CN201017704Y - Special electric cable for heating oil well with steel tube dirt-proof boot - Google Patents
Special electric cable for heating oil well with steel tube dirt-proof boot Download PDFInfo
- Publication number
- CN201017704Y CN201017704Y CNU2007201041926U CN200720104192U CN201017704Y CN 201017704 Y CN201017704 Y CN 201017704Y CN U2007201041926 U CNU2007201041926 U CN U2007201041926U CN 200720104192 U CN200720104192 U CN 200720104192U CN 201017704 Y CN201017704 Y CN 201017704Y
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- CN
- China
- Prior art keywords
- sheath
- oil well
- steel pipe
- cable
- insulating barrier
- 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 - Lifetime
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Abstract
The utility model discloses an oil well heating special cable, which comprises a core wire and an insulating layer clad on the outer side of the core wire. A sheath is clad on the cirumferential of the insulating layer, a mineral substance filler layer is filled between the sheath and the insulating layer.
Description
Technical field
The utility model is about a kind of oil well heating private cable with the steel pipe sheath.
Background technology
Be used in the existing petroleum technology viscous crude, high coagulate the oil exploitation mostly utilize a kind of electric heating apparatus of hollow sucker rod, heating cable in this electric heater unit is the insulating sleeve flexible cable substantially, and this insulating sleeve flexible cable is not enough to some extent aspect scratch resistance mill degree and mechanical strength.In addition, adopt this flexible cable will make it to be connected and to constitute heating circuit, just must increase corresponding structure or technology,, make cable and sucker rod connect and compose the loop as increasing pipe nipple or electric cupler with hollow rod as heating cable.
Summary of the invention
The purpose of this utility model is to provide a kind of oil well heating private cable with steel pipe sheath, and this cable is not have box cupling continuously, has scratch resistance mill, high strength, high temperature resistant, advantage such as mounting process is simple.
The oil well heating private cable of band steel pipe sheath includes heart yearn and is coated on the insulating barrier in the described heart yearn outside in the utility model, is coated with a sheath in the periphery of described insulating barrier, is filled with the mineral filler layer between described sheath and described insulating barrier.
The material of described heart yearn is the oxygen-free copper circular copper wire.
The material of described insulating barrier is a polytetrafluoroethylene.
The material of described mineral filler is magnesium oxide or glass fiber band.
Described sheath is a solid drawn tube.
The oil well heating private cable of band steel pipe sheath in use only needs at cable end piece copper heart yearn and the welding of steel pipe sheath in the utility model, so can make cable self just constitute heating circuit, from overall structure and the construction technology that can simplify heater.
Description of drawings
Fig. 1 is the structural representation of the oil well heating private cable of band steel pipe sheath in the utility model.
Embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the oil well heating private cable of band steel pipe sheath includes heart yearn 1, insulating barrier 2 and sheath 4 in the utility model, is filled with mineral matter layer 3 between insulating barrier 2 and sheath 4.Heart yearn 1 conductor that adopts circular copper wire or have identical functions wherein.Insulating barrier 2 adopts one or both in mineral insulating material, the polytetrafluoroethylene, also can be crosslinked polyethylene, and this insulating barrier 2 closely is coated on the outer surface of heart yearn 1, and surfacing is smooth, and thickness is even, and thickness is not less than 90% of nominal value.Mineral matter layer 3 adopts magnesium oxide or other insulating material, and sheath 4 adopts solid drawn tube, and this steel pipe sheath 4 closely is wrapped on the mineral matter layer 3, and the tensile strength of steel pipe sheath 4 is not less than 335MPa.
The processing technology of the oil well heating private cable of band steel pipe sheath is as follows in the utility model, illustrates below, is not limited in this for concrete size, can require and different the setting according to difference:
At first, can adopt the solid drawn tube of 20mm * 1.65m, also can adopt the steel pipe of different-diameter according to different demands with 4 alignments of steel pipe sheath.
Then with the heart yearn alignment, it is 6.4 or 5.7 millimeters oxygen-free copper bar that heart yearn can adopt diameter, and the diameter of this copper core also can be selected according to the design heating power.
Heart yearn after the alignment more successively with polytetrafluoroethylene twine, wrapped, the sintering of glass fiber tape, and penetrate the steel pipe sheath, dose magnesium oxide or other mineral filler simultaneously between sheath and heart yearn, form one section steel pipe jacketed cable.
Next every section cable is welded into continuous whole piece cable, process is as follows:
At first every section cable is aligned, carry out heart yearn welding (inferior arc-welding or electric resistance welding) then successively, remake insulation processing, last welding steel is managed and protected cover (adopting weldering automatically) back drawing, is gone up dish, forms finished product.
In addition, the oil well heating private cable of band steel pipe sheath is because the difference of the megohmite insulant that adopts in the utility model, its rated voltage is also different, wherein adopt polytetrafluoroethylene as insulating material, its rated voltage can reach 2500V, withstand voltage DC12.5kV5min does not have the flashover of hitting phenomenon, and heatproof reaches 250 ℃.If adopt the mineral material insulation, heatproof can reach 350 ℃.And cable core can be selected different sectional areas according to heating power, and insulating barrier can design different-thickness according to requirement of withstand voltage.
In sum, in the utility model with the Special electric cable for heating oil well of steel tube dirt-proof boot have pollution-free, Environmental protection and energy saving, the advantage such as its heating power is big, safe and reliable.
Claims (5)
1. the oil well with the steel pipe sheath heats private cable, include heart yearn (1) and be coated on the insulating barrier (2) in described heart yearn (1) outside, it is characterized in that: the periphery at described insulating barrier is coated with a sheath, is filled with mineral filler layer (3) between described sheath and described insulating barrier.
2. the oil well heating private cable of band steel pipe sheath according to claim 1, it is characterized in that: the material of described heart yearn (1) is the oxygen-free copper circular copper wire.
3. according to the oil well heating private cable of the described band steel pipe of claim 1 sheath, it is characterized in that: the material of described insulating barrier (2) is a polytetrafluoroethylene.
4. according to the oil well heating private cable of the described band steel pipe of claim 1 sheath, it is characterized in that: the material of described mineral filler (3) is magnesium oxide or glass fiber band.
5. according to the oil well heating private cable of the described band steel pipe of claim 1 sheath, it is characterized in that: described sheath is a solid drawn tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201041926U CN201017704Y (en) | 2007-04-10 | 2007-04-10 | Special electric cable for heating oil well with steel tube dirt-proof boot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201041926U CN201017704Y (en) | 2007-04-10 | 2007-04-10 | Special electric cable for heating oil well with steel tube dirt-proof boot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017704Y true CN201017704Y (en) | 2008-02-06 |
Family
ID=39058202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201041926U Expired - Lifetime CN201017704Y (en) | 2007-04-10 | 2007-04-10 | Special electric cable for heating oil well with steel tube dirt-proof boot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017704Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725803A (en) * | 2009-10-09 | 2012-10-10 | 国际壳牌研究有限公司 | Compacted coupling joint for coupling insulated conductors |
| CN105632614A (en) * | 2016-03-27 | 2016-06-01 | 张庆 | Special steel armored signal wire for oil wells |
| CN107443774A (en) * | 2017-08-09 | 2017-12-08 | 山东大学 | A kind of spontaneous thermal element of flexible continuous carbon fibre and its structure |
| CN107892103A (en) * | 2017-11-09 | 2018-04-10 | 中国成达工程有限公司 | The preheating device of large-scale storage tank bottom plate |
| CN108601121A (en) * | 2018-07-03 | 2018-09-28 | 山东华宁电伴热科技有限公司 | A kind of heating cable for oil well |
| CN114743741A (en) * | 2022-05-20 | 2022-07-12 | 辽宁华孚石油高科技股份有限公司 | Longitudinal weld steel armored cable and forming method thereof |
-
2007
- 2007-04-10 CN CNU2007201041926U patent/CN201017704Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725803A (en) * | 2009-10-09 | 2012-10-10 | 国际壳牌研究有限公司 | Compacted coupling joint for coupling insulated conductors |
| CN102725803B (en) * | 2009-10-09 | 2015-06-17 | 国际壳牌研究有限公司 | Compacted coupling joint for coupling insulated conductors and coupling method |
| CN105632614A (en) * | 2016-03-27 | 2016-06-01 | 张庆 | Special steel armored signal wire for oil wells |
| CN107443774A (en) * | 2017-08-09 | 2017-12-08 | 山东大学 | A kind of spontaneous thermal element of flexible continuous carbon fibre and its structure |
| CN107892103A (en) * | 2017-11-09 | 2018-04-10 | 中国成达工程有限公司 | The preheating device of large-scale storage tank bottom plate |
| CN108601121A (en) * | 2018-07-03 | 2018-09-28 | 山东华宁电伴热科技有限公司 | A kind of heating cable for oil well |
| CN114743741A (en) * | 2022-05-20 | 2022-07-12 | 辽宁华孚石油高科技股份有限公司 | Longitudinal weld steel armored cable and forming method thereof |
| CN114743741B (en) * | 2022-05-20 | 2024-01-16 | 辽宁华孚石油高科技股份有限公司 | Longitudinal weld steel armour cable and forming method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |