Cold-resistant computer cable for intelligent oil well

Abstract

The utility model belongs to the technical field of cold-resistant cables, and particularly relates to a cold-resistant computer cable for an intelligent oil well, which comprises a plurality of tin-coated copper wires which are twisted, and nickel-chromium alloy wires are embedded in the center of the tin-coated copper wires to form a conductor layer; the cable is sequentially provided with a conductor layer, a shielding layer, a heat storage layer, an insulating layer and a sheath layer from inside to outside. A phase change layer for absorbing heat and releasing heat is arranged in the heat storage layer, and a packaging layer for promoting heat conduction is wrapped on the outer side of the heat storage layer. According to the utility model, through the self-heating conductor, the shielding compression-resistant structure and the heat storage and release structure of the middle layer, the problems of cold resistance, oil stain resistance, interference resistance and mechanical protection of the cable in an oil well environment are comprehensively solved, and internal heat energy is fully utilized to maintain the operation temperature of the cable.

Description

A cold-resistant computer cable for intelligent oil wells Technical Field

[0001] This utility model belongs to the field of cold-resistant cable technology, and in particular relates to a cold-resistant computer cable for intelligent oil wells. Background Technology

[0002] Intelligent oil wells are advanced oil production technologies that integrate sensors, automated equipment, and data systems to achieve real-time monitoring and remote control of downhole production. Their core lies in upgrading traditional oil wells into digital systems with dynamic sensing, intelligent analysis, and automatic adjustment capabilities. Computer cables serve as the physical medium connecting downhole sensors and surface systems, undertaking critical data transmission functions.

[0003] Currently, when this computer cable is used in an oil well environment, the low external temperature can cause the cable to harden, which also affects its normal transmission performance.

[0004] To address the aforementioned issues, this application proposes a cold-resistant computer cable for intelligent oil wells. Summary of the Invention

[0005] The purpose of this invention is to provide a cold-resistant computer cable for intelligent oil wells, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a cold-resistant computer cable for intelligent oil wells, comprising tin-plated copper wire.

[0008] The tin-plated copper wire is multi-stranded and has a nickel-chromium alloy wire embedded in the center to form a conductor layer;

[0009] The cable consists of a conductor layer, a shielding layer, a heat storage layer, an insulation layer, and a sheath layer arranged from the inside out.

[0010] The heat storage layer contains a phase change layer that absorbs and releases heat, and is wrapped with an encapsulation layer that promotes heat conduction on its outside.

[0011] Furthermore, the phase change layer is filled with a modified paraffin or fatty acid composite phase change material, and the encapsulation layer is made of high thermal conductivity aluminum foil.

[0012] Furthermore, the outer side of the encapsulation layer is wrapped with a heat insulation layer, and the outer side of the heat insulation layer is wrapped with an outer sheath layer.

[0013] Furthermore, the shielding layer is divided into two layers, an inner layer and an outer layer.

[0014] Furthermore, the inner shielding part has a double-layer structure of tin-plated copper wire braided layer + aluminum-plastic composite strip.

[0015] Furthermore, the outer shielding part is made of aramid fiber to resist mechanical compression.

[0016] This utility model has the following beneficial effects:

[0017] This invention places a nickel-chromium alloy wire inside a tin-plated copper wire. Utilizing the properties of nickel-chromium alloy conductors, when current passes through the nickel-chromium alloy wire, the resistance generates heat, which is then efficiently heated through thermal radiation / conduction. This eliminates the need for external temperature control equipment and enables self-starting heating in harsh environments such as oil wells, thereby achieving a cold-resistant protective effect.

[0018] This invention arranges a heat storage layer between the insulation layer and the shielding layer. When the internal temperature rises to the melting point of the phase change layer, the phase change layer absorbs excess heat and melts into a liquid state. When the internal temperature drops, the phase change layer solidifies and releases heat to compensate for the temperature drop, thereby making full use of the cable's own heat to achieve a further cold-resistant protection effect.

[0019] 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

[0020] 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.

[0021] Figure 1 is a schematic diagram of the cable appearance structure of this utility model;

[0022] Figure 2 is a schematic diagram of the cable cross-section structure of this utility model;

[0023] Figure 3 is a partial structural diagram of the cable cross-section of this utility model;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the picture:

[0026] 1. Tin-plated copper wire; 2. Sheath layer; 3. Nickel-chromium alloy wire; 4. Insulation layer; 5. Shielding layer; 6. Heat storage layer;

[0027] 51. Inner shielding layer; 52. Outer shielding layer;

[0028] 61. Phase change layer; 62. Encapsulation layer; 63. Thermal insulation layer; 64. Outer sheath layer. Detailed Implementation

[0029] 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 protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Please refer to Figures 1-3. This utility model is a cold-resistant computer cable for intelligent oil wells, including tin-plated copper wire 1.

[0032] The tin-plated copper wire 1 is multi-stranded and has a nickel-chromium alloy wire 3 embedded in the center to form a conductor layer. When current passes through the nickel-chromium alloy wire 3, the electrical energy is converted into heat energy by using Joule's law, thereby achieving a self-heating effect in the low-temperature oil well environment.

[0033] Among them, the nickel-chromium alloy wire 3 is concentrically twisted at the center of the tin-plated copper wire 1 with a twist rate of 7%.

[0034] The cable consists of a conductor layer, a shielding layer 5, a heat storage layer 6, an insulation layer 4, and a sheath layer 2 arranged from the inside out.

[0035] The heat storage layer 6 is provided with a phase change layer 61 that absorbs and releases heat. The interior is filled with a phase change material that is modified paraffin or fatty acid composite, and the outside is wrapped with an encapsulation layer 62 that promotes heat conduction. High thermal conductivity aluminum foil is used.

[0036] When the internal temperature rises to the melting point of the phase change material, the heat storage layer 6 absorbs the excess heat and melts the phase change layer 61 into a liquid state, thereby achieving the effect of storing heat energy; furthermore, when the internal temperature drops to a predetermined threshold, the phase change material solidifies and releases heat, thereby compensating for the temperature drop and maintaining the internal temperature of the cable.

[0037] The outer side of the encapsulation layer 62 is wrapped with a heat insulation layer 63 to prevent the stored heat energy from being transferred outward, which would accelerate the aging of the external structure, and at the same time achieve the effect of locking in the heat energy and preventing its dispersion; the outer side of the heat insulation layer 63 is wrapped with an outer sheath layer 64, which is an oil-proof outer layer to prevent external oil from seeping inward and affecting the use of the heat storage structure.

[0038] The shielding layer 5 is divided into inner and outer layers. The inner layer is the inner shielding part 51, and the outer layer is the outer shielding part 52. The inner shielding part 51 is a double-layer structure of tin-plated copper wire braided layer + aluminum-plastic composite tape, and the outer shielding part 52 uses aramid fiber to resist mechanical compression.

[0039] It is understandable that this utility model comprehensively solves the problems of cable cold resistance, oil stain resistance, interference resistance and mechanical protection in oil well environment by adding a self-heating conductor, a layer of shielding and pressure-resistant structure, and a middle layer of heat storage and heat release structure, and makes full use of internal heat energy to maintain the operating temperature of the cable.

[0040] A specific application of the operation process in this embodiment is as follows: When using the cable, when current passes through the nickel-chromium alloy wire 3, based on the thermal effect of the current, the internal resistance hinders the current flow, causing electrical energy to be converted into heat energy. When the internal temperature rises to a predetermined threshold, the phase change layer 61 in the heat storage layer 6 absorbs the overflowing heat, and combined with the encapsulation layer 62, promotes the heat to enter the heat storage layer 6. Then, when the internal heat of the cable decreases and a heat gap is generated, the heat of the phase change layer 61 is released to the outside, thereby maintaining the internal temperature of the cable. This ensures the temperature of the cable during operation and achieves a dynamic cold resistance effect to compensate for the temperature.

[0041] 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.

[0042] 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 cold-resistant computer cable for intelligent oil wells, comprising tin-plated copper wire (1), characterized in that: The tin-plated copper wire (1) is multi-stranded and has a nickel-chromium alloy wire (3) embedded in the center to form a conductor layer; the cable has a conductor layer, a shielding layer (5), a heat storage layer (6), an insulation layer (4) and a sheath layer (2) arranged from the inside to the outside; the heat storage layer (6) has a phase change layer (61) that absorbs and releases heat, and is wrapped with an encapsulation layer (62) that promotes heat conduction on its outside.

2. The cold-resistant computer cable for intelligent oil wells according to claim 1, characterized in that: The phase change layer (61) is filled with a modified paraffin or fatty acid composite phase change material, and the encapsulation layer (62) is made of high thermal conductivity aluminum foil.

3. The cold-resistant computer cable for intelligent oil wells according to claim 1, characterized in that: The outer side of the encapsulation layer (62) is wrapped with a heat insulation layer (63), and the outer side of the heat insulation layer (63) is wrapped with an outer sheath layer (64).

4. The cold-resistant computer cable for intelligent oil wells according to claim 1, characterized in that: The shielding layer (5) is divided into two layers, an inner layer (51) and an outer layer (52).

5. The cold-resistant computer cable for intelligent oil wells according to claim 4, characterized in that: The inner shielding part (51) is a double-layer structure consisting of a tin-plated copper wire braided layer and an aluminum-plastic composite strip.

6. The cold-resistant computer cable for intelligent oil wells according to claim 4, characterized in that: The outer shielding part (52) is made of aramid fiber to resist mechanical compression.

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