CN103903767B - A kind of oil resistant circular submersible pump cable - Google Patents
A kind of oil resistant circular submersible pump cable Download PDFInfo
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- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000004033 plastic Substances 0.000 claims abstract description 17
- 229920003023 plastic Polymers 0.000 claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
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- 238000000576 coating method Methods 0.000 claims 3
- 239000004411 aluminium Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 230000004888 barrier function Effects 0.000 claims 1
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- 239000000843 powder Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000003129 oil well Substances 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000004709 Chlorinated polyethylene Substances 0.000 description 5
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- 229920000049 Carbon (fiber) Polymers 0.000 description 3
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- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 2
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
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- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
本发明公开了一种抗油圆形潜油泵电缆，由三根导线、三个可弯曲填充管和环形支撑芯构成的缆芯；每根导线包括位于中部的导体以及依次包覆在导体外部的半导电屏蔽层、绝缘层、和单面铝塑复合带，单面铝塑复合带的塑料层朝内金属层朝外，环形支撑芯采用高分子材料制成且外周封闭，其中纵向布置多根细钢丝；三根导线平行纵置在环形支撑芯内并紧靠环形支撑芯的内周，三个可弯曲填充管分别纵置在相邻两根导线之间并紧靠相邻两根导线以及环形支撑芯的内周；在所述缆芯外部包覆护套层，所述缆芯与护套层之间设有润滑层，护套层外部包覆铠装层。本发明提出的抗油圆形潜油泵电缆，结构紧凑、耐高温、磁场平衡性好、抗油性能优异。
The invention discloses an oil-resistant circular submersible pump cable. The cable core is composed of three wires, three bendable filling pipes and an annular support core; Conductive shielding layer, insulating layer, and single-sided aluminum-plastic composite tape. The plastic layer of the single-sided aluminum-plastic composite tape faces inward and the metal layer faces outward. The annular support core is made of polymer material and its outer periphery is closed. Steel wire; three wires are placed vertically in the ring support core in parallel and close to the inner circumference of the ring support core, and three flexible filling tubes are respectively placed vertically between two adjacent wires and close to the adjacent two wires and the ring support The inner periphery of the core; a sheath layer is coated on the outside of the cable core, a lubricating layer is provided between the cable core and the sheath layer, and an armor layer is coated on the outside of the sheath layer. The oil-resistant round submersible pump cable proposed by the invention has the advantages of compact structure, high temperature resistance, good magnetic field balance and excellent oil resistance.
Description
技术领域technical field
本发明涉及电缆领域，尤其涉及一种抗油圆形潜油泵电缆。The invention relates to the field of cables, in particular to an oil-resistant circular submersible pump cable.
背景技术Background technique
潜油泵电缆作为潜油电泵机组输送电能的通路部分，长期工作在高温、高压和具有腐蚀性气体的环境中。为使电泵机组长期正常运行，要求阈值相配套的前有电缆具有较高的电气性能：耐高温、高压和耐腐蚀。因此前有电缆与普通动力电缆相比，除了具有相同的绝缘性之外，还具有适应油井井下运行的特殊性，主要表现在结构和绝缘材料与通用的动力电缆不同。The submersible pump cable is used as the passage part of the electric submersible pump unit to transmit electric energy, and it has been working in the environment of high temperature, high pressure and corrosive gas for a long time. In order to make the electric pump unit run normally for a long time, the front cable matching the threshold is required to have high electrical performance: high temperature resistance, high pressure resistance and corrosion resistance. Therefore, compared with ordinary power cables, in addition to having the same insulation, the former cables also have the particularity of adapting to the downhole operation of oil wells, mainly in that the structure and insulating materials are different from general power cables.
潜油泵电力电缆按形状可分为圆形和扁形两种。受油井套管狭小空间的限制，通常潜油泵电力电缆以扁形为主。由于扁形电缆是非对称结构，当电力传输时，因磁场的不平衡而产生的电磁感应会引起磁滞损耗，使电缆发热。因此,当油井套管尺寸允许的情况下宜采用圆形电缆。According to the shape, the submersible pump power cable can be divided into two types: round and flat. Limited by the narrow space of the oil well casing, the power cable of the submersible pump is usually flat. Since the flat cable has an asymmetric structure, when power is transmitted, the electromagnetic induction caused by the imbalance of the magnetic field will cause hysteresis loss and heat the cable. Therefore, round cables should be used when the size of the oil well casing permits.
油井环境尤其对电缆的抗油性要求较高，一般的圆形潜油泵电缆结构稳定较差，电力传输时，因磁场的不平衡而产生的电磁感应会引起磁滞损耗，使电缆发热，使用寿命短。同时，电缆在油井井下运行时，油气易于侵入缆芯内部，对电缆寿命造成影响。如何制造一种结构稳定、抗油性优异，且耐高温的潜油泵电缆，已成为本领域技术人员亟待解决的技术问题。The oil well environment especially has high requirements on the oil resistance of the cable. The structure of the general circular submersible pump cable is not stable. During power transmission, the electromagnetic induction caused by the imbalance of the magnetic field will cause hysteresis loss, which will cause the cable to heat up and prolong its service life. short. At the same time, when the cable is running underground in the oil well, oil and gas are easy to invade the interior of the cable core, which affects the life of the cable. How to manufacture a submersible pump cable with stable structure, excellent oil resistance and high temperature resistance has become a technical problem to be solved urgently by those skilled in the art.
发明内容Contents of the invention
为了解决背景技术中存在的技术问题，本发明提出了一种抗油圆形潜油泵电缆，其结构紧凑、耐高温、抗油性能优异，能够长期在油井环境下安全使用。In order to solve the technical problems in the background technology, the present invention proposes an oil-resistant circular submersible pump cable, which has a compact structure, high temperature resistance, and excellent oil resistance performance, and can be used safely in an oil well environment for a long time.
本发明提出的一种抗油圆形潜油泵电缆，由三根导线、三个可弯曲填充管和环形支撑芯构成的缆芯；每根导线包括位于中部的导体以及依次包覆在导体外部的半导电屏蔽层、绝缘层、和单面铝塑复合带，单面铝塑复合带的塑料层朝内金属层朝外，环形支撑芯采用高分子材料制成且外周封闭，且内部纵向布置多根细钢丝；三根导线平行纵置在环形支撑芯内并紧靠环形支撑芯的内周，三个可弯曲填充管分别纵置在相邻两根导线之间并紧靠相邻两根导线以及环形支撑芯的内周；在所述缆芯外部包覆护套层，所述缆芯与护套层之间设有润滑层，护套层外部包覆铠装层。An oil-resistant circular submersible pump cable proposed by the present invention is composed of three wires, three flexible filling tubes and a cable core composed of an annular support core; Conductive shielding layer, insulating layer, and single-sided aluminum-plastic composite tape, the plastic layer of the single-sided aluminum-plastic composite tape faces inward and the metal layer faces outward, the annular support core is made of polymer material and the outer periphery is closed, and there are multiple vertically arranged inside Thin steel wire; three wires are placed vertically in the annular support core in parallel and close to the inner circumference of the ring support core, and three flexible filling tubes are respectively placed vertically between the adjacent two wires and close to the adjacent two wires and the ring The inner circumference of the supporting core; a sheath layer is coated on the outside of the cable core, a lubricating layer is provided between the cable core and the sheath layer, and an armor layer is coated on the outside of the sheath layer.
优选地，可弯曲填充管采用弹性材料制成。Preferably, the flexible filling tube is made of elastic material.
优选地，环形支撑芯采用氯化聚乙烯复合材料制成。Preferably, the annular support core is made of chlorinated polyethylene composite material.
优选地，填充管内部充入冷却剂或防腐剂。Preferably, the inside of the filling tube is filled with a coolant or an anti-corrosion agent.
优选地，填充管内部设有信号线。Preferably, signal lines are provided inside the filling tube.
优选地，润滑层采用薄铝粉层制成。Preferably, the lubricating layer is made of a thin layer of aluminum powder.
优选地，铠装层为316L型不锈钢带联锁铠装层。Preferably, the armor is Type 316L stainless steel with interlocking armor.
本发明中，在电缆内部设置采用热塑性弹性体材料制成的环形支撑芯，环形支撑芯外周封闭且其中纵向布置多根细钢丝，三根导线平行纵置在环形支撑芯内，并且三个可弯曲填充管分别纵置在相邻两根导线之间。在上述结构布置方式中，一方面，环形支撑芯和可弯曲填充管的设置使导线固定，缆芯内部结构稳定，另一方面，环形支撑芯外周封闭，防止外部油气侵入缆芯内部，保证了电缆的耐油防水性能，延长了电缆的使用寿命，再一方面，环形支撑芯和填充管均采用弹性材料制成，并且环形支撑芯内部纵向布置多根细钢丝，不影响电缆的柔韧性的同时，增强了电缆的机械性能。In the present invention, an annular support core made of thermoplastic elastomer material is arranged inside the cable. The outer periphery of the annular support core is closed and a plurality of fine steel wires are longitudinally arranged in it. The filling pipes are arranged vertically between two adjacent wires respectively. In the above structural arrangement, on the one hand, the arrangement of the annular support core and the flexible filling tube fixes the wires and stabilizes the internal structure of the cable core; The oil-resistant and waterproof performance of the cable prolongs the service life of the cable. On the other hand, the annular support core and the filling tube are made of elastic materials, and a number of thin steel wires are longitudinally arranged inside the annular support core, which does not affect the flexibility of the cable. , enhance the mechanical properties of the cable.
附图说明Description of drawings
图1为本发明提出一种抗油圆形潜油泵电缆的结构示意图。Fig. 1 is a structural schematic diagram of an oil-resistant circular submersible pump cable proposed by the present invention.
具体实施方式detailed description
如图1所示，图1为本发明提出的一种抗油圆形潜油泵电缆的结构示意图。As shown in FIG. 1 , FIG. 1 is a structural schematic diagram of an oil-resistant circular submersible pump cable proposed by the present invention.
参照图1，本发明提出的一种抗油圆形潜油泵电缆，包括由三根导线1、三个可弯曲填充管2和环形支撑芯3构成的缆芯；Referring to Fig. 1, a kind of oil-resistant circular submersible pump cable proposed by the present invention includes a cable core composed of three wires 1, three flexible filling pipes 2 and an annular support core 3;
导线1包括位于中部的导体11，导体11由多根镀锡铜丝绞合而成，导体11外部包覆半导电屏蔽层12，半导体屏蔽层12外部包覆绝缘层13，绝缘层13外部包覆单面铝塑复合带14，单面铝塑复合带14的塑料层朝内铝金属层朝外；弹性填充管2采用弹性材料制成，其直径小于导线1的直径；The wire 1 includes a conductor 11 located in the middle, the conductor 11 is formed by twisting a plurality of tinned copper wires, the conductor 11 is covered with a semi-conductive shielding layer 12 outside, the semiconductor shielding layer 12 is covered with an insulating layer 13 outside, and the insulating layer 13 is covered outside Covering single-sided aluminum-plastic composite tape 14, the plastic layer of the single-sided aluminum-plastic composite tape 14 faces inward and the aluminum metal layer faces outward; the elastic filling tube 2 is made of elastic material, and its diameter is smaller than that of the wire 1;
环形支撑芯3采用热塑性弹性体材料制成且外周封闭，其中纵向布置多根细钢丝30。The annular support core 3 is made of thermoplastic elastomer material and its outer periphery is closed, in which a plurality of thin steel wires 30 are arranged longitudinally.
在导线和信号线的布置过程中，三根导线1平行纵置在环形支撑芯3内并紧靠环形支撑芯3的内周，三个弹性填充管2分别纵置在相邻两根导线1之间并紧靠相邻两根导线以及环形支撑芯3的内周；缆芯结构紧凑，屏蔽性能好。During the arrangement of the wires and signal wires, the three wires 1 are placed vertically in the annular support core 3 in parallel and close to the inner circumference of the ring support core 3, and the three elastic filling tubes 2 are respectively vertically placed between two adjacent wires 1 between two adjacent conductors and the inner circumference of the annular support core 3; the cable core has a compact structure and good shielding performance.
在缆芯外部包覆护套层5，缆芯与护套层5之间设有薄铝粉层4，护套层5外部包覆铠装层6，铠装层6为316L型不锈钢带联锁铠装层。A sheath layer 5 is coated on the outside of the cable core, a thin aluminum powder layer 4 is provided between the cable core and the sheath layer 5, and an armor layer 6 is coated on the outside of the sheath layer 5, and the armor layer 6 is a 316L stainless steel belt connection Lock armor layer.
在本实施例中，在电缆内部设置采用热塑性弹性体材料制成的环形支撑芯3，环形支撑芯3外周封闭且内部纵向布置多根细钢丝30，三根导线1平行纵置在环形支撑芯3内，并且三个弹性填充管2分别纵置在相邻两根导线1之间。在上述结构布置方式中，一方面，环形支撑芯3和弹性填充管2的设置使导线1固定，缆芯内部结构稳定，另一方面，环形支撑芯3外周封闭，防止外部油气侵入缆芯内部，保证了电缆的耐油防水性能，延长了电缆的使用寿命，再一方面，环形支撑芯3和弹性填充管2均采用弹性材料制成，并且环形支撑芯3内部纵向布置多根细钢丝30，不影响电缆的柔韧性的同时，增强了电缆的机械性能。In this embodiment, an annular support core 3 made of thermoplastic elastomer material is arranged inside the cable. The outer periphery of the annular support core 3 is closed and a plurality of thin steel wires 30 are longitudinally arranged inside. Three conductors 1 are placed in parallel and longitudinally on the annular support core 3 Inside, and three elastic filling tubes 2 are placed longitudinally between two adjacent wires 1 respectively. In the above structural arrangement, on the one hand, the arrangement of the annular support core 3 and the elastic filling tube 2 fixes the wire 1 and stabilizes the inner structure of the cable core; , to ensure the oil-proof and waterproof performance of the cable, and prolong the service life of the cable. On the other hand, the annular support core 3 and the elastic filling tube 2 are made of elastic materials, and a plurality of thin steel wires 30 are longitudinally arranged inside the annular support core 3, While not affecting the flexibility of the cable, the mechanical properties of the cable are enhanced.
在具体结构设计中，三根导线1平行纵置在环形支撑芯3内并紧靠环形支撑芯3的内周，三个弹性填充管2分别纵置在相邻两根导线1之间并紧靠相邻两根导线以及环形支撑芯3的内周，环形支撑芯3和三个弹性填充管2将三根导线1固定在缆芯中，提高电缆内空间的利用效率，使得缆芯结构紧凑而稳定；在电缆受到外力时，环形支撑芯3和弹性填充管2起到保护导线的作用；导线在缆芯内呈品字形布置，使缆芯内产生的电磁场均匀分布，相互干扰小，电磁兼容性好。In the specific structural design, three wires 1 are vertically placed in the annular support core 3 in parallel and close to the inner circumference of the annular support core 3, and three elastic filling tubes 2 are respectively vertically placed between two adjacent wires 1 and close to the inner circumference of the annular support core 3. Two adjacent conductors and the inner circumference of the annular support core 3, the annular support core 3 and three elastic filling tubes 2 fix the three conductors 1 in the cable core, improve the utilization efficiency of the cable inner space, and make the cable core structure compact and stable ; When the cable is subjected to external force, the annular support core 3 and the elastic filling tube 2 play the role of protecting the wire; the wire is arranged in a zigzag shape in the cable core, so that the electromagnetic field generated in the cable core is evenly distributed, the mutual interference is small, and the electromagnetic compatibility it is good.
在导线1的导体11和绝缘层13之间设置半导电屏蔽层12，目的是防止导体11和绝缘层13之间的间隙，保证导体11的金属等电位并且与绝缘层13的绝缘材料良好接触，从而避免导体11与绝缘层13表面产生局部放电，并且半导体屏蔽层12均匀电场分布以及抑制导体11的金属与绝缘层13的绝缘材料表面电晕的产生，保证了电缆高载流的稳定。A semi-conductive shielding layer 12 is provided between the conductor 11 of the wire 1 and the insulating layer 13, the purpose is to prevent the gap between the conductor 11 and the insulating layer 13, to ensure that the metal of the conductor 11 is equipotential and in good contact with the insulating material of the insulating layer 13 , so as to avoid partial discharge on the surface of the conductor 11 and the insulating layer 13, and the uniform electric field distribution of the semiconductor shielding layer 12 and the suppression of corona on the surface of the metal of the conductor 11 and the insulating material of the insulating layer 13 ensure the stability of the high-current carrying cable.
在每根导线1的绝缘层13外部包覆单面铝塑复合带14，并且单面铝塑复合带14的铝金属层朝外塑料层朝内，在电缆工作时，其防止外部油气侵入导线内部。同时，当在弹性填充管2内充入冷却液时，冷却液从内部冷却缆芯，此时，单面铝塑复合带14的铝金属层在缆芯内形成高效导热通路，使缆芯内部环境温度均衡，从而降低导线和信号线的工作环境温度的效果；可替换地，当在弹性填充管2内设置信号线时，实现电缆的复合传输，此时，单面铝塑复合带14的铝金属层为每个导线和信号线形成单独屏蔽，起到屏蔽导线和信号线之间电磁波干扰的作用，实现对电缆的电磁波屏蔽性能。The insulating layer 13 of each wire 1 is covered with a single-sided aluminum-plastic composite tape 14, and the aluminum metal layer of the single-sided aluminum-plastic composite tape 14 faces outward and the plastic layer faces inward, which prevents external oil and gas from invading the wire when the cable is working internal. At the same time, when the elastic filling tube 2 is filled with cooling liquid, the cooling liquid cools the cable core from the inside. At this time, the aluminum metal layer of the single-sided aluminum-plastic composite tape 14 forms an efficient heat conduction path in the cable core, making the inside of the cable core The ambient temperature is balanced, thereby reducing the effect of the working environment temperature of the conductor and the signal line; alternatively, when the signal line is set in the elastic filling tube 2, the composite transmission of the cable is realized. At this time, the single-sided aluminum-plastic composite tape 14 The aluminum metal layer forms a separate shield for each wire and signal line, which plays the role of shielding electromagnetic wave interference between the wires and signal lines, and realizes the electromagnetic wave shielding performance of the cable.
缆芯和护套层5之间设有薄铝粉层4，使得缆芯与外部护套层5之间十分润滑，当外部铠装层6和护套层5受到外部扭力时，保护缆芯，同时当外部铠装层6和护套层5受到破坏时，便于其从缆芯剥离。There is a thin aluminum powder layer 4 between the cable core and the sheath layer 5, so that the cable core and the outer sheath layer 5 are very lubricated, and when the outer armor layer 6 and the sheath layer 5 are subjected to external torsion, the cable core is protected. , At the same time, when the outer armor layer 6 and the sheath layer 5 are damaged, it is convenient for them to be stripped from the cable core.
铠装层6采用316L型不锈钢带连锁铠装工艺，起着纵向受力作用，同时对护套层5起着关键的保护作用，提高了电缆使用中的防锈、抗拉、弯曲性能；并且316L型不锈钢带连锁铠装层6起到电缆总屏蔽层的作用，为缆芯屏蔽外部电磁波的干扰。The armor layer 6 adopts the 316L stainless steel belt interlocking armor process, which acts as a longitudinal force, and at the same time plays a key role in protecting the sheath layer 5, improving the anti-rust, tensile and bending properties of the cable during use; and The 316L stainless steel belt interlocking armor layer 6 plays the role of the overall shielding layer of the cable, shielding the cable core from the interference of external electromagnetic waves.
优选地，环形支撑芯3采用的氯化聚乙烯复合材料按质量份数包括下列组分：40～50份氯化聚乙烯、15～30份滑石粉、20～30份轻质碳酸钙、10～20份碳纤维、10～20份导电炭黑、5～8份三烯丙基异氰脲酸酯、5～8份过氧化二异丙苯、2～4份PE蜡、1～3份抗氧剂1010；具体地，其组分和含量如下：50份氯化聚乙烯、15份滑石粉、25份轻质碳酸钙、17份碳纤维、17份导电炭黑、6份三烯丙基异氰脲酸酯、7份过氧化二异丙苯、3份PE蜡、2份抗氧剂1010。Preferably, the chlorinated polyethylene composite material used in the annular support core 3 includes the following components in parts by mass: 40-50 parts of chlorinated polyethylene, 15-30 parts of talcum powder, 20-30 parts of light calcium carbonate, 10 ~20 parts of carbon fiber, 10~20 parts of conductive carbon black, 5~8 parts of triallyl isocyanurate, 5~8 parts of dicumyl peroxide, 2~4 parts of PE wax, 1~3 parts of anti Oxygen agent 1010; specifically, its components and contents are as follows: 50 parts of chlorinated polyethylene, 15 parts of talcum powder, 25 parts of light calcium carbonate, 17 parts of carbon fiber, 17 parts of conductive carbon black, 6 parts of triallyl iso Cyanurate, 7 parts of dicumyl peroxide, 3 parts of PE wax, 2 parts of antioxidant 1010.
环形支撑芯3作为内部导线1支撑保护体，通过采用上述原料组分的氯化聚乙烯复合材料制成，可以具有耐油防水、高强度、抗老化、绝缘的性能，可以延长电缆在油井环境下的使用寿命。其中，轻质碳酸钙和碳纤维的添加增强复合材料的硬度和机械性能；导电炭黑的加入，可提高复合材料的抗静电性，改进电缆在油井环境中工作的安全性。The annular support core 3 is used as the support and protection body of the inner wire 1. It is made of the chlorinated polyethylene composite material of the above-mentioned raw material components, which can have the properties of oil resistance, waterproof, high strength, anti-aging and insulation, and can extend the performance of the cable in the oil well environment. service life. Among them, the addition of light calcium carbonate and carbon fiber enhances the hardness and mechanical properties of the composite material; the addition of conductive carbon black can improve the antistatic property of the composite material and improve the safety of the cable working in the oil well environment.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.
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