Perforating gun middle connecting structure
By designing the intermediate connection structure of the perforating gun, including the intermediate joint and the mounting seat, the problems of cumbersome connection process and increase length of the perforating gun are solved, and the convenient installation of the detonator and controller is achieved, reducing costs and weight and improving work efficiency.
Patent Information
- Application Number
- CN202421097713.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In oil and gas well perforation operation, the connection process of the perforation gun is cumbersome and requires increasing the length of the magazine frame to install the detonator and controller, which leads to an increase in the length of the perforation gun, increasing the manufacturing cost, and affecting the working efficiency.
Design a middle connection structure of perforating gun, including an intermediate joint and a mount, for connecting two adjacent perforating guns, the mount is equipped with a detonator and a controller, and connects the detonator cable and an electronic detonator through a through hole. , eliminates the need for increased length of the bullet rack and simplifies the installation process.
It realizes the installation of the detonator and controller without increasing the length of the frame, shortens the length of the perforation gun, reduces the cost, simplifies the installation process, and improves work efficiency.
Smart Images
Figure CN222333769U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil and natural gas excavation, in particular to an intermediate connection structure of a perforating gun. Background Art
[0002] In the perforating operation of oil and gas wells, multiple perforating guns are connected before going down the well. When the perforating guns are connected, the detonating cord and signal line in each perforating gun need to be connected. The installation of the perforating gun assembly is to place the end of the detonating cord, the electronic detonator, and the controller in the installation space reserved at the end of the bomb rack after the connection is completed, and fix it with tape. For this reason, the length of the bomb rack must be lengthened, and the size of the perforating gun also needs to be lengthened, which increases the manufacturing cost and increases the length of the entire string of perforating gun assemblies, which brings inconvenience to the perforating operation. In order to install the detonator inside the perforating gun, the detonator includes an electronic detonator and a detonating cord. The electronic detonator and the detonating cord need to be taken out from the inside of the perforating gun for connection, and then put back into the perforating gun after the connection is completed. Such installation and wiring methods are cumbersome, time-consuming, and inconvenient, and cannot meet the requirements of rapid installation of perforating gun assemblies, thereby affecting the overall work efficiency of the perforating operation. Utility Model Content
[0003] In order to solve the defects of the prior art that the length of the bomb rack must be increased to reserve installation space for the detonator and the controller, and the installation process is cumbersome, the utility model provides a middle connection structure of the perforating gun.
[0004] The technical solution of the utility model is: a middle connection structure of a perforating gun, including an middle joint for connecting two adjacent perforating guns, and also including at least one mounting seat that can be installed on the end of the perforating gun, an open cavity that can accommodate the mounting seat is opened at one end of the middle joint, a detonator and a controller are arranged in the mounting seat, and a through hole for the detonator to pass through is arranged on the mounting seat.
[0005] Preferably, a conductive rod is provided on the intermediate joint, a conductive connector connected to the conductive rod and transmitting signals is provided on the mounting seat, and the controller is connected to the conductive connector.
[0006] Preferably, a grounding spring connected to the controller is provided on the mounting base.
[0007] The beneficial effects of the utility model are as follows: by installing a mounting seat at the end of the bomb rack, and installing the detonator and the controller in the mounting seat, there is no need to increase the length of the bomb rack to reserve installation space for the detonator and the controller, and at the same time the length of the bomb rack and the perforating gun can be shortened, the invalid installation space at the end thereof is eliminated, the weight is reduced, the cost is reduced, and a through hole for the detonator to pass through is provided on the mounting seat, so that the detonating cord can be connected to the electronic detonator on the outside of the mounting seat, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a cross-sectional view of the structure of the utility model;
[0009] Figure 2 is a cross-sectional view of the mounting seat;
[0010] Figure 3 Schematic diagram of the mounting base structure. DETAILED DESCRIPTION
[0011] In order to better understand the concept of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0012] The technical solution of the utility model is as follows: a middle connection structure of a perforating gun, such as Figure 1 As shown, it includes an intermediate joint 1 for connecting two adjacent perforating guns, wherein the perforating gun includes a bomb rack and a gun body, the intermediate joint 1 is connected to the gun body by threads, and the device also includes at least one mounting seat 2 that can be mounted on the end of the bomb rack, in order to not install the detonator 4 and the controller 5 in the bomb rack and increase the length of the bomb rack to reserve installation space for the detonator 4 and the controller 5, as shown in FIG. Figure 1 As shown in the partial enlarged part, an inner cavity 2-1 is provided in the mounting base 2, and the detonator 4 and the controller 5 are installed in the inner cavity 2-1. The length of the bomb rack remains unchanged. The detonator 4 includes a detonating cord and an electronic detonator. The detonating cord needs to be connected to the electronic detonator on site. In order to solve the cumbersome problem of on-site installation, as shown in FIG. Figure 2 As shown, a through hole 6 is provided on the mounting base 2, and the detonating cord and the electronic detonator are both placed in the through hole 6. The electronic detonator extends out of the through hole 6, and the detonating cord passes through the through hole 6. In this way, the detonating cord can be connected to the electronic detonator only on the outside of the mounting base.
[0013] Since the installation of the mounting seat 2 at the end of the bomb rack increases the length of the perforating gun string, in order to keep the length of the perforating gun string unchanged, as shown in FIG. Figure 1 As shown in the partial enlarged portion, an open cavity 3 capable of accommodating the mounting seat 2 is provided at one end of the intermediate joint 1. The size of the open cavity 3 is slightly larger than the outer ring of the mounting seat 2. During installation, the open cavity can limit the radial movement of the mounting seat, thus achieving a limiting effect.
[0014] like Figure 1 As shown in the local enlarged part, a conductive rod 7 for transmitting signals is arranged on the middle joint 1, and the conductive rod 7 is arranged at the center of the middle joint 1. A conductive joint 8 is arranged in the mounting seat 2. The conductive rod 7 is connected to one end of the conductive joint 8, and the controller 5 is connected to the other end of the conductive joint 8 through a signal line. The controller 5 transmits signals to the conductive rod 7 through the conductive joint 8, and the conductive rod 7 transmits signals to the next-level perforating gun.
[0015] In order to ensure the safety of the controller, the controller needs to be grounded. Figure 3As shown, a grounding spring 9 is provided on the mounting base 2, and the grounding spring 9 is connected to the controller 5 through a wire. In order to further ensure the safety of the controller, three ring-shaped and evenly arranged grounding springs 9 are provided on the mounting base 2. Figure 1 As shown in the local enlarged portion, the grounding spring 9 is in contact with the gun body.
[0016] In order to facilitate the installation of the mounting base 2, as Figure 3 As shown, the mounting seat 2 is mounted on the bomb rack via a buckle 2-2, and the bomb rack is provided with a slot that cooperates with the buckle 2-2.
[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims
1. A perforating gun intermediate connection structure, comprising an intermediate joint (1) for connecting two adjacent perforating guns, characterized in that: The invention also comprises at least one mounting seat (2) which can be mounted on the end of the perforating gun, an open cavity (3) which can accommodate the mounting seat (2) is provided at one end of the intermediate joint (1), a detonator (4) and a controller (5) are provided in the mounting seat (2), and a through hole (6) for the detonator (4) to pass through is provided on the mounting seat (2).
2. A perforating gun intermediate connection structure according to claim 1, characterized in that: A conductive rod (7) is provided on the intermediate joint (1), a conductive joint (8) connected to the conductive rod (7) and transmitting signals is provided on the mounting seat (2), and the controller (5) is connected to the conductive joint (8).
3. The intermediate connection structure of a perforating gun according to claim 1, characterized in that: A grounding spring (9) connected to the controller (5) is provided on the mounting seat (2).