Gun-controlled deck cable for connecting seismic source control system and seismic source gun

Abstract

The utility model relates to a gun control deck cable for connecting a seismic source control system and a seismic source gun, and belongs to the technical field of cables for seismic exploration. According to the technical scheme, a first tinned copper conductor is externally extruded with a first TPEE insulating material to form an insulating wire core, and is extruded with a polyethylene sheath; a plurality of aramid fiber tows are synthesized into aramid fiber and the aramid fiber is wrapped outside the polyethylene sheath; a non-woven fabric I is wrapped outside the tensile layer, and an HDPE sheath is extruded outside the non-woven fabric I by using an extruder; a TPEE insulating material II is uniformly extruded on the surface of a copper conductor, then a PE small sheath is extruded in a twisted-pair manner to form a communication line, a non-woven fabric II is lapped outside a communication line layer, and a polyurethane sheath is extruded outside the non-woven fabric II. The tensile strength of the cable is improved, and the reliability and the service life of the cable are improved. And the cable has good chemical corrosion resistance, wear resistance and friction damage resistance, can adapt to severe ocean, land and other seismic exploration operation environments, and ensures that the cable can stably work for a long time in a complex environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gun control deck cable connecting a seismic source control system and a seismic source gun, and belongs to the cable technical field for seismic exploration. BACKGROUND

[0002] Among the advanced technical means for modern research and development of the ocean, marine physical detection technology has extremely great significance. A marine seismic exploration streamer system can be divided into two parts, a shipboard device and a marine device. The shipboard device includes a navigation system, a seismic source control system, a water bird control system, a streamer power supply system, a data acquisition master control system, and a data real-time storage and display system. The marine device includes a seismic source, a water bird, and a streamer. The seismic source uses a seismic source gun to simulate an artificial seismic source to generate seismic waves. The seismic source gun is connected to the shipboard seismic source control system through a gun control deck cable. In seismic exploration operations, the gun control deck cable is a key component connecting the seismic source control system and the seismic source gun, and its performance directly affects the accuracy of seismic exploration data and operation efficiency. The gun control deck cables of the prior art (including Chinese patent applications 201711430770.X and 201711430758.9) have many deficiencies in signal transmission, mechanical strength, and environmental interference resistance. For example, the transmitted signals are susceptible to electromagnetic interference, leading to data loss or errors. In complex operating environments, the cable is easily damaged by mechanical stress, affecting its service life. In addition, in harsh marine or land environments, the protective performance is poor, making it difficult to ensure long-term stable operation. SUMMARY

[0003] The utility model aims to provide a gun control deck cable connecting a seismic source control system and a seismic source gun, improve the tensile strength of the cable, improve the reliability and service life of the cable, improve the accuracy of data transmission, have good chemical corrosion resistance, wear resistance, and friction damage resistance, and be able to adapt to harsh marine, land, and other seismic exploration operating environments, ensuring long-term stable operation of the cable in complex environments, and solving the above technical problems of the prior art.

[0004] The technical solution of the utility model is as follows:

[0005] A gun control deck cable connecting a seismic source control system and a seismic source gun, comprising a power line, a tensile layer, a communication line layer and an outer sheath arranged from inside to outside, the power line in the center comprises a tin-plated copper conductor one, the tin-plated copper conductor one is extruded with TPEE insulating material one to form an insulated wire core, four insulated wire cores are twisted to form a twisted four-core power line; a polyethylene sheath is extruded outside the twisted four-core power line using an extruder; the tensile layer comprises aramid yarn, a plurality of aramid yarns are bundled to form aramid, and the whole aramid after bundling is wrapped outside the polyethylene sheath to form the tensile layer; the tensile layer is wrapped with non-woven fabric one, and an HDPE sheath is extruded outside the non-woven fabric one using an extruder; the communication line layer comprises a copper conductor, the copper conductor is uniformly extruded with TPEE insulating material two, and then is double-twisted, a PE small sheath is extruded to form a communication line, and a plurality of communication lines are wrapped outside the HDPE sheath to form the communication line layer; the communication line layer is wrapped with non-woven fabric two, and a polyurethane sheath is extruded outside the non-woven fabric two to form the outer sheath; a plurality of ridges are formed on the outer surface of the polyurethane sheath.

[0006] The copper conductor of the communication line layer is two kinds of conductors, which are silver-plated copper conductors and tin-plated copper conductors two, the silver-plated copper conductors have higher conductivity than the tin-plated copper conductors two, and the signal transmission quality can be further improved; the silver-plated copper conductors and the tin-plated copper conductors two are extruded with TPEE insulating material two, so as to ensure the electrical insulation performance of the communication line.

[0007] The tensile layer is aramid fiber wrapped outside the polyethylene sheath.

[0008] The plurality of ridges on the outer surface of the polyurethane sheath are formed by a mold, the ridges increase the friction during the operation of the cable, and in the process of laying and using the cable, the damage of the surface of the sheath caused by friction is reduced, and the service life of the cable is improved.

[0009] In order to protect the aramid yarn and enhance the integrity, the non-woven fabric two is wrapped outside the twisted aramid, the non-woven fabric two can prevent the aramid yarn from being damaged by friction, and the adhesion with the subsequent sheath is increased.

[0010] The cable has the following beneficial effects:

[0011] The aramid tensile structure is enhanced: the aramid fiber with a breaking force of greater than or equal to 2kN is used as a tensile element, and combined with a multi-layer protection structure, the tensile strength of the cable is greatly improved, so that the cable can adapt to the tensile stress in a complex operation environment, the risk of damage of the cable due to stretching is reduced, and the reliability and service life of the cable are improved.

[0012] 2. Graded Stable Signal Transmission: The grouped design of tin-plated and silver-plated copper conductors allows for graded transmission of different signal types (such as control signals and data signals), reducing high-frequency signal attenuation. The TPEE insulation and PE sheath further ensure stable and efficient signal transmission. The high conductivity of the silver-plated copper conductors effectively reduces signal transmission loss and improves data transmission accuracy, meeting the high-precision signal transmission requirements of seismic exploration.

[0013] 3. Multi-layer protection structure: The multi-layer protection structure from the inside out includes a polyethylene sheath, an HDPE sheath, a polyurethane sheath, and a raised ridge design on the sheath surface, which gives the cable good resistance to chemical corrosion, abrasion resistance, and friction damage resistance. It can adapt to harsh marine and terrestrial seismic exploration environments and ensure that the cable can work stably for a long time in complex environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0015] In the diagram: 1. Tinned copper conductor, 2. TPEE insulation material, 3. Polyethylene sheath, 4. Aramid yarn, 5. Non-woven fabric, 6. HDPE sheath, 7. Copper conductor, 8. TPEE insulation material II, 9. PE small sheath, 10. Non-woven fabric II, 11. Polyurethane sheath, 12. Rib. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] A gun control deck cable connecting a seismic source control system and a seismic source gun includes, from the inside out, a power line, a tensile layer, a communication line layer, and an outer sheath. The power line at the center comprises a tinned copper conductor 1, which is then extruded with TPEE insulation material 2 to form an insulated core. These four insulated cores are twisted together to form a twisted four-core power line. A polyethylene sheath 3 is extruded over the twisted four-core power line. The tensile layer comprises aramid filaments 4, which are bundled together to form aramid. The bundled aramid is then wrapped around the sheath. A tensile layer is formed outside the polyethylene sheath 3; a non-woven fabric 5 is wrapped around the tensile layer, and an HDPE sheath 6 is extruded over the non-woven fabric 5 using an extruder; the communication line layer includes a copper conductor 7, and TPEE insulation material 8 is uniformly extruded over the surface of the copper conductor 7 and then twisted in pairs, and a small PE sheath 9 is extruded to form a communication line, and multiple communication lines are wrapped around the HDPE sheath 6 to form a communication line layer; a non-woven fabric 10 is wrapped around the communication line layer, and a polyurethane sheath 11 is extruded over the non-woven fabric 10 to form an outer sheath; several ridges 12 are formed on the outer surface of the polyurethane sheath 11.

[0018] The copper conductor 7 of the communication line layer is two kinds of conductors, namely silver-plated copper conductor and tin-plated copper conductor two, the silver-plated copper conductor has higher conductivity than the tin-plated copper conductor two, and the silver-plated copper conductor and the tin-plated copper conductor two are both extruded with TPEE insulation material two 8 to ensure the electrical insulation performance of the communication line.

[0019] The tensile layer is a tensile element Kevlar aramid wrapped outside the polyethylene sheath 3.

[0020] In the embodiment, the 12 twisted communication lines of the copper conductor 7, of which 6 are tin-plated copper conductors two and the other 6 are silver-plated copper conductors.

[0021] The insulated wire core is composed of the tin-plated copper conductor one 1 extruded with TPEE insulation material one 2, four insulated wire cores are twisted to form a twisted four-core power line, the four-core power line is located at the center; the polyethylene sheath 3 is extruded outside the twisted four-core power line by using an extruder; the aramid is formed by bundling a plurality of aramid filaments 4, and the plurality of bundled aramids are wrapped outside the polyethylene sheath 3 to form a tensile layer; the non-woven fabric one 5 is wrapped outside the tensile layer, and the HDPE sheath 6 is extruded outside the non-woven fabric one 5 by using an extruder; the copper conductor 7 is twisted after being uniformly extruded with the TPEE insulation material two 8, the PE small sheath 9 is extruded to form a communication line, a plurality of communication lines are wrapped outside the HDPE sheath 6 and wrapped with the non-woven fabric two 10; and the polyurethane sheath 11 is extruded outside the non-woven fabric two 10.

[0022] The polyurethane sheath 11 has a plurality of ridges 12 formed on the outer surface thereof by using a mold, the ridges increase the friction during the operation of the cable, and in the process of laying and using the cable, the damage of the surface of the sheath caused by friction is reduced, and the service life of the cable is improved.

[0023] The power line is a four-core twisted power line located at the center of the cable core. The conductor of each power line adopts the tin-plated copper conductor one 1, which has good conductivity and corrosion resistance. The TPEE (thermoplastic polyester elastomer) insulation material one is extruded outside the tin-plated copper conductor, and the TPEE insulation material has excellent flexibility, wear resistance and electrical insulation performance, which can effectively protect the conductor and reduce the transmission loss of electrical signals. The four-core twisted power line is extruded with a layer of polyethylene sheath 3 on the outer side of the whole, and the polyethylene sheath 3 further enhances the integrity and protection of the cable core.

[0024] The copper conductor 7 of the communication line layer is two kinds of conductors, which are silver-plated copper conductor and tin-plated copper conductor two, the silver-plated copper conductor has higher conductivity than the tin-plated copper conductor two, which can further improve the signal transmission quality; the silver-plated copper conductor and the tin-plated copper conductor two are both extruded with TPEE insulation material two 8 to ensure the electrical insulation performance of the communication line. The paired silver-plated copper conductor or tin-plated copper conductor two is twisted, and after twisting, a PE (polyethylene) small sheath is extruded outside to form a communication line, the PE small sheath plays a role in isolating and protecting the communication line, preventing it from being mechanically damaged by the outside world.

[0025] The anti-tension layer is a Kevlar aramid fiber wrapped outside the polyethylene sheath 3, and several aramid filaments 4 are bundled together to form a high-strength anti-tension structure that can effectively withstand the tensile force of the cable during operation. Several bundled aramids are wrapped outside the polyethylene sheath 3, and the overall breaking force is ≥2kN. To protect the aramid filaments and enhance their integrity, non-woven fabric two 10 is wrapped outside the twisted and bundled aramids, which can prevent the aramid filaments from being damaged by friction and increase the adhesion to the subsequent sheath.

[0026] The outer sheath is a polyurethane sheath 11 extruded outside the non-woven fabric two 10, which not only further protects the aramid filaments, but also has good chemical corrosion resistance and mechanical properties. The polyurethane sheath 11 has good wear resistance, oil resistance and flexibility, which can effectively protect the internal structure from the influence of the external harsh environment. At the same time, several ridges 12 are arranged on the surface of the polyurethane sheath, the design of the ridges increases the friction force during the operation of the cable, and at the same time, during the laying and use of the cable, it can reduce the damage to the surface of the sheath caused by friction, and improve the service life of the cable.

Claims

1. A gun control deck cable connecting a seismic control system to a seismic gun, characterized by: The power line, the anti-pull layer, the communication line layer and the outer sheath are arranged from inside to outside. The power line in the center comprises a tin-plated copper conductor (1), and the tin-plated copper conductor (1) is extruded with TPEE insulating material (2) to form an insulated core. Four insulated cores are twisted to form a twisted four-core power line. The twisted four-core power line is extruded with a polyethylene sheath (3) by an extruder. The anti-pull layer comprises aramid filaments (4). The aramid filaments (4) are bundled to form aramid, and the bundled aramid is wrapped outside the polyethylene sheath (3) to form the anti-pull layer. The anti-pull layer is wrapped with non-woven fabric (5), and the non-woven fabric (5) is extruded with an HDPE sheath (6) by an extruder. The communication line layer comprises copper conductors (7). The copper conductors (7) are twisted after being extruded with TPEE insulating material (8) on the surface, and are extruded with a PE small sheath (9) to form a communication line. A plurality of communication lines are wrapped outside the HDPE sheath (6) to form the communication line layer. The communication line layer is wrapped with non-woven fabric (10), and the non-woven fabric (10) is extruded with a polyurethane sheath (11) to form the outer sheath. The polyurethane sheath (11) has a plurality of ridges (12) on the outer surface.

2. A gun control deck cable for connecting a seismic control system to a seismic source gun according to claim 1, wherein: The copper conductors (7) of the communication line layer are two kinds of conductors, which are silver-plated copper conductors and tin-plated copper conductors (2). The silver-plated copper conductors and the tin-plated copper conductors (2) are extruded with TPEE insulating material (8).

3. A gun control deck cable for connecting a seismic control system to a seismic source gun according to claim 1 or 2, characterized in that: The anti-pull layer is a Kevlar aramid element wrapped outside the polyethylene sheath (3).

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