High-performance oil-submerged pump cable

Abstract

The utility model relates to the technical field of cables, in particular to a high-performance oil-submerged pump cable, which comprises three wire cores, each wire core comprises a conductor, an oil-resistant layer, an insulating layer and a sub-shielding layer, the outer side of the conductor is wrapped with the oil-resistant layer, the outer side of the oil-resistant layer is provided with the insulating layer, the outer side of the insulating layer is wrapped with the sub-shielding layer, and the outer side of the sub-shielding layer is provided with the oil-resistant layer. The outer sides of the three wire cores are jointly wrapped with a wrapping tape layer, the space between the wrapping tape layer and the three wire cores is filled with a filling layer, the outer side of the wrapping tape layer is provided with a total shielding layer, the outer side of the total shielding layer is provided with an isolation layer, the outer side of the isolation layer is provided with a braided armor layer, the outer side of the braided armor layer is provided with an outer protection layer, and the outer protection layer is provided with a sheath layer. The outer side of the outer protection layer is provided with a composite braided protection layer. The oil-submerged pump cable has the advantages of high temperature resistance, high oil resistance, strong interference resistance, corrosion resistance, wear resistance, high strength, light weight and the like, and the service life of the oil-submerged pump cable is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-performance submersible pump cable. Background Technology

[0002] The continued exploitation of traditional oil and gas fields worldwide has led to a continuous increase in the number of old and deep wells. The development of unconventional oil and gas and offshore oil and gas has deepened, and the more complex exploitation environment has placed higher demands on the performance of submersible pump cables. Submersible pump cables are required to have characteristics such as higher temperature resistance, oil and gas aging resistance, corrosion resistance, wear resistance, and stronger anti-interference. To this end, we have proposed a high-performance submersible pump cable. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-performance submersible pump cable. This cable significantly improves the high-temperature resistance, oil and gas aging resistance, and anti-interference performance of the submersible pump cable. Furthermore, it possesses excellent corrosion resistance, aging resistance, abrasion resistance, and tensile strength, making it suitable for complex oil and gas extraction operations. This invention solves the current problems of insufficient high-temperature resistance, oil and gas aging resistance, and anti-interference performance of submersible pump cables, thereby increasing the cable's ability and lifespan in complex environments.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a high-performance submersible pump cable, comprising three cores, each core including a conductor, an oil-resistant layer, an insulation layer, and a sub-shielding layer. The conductor is wrapped with an oil-resistant layer, the oil-resistant layer is surrounded by an insulation layer, and the insulation layer is surrounded by a sub-shielding layer. The three cores are collectively wrapped with a wrapping layer, and a filler layer is placed between the wrapping layer and the three cores. A total shielding layer is placed outside the wrapping layer, an isolation layer is installed outside the total shielding layer, a braided armor layer is placed outside the isolation layer, an outer sheath is placed outside the braided armor layer, and a composite braided protective layer is installed outside the outer sheath.

[0006] Preferably, the oil-resistant layer is made of oil- and water-resistant polyimide insulating varnish.

[0007] Preferably, the insulating layer is composed of a polyimide film and an extruded PFA material.

[0008] Preferably, the sub-shielding layer is woven with tin-plated copper wire with a weaving density of not less than 85%, and the total shielding layer is woven with tin-plated copper wire with a weaving density of not less than 85%.

[0009] Preferably, the filler layer is filled with a high-temperature resistant and oil-resistant material.

[0010] Preferably, the wrapping layer is made of PTFE wrapping.

[0011] Preferably, the insulating layer is made of lead alloy material.

[0012] Preferably, the woven armor layer is made of Kevlar fiber.

[0013] Preferably, the outer protective layer is made of PFA material.

[0014] Preferably, the composite woven protective layer is made of Kevlar fiber weaving and organic oil-resistant silicone resin, with the organic oil-resistant silicone resin coated on the outer side of the Kevlar fiber weaving.

[0015] The present invention proposes a high-performance submersible pump cable, which has the following advantages: it greatly improves the high temperature resistance, oil and gas aging resistance, and anti-interference performance of the submersible pump cable. At the same time, this cable also has excellent corrosion resistance, aging resistance, wear resistance, high tensile strength, high strength, and light weight, making it suitable for complex oil and gas extraction operations. It solves the problems of insufficient high temperature resistance, oil and gas aging resistance, and anti-interference performance of current submersible pump cables, and increases the ability of submersible pump cables to work in complex environments and their service life.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a high-performance submersible pump cable structure proposed in this utility model.

[0019] In the diagram: 1. Conductor; 2. Oil-resistant layer; 3. Insulation layer; 4. Sub-shielding layer; 5. Filling layer; 6. Wrapping tape layer; 7. Overall shielding layer; 8. Isolation layer; 9. Braided armor layer; 10. Outer sheath; 11. Composite braided protective layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Reference Figure 1 A high-performance submersible pump cable includes three cores, each core comprising a conductor 1, an oil-resistant layer 2, an insulation layer 3, and a sub-shielding layer 4. The conductor 1 is wrapped with the oil-resistant layer 2, the oil-resistant layer 2 is wrapped with the insulation layer 3, the insulation layer 3 is wrapped with the sub-shielding layer 4, the three cores are wrapped together with a wrapping layer 6, a filler layer 5 is filled between the wrapping layer 6 and the three cores, a total shielding layer 7 is provided outside the wrapping layer 6, an isolation layer 8 is installed outside the total shielding layer 7, a braided armor layer 9 is provided outside the isolation layer 8, an outer sheath 10 is provided outside the braided armor layer 9, and a composite braided protective layer 11 is installed outside the outer sheath 10.

[0022] Conductor 1 is made of oxygen-free round copper wire. Oxygen-free round copper wire ensures excellent conductivity while also having good oxidation resistance and high stability and corrosion resistance.

[0023] The oil-resistant layer 2 uses oil- and water-resistant polyimide insulating varnish with a high temperature resistance rating of 240°C. It has extremely high heat resistance and can maintain stable performance in high-temperature environments. It also has excellent oil and water resistance, solvent resistance, and good electrical insulation. At the same time, the varnish film attached to the conductor can improve the conductor's corrosion resistance, giving the cable a longer service life.

[0024] Insulation layer 3 is composed of polyimide film and extruded PFA material. The polyimide film has excellent high-temperature resistance. After double-sided coating with a suitable adhesive and processing, the film and PFA are bonded together to form a continuous and stable insulation layer. At the same time, the insulation layer and the oil-resistant layer can also be tightly bonded together, which greatly increases the cable's sealing and oil resistance. PFA material has excellent oil resistance, high-temperature resistance, abrasion resistance, good insulation, flexibility, and stress cracking resistance. It can resist the erosion of various chemicals over a very wide temperature and pressure range and has excellent chemical stability. As an insulation layer, it can effectively protect the internal conductor.

[0025] The sub-shielding layer 4 is made of tin-plated copper wire braid with a braiding density of not less than 85%, and the total shielding layer 7 is also made of tin-plated copper wire braid with a braiding density of not less than 85%. Compared with ordinary copper wire, tin-plated copper wire has better corrosion resistance and oxidation resistance, and can provide better shielding effect under complex conditions, thus improving the cable's anti-interference ability. The total shielding layer 7 further strengthens the cable's anti-interference ability, making the cable's shielding performance better and enabling the cable to work stably in complex working environments.

[0026] The filler layer 5 is filled with high-temperature and oil-resistant materials to ensure the stability of the cable structure while preventing oil and gas from corroding the cable.

[0027] The 6th layer of the cable wrapping layer uses PTFE wrapping, which ensures the stability of the cable structure. At the same time, PTFE has excellent oil resistance and high temperature resistance, which can effectively prevent oil and gas from entering the inside of the cable and improve the service life of the cable.

[0028] The isolation layer 8 is made of lead alloy material. Lead alloy as an isolation layer has excellent corrosion resistance and good sealing performance. While protecting the inside of the cable, it can effectively prevent oil and gas from entering the inside of the cable and corroding the cable, thereby improving the service life of the cable.

[0029] The braided armor layer 9 uses Kevlar fiber braiding. Kevlar fiber braiding as an armor layer greatly improves the tensile strength of the cable. While ensuring high strength, Kevlar fiber also has good flexibility and impact resistance. Moreover, Kevlar fiber as armor can reduce the weight of the cable, making it easier to install and maintain.

[0030] The outer sheath 10 is made of PFA material. PFA, as an outer sheath, has excellent oil resistance, high temperature resistance, wear resistance and chemical stability. It also has excellent flexibility and crack resistance, which can fully protect the cable and improve its service life.

[0031] The composite braided protective layer 11 uses Kevlar fiber braiding and organic oil-resistant silicone resin. The organic oil-resistant silicone resin is coated on the outside of the Kevlar fiber braiding, which further increases the cable's tensile strength, abrasion resistance, and oil resistance, strengthens the stability of the overall cable structure, and improves the cable's service life.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-performance submersible pump cable, comprising three cores, characterized in that, The wire core includes a conductor (1), an oil-resistant layer (2), an insulation layer (3), and a sub-shielding layer (4). The conductor (1) is wrapped with an oil-resistant layer (2). An insulation layer (3) is provided on the outside of the oil-resistant layer (2). A sub-shielding layer (4) is wrapped on the outside of the insulation layer (3). The three wire cores are wrapped together with a wrapping layer (6). A filler layer (5) is filled between the wrapping layer (6) and the three wire cores. A total shielding layer (7) is provided on the outside of the wrapping layer (6). An isolation layer (8) is installed on the outside of the total shielding layer (7). A braided armor layer (9) is provided on the outside of the isolation layer (8). An outer sheath (10) is provided on the outside of the braided armor layer (9). A composite braided protective layer (11) is installed on the outside of the outer sheath (10).

2. The high-performance submersible pump cable according to claim 1, characterized in that, The oil-resistant layer (2) is made of oil- and water-resistant polyimide insulating varnish.

3. The high-performance submersible pump cable according to claim 1, characterized in that, The insulating layer (3) is composed of a polyimide film and extruded PFA material.

4. The high-performance submersible pump cable according to claim 1, characterized in that, The sub-shielding layer (4) is woven with tin-plated copper wire and the weaving density is not less than 85%. The total shielding layer (7) is woven with tin-plated copper wire and the weaving density is not less than 85%.

5. A high-performance submersible pump cable according to claim 1, characterized in that, The filling layer (5) is filled with a high-temperature resistant and oil-resistant material.

6. The high-performance submersible pump cable according to claim 1, characterized in that, The wrapping layer (6) is made of PTFE wrapping.

7. The high-performance submersible pump cable according to claim 1, characterized in that, The isolation layer (8) is made of lead alloy material.

8. A high-performance submersible pump cable according to claim 1, characterized in that, The woven armor layer (9) is woven with Kevlar fibers.

9. A high-performance submersible pump cable according to claim 1, characterized in that, The outer protective layer (10) is made of PFA material.

10. A high-performance submersible pump cable according to claim 1, characterized in that, The composite woven protective layer (11) is made of Kevlar fiber weaving and organic oil-resistant silicone resin, with the organic oil-resistant silicone resin coated on the outside of the Kevlar fiber weaving.

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