Perforated cable torpedo for combined logging instrument

Abstract

The utility model relates to the technical field of cable torpedoes, and discloses a perforation cable torpedo for a combined logging instrument, which comprises a connecting piece, cavities are arranged on two sides of the inner wall of the connecting piece, a first mounting block is arranged on the inner wall of the cavity on one side, a first connector is fixedly connected to one side of the first mounting block, and a second connector is fixedly connected to the other side of the first connector. And a second mounting block is arranged on the inner wall of the cavity on the other side, a second connector is fixedly connected to the other side of the second mounting block, connecting grooves are formed in the two ends of the sides, close to the center of the connecting piece, of the two cavities correspondingly, and external thread linear connecting pin shafts are arranged on the inner walls of the two connecting grooves correspondingly. According to the utility model, the first mounting block and the second mounting block are placed in the cavity, the external thread is in line connection with the pin shaft, and the pin shaft penetrates through the first mounting block and the second mounting block through the connecting groove, so that stable connection is realized, and the cable bridle and the cable electrode can be quickly connected through the first connector and the second connector; and the headstall can be replaced on a logging site.

Description

Technical Field

[0001] This utility model relates to the field of cable torpedo technology, and in particular to a perforating cable torpedo for a combined logging tool. Background Technology

[0002] In oil well logging and completion operations, the perforation cable torpedo of the combined logging tool is a highly integrated downhole tool, mainly used to synchronize formation parameter measurement and perforation operations. In the field of logging and perforation technology, the cable torpedo is usually a device used for perforation operations in oil and gas wells. The core function of the perforation cable torpedo is to lower the perforation device to a predetermined position in the well via a cable and complete the perforation operation.

[0003] Traditional combined logging tools using perforated cable torpedoes are inconvenient to replace cable bridles. If the bridle malfunctions or needs to be replaced, the entire device needs to be disassembled or returned to the factory for repair, which affects efficiency.

[0004] Therefore, those skilled in the art have provided a perforated cable torpedo for a combined logging tool to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a perforated cable torpedo for a combined logging tool. A first mounting block and a second mounting block are placed inside a cavity, and then a threaded pin is used to connect the pin through the connecting groove, achieving a stable connection with the connector. The first and second connectors allow for quick connection of the cable bridle and cable electrode, enabling logging teams to replace the bridle on-site.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A perforated cable torpedo for a combined logging tool includes a connector. Cavities are formed on both sides of the inner wall of the connector. A first mounting block is provided on the inner wall of one cavity, and a first connector is fixedly connected to one side of the first mounting block. A second mounting block is provided on the inner wall of the other cavity, and a second connector is fixedly connected to the other side of the second mounting block. Connecting grooves are provided at both ends of the two cavities near the center of the connector. Externally threaded slotted pins are provided on the inner walls of both connecting grooves. Nuts are fitted onto the outer walls of the rear ends of both externally threaded slotted pins.

[0008] The above technical solution involves placing the first and second mounting blocks inside the cavity, then using an external threaded slotted pin to pass through the first and second mounting blocks, achieving a stable connection with the connector. The first and second connectors enable quick connection between the cable bridle and the cable electrode, allowing the logging team to replace the bridle on-site, thus improving logging success rate and efficiency.

[0009] Furthermore, both nuts are threadedly connected to the rear end of an external thread slotted pin.

[0010] The above technical solutions ensure the stability of the connection parts, prevent loosening or detachment during use, and improve the reliability of the entire connection structure.

[0011] Furthermore, the rear ends of the two external threaded slotted connecting pins respectively pass through the first mounting block, the second mounting block, and the connecting groove to the rear end of the connecting groove;

[0012] The above technical solution reduces assembly steps, improves assembly efficiency, and lowers assembly difficulty. When it is necessary to disassemble or maintain the equipment, simply loosen the nut to pull the external thread slotted pin out of the connecting groove for quick disassembly.

[0013] Furthermore, a connecting ring is fixedly connected to the other side of the second connector;

[0014] The above technical solution allows the connecting ring to be quickly and easily connected to the cable electrode.

[0015] Furthermore, the connector, the first connector, and the second connector are all made of polyetheretherketone (PEEK).

[0016] Through the above technical solutions, polyetheretherketone (PEEK) exhibits excellent high-temperature resistance and strong resistance to most chemical reagents.

[0017] This utility model has the following beneficial effects:

[0018] 1. The present invention proposes a perforation cable torpedo for a combined logging tool, in which a first mounting block and a second mounting block are placed inside a cavity, and then a threaded pin is used to connect the pin through the first and second mounting blocks via a connecting groove, thereby achieving a stable connection with the connector. The first and second connectors enable the cable bridle and cable electrode to be quickly connected, allowing the logging team to replace the bridle on-site, thus improving the logging success rate and efficiency. Attached Figure Description

[0019] Figure 1 This is an isometric view of a perforation cable torpedo for a combined logging tool proposed in this utility model;

[0020] Figure 2 This is an exploded view of a perforating cable torpedo for a combined logging tool proposed in this utility model;

[0021] Figure 3 This is a top cross-sectional view of a perforated cable torpedo for a combined logging tool proposed in this utility model;

[0022] Figure 4 This is a partial top cross-sectional view of a perforated cable torpedo for a combined logging tool proposed in this utility model;

[0023] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Connector; 2. Cavity; 3. Connecting groove; 4. First connector; 5. First mounting block; 6. Second connector; 7. Second mounting block; 8. External threaded slotted pin; 10. Nut; 11. Connecting ring. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides a specific embodiment of a perforated cable torpedo for a combined logging tool, comprising a connector 1, cavities 2 on both sides of the inner wall of the connector 1, a first mounting block 5 on the inner wall of one side of the cavity 2, a first connector 4 fixedly connected to one side of the first mounting block 5, a second mounting block 7 on the inner wall of the other side of the cavity 2, a second connector 6 fixedly connected to the other side of the second mounting block 7, connecting grooves 3 at both ends of the two cavities 2 near the center of the connector 1, external threaded slotted pins 8 on the inner walls of the two connecting grooves 3, and nuts 10 fitted on the outer walls of the rear ends of the two external threaded slotted pins 8;

[0028] The first mounting block 5 and the second mounting block 7 are placed inside the cavity 2. Then, the external threaded slotted pin 8 is used to pass through the first mounting block 5 and the second mounting block 7 through the connecting groove 3 to achieve a stable connection with the connector 1. The first connector 4 and the second connector 6 enable the cable bridle and the cable electrode to be quickly connected, allowing the logging team to replace the bridle on the logging site, thus improving the logging success rate and efficiency.

[0029] Reference Figure 3 , Figure 4 and Figure 5 Both nuts 10 are threaded to the rear end of the external thread slotted pin 8, ensuring the stability of the connection and preventing loosening or detachment during use, thus improving the reliability of the entire connection structure. The rear ends of the two external thread slotted pins 8 pass through the first mounting block 5, the second mounting block 7, and the connecting groove 3 to the rear end of the connecting groove 3, respectively, reducing assembly steps, improving assembly efficiency, and reducing assembly difficulty. When it is necessary to disassemble or maintain the equipment, simply loosen the nuts 10 to pull the external thread slotted pin 8 out of the connecting groove 3 for quick disassembly. A connecting ring 11 is fixedly connected to the other side of the second connector 6, which facilitates quick connection with the cable electrode. The connector 1, the first connector 4, and the second connector 6 are all made of polyetheretherketone (PEEK). PEEK has excellent high-temperature resistance and exhibits strong resistance to most chemical reagents.

[0030] Working principle: The first mounting block 5 and the second mounting block 7 are placed inside the cavity 2. Then, the external threaded slotted pin 8 is used to pass through the first mounting block 5 and the second mounting block 7 through the connecting groove 3 to achieve a stable connection with the connector 1. When disassembling, simply loosen the nut 10 to pull the external threaded slotted pin 8 out of the connecting groove 3 for quick disassembly. The first connector 4 and the second connector 6 enable quick connection between the cable bridle and the cable electrode, allowing the logging team to replace the bridle on-site, thus improving the logging success rate and efficiency.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A perforating cable torpedo for a combination logging tool comprising a connector (1), characterized in that: The cavity (2) is arranged on the two sides of the inner wall of the connecting piece (1), the first mounting block (5) is arranged on the inner wall of one side of the cavity (2), the first connecting head (4) is fixedly connected to one side of the first mounting block (5), the second mounting block (7) is arranged on the inner wall of the other side of the cavity (2), and the second connecting head (6) is fixedly connected to the other side of the second mounting block (7).

2. The perforating cable torpedo for a combination logging tool according to claim 1, characterized in that: The two nuts (10) are in threaded connection with the rear ends of the outer thread one-word connecting pin shafts (8).

3. The perforating cable torpedo for a combination logging tool of claim 1, wherein: The rear ends of the two outer thread one-word connecting pin shafts (8) respectively penetrate the first mounting block (5), the second mounting block (7) and the connecting groove (3) to the rear ends of the connecting groove (3).

4. The perforating cable torpedo for a combination logging tool of claim 1 wherein: The other side of the second connecting head (6) is fixedly connected with the connecting ring (11).

5. The perforating cable torpedo for a combination logging tool of claim 1 wherein: The connecting piece (1), the first connecting head (4) and the second connecting head (6) are all made of polyether ether ketone material.

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