CN218568505U

CN218568505U - Oil-submersible cable

Info

Publication number: CN218568505U
Application number: CN202222141511.8U
Authority: CN
Inventors: 郝玉琢; 尚兴军; 刘玉鹏; 袁文
Original assignee: Shandong Baoshida Cable Technology Co ltd
Current assignee: Shandong Baoshida Cable Technology Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-03-03
Anticipated expiration: 2032-08-15

Abstract

The utility model provides an oil-submersible cable belongs to well cable field, includes the sinle silk layer and sets up the rich packet layer outside the sinle silk layer, the sinle silk layer is used for the heating sinle silk of heating including the electric power sinle silk that is used for power transmission and an at least heating sinle silk that is used for heating for in normal power transmission, can heat to the pit through heating the sinle silk at any time, thereby help improving and separate stifled speed, reduce manpower, material resources and time cost, and avoid environmental pollution.

Description

Oil-submersible cable

Technical Field

The utility model relates to a cable field for the oil well, more specifically relates to a cable dives in oil.

Background

With the development of the petroleum industry in China, the requirements of each mining unit on improving the efficiency and reducing the cost are gradually improved, particularly in the aspect of wax removal and deposition of oil wells.

At present, a method for treating the underground wax deposition generally adopts a steam operation vehicle to inject high-temperature steam into the underground, but the wax deposition part is deep, the blockage removing process by adopting the high-temperature steam is very slow, a large amount of manpower, material resources and time cost are consumed in the blockage removing process, and the steam splashing easily causes environmental pollution.

Disclosure of Invention

An object of the utility model is to solve stifled process to exist among the prior art very slowly, and the stifled process of removing need consume a large amount of manpower, material resources and time cost to and steam splash causes environmental pollution's problem easily, provide an oil-submersible cable, in order to improve and to solve stifled efficiency, shorten and to separate stifled time, practice thrift the cost, and avoid causing environmental pollution.

The utility model provides an oil-submersible cable includes the sinle silk layer and sets up the rich packet layer outside the sinle silk layer, the sinle silk layer includes: a power core for power transmission and at least one heating core for heating.

Furthermore, a steel protective layer is coated outside the wrapping layer.

Further, the thickness of the steel protective layer is more than or equal to 1mm.

Further, the power core includes a power conductor, a first inner insulating layer and a first outer insulating layer; the first inner insulating layer is coated outside the power conductor; the first outer insulating layer is wrapped outside the first inner insulating layer.

Further, the heating wire core comprises a heating conductor, a second inner insulating layer and a second outer insulating layer; the second inner insulating layer is coated outside the heating conductor; the second outer insulating layer is coated outside the second inner insulating layer.

Furthermore, the oil-submersible cable also comprises an insulating filling layer filled between the power wire core and the heating wire core and the winding layer.

Furthermore, the insulating filling layer adopts glass fiber.

Further, the power conductor adopts 16mm ² Solid copper conductor of (2).

Further, the heating conductor is 13mm ² Solid copper conductor of (2).

According to the technical solution provided by the utility model, the utility model has the advantages of it is following:

the utility model discloses a set up the heating sinle silk that is used for electric power transmission and is used for heating for can support to heat to the pit when transmitting electric power, help when handling the oil well wax deposition, improve and remove stifled speed, reduce manpower, material resources and time cost, and help avoiding environmental pollution;

the length of the heating wire core of the utility model can be customized according to the wax precipitation depth adaptability of the oil well, thereby being beneficial to realizing accurate heating;

furthermore, the utility model discloses a steel inoxidizing coating for can the tensile, anticorrosives and prevent colliding with, still help improving the outside radiating degree of consistency of whole cable.

Drawings

Fig. 1 shows a schematic structural diagram of a cross section of the submersible cable according to an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of a cross section of a submersible cable according to another embodiment of the present invention.

Fig. 3 shows a schematic structural diagram of a cross section of the power line core according to an embodiment of the present invention.

Fig. 4 shows a schematic structural view of a cross-section of a heating wire core according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1, the utility model provides an oil-submersible cable, including sandwich layer 1 and the rich cladding 4 of setting outside sandwich layer 1, sandwich layer 1 includes: a power core 2 for power transmission and at least one heating core 3 for heating.

In fig. 1, the submersible cable is provided with three power cores 2 and two heating cores 3. The number of heating cores 3 may be set according to practical circumstances.

The whole submersible cable is laid in an oil well, the length of the heating wire core 3 in the submersible cable can be customized according to the wax precipitation depth adaptability of the oil well, and then accurate heating is facilitated.

The power wire core 2 is used for realizing the electric connection between an external power supply system (such as a power distribution cabinet) and a submersible electric pump in a well; the heating wire core 3 is electrically connected with an external heating system (such as a temperature control operation platform) to realize the heating control of the heating wire core 3.

Before the electric submersible pump is used, the electric submersible pump in the well is electrically connected with an external power supply system through the electric submersible cable, and the electric control connection of the external heating system and the heating wire core 3 of the electric submersible cable is realized. When the underground paraffin removing device is used, the external power supply system supplies power to the underground submersible electric pump through the power wire core 2 of the submersible cable, and when underground paraffin precipitation needs to be treated, the external heating system controls the heating wire core 3 of the submersible cable to work, so that blockage of an oil well is removed.

This application electric power sinle silk 2 and heating sinle silk 3's use for whole cable can be when carrying out power transmission, according to actual need at any time to downhole heating, thereby when needs handle wax precipitation in the pit, help avoiding steam operation car to the use of injecting into the high temperature steam mode in the pit, thereby help improving and remove stifled speed, reduce manpower, material resources and time cost, and help avoiding environmental pollution.

It is thus clear that the utility model provides an oil-submersible cable still has environmental protection and energy saving's function.

As another exemplary embodiment of the present invention, as shown in fig. 2, the wrapping layer 4 is externally coated with a steel protective layer 5. The steel protective layer 5 can play the roles of tensile strength, corrosion resistance and collision resistance on the whole cable, and is also favorable for improving the uniformity of outward heat dissipation. The steel protective layer 5 is made of a steel pipe which is made of a 316 stainless steel belt with the thickness not less than 1mm (millimeter) through coating, welding and polishing by a pipe coiling machine.

The power wire core 2 and the heating wire core 3 are normally twisted. The pitch ratio of the twisting ranges from 28 to 30 times when twisted.

The submersible cable further comprises an insulating filling layer 6 filled between the whole of the power wire core 2 and the heating wire core 3 and the winding layer 4, the insulating filling layer 6 is made of glass fiber, and the insulating filling layer 6 serves as a cushion layer and can effectively buffer the influence of external pressure and isolated environment temperature on the power wire core and the heating wire core.

During specific implementation, the twisted power wire core 2 and the twisted heating wire core 3 can be wound together through the glass ribbon, so that the shape of the power wire core is round and the structure of the power wire core is stable.

As another exemplary embodiment of the present invention, as shown in fig. 3, the power core 2 includes a power conductor 2-1, a first inner insulating layer 2-2 and a first outer insulating layer 2-3, the first inner insulating layer 2-2 is coated outside the power conductor 2-1, and the first outer insulating layer 2-3 is coated outside the first inner insulating layer 2-2. As shown in fig. 4, the heating core 3 includes a heating conductor 3-1, a second inner insulating layer 3-2 and a second outer insulating layer 3-3, the second inner insulating layer 3-2 covers the heating conductor 3-1, and the second outer insulating layer 3-3 covers the second inner insulating layer 3-2.

The power conductor 2-1 and the heating conductor 3-1 are both the 1 st conductor in GB/T3956-2008 cable conductors manufactured by continuous extrusion annealing through a solid copper rod extruder, and the specification of the 1 st conductor is shown in the following table 1.

TABLE 1

The first inner insulating layer 2-2 of the power wire core 2 and the second inner insulating layer 3-2 of the heating wire core 3 both adopt 7.25KV polyimide F46 composite films, specifically, the polyimide F46 composite films are respectively wound and wrapped outside the power conductor 2-1 and the heating conductor 3-1 through a film wrapping machine, the lapping rate is 50%, the thickness of the polyimide F46 composite films is 6 times of that of a single-layer film, and the polyimide F46 composite films are firmly bonded with the power conductor 2-1 and the heating conductor 3-1 through high-temperature sintering at the temperature of more than or equal to 320 ℃.

The first outer insulating layer 2-3 of the power wire core 2 and the second outer insulating layer 3-3 of the heating wire core 3 are both made of polyimide F46 composite films, specifically, fluoroplastic insulation is extruded on the power conductor 2-1 and the heating conductor 3-1 which are coated by the polyimide F46 composite films through a high-temperature extruding machine, and a screw rod of the extruding machine adopts a compression ratio of 1:1.25 to 1:1.35 special screw, which makes fluoroplastic and polyimide film bond firmly through temperature control. The first outer insulating layer 2-3 and the second outer insulating layer 3-3 play a role in preventing gas and water for the whole cable, and meanwhile, the heating time of the heating wire core is short and the thermal efficiency is higher by a closed process.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oil-submersible cable comprising a core layer and Rao Baoceng disposed outside the core layer, wherein the core layer comprises: the power wire core is used for power transmission, and the heating wire core is used for heating;

the power line core comprises a power conductor, a first inner insulating layer and a first outer insulating layer;

the first inner insulating layer is coated outside the power conductor;

the first outer insulating layer is wrapped outside the first inner insulating layer.

2. The submersible cable of claim 1 where the wraparound layer is coated with a steel shield.

3. The submersible cable according to claim 2, characterized in that the thickness of the steel protective layer is not less than 1mm.

4. The submersible cable of claim 1, 2 or 3 wherein the heating core comprises a heating conductor, a second inner insulating layer and a second outer insulating layer;

the second inner insulating layer is coated outside the heating conductor;

the second outer insulating layer is coated outside the second inner insulating layer.

5. The submersible cable according to claim 1, 2 or 3 further comprising an insulating filler layer filled between both the power wire core and the heating wire core and the surrounding layer.

6. The submersible cable of claim 5 where the insulating filler layer is fiberglass.

7. The submersible cable of claim 1 where the power conductor is 16mm ² A solid conductor of (2).

8. The submersible cable of claim 4 where the heating conductor is 13mm ² Solid copper conductor of (2).