Flat packaging pipe cable with internal structure supported by thermoplastic material

Abstract

The utility model relates to the field of petroleum engineering, in particular to a flat packaging pipe cable with an internal structure supported by a thermoplastic material, which comprises a packaging layer, a pipe cable is arranged in the packaging layer, and filling strips for supporting are arranged on two sides in the packaging layer. According to the utility model, the filling part ensures the size of the outer packaging layer in the extrusion molding process, the edge part of the packaging layer is prevented from collapsing, the structure is stable, and large-length production can be carried out.

Description

Technical Field

[0001] The utility model relates to the field of petroleum engineering, in particular to a flat packaged pipe cable with an internal structure supported by a thermoplastic material. Background Art

[0002] Logging cables can be used for logging, perforating, coring and other operations in various oil and gas wells. They can also be used in water conservancy and hydrological surveys, coalfield geological exploration, geothermal logging and other aspects. They are connecting lines between ground systems and underground instruments as load-bearing connections and for transmitting measurement data.

[0003] Existing flat packaging cables are limited by the outer diameter of the internal pipeline. The size of the packaging layer can only be increased by 2 to 3 mm based on the internal pipeline size. Increasing the extrusion amount of the packaging layer will cause the packaging layer to collapse. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a flat packaged cable with internal structure supported by thermoplastic material. This utility model adopts the following technical solutions:

[0005] The utility model provides a flat packaged tube cable with an internal structure supported by a thermoplastic material, comprising a packaging layer, wherein the tube cable is arranged in the packaging layer, and filling strips for supporting are arranged at both sides of the packaging layer.

[0006] Preferably, a wire core is provided in the filling strip.

[0007] Preferably, the core is a rope or a narrow ribbon.

[0008] Preferably, there are a plurality of filling strips, and the filling strips are arranged in sequence from the middle to the edge in the packaging layer, and the outer diameters thereof gradually decrease.

[0009] Preferably, the filling strip has a cylindrical cross section.

[0010] Preferably, the encapsulation layer is trapezoidal.

[0011] Preferably, the duct cable comprises an armor layer and a cable arranged in the armor layer.

[0012] Preferably, an oil pipe is also provided in the packaging layer.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] The filling part of the utility model ensures the size of the outer packaging layer during the extrusion process and avoids the edge of the packaging layer from collapsing. The utility model has a stable structure and can be produced in a large length. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the end structure of a flat packaged cable with internal structural support made of thermoplastic material according to the present invention;

[0017] Figure 2 This is a schematic diagram of the end structure of the line-connecting sleeve of the present invention.

[0018] Explanation of the reference numerals: 1. Encapsulation layer; 2. Pipe and cable; 201. Armor layer; 202. Cable; 3. Filling strip; 301. Wire core; 4. Oil pipe; 5. Parallel sleeve. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, this embodiment discloses a flat encapsulated cable with an internal structure supported by a thermoplastic material. The cable comprises an encapsulation layer 1, which can be made of a thermoplastic material such as TPV, PP, FEP, or PVDF. Supporting filler strips 3 are provided on both sides of the encapsulation layer 1. The material of the filler strips 3 can be the same as or different from that of the encapsulation layer 1. The filler strips 3 increase the size of the encapsulated cable structure without affecting the original function of the encapsulated cable, while also providing support at the edges of the encapsulation layer 1.

[0021] In this embodiment, a core 301 is provided in the filler strip 3. The core 301 is a rope or a narrow strip. The core 301 increases the stability of the filler strip 3 during extrusion and increases the tensile strength of the filler strip 3. At the same time, the core 301 can also tear the outer packaging layer 1 by pulling the core 301 outward.

[0022] There are multiple filling strips 3 , and the filling strips 3 are arranged in sequence from the middle to the edge in the packaging layer 1 , and the outer diameters thereof gradually decrease.

[0023] In this embodiment, the encapsulation layer 1 is trapezoidal in shape, and the size of the filling strips 3 located at the side of the encapsulation layer 1 is smaller than the size of the filling strips 3 located at the inner side.

[0024] In this embodiment, the encapsulation layer 1 is provided with a pipe cable 2 and an oil pipe 4. The pipe cable 2 includes an armor layer 201 and a cable 202 disposed in the armor layer 201. The oil pipe 4 and the armor layer 201 can be made of stainless steel or alloy steel by cladding and welding.

[0025] The processing of this utility model is as follows:

[0026] First, the filling strip 3 is extruded. After the wire core 301 is released from the tensioned wire rack, appropriate tension is applied by the tension wheel. After being dried in a preheating furnace to remove moisture, it passes through the extruder head. The molten plastic covers the wire core 301 and is shaped by the outer mold. It is first cooled with warm water above 40°C to effectively reduce the internal stress of the molten plastic and reduce the risk of cracking during use. After being cooled in a normal temperature cold water tank, it enters the traction machine. The traction machine provides appropriate driving force and controls the outer diameter of the filling strip 3 by the size of the traction speed, finally forming a cylindrical filling with a rope in the middle.

[0027] Next, the encapsulation layer 1 is extruded. The ductile iron 2, oil pipe 4, and filler strip 3 are laid out on a payout rack and straightened by a straightening rack before entering the dovetail sleeve 5 (which features guide holes for the passage of these elements). Constrained and straightened by the dovetail sleeve 5, they enter the preheating furnace. This not only dries the surface of the ductile iron and cylindrical filler, but also increases their surface temperature, enhancing the wrapping force of the second encapsulation layer and reducing the possibility of loosening. After preheating, the ductile iron 2, oil pipe 4, and filler strip 3 enter the extruder head, where the molten plastic is extruded and molded around the ductile iron 2, oil pipe 4, and filler strip 3. Cooling with warm water above 40°C effectively reduces internal stress in the molten plastic, minimizing the risk of cracking during use. After cooling in a room-temperature cold water tank, the ductile iron enters the traction machine, which provides appropriate driving force and controls the outer diameter of the flat package through the traction speed.

[0028] The main protection object of the present invention is the control of the trapezoidal structure. Due to the limitation that non-metallic materials are very soft under high temperature conditions, the encapsulation layer should not be too thick without support. When the thickness exceeds 2mm, it is very easy to collapse. The cylindrical filling strip 3 effectively supports the soft encapsulation layer during the extrusion process, and at the same time reduces the distance from the main structure inside the encapsulation layer to the outer surface of the encapsulation. When designing the mold, the length of the sizing area for encapsulation shaping is increased from 10mm for normal extrusion to 16mm. This not only reduces the molding difficulty of the trapezoidal encapsulation, but also makes its size stable. Since thermoplastic plastics are used for filling and the filling sizes are not the same, when there are many internal pipelines, the internal pipelines of different sizes and different hardness will be uneven and inconsistent. Therefore, before entering the machine head, it is necessary to use a parallel sleeve 5 to fix it so that the internal pipelines can smoothly enter the machine head for encapsulation and coating. Finally, the product of the present invention is formed.

[0029] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A flat packaged cable tube with internal structural support made of thermoplastic material, comprising a packaging layer (1), wherein a cable tube (2) is arranged in the packaging layer (1), characterized in that: Filling strips (3) that play a supporting role are provided at both sides of the interior of the packaging layer (1).

2. The flat packaged umbilical cable with internal structural support made of thermoplastic material according to claim 1, characterized in that: A wire core (301) is provided in the filling strip (3).

3. The flat packaged umbilical cable with internal structural support made of thermoplastic material according to claim 2, characterized in that: The core (301) is a rope or a narrow ribbon.

4. The flat packaged umbilical cable with internal structural support made of thermoplastic material according to claim 1, characterized in that: There are a plurality of filling strips (3), and each of the filling strips (3) is arranged in sequence from the middle to the edge within the packaging layer (1), with the outer diameter gradually decreasing.

5. The flat packaged umbilical cable with internal structural support made of thermoplastic material according to claim 1, characterized in that: The cross section of the filling strip (3) is cylindrical.

6. The flat packaged umbilical cable with internal structural support made of thermoplastic material according to claim 1, characterized in that: The encapsulation layer (1) is trapezoidal.

7. The flat packaged umbilical cable with internal structural support made of thermoplastic material according to claim 1, characterized in that: The umbilical cable (2) comprises an armor layer (201) and a cable (202) arranged in the armor layer (201).

8. The flat packaged umbilical cable with internal structural support made of thermoplastic material according to claim 1, characterized in that: An oil pipe (4) is also provided in the packaging layer (1).

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