Cable weight bar device

Abstract

The utility model discloses a cable weight bar device, which solves the technical problems that the on-off and insulation effects of a cable are poor, and a weight bar is easy to fall into a well after a weak point of the cable is snapped. The device comprises a cable and a cable head, and further comprises a cylindrical supporting part fixed at the top of the cable head; the connecting part is inserted into the upper end of the supporting part and is in threaded connection with the supporting part; the clamping part is arranged in the supporting part; wherein the cable sequentially penetrates through the connecting part, the clamping part, the supporting part and the cable head, and the clamping part is used for clamping and fixing the cable. According to the utility model, the on-off and insulation effects of the cable can be improved, and meanwhile, the weighting rod is arranged above the cable head, so that when a weak point of the cable is broken, the weighting rod is prevented from falling into a well, the weight and the length of a fish are reduced, and later fishing operation is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable devices, and in particular relates to a cable weighting rod device. Background Art

[0002] Nowadays, during cable logging operations, a weighted rod is usually connected above the logging instrument string to increase the weight of the logging instrument string and transmit the signal through the core at the same time.

[0003] At present, most of the core weighting rods in related technologies are directly connected to the bottom of the cable head by traditional butt thread method, which will have a certain impact on the continuity and insulation of the cable. At the same time, when the logging instrument string is stuck, it is necessary to pull the weak point of the cable from the bottom of the cable head (at the rope cap head). Since the weighting rod is located below the cable head, when the weak point of the cable is pulled off, the weighting rod will remain in the well with the logging instrument string, increasing the weight and length of the fish, thereby increasing the risk and difficulty of the later salvage operation, which needs to be improved. Utility Model Content

[0004] In order to solve all or part of the above problems, the purpose of the utility model is to provide a cable weight rod device, which can improve the cable's switching and insulation effects. At the same time, the weight rod is arranged above the cable head. When the cable weak point is broken, the weight rod is prevented from falling into the well, reducing the weight and length of the fallen fish, thereby facilitating the subsequent salvage operation.

[0005] The utility model provides a cable weighting rod device, comprising a cable line and a cable head, and the cable weighting rod device also includes:

[0006] A support portion, which is cylindrical and fixed to the top of the cable head;

[0007] A connecting portion, inserted into the upper end of the supporting portion and threadedly connected to the supporting portion;

[0008] A clamping portion, disposed in the supporting portion;

[0009] Wherein, the cable wire passes through the connecting portion, the clamping portion, the supporting portion and the cable head in sequence, and the clamping portion is used to clamp and fix the cable wire.

[0010] Optionally, the clamping portion includes two semi-conical clamping blocks, and the two clamping blocks are movably connected to the connecting portion respectively. The inner side wall of the support portion is provided with a clamping slope, and the clamping slope matches the outer side wall of the clamping block. The two clamping blocks can approach each other under the action of the clamping slope and clamp the cable together.

[0011] Optionally, the inner side walls of the two clamping blocks are respectively provided with clamping grooves for the cable to be clamped into, and when the two clamping blocks are close to and abut against each other, the two clamping grooves form a clamping hole, and the aperture of the clamping hole is smaller than the outer diameter of the cable.

[0012] Optionally, the top ends of the inner side walls of the two clamping grooves are respectively expanded and form guiding slopes.

[0013] Optionally, the inner side walls of the two clamping grooves are respectively provided with anti-slip grooves.

[0014] Optionally, the bottom end of the connecting part is coaxially fixedly connected with a connecting column, the cross-section of the connecting column is T-shaped, and the inner side walls of the two clamping blocks are respectively provided with connecting grooves matching the connecting column to achieve a snap-fit ​​connection between the clamping blocks and the connecting part.

[0015] Optionally, a locking ring is provided on the connecting portion, and an operating hole for inserting a tightening tool is opened on the locking ring.

[0016] Optionally, the locking ring is made of copper material, and the locking ring can be pressed against the top end of the supporting portion and undergo compression deformation to achieve a stop-retraction locking between the connecting portion and the supporting portion.

[0017] It can be seen from the above technical solution that the cable weighting rod device provided by the utility model has the following advantages:

[0018] The device uses a clamping part to clamp and fix the cable, so that the cable passes through the weighted rod. Compared with the method of connecting through butt threads, this design can effectively improve the sealing, breaking and insulation effects of the cable, thereby improving the stability of use. At the same time, the weighted rod is set above the cable head. When the logging instrument string is stuck and the cable weak point is broken, the weighted rod will not fall into the well with the logging instrument string, reducing the weight and length of the fish, thereby facilitating the later salvage operation.

[0019] Other features and advantages of the present invention will be described in the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 2 A cross-sectional view of an embodiment of the utility model;

[0023] Figure 3 It is an exploded view of an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Cable line; 2. Cable head; 3. Support part; 4. Connecting part; 5. Clamping part; 51. Clamping block; 52. Clamping groove; 53. Guide slope; 54. Anti-slip pattern; 55. Clamping hole; 6. Clamping slope; 7. Connecting column; 8. Connecting groove; 9. Locking ring; 10. Operating hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other arbitrarily without conflict.

[0027] like Figure 1 , Figure 2 , Figure 3 The utility model is shown in an embodiment, in which a cable weighting rod device is disclosed, including a cable 1 and a cable head 2, the top of the cable head 2 is fixedly connected with a cylindrical support part 3, the upper end of the support part 3 is inserted with a connecting part 4, and the connecting part 4 is threadedly connected with the support part 3. A clamping part 5 is arranged inside the support part 3, and the cable 1 passes through the connecting part 4, the clamping part 5, the support part 3 and the cable head 2 in sequence, and the clamping part 5 is used to clamp and fix the cable 1.

[0028] In the cable weighting rod device of this embodiment, the cable line 1 passes through the weighting rod. Compared with the connection method through the butt thread, this design can effectively improve the sealing, breaking and insulation effect of the cable, thereby improving the stability of use. At the same time, the weighting rod is set above the cable head 2. When the logging instrument string is stuck and the cable line 1 is broken at the weak point below the cable head 2, the weighting rod will not fall into the well with the logging instrument string, reducing the weight and length of the fish, thereby facilitating the later salvage operation.

[0029] In one embodiment, Figure 2 , Figure 3 As shown, the clamping portion 5 includes two semi-conical clamping blocks 51, the two clamping blocks 51 are movably connected to the connecting portion 4, and the inner side walls of the two clamping blocks 51 are respectively provided with clamping grooves 52 for the cable 1 to be clamped in. The inner side wall of the supporting portion 3 is integrally formed with a clamping slope 6, and the clamping slope 6 matches the outer side wall of the clamping block 51.

[0030] When the connection part 4 is tightened, the connection part 4 pushes the two clamping blocks 51 to move downward. At this time, the two clamping blocks 51 can approach each other under the action of the clamping inclined surface 6 and clamp the cable 1 together. When the two clamping blocks 51 approach each other and abut against each other, the two clamping grooves 52 form a clamping hole, and the cable 1 is located in the clamping hole. The aperture of the clamping hole is smaller than the outer diameter of the cable 1, so that the two clamping blocks 51 can stably clamp the cable 1.

[0031] In one embodiment, Figure 2 , Figure 3 As shown, the top positions of the inner side walls of the two clamping grooves 52 are flared and form guide slopes 53 to improve the guiding effect, so that the cable 1 can smoothly pass through the two clamping blocks 51. The inner side walls of the two clamping grooves 52 are respectively integrally formed with anti-slip grooves 54 to increase the friction between the clamping block 51 and the cable 1, thereby improving the connection stability between the clamping block 51 and the cable 1.

[0032] In one embodiment, Figure 2 , Figure 3 As shown, the bottom end of the connecting portion 4 is coaxially fixedly connected with a connecting column 7, the cross section of the connecting column 7 is T-shaped, and the inner side walls of the two clamping blocks 51 are respectively provided with connecting grooves 8 that match the connecting column 7 to achieve the snap-fit ​​connection between the clamping blocks 51 and the connecting portion 4. In this embodiment, the connecting column 7 is composed of a coaxially arranged cylinder and a disc, so that the clamping blocks 51 can rotate relative to the connecting column 7.

[0033] In one embodiment, Figure 2 , Figure 3 As shown, a locking ring 9 is provided on the connecting part 4, and an operating hole 10 for inserting a tightening tool is opened on the locking ring 9, that is, the staff can control the locking ring 9 to drive the connecting part 4 to rotate through the tightening tool, so as to realize the rapid installation of the connecting part 4 and the supporting part 3.

[0034] In one embodiment, Figure 2 , Figure 3 As shown, the locking ring 9 is made of copper material. When the connecting part 4 is tightened, the locking ring 9 is pressed against the top of the supporting part 3, and the locking ring 9 is compressed and deformed. At this time, the locking ring 9 can act as an elastic gasket, so that the screw threads between the connecting part 4 and the supporting part 3 are pressed tightly to achieve the anti-retraction locking of the connecting part 4 and the supporting part 3, reducing the risk of loosening of the two.

[0035] From the above process, it can be seen that since the weight rod is located above the cable head 2 and the cable line 1 passes through the weight rod, it does not affect the strength of the weak point of the cable head 2, nor does it affect the connection and insulation of the logging instrument string. At the same time, if the instrument is stuck and the weak point of the cable is pulled off from the rope cap head, the weight rod will not be left in the well with the instrument string, which can reduce the difficulty of salvage in the later stage, and there is no need to consider the temperature and pressure resistance of the weight rod itself.

[0036] Moreover, since the weight rod can move together with the cable line 1, when the cable line 1 is lifted, the weight rod has a counterweight effect. When the weak point is broken and reaches the wellhead, due to the weighting effect, it is not easy to form an "external spitting" phenomenon. At the same time, when it reaches the blowout preventer, it is not easy to form a blowout prevention leakage.

[0037] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention should have the common meanings understood by technicians in the field to which the present invention belongs.

[0038] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and description of the utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A cable weighting rod device, comprising a cable line (1) and a cable head (2), characterized in that: The cable weighting rod device also includes: A support portion (3) is cylindrical and fixed to the top of the cable head (2); A connecting portion (4) is inserted into the upper end of the supporting portion (3) and is threadedly connected to the supporting portion (3); A clamping portion (5) is arranged inside the supporting portion (3); The cable (1) passes through the connecting portion (4), the clamping portion (5), the supporting portion (3) and the cable head (2) in sequence, and the clamping portion (5) is used to clamp and fix the cable (1).

2. The cable weighting rod device according to claim 1, characterized in that: The clamping portion (5) comprises two semi-conical clamping blocks (51), the two clamping blocks (51) being movably connected to the connecting portion (4) respectively, the inner side wall of the supporting portion (3) being provided with a clamping inclined surface (6), the clamping inclined surface (6) matching the outer side wall of the clamping block (51), and the two clamping blocks (51) being able to approach each other under the action of the clamping inclined surface (6) and jointly clamp the cable (1).

3. The cable weighting rod device according to claim 2, characterized in that: The inner side walls of the two clamping blocks (51) are respectively provided with clamping grooves (52) for the cable (1) to be clamped in. When the two clamping blocks (51) are brought close to and abutted against each other, the two clamping grooves (52) form a clamping hole (55), and the diameter of the clamping hole (55) is smaller than the outer diameter of the cable (1).

4. The cable weighting rod device according to claim 3, characterized in that: The top ends of the inner side walls of the two clamping grooves (52) are respectively expanded and form guiding inclined surfaces (53).

5. The cable weighting rod device according to claim 3, characterized in that: The inner side walls of the two clamping grooves (52) are respectively provided with anti-slip grooves (54).

6. The cable weighting rod device according to claim 2, characterized in that: A connecting column (7) is coaxially fixedly connected to the bottom end of the connecting portion (4), and the cross section of the connecting column (7) is T-shaped. The inner side walls of the two clamping blocks (51) are respectively provided with connecting grooves (8) that match the connecting column (7) to achieve a snap-fit ​​connection between the clamping blocks (51) and the connecting portion (4).

7. The cable weighting rod device according to claim 1, characterized in that: The connecting portion (4) is provided with a locking ring (9), and the locking ring (9) is provided with an operating hole (10) for inserting a tightening tool.

8. The cable weighting rod device according to claim 7, characterized in that: The locking ring (9) is made of copper material, and the locking ring (9) can be pressed against the top end of the support portion (3) and undergo compression deformation to achieve the locking of the connection portion (4) and the support portion (3).

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