High-strength wear-resistant oil exploration deep well cable

Abstract

A high-strength wear-resistant oil exploration deep well cable provided by the present invention comprises a deep well cable body, the deep well cable body comprises a substrate layer, a first functional layer and a second functional layer, the first functional layer comprises a high-strength steel wire layer and a polytetrafluoroethylene coating, and the second functional layer comprises a polyurethane coating and an aramid fiber layer. The first functional layer is arranged on the outer side of the base layer, the second functional layer is arranged on the outer side of the first functional layer, and the high-strength steel wire layer is arranged on the outer side of the base layer. The first functional layer is composed of the polyurethane coating and the aramid fiber layer, the second functional layer is composed of the polyurethane coating and the aramid fiber layer, the strength and durability of the deep well cable body are remarkably enhanced, the high-strength steel wire layer in the first functional layer improves the tensile strength and compression resistance of the deep well cable body, and it is ensured that the deep well cable body can bear huge tension and pressure in deep well operation.

Description

Technical Field

[0001] The invention relates to a high-strength, wear-resistant oil exploration deep-well cable, belonging to the technical field of cables. Background Art

[0002] Deep well cables for oil exploration are a type of special cable developed specifically for the exploration of resources such as oil and natural gas. They are mainly used for logging, perforating, data transmission, and power transmission in deep and ultra-deep wells (up to several thousand meters). Some high-end models also integrate optical fiber units to achieve high-speed real-time data transmission, assisting in measurement while drilling (MWD) and formation evaluation. They are key equipment for intelligent and efficient oil exploration.

[0003] However, existing deep-well cables may lack strength and wear resistance during use. The cables are not strong enough to withstand the high tension and high pressure experienced in deep-well operations, making them prone to breakage or damage, leading to power outages or equipment failure. Secondly, poor wear resistance makes the cables susceptible to wear and tear from friction with objects such as well walls and rock formations, potentially damaging the cable's outer protective layer, exposing internal wires and increasing the risk of short circuits and leakage. Furthermore, the cables have weak corrosion resistance and may be corroded when exposed to corrosive gases and chemicals, leading to degradation of cable performance, shortened service life, increased maintenance costs, and even potentially serious safety hazards. Therefore, cables with poor strength and wear resistance can impact the safety and reliability of oil exploration operations.

[0004] Therefore, a high-strength and wear-resistant oil exploration deep well cable is proposed. Summary of the Invention

[0005] In view of this, the present invention provides a high-strength, wear-resistant oil exploration deep-well cable to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the present invention is implemented as follows: it includes a deep well cable body, which includes a base layer, a first functional layer and a second functional layer. The first functional layer includes a high-strength steel wire layer and a polytetrafluoroethylene coating, and the second functional layer includes a polyurethane coating and an aramid fiber layer.

[0007] Further preferably, the first functional layer is arranged on the outside of the base layer, and the second functional layer is arranged on the outside of the first functional layer.

[0008] Further preferably, the high-strength steel wire layer is arranged on the outside of the base layer, and the polytetrafluoroethylene coating is arranged on the outside of the high-strength steel wire layer.

[0009] Further preferably, the polyurethane coating is arranged on the outside of the polytetrafluoroethylene coating, and the aramid fiber layer is arranged on the outside of the polyurethane coating.

[0010] Further preferably, the thickness of the high-strength steel wire layer and the polytetrafluoroethylene coating are consistent, and are both 0.1 cm-0.3 cm.

[0011] Further preferably, the polyurethane coating and the aramid fiber layer have the same thickness, and are both 0.2 cm-0.4 cm.

[0012] The embodiment of the present invention adopts the above technical solution, which has the following advantages:

[0013] The present invention significantly enhances the strength and durability of the deep-well cable body by providing a first functional layer consisting of a high-strength steel wire layer and a polytetrafluoroethylene coating, and a second functional layer consisting of a polyurethane coating and an aramid fiber layer on the outside of the base layer. The high-strength steel wire layer in the first functional layer improves the tensile strength and compressive resistance of the deep-well cable body, ensuring that the deep-well cable body can withstand the tremendous tension and pressure encountered in deep-well operations. The polytetrafluoroethylene coating provides excellent wear resistance, corrosion resistance, and low friction, effectively reducing friction damage and chemical corrosion. The polyurethane coating in the second functional layer enhances the wear resistance, UV resistance, and chemical corrosion resistance of the deep-well cable body, providing additional protection for the deep-well cable body. The aramid fiber layer provides excellent tensile strength and cut resistance, ensuring the deep-well cable body maintains stability and toughness in extreme environments. This multi-layer composite structure not only improves the adaptability of the deep-well cable body in high-temperature, high-pressure, and corrosive environments, but also effectively extends the service life of the deep-well cable body, ensuring its long-term stable operation in deep-well operations.

[0014] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 It is a schematic diagram of the front structure of the main body of the present invention;

[0017] Figure 2This is a schematic diagram of the deep well cable body structure of the present invention;

[0018] Figure 3 Schematic diagram of the structure of the first functional layer in the present invention;

[0019] Figure 4 Schematic diagram of the structure of the second functional layer in the present invention.

[0020] Figure numerals: 1, deep well cable body; 101, base layer; 102, first functional layer; 1021, high-strength steel wire layer; 1022, polytetrafluoroethylene coating; 103, second functional layer; 1031, polyurethane coating; 1032, aramid fiber layer. DETAILED DESCRIPTION

[0021] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1-4 As shown, the embodiment of the present invention provides a deep well cable body 1, which includes a base layer 101, a first functional layer 102 and a second functional layer 103. The first functional layer 102 includes a high-strength steel wire layer 1021 and a polytetrafluoroethylene coating 1022. The second functional layer 103 includes a polyurethane coating 1031 and an aramid fiber layer 1032. The first functional layer 102 is arranged on the outside of the base layer 101, the second functional layer 103 is arranged on the outside of the first functional layer 102, and the high-strength steel wire layer 1021 is arranged on the outside of the base layer 101. On the outside of the base layer 101, the polytetrafluoroethylene coating 1022 is arranged on the outside of the high-strength steel wire layer 1021, the polyurethane coating 1031 is arranged on the outside of the polytetrafluoroethylene coating 1022, and the aramid fiber layer 1032 is arranged on the outside of the polyurethane coating 1031. The thickness of the high-strength steel wire layer 1021 and the polytetrafluoroethylene coating 1022 are consistent, and are both 0.1cm-0.3cm. The thickness of the polyurethane coating 1031 and the aramid fiber layer 1032 are consistent, and are both 0.2cm-0.4cm.

[0025] By arranging a first functional layer consisting of a high-strength steel wire layer 1021 and a polytetrafluoroethylene coating 1022, and a second functional layer consisting of a polyurethane coating 1031 and an aramid fiber layer 1032 on the outside of the base layer 101, the strength and durability of the deep-well cable body 1 are significantly enhanced. The high-strength steel wire layer 1021 in the first functional layer 102 improves the tensile strength and compressive resistance of the deep-well cable body 1, ensuring that the deep-well cable body 1 can withstand the huge tension and pressure in deep-well operations. The polytetrafluoroethylene coating 1022 provides excellent wear resistance, corrosion resistance and low friction properties, effectively reducing friction damage and chemical erosion. The polyurethane coating 1031 of the second functional layer 103 enhances the wear resistance, UV resistance and chemical corrosion resistance of the deep-well cable body 1, providing additional protection for the deep-well cable body 1, while the aramid fiber layer 1032 provides excellent tensile strength and cut resistance, enabling the deep-well cable body 1 to maintain stability and toughness in extreme environments. This multi-layer composite structure not only improves the adaptability of the deep-well cable body 1 in high-temperature, high-pressure and corrosive environments, but also effectively extends the service life of the deep-well cable body 1, ensuring its long-term stable operation in deep-well operations.

[0026] When the present invention is working: by setting a first functional layer 102 including a high-strength steel wire layer 1021 and a polytetrafluoroethylene coating 1022, wherein the high-strength steel wire layer 1021 can enhance the mechanical load and pressure that the deep well cable body 1 withstands in the deep well environment, greatly improving the tensile strength of the deep well cable body 1, and preventing the deep well cable body 1 from breaking or deforming during transportation, installation or use. At the same time, the high strength of the steel wire can also effectively reduce the damage to the deep well cable body 1 caused by external impact or pressure, ensuring the stability and durability of the deep well cable body 1 in harsh environments. The polytetrafluoroethylene coating 1022 has excellent corrosion resistance and can prevent the deep well cable body 1 from being corroded by acids, alkalis, salts and other chemicals, ensuring that the deep well cable body 1 can work stably in harsh deep well environments. In addition, the PTFE coating also has high temperature resistance and can withstand working conditions in high temperature environments without aging or degradation due to high temperature. The invention also provides a first functional layer 102 including a high-strength steel wire layer 1021 and a polytetrafluoroethylene coating 1022. The second functional layer 103 of the fiber layer 1032, in which the polyurethane coating 1031 has excellent UV resistance, chemical corrosion resistance and aging resistance, can prevent the deep well cable body 1 from being damaged during oil field or deep well operations. Its elasticity can also enable the deep well cable body 1 to maintain good flexibility in extreme environments, preventing the deep well cable body 1 from becoming brittle or breaking. The aramid fiber layer 1032 is a synthetic fiber with extremely high strength and excellent toughness. It can significantly improve the tensile strength and wear resistance of the deep well cable body 1, and is particularly suitable for applications under high pressure and harsh conditions. Aramid fiber has high UV resistance and can prevent ultraviolet radiation from causing aging and brittleness of the deep well cable body 1 material. Applying aramid fiber to the outer layer of the deep well cable body 1 not only enhances the strength of the deep well cable body 1, but also improves the corrosion resistance of the deep well cable body 1, adapts to the complex pressure, temperature and chemical changes in the deep well environment, and extends the service life of the deep well cable body 1.

[0027] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications and substitutions within the technical scope disclosed in the present invention, and such modifications and substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A high-strength, wear-resistant oil exploration deep-well cable, characterized by: The invention comprises a deep well cable body (1), wherein the deep well cable body (1) comprises a base layer (101), a first functional layer (102) and a second functional layer (103), wherein the first functional layer (102) comprises a high-strength steel wire layer (1021) and a polytetrafluoroethylene coating (1022), and the second functional layer (103) comprises a polyurethane coating (1031) and an aramid fiber layer (1032).

2. The high-strength, wear-resistant oil exploration deep-well cable according to claim 1, characterized in that: The first functional layer (102) is arranged on the outside of the base layer (101), and the second functional layer (103) is arranged on the outside of the first functional layer (102).

3. The high-strength, wear-resistant oil exploration deep-well cable according to claim 1, characterized in that: The high-strength steel wire layer (1021) is arranged on the outside of the base layer (101), and the polytetrafluoroethylene coating (1022) is arranged on the outside of the high-strength steel wire layer (1021).

4. The high-strength, wear-resistant oil exploration deep-well cable according to claim 1, characterized in that: The polyurethane coating (1031) is arranged on the outside of the polytetrafluoroethylene coating (1022), and the aramid fiber layer (1032) is arranged on the outside of the polyurethane coating (1031).

5. The high-strength, wear-resistant oil exploration deep-well cable according to claim 1, characterized in that: The thickness of the high-strength steel wire layer (1021) and the polytetrafluoroethylene coating (1022) are consistent, and are both 0.1cm-0.3cm.

6. The high-strength, wear-resistant oil exploration deep-well cable according to claim 1, characterized in that: The polyurethane coating (1031) and the aramid fiber layer (1032) have the same thickness, and are both 0.2 cm to 0.4 cm.

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