Cable protective sleeve for well logging

Abstract

The utility model relates to the field of cable protection, and discloses a well logging cable protective sleeve, which comprises a protective sleeve body, and the protective sleeve body sequentially comprises an anti-puncture layer, an anti-radiation layer, a high-temperature-resistant layer, a flexible insulating layer and an internal corrosion-resistant layer from outside to inside, the anti-puncture layer, the anti-radiation layer, the high-temperature-resistant layer, the flexible insulating layer and the internal corrosion-resistant layer are fixedly connected together through fusion thermal shrinkage, the left end and the right end of the protective sleeve body are fixedly connected with fixing rings, and clamping assemblies are installed at the opposite ends of the fixing rings on the left side and the right side. According to the cable protection sleeve, the clamping plates and the arc-shaped protruding plates are arranged, so that the protection sleeve plate body can be stably clamped on the outer wall of a cable under the cooperation of the springs, the fixing rings, the telescopic push plates, the arc-shaped protruding plates, the rotating shafts, the clamping plates, the arc-shaped connectors and the protection protrusions, and the situation that the protection sleeve body easily falls off and influences the protection effect is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection, in particular to a cable protection sleeve for well logging. Background Art

[0002] The logging cable protective cover is an outer layer material used to protect the logging cable. Its main function is to protect the cable from being affected by physical, chemical and environmental factors. The logging cable protective cover plays an important role in ensuring the safe operation of the cable, extending its service life, and ensuring the accuracy of the logging data. It can also improve work efficiency and save costs.

[0003] At present, the logging protective sleeves on the market are generally sleeved on the outer wall of the cable, which is troublesome to fix and remove directly. However, the sleeves can easily cause the protective sleeves to slide to both sides, affecting the protection effect. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a logging cable protective cover, aiming to improve the problem of unstable clamping of the protective cover on the outer wall of the cable.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a protective cover for a cable for well logging, comprising a protective cover body, which comprises, from the outside to the inside, an anti-puncture layer, an anti-radiation layer, a high-temperature resistant layer, a flexible insulation layer and an internal corrosion-resistant layer. The anti-puncture layer, the anti-radiation layer, the high-temperature resistant layer, the flexible insulation layer and the internal corrosion-resistant layer are fixedly connected to each other by fusion and heat shrinkage. The left and right ends of the protective cover body are fixedly connected to fixing rings, and the opposite ends of the fixing rings on the left and right sides are both installed with clamping assemblies.

[0006] As a further description of the above technical solution:

[0007] The clamping assembly includes a clamping plate and a telescopic push plate. The outer wall of the clamping plate is fixedly connected to a rotating shaft on both sides of the inner wall of the fixing ring. The outer wall of the rotating shaft is rotatably connected to the inner wall of the fixing ring.

[0008] As a further description of the above technical solution:

[0009] The opposite ends of the clamping plates on the left and right sides are both fixedly connected with anti-slip protrusions.

[0010] As a further description of the above technical solution:

[0011] The opposite ends of the clamping plates on the left and right sides are fixedly connected with arc-shaped connecting heads, and the bottoms of the opposite ends of the telescopic push plates on the left and right sides are fixedly connected with arc-shaped raised plates, and the opposite sides of the top ends of the arc-shaped raised plates on the left and right sides are tightly attached to the bottom surface of the arc-shaped connecting heads.

[0012] As a further description of the above technical solution:

[0013] One opposite end of the telescopic push plates on the left and right sides is fixedly connected to a spring, and one opposite end of the springs on the left and right sides is fixedly connected to the inner wall of the fixing ring.

[0014] As a further description of the above technical solution:

[0015] The outer walls of the telescopic push plates are slidably connected to the inner wall of the fixing ring.

[0016] As a further description of the above technical solution:

[0017] The anti-puncture layer is made of high-strength polyimide, and the anti-radiation layer is filled with granular lead material.

[0018] As a further description of the above technical solution:

[0019] The high temperature resistant layer is made of polystyrene material, the flexible insulating layer is made of silicone rubber material, and the internal corrosion resistant layer is made of polyurethane material.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, by providing a clamping plate and an arc-shaped protrusion plate, the protective cover plate body can be stably clamped on the outer wall of the cable under the cooperation of the spring, the fixing ring, the telescopic push plate, the arc-shaped protrusion plate, the rotating shaft, the clamping plate, the arc-shaped connector and the protective protrusion, thereby preventing the protective cover body from falling off easily and affecting the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of a logging cable protective cover proposed by the utility model.

[0023] Figure 2 The present invention is a schematic diagram of a clamping plate structure of a logging cable protective cover.

[0024] Figure 3 This is a half-section view of a fixing ring of a logging cable protective sleeve proposed by the utility model.

[0025] Figure 4 This is a cross-sectional view of the protective cover body of a logging cable protective cover proposed in the utility model.

[0026] Figure numerals: 1. Protective cover body; 2. Fixing ring; 3. Clamping plate; 4. Anti-slip protrusion; 5. Rotating shaft; 6. Arc-shaped connector; 7. Arc-shaped protrusion plate; 8. Telescopic push plate; 9. Spring; 10. Anti-puncture layer; 11. Anti-radiation layer; 12. High-temperature resistant layer; 13. Flexible insulation layer; 14. Internal corrosion-resistant layer. DETAILED DESCRIPTION

[0027] The following will refer to the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0029] Reference Figure 1-4 The utility model provides an embodiment: a protective cover for a well logging cable, comprising a protective cover body 1, which comprises, from the outside to the inside, an anti-puncture layer 10, an anti-radiation layer 11, a high-temperature resistant layer 12, a flexible insulation layer 13 and an internal corrosion-resistant layer 14. The anti-puncture layer 10, the anti-radiation layer 11, the high-temperature resistant layer 12, the flexible insulation layer 13 and the internal corrosion-resistant layer 14 are fixedly connected to each other by fusion and heat shrinkage. The left and right ends of the protective cover body 1 are fixedly connected to fixing rings 2, and the opposite ends of the fixing rings 2 on the left and right sides are both installed with clamping components.

[0030] Specifically, the anti-puncture layer 10, the anti-radiation layer 11, the high-temperature resistant layer 12, the flexible insulation layer 13 and the internal corrosion-resistant layer 14 are fused and fixed to each other by heat shrinkage, making the product structure stable and not easy to be damaged, thereby improving the service life. The clamping assembly is used to fix the position of the protective sleeve body 1 on the outer wall of the cable through the fixing ring 2.

[0031] The clamping assembly includes a clamping plate 3 and a telescopic push plate 8. The outer wall of the clamping plate 3 is fixedly connected to the rotating shaft 5 on both sides of the inner wall of the fixed ring 2. The outer wall of the rotating shaft 5 is rotatably connected to the inner wall of the fixed ring 2. The opposite ends of the left and right clamping plates 3 are fixedly connected to the anti-slip protrusion 4, and the opposite ends of the left and right clamping plates 3 are fixedly connected to the arc-shaped connecting head 6. The bottom of the opposite ends of the left and right telescopic push plates 8 are fixedly connected to the arc-shaped raised plate 7, and the opposite sides of the top of the left and right arc-shaped raised plates 7 are tightly attached to the bottom surface of the arc-shaped connecting head 6. The opposite ends of the left and right telescopic push plates 8 are fixedly connected to the spring 9, and the opposite ends of the left and right springs 9 are fixedly connected to the inner wall of the fixed ring 2. The outer walls of the telescopic push plates 8 are slidably connected to the inner wall of the fixed ring 2.

[0032] Specifically, after the clamping plate 3 is opened outward so that the anti-slip protrusion 4 is in close contact with the outer wall surface of the cable, the entire cable protective cover body 1 is pushed toward the outer wall of the cable body until the fixing ring 2 on the other side completely wraps the outer wall of the cable. Under the extrusion action of the spring 9 squeezing the telescopic slide 8 to push the arc-shaped protrusion plate 7 into close contact with the bottom surface of the arc-shaped connector 6, the clamping plate 3 rotates inward to grasp the outer wall of the cable.

[0033] The anti-puncture layer 10 is made of high-strength polyimide, the radiation protection layer 11 is filled with granular lead material, the high-temperature resistant layer 12 is made of polystyrene material, the flexible insulation layer 13 is made of silicone rubber material, and the internal corrosion-resistant layer 14 is made of polyurethane material.

[0034] Specifically, high-strength polyimide has excellent mechanical and thermal properties, can provide good puncture resistance and wear resistance, and can withstand high temperatures. Lead is a commonly used radiation protection material with good absorption capacity, which can effectively block the propagation of rays. It also has high density and softness. Polystyrene foam performs well in thermal insulation and safety, and is also lightweight and flexible. Silicone rubber is a high-temperature resistant material with good waterproof and electrical insulation properties. Polyurethane has good water resistance, acid and alkali resistance, and chemical resistance. It also has good flexibility and wear resistance, which can effectively prevent corrosion of the cable exterior.

[0035] Working principle: First, when using the cable protector, first open the clamping plate 3 outward so that the anti-slip protrusion 4 is in close contact with the outer wall surface of the cable, and then push the entire cable protector body 1 toward the outer wall of the cable body until the fixing ring 2 on the other side completely wraps the outer wall of the cable. Under the action of the spring 9 squeezing the telescopic slide 8 to push the arc-shaped protrusion plate 7 to be in close contact with the bottom surface of the arc-shaped connector 6, the clamping plate 3 rotates inward to grasp the outer wall of the cable, thereby preventing the cable protector body 1 from easily sliding off the outer wall of the cable and affecting the protection effect.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A logging cable protective cover, comprising a protective cover body (1), characterized in that: The protective cover body (1) comprises, from the outside to the inside, an anti-puncture layer (10), an anti-radiation layer (11), a high-temperature resistant layer (12), a flexible insulating layer (13) and an internal corrosion-resistant layer (14). The anti-puncture layer (10), the anti-radiation layer (11), the high-temperature resistant layer (12), the flexible insulating layer (13) and the internal corrosion-resistant layer (14) are fixedly connected to each other by fusion heat shrinkage. The left and right ends of the protective cover body (1) are fixedly connected to fixing rings (2), and the opposite ends of the fixing rings (2) on the left and right sides are both equipped with clamping components.

2. The logging cable protective cover according to claim 1, characterized in that: The clamping assembly comprises a clamping plate (3) and a telescopic push plate (8), the outer wall of the clamping plate (3) corresponding to both sides of the inner wall of the fixing ring (2) are fixedly connected to a rotating shaft (5), and the outer wall of the rotating shaft (5) is rotatably connected to the inner wall of the fixing ring (2).

3. The logging cable protective cover according to claim 2, characterized in that: The opposite ends of the clamping plates (3) on the left and right sides are both fixedly connected with anti-slip protrusions (4).

4. The logging cable protective cover according to claim 2, characterized in that: The opposite ends of the clamping plates (3) on the left and right sides are fixedly connected to arc-shaped connectors (6), and the bottoms of the opposite ends of the telescopic push plates (8) on the left and right sides are fixedly connected to arc-shaped raised plates (7), and the opposite sides of the top ends of the arc-shaped raised plates (7) on the left and right sides are tightly attached to the bottom surface of the arc-shaped connector (6).

5. The logging cable protective cover according to claim 4, characterized in that: The opposite ends of the telescopic push plates (8) on the left and right sides are fixedly connected to springs (9), and the opposite ends of the springs (9) on the left and right sides are fixedly connected to the inner wall of the fixing ring (2).

6. The logging cable protective cover according to claim 2, characterized in that: The outer walls of the telescopic push plates (8) are slidably connected to the inner walls of the fixed rings (2).

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