Universal interface for logging instrument

By using a combination design of a first positioning tube, annular groove, second positioning tube, and screw in the logging instrument interface, the problem of loose threaded connection was solved, achieving stable connection and impact resistance and corrosion resistance.

CN224244813UActive Publication Date: 2026-05-15HEBEI COAL FIELD GEOLOGY BUREAU HYDROGRAPHIC GEOLOGICAL TEAM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI COAL FIELD GEOLOGY BUREAU HYDROGRAPHIC GEOLOGICAL TEAM
Filing Date
2025-07-09
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The connectors and interfaces of existing logging instruments are connected by threaded limiters, which are prone to loosening after prolonged use, resulting in unstable connections.

Method used

The design employs a combination of a first positioning tube, annular groove, second positioning tube, and screws. The screws are distributed in an annular pattern at equal intervals to ensure the connection stability between the male and female heads. Furthermore, the addition of heat insulation tubes, corrosion-resistant tubes, and impact-resistant tubes enhances the heat resistance and corrosion resistance of the connection.

Benefits of technology

It achieves a stable connection for the logging instrument interface, prevents loosening, enhances impact resistance and corrosion resistance, and improves connection reliability.

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Abstract

The embodiment of the utility model provides a universal interface for a logging instrument, and relates to a logging instrument body. A female head is fixedly connected to the side wall of the logging instrument body, a male head is inserted into the female head, a stabilizing pipe is fixedly connected to the male head, the female head is sleeved with the stabilizing pipe, a first positioning ring is fixedly connected to the male head, and a second positioning ring is fixedly connected to the second positioning ring. A second positioning ring is fixedly connected to the female head, a first positioning pipe is fixedly connected to the first positioning ring, an annular groove is formed in the side wall of the first positioning pipe, a second positioning pipe is arranged in the annular groove, and the second positioning pipe is fixedly connected to the side wall of the second positioning ring; a plurality of screws penetrate through the first positioning pipe, threaded grooves matched with the screws are formed in the outer wall of the second positioning pipe, and the connecting structure has the advantages of being stable in connection and good in protection effect.
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Description

Technical Field

[0001] This application relates to the field of well logging instrument technology, and in particular to a universal interface for well logging instruments. Background Technology

[0002] Well logging tools are devices that measure formation parameters using the principle of nuclear magnetic resonance (NMR). They are primarily used in the petroleum industry for reservoir evaluation and geological exploration. Their core functions include acquiring key parameters such as porosity, permeability, and saturation, providing data support for oil and gas resource development.

[0003] The logging tool connects to a universal connector via a universal interface. Existing connectors and interfaces typically use threaded limits for connection, but these threads can loosen over time with prolonged use of the logging tool. Therefore, to address this deficiency, we propose a universal interface for logging tools. Utility Model Content

[0004] In view of the above problems, this application provides a universal interface for logging instruments to solve the problem that when connecting connectors and interfaces, threaded limits are generally used, but the threaded connection may loosen after the logging instrument has been used for a long time, resulting in a loose connection.

[0005] This application provides a universal interface for logging instruments, including a logging instrument body: a female head is fixedly connected to the side wall of the logging instrument body, a male head is inserted into the female head, a stabilizing tube is fixedly connected to the male head, the stabilizing tube is sleeved on the female head, a first positioning ring is fixedly connected to the male head, a second positioning ring is fixedly connected to the female head, a first positioning tube is fixedly connected to the first positioning ring, an annular groove is formed on the side wall of the first positioning tube, a second positioning tube is provided in the annular groove, the second positioning tube is fixedly connected to the side wall of the second positioning ring, a plurality of screws pass through the first positioning tube, and a threaded groove matching the screws is formed on the outer wall of the second positioning tube.

[0006] In some embodiments, a heat insulation tube is fixedly connected to the side wall of the first positioning ring, the heat insulation tube is sleeved on the male and female heads, and an anti-corrosion tube is sleeved on the heat insulation tube, the anti-corrosion tube is fixedly connected to the side wall of the second positioning ring.

[0007] In some embodiments, an impact-resistant tube is fitted onto the corrosion-resistant tube, the impact-resistant tube is fixedly connected to the side wall of the first positioning ring, and a limiting tube is fitted onto the impact-resistant tube, the limiting tube being fixedly connected to the side wall of the second positioning ring.

[0008] In some embodiments, the screws are distributed in a ring at equal intervals about the central axis of the male head.

[0009] In some embodiments, the outer wall of the first positioning tube is provided with anti-slip texture.

[0010] In some embodiments, the first positioning ring and the second positioning ring are provided with anti-slip texture.

[0011] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below.

[0012] 1. By setting up the first positioning tube, the annular groove, the second positioning tube, and the screws, the male head is inserted into the female head, so that the line is connected to the interface of the logging instrument body. At the same time, the second positioning tube is inserted into the annular groove, and then several screws are screwed on. The screws are evenly distributed in a ring shape, so that the force between the first positioning tube and the second positioning tube is uniform, thereby ensuring the connection stability between the male head and the female head.

[0013] 2. By incorporating heat insulation pipes, corrosion-resistant pipes, and impact-resistant pipes, the heat insulation pipes ensure that heat is not conducted to the male and female connectors during the use of the logging instrument. The corrosion-resistant pipes prevent corrosive substances from corroding the connection between the male and female connectors, and the impact-resistant pipes enhance the impact resistance of the connection between the male and female connectors, thereby improving the impact resistance of the male and female connectors. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a partial perspective view of this application.

[0016] Figure 2 This is a schematic diagram of the overall structure of this application.

[0017] Figure 3 This is a side view of the first positioning tube and the second positioning tube.

[0018] Figure 4 for Figure 1 Side view.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Logging instrument body; 2. Female head; 3. Male head; 4. Stabilizing tube; 5. First positioning ring; 6. Second positioning ring; 7. First positioning tube; 8. Annular groove; 9. Second positioning tube; 10. Screw; 11. Heat insulation tube; 12. Corrosion-resistant tube; 13. Impact-resistant tube; 14. Limiting tube. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples. Unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple sets" means two or more (including two sets).

[0023] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, the descriptions of directions such as the X direction, Y direction, and Z direction used to explain the operation and construction of the components in this embodiment are not absolute but relative. Although these directions are appropriate when the components are in the positions shown in the figure, they should be interpreted differently when these positions change to correspond to the changes.

[0025] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, a detachable connection, or an integral connection. In addition to referring to a physical connection, "connection" or "linkage" in circuit structures can also refer to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] To facilitate understanding of the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0027] This application provides a universal interface for logging instruments, including a logging instrument body 1: a female head 2 is fixedly connected to the side wall of the logging instrument body 1, a male head 3 is inserted into the female head 2, a stabilizing tube 4 is fixedly connected to the male head 3, the stabilizing tube 4 is sleeved on the female head 2, a first positioning ring 5 is fixedly connected to the male head 3, a second positioning ring 6 is fixedly connected to the female head 2, a first positioning tube 7 is fixedly connected to the first positioning ring 5, an annular groove 8 is formed on the side wall of the first positioning tube 7, a second positioning tube 9 is provided in the annular groove 8, the second positioning tube 9 is fixedly connected to the side wall of the second positioning ring 6, a plurality of screws 10 pass through the first positioning tube 7, and a threaded groove matching the screws 10 is formed on the outer wall of the second positioning tube 9.

[0028] In the technical solution of this application embodiment, during the use of the logging instrument body 1, the heat insulation pipe 11 ensures that heat will not be conducted to the male head 3 and female head 2, and the anti-corrosion pipe 12 prevents corrosive substances from corroding the connection between the male head 3 and female head 2. The impact-resistant pipe 13 improves the impact resistance of the connection between the male head 3 and female head 2, thereby improving the impact resistance of the male head 3 and female head 2. The heat insulation pipe 11 is fixedly connected to the side wall of the first positioning ring 5. The heat insulation pipe 11 is sleeved on the male head 3 and female head 2, and the anti-corrosion pipe 12 is sleeved on the heat insulation pipe 11. The anti-corrosion pipe 12 is fixedly connected to the side wall of the second positioning ring 6. The impact-resistant pipe 13 is sleeved on the anti-corrosion pipe 12. The impact-resistant pipe 13 is fixedly connected to the side wall of the first positioning ring 5, and the limiting pipe 14 is sleeved on the impact-resistant pipe 13. The limiting pipe 14 is fixedly connected to the side wall of the second positioning ring 6.

[0029] In the technical solution of this application embodiment, the screws 10 are equidistantly arranged to improve the connection stability between the first positioning ring 5 and the second positioning ring 6. A plurality of screws 10 are distributed in a ring at equal intervals about the central axis of the male head 3. Anti-slip textures are provided on the outer wall of the first positioning tube 7, and anti-slip textures are provided on the first positioning ring 5 and the second positioning ring 6.

[0030] Working principle: During use, the male connector 3 is inserted into the female connector 2, connecting the line to the interface of the logging instrument body 1. At the same time, the second positioning tube 9 is inserted into the annular groove 8, and then several screws 10 are tightened to ensure the stability of the connection between the male connector 3 and the female connector 2. During the use of the logging instrument body 1, the heat insulation tube 11 ensures that heat will not be conducted to the male connector 3 and the female connector 2, and the anti-corrosion tube 12 prevents corrosive substances from corroding the connection between the male connector 3 and the female connector 2. Furthermore, the impact-resistant tube 13 improves the impact resistance of the connection between the male connector 3 and the female connector 2, thereby enhancing the impact resistance of the male connector 3 and the female connector 2.

[0031] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0032] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A universal interface for well logging instruments, characterized in that, The well logging instrument body (1) includes a female head (2) fixedly connected to the side wall of the well logging instrument body (1), a male head (3) inserted into the female head (2), a stabilizing tube (4) fixedly connected to the male head (3), the stabilizing tube (4) being sleeved on the female head (2), a first positioning ring (5) fixedly connected to the male head (3), a second positioning ring (6) fixedly connected to the female head (2), a first positioning tube (7) fixedly connected to the first positioning ring (5), an annular groove (8) being provided on the side wall of the first positioning tube (7), a second positioning tube (9) being provided in the annular groove (8), the second positioning tube (9) being fixedly connected to the side wall of the second positioning ring (6), a number of screws (10) passing through the first positioning tube (7), and a threaded groove matching the screws (10) being provided on the outer wall of the second positioning tube (9).

2. The universal interface for logging instruments according to claim 1, characterized in that, A heat insulation tube (11) is fixedly connected to the side wall of the first positioning ring (5). The heat insulation tube (11) is sleeved on the male head (3) and the female head (2). A corrosion-resistant tube (12) is sleeved on the heat insulation tube (11). The corrosion-resistant tube (12) is fixedly connected to the side wall of the second positioning ring (6).

3. The universal interface for logging instruments according to claim 2, characterized in that, The corrosion-resistant tube (12) is fitted with an impact-resistant tube (13), which is fixedly connected to the side wall of the first positioning ring (5). The impact-resistant tube (13) is fitted with a limiting tube (14), which is fixedly connected to the side wall of the second positioning ring (6).

4. The universal interface for logging instruments according to claim 1, characterized in that, Several of the screws (10) are distributed in a ring at equal intervals about the central axis of the male head (3).

5. A universal interface for logging instruments according to claim 1, characterized in that, The outer wall of the first positioning tube (7) is provided with anti-slip texture.

6. A universal interface for logging instruments according to claim 1, characterized in that, The first positioning ring (5) and the second positioning ring (6) are provided with anti-slip texture.