsitive mold to extrude is good, smooth surface, rounding, and its physical and mechanical properties heat shrinkage test is qualified.Through repetition test, plsitive mold is adopted in final decision.
Temperature when (d) extruding is determined
For the different insulative material, the set point of its extrusion temperature is all different.Through running experience repeatedly, find that temperature is too high, old glue, starved phenomenon appear easily; Temperature is low excessively, and then rough surface through debugging repeatedly, has finally been determined one group of best extrusion temperature such as table 1.
Table 1
| Charging zone ℃ | Fuselage one district ℃ | Fuselage two districts ℃ | Machine neck ℃ | Head ℃ |
| 120～140 | 130～135 | 155～160 | 160～165 | 169～170 |
The characteristic of product:
The present invention is a kind of low pressure weather resistant power cable, it has overcome common power cable and has not been suitable for open-air shortcoming of laying in the open, solved such as the Xinjiang region weather temperature difference bigger, outdoor sunlight middle-ultraviolet lamp irradiation is strong, oil-field oil pumpers (machine of kowtowing) etc. connect with cable in use, stress cracking appears in insulation, situations such as conductor exposes, eliminated potential safety hazard, so just can help oilfield enterprise to reduce the maintenance of man power and material to cable, save a large amount of expenses and time, eliminate ageing of insulation simultaneously, cracking waits safety in production hidden danger, guarantees oil field highly effective and safe production.
The aging oil field of photooxidation resistant of the present invention special electric power cable has characteristics such as the performance of excellent UV resistant, weather proof performance, good resisting environmental stress and cracking, remarkable dielectric property, temperature resistant grade are higher, excellent chemical stability, resistance to water, ageing-resistant performance, resistance to low temperature, be fit in atmosphere, expose for a long time, power transmission as oil pumper (machine of kowtowing) is used, and its surface and every performance remain unchanged substantially.
The aging electric cable special for oilfield of photooxidation resistant of the present invention is once in certain oil field, oil recovery factory well linked network test run more than 2 years, and the cable operation is normal, cable does not generate heat, cable surface does not have variable color, insulating barrier does not have the season cracking phenomenon, and on-the-spot to detect the electric current operation very stable.
Claims (9)
1. electric cable special for oilfield, comprise conductor, insulating barrier, oversheath, the conductor outsourcing is high temperature resistant, cold-resistant, resisting environmental stress and cracking, the weather-resistant insulating barrier, oversheath is that photooxidation resistant is aging, cracking resistance, the overcoat that mechanical strength is high, described insulating barrier adopts the crosslinked with silicane compound to make, this crosslinked with silicane compound is crosslinked with silicane (A+B) material and carbon black, percentage by weight consists of: crosslinked with silicane (A+B) material 97%-98%, carbon black 2%-3%, described crosslinked with silicane (A+B) material is to expect (92～97) by weight by grafted polyethylene A material with catalyst masterbatch B: make (3～8), grafted polyethylene A material is by polyvinyl resin, silane, initator is made, and catalyst masterbatch B expects by antioxidant, catalyst is made.
2. electric cable special for oilfield according to claim 1, it is characterized in that oversheath adopts the flame-proof polyvinyl chloride material to make, conductor is to form twisted wire by many plain conductors, many twisted wires with outsourcing insulation place in the nonwoven layer, between many twisted wires inserts are arranged in nonwoven layer.
3. electric cable special for oilfield according to claim 2 is characterized in that crosslinked with silicane (A+B) material is to be made in 95: 5 by weight by grafted polyethylene A material and catalyst masterbatch B material, and wherein, catalyst masterbatch B material adopts dibutyl tin dilaurate fat.
4. the manufacture method of an electric cable special for oilfield: may further comprise the steps:
(1). wire drawing: metallic conductor is drawn wire, i.e. lead;
(2). twisted wire: the multiple conducting wires that draws wire is twisted into thigh;
(3). insulating material hybrid process and extruding: the crosslinked with silicane compound as insulating material of regulation ratio is mixed, extruded by plastic extruding machine, it is outer as insulating barrier to be molded over stranded twisted wire; Extrude back segmentation warm water cooling, after the cable that has an insulating barrier went out plastic extruding machine with 8～10 meters/minute linear velocities, to the cooling of insulation segmentation warm water, first section water temperature was 70～90 ℃, long 13 meters of first section tank; Second section water temperature is 40～60 ℃, and second section tank grown 10 meters; The 3rd section water temperature is 30～20 ℃, and the 3rd section tank grown 7 meters; After the warm water cooling, intramolecular stress is alleviated greatly, and internal stress is relaxed, and can reduce and avoid stress cracking; Described as comprising crosslinked with silicane (A+B) material and carbon black in the crosslinked with silicane compound of insulating material, percentage by weight consists of: crosslinked with silicane (A+B) material 97%-98%, carbon black 2%-3%, described crosslinked with silicane (A+B) material package is drawn together grafted polyethylene A material and catalyst masterbatch B material, the weight portion proportioning of the two is: grafted polyethylene A material: catalyst masterbatch B material=(92～97): (3～8), grafted polyethylene A material is made by polyvinyl resin, silane, initator, and catalyst masterbatch B material is made by antioxidant, catalyst;
(4). crosslinked: it is crosslinked that the crosslinked with silicane compound is carried out, being the crosslinked with silicane compound squeezes after on the cable conductor with plastic extruding machine, be placed in the warm water of 70 degree～90 degree crosslinkedly, make the grafting of sub polyethylene subchain, become network molecule from original linear molecule through crosslinked;
(5). stranding: with the stranded stranding of split conductor core;
(6). armouring: steel band is coated on outside the cable of stranding;
(7). oversheath is extruded: will be extruded by plastic extruding machine as the flame-proof polyvinyl chloride material of jacket material, be molded over outside the cable of armouring.
5. the manufacture method of electric cable special for oilfield according to claim 4, it is characterized in that in the step (3) the insulating material hybrid process and when extruding, the conductor heater is arranged before extruder head, before conductor enters plastic extruding machine, be introduced into and be heated to 80 ℃-100 ℃ in the heater, play the effect of preheating in advance, use tensile strength that improves cable insulation and the existence that reduces the crosslinked polyethylene internal stress, prevent from the cracking that insulate to enter extruder head then.
6. the manufacture method of electric cable special for oilfield according to claim 5, it is characterized in that being introduced into before conductor enters plastic extruding machine the temperature that heats in the heater is 90 ℃.
7. the manufacture method of electric cable special for oilfield according to claim 4 is characterized in that grafted polyethylene A material and catalyst masterbatch B expect that the weight portion proportioning of the two is: grafted polyethylene A material: catalyst masterbatch B material=95: 5.
8. the manufacture method of electric cable special for oilfield according to claim 4 is characterized in that the extruded mould of extruding usefulness in the step (3) after the insulating material hybrid process adopts plsitive mold.
9. the manufacture method of electric cable special for oilfield according to claim 4, it is characterized in that the extrusion temperature that insulating material is extruded in the step (3) is: 120～140 ℃ of charging zones, 130～135 ℃ in fuselage one district, 155～160 ℃ in fuselage two districts, 160～165 ℃ on machine neck, 169～170 ℃ of heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101514905A CN101419853B (en) | 2007-10-24 | 2007-10-24 | Electric cable special for oilfield and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101514905A CN101419853B (en) | 2007-10-24 | 2007-10-24 | Electric cable special for oilfield and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101419853A CN101419853A (en) | 2009-04-29 |
| CN101419853B true CN101419853B (en) | 2011-08-31 |
Family
ID=40630604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101514905A Active CN101419853B (en) | 2007-10-24 | 2007-10-24 | Electric cable special for oilfield and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101419853B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707085B (en) * | 2009-11-09 | 2011-12-14 | 安徽鑫科新材料股份有限公司 | Method for preparing multicore shielding low-voltage crosslinked cable |
| US20130048338A1 (en) * | 2011-08-29 | 2013-02-28 | Hitachi Cable, Ltd. | Coated wire and method of manufacturing the same |
| CN104200903B (en) * | 2014-08-19 | 2017-04-05 | 安徽蒙特尔电缆集团有限公司 | A kind of tear-resistant stretch-proof highly effective flame-retardant cable |
| CN105448412B (en) * | 2014-09-26 | 2017-05-10 | 深圳市联嘉祥科技股份有限公司 | Flat combination drag chain cable and preparation method thereof |
| CN105976902B (en) * | 2016-04-27 | 2017-07-18 | 上海斯麟特种设备工程有限公司 | A kind of power cable for building and its manufacture method |
| CN106273309A (en) * | 2016-09-16 | 2017-01-04 | 芜湖市旭辉电工新材料有限责任公司 | A kind of fire-retardant self limiting temperature geothermal heating cable working technology |
| CN109065265A (en) * | 2018-08-14 | 2018-12-21 | 重庆瑞普电气实业股份有限公司 | A kind of production method of the motor winding wire of the resistance to electromagnetic radiation of corrosion-and high-temp-resistant |
| CN110690009B (en) * | 2019-10-16 | 2021-03-16 | 安徽虹都电缆集团有限公司 | Production process of weather-resistant insulated power cable |
-
2007
- 2007-10-24 CN CN2007101514905A patent/CN101419853B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101419853A (en) | 2009-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101419853B (en) | Electric cable special for oilfield and manufacturing method thereof | |
| CN100392769C (en) | Longitudinal watertightness cable/wire | |
| CN101494105B (en) | Method for manufacturing special cable of wind power plant | |
| RU2658308C2 (en) | Armored mounting cable, mainly fire and explosion safe, including that for the intrinsically safe circuits | |
| CN102509577A (en) | Silane halogen-free flame retardant cross-linking polyolefine cable and manufacturing method thereof | |
| CN202189578U (en) | Thin wall cable for railroad locomotive | |
| CN101950612A (en) | Cable for solar power system | |
| CN102881362A (en) | Environment-friendly copper-aluminum composite cable and production method thereof | |
| CN207097477U (en) | A kind of new superhigh temperature resistant flexible cable | |
| CN202142327U (en) | Chlorinated polyethylene rubber cable | |
| CN109509578A (en) | A kind of distributed photovoltaic cable and production method | |
| CN204792117U (en) | Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable | |
| CN107731348A (en) | Manufacturing process for dilatation optical fiber composite rope | |
| CN209056300U (en) | A kind of distributed photovoltaic cable | |
| CN208399766U (en) | A kind of Novel anti-mouse flame-proof cable | |
| CN201194178Y (en) | Power cable for nuclear island of third generation nuclear plant | |
| CN201323079Y (en) | Oil and high temperature resistant high-tensile cable for oil well heater | |
| CN203134460U (en) | Optical fiber composite low-voltage cable | |
| CN101335103A (en) | Electric cable with silicon rubber sheath and manufacturing method | |
| CN202632816U (en) | Ceramic fire-resistant environment-friendly type control flexible cable | |
| CN207397743U (en) | Environment-friendly type thermostable PVC cables | |
| CN202523435U (en) | Irradiation crosslinking chlorinated polyethylene (CPE) insulating flexible cable | |
| CN204029439U (en) | Novel radiation cross-linking low smoke halogen-free fire retardant polyolefin insulated fireproof environment-friendly type electric consumption on lighting line | |
| CN208521652U (en) | A kind of water-and fire-proof power cable | |
| CN201754344U (en) | Civil electric wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |