Female wet joint for horizontal well logging
By improving the structural design of the wet joint, using components such as threaded rings and rotating blocks to achieve a tight connection, and protecting the probe head through a protective mechanism, the sealing and stability problems of traditional wet joints in horizontal well logging are solved, thereby improving the accuracy and continuity of logging.
Patent Information
- Application Number
- CN202520185308.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Traditional wet joints are difficult to guarantee sealing and connection stability in horizontal well logging. They are susceptible to high temperature, high pressure and high corrosion conditions, which can lead to sealing failure and reduced accuracy of logging data.
The structure adopts a design including threaded rings, rotating blocks, grooved discs, extrusion blocks, contact blocks, and sealing rings. The sealing ring is squeezed by the extrusion blocks to achieve a tight connection between the wet connector and the equipment. The probe is protected by a mounting plate, connecting rod, side cover, and anti-fouling cover to prevent contamination.
It improves the sealing performance and connection stability of wet joints, prevents sealing failure under high temperature, high pressure and high corrosion conditions, reduces the intrusion of contaminants, and ensures the accuracy of logging data and the continuity and stability of the work.
Smart Images
Figure CN223689692U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of detection joint, especially relates to a female wet joint for horizontal well logging. BACKGROUND
[0002] In the field of oil and gas exploration and development, horizontal well logging technology plays a crucial role, however, in the process of horizontal well logging, the traditional logging joint faces a series of challenges, and it is urgent to develop a new type of female wet joint suitable for horizontal well logging to improve the efficiency, accuracy and reliability of logging operation.
[0003] In the past horizontal well logging, after the wet joint used is connected to the detection equipment body, the sealing between the joint and the equipment body is only increased by the built-in sealing ring, in the complex water well environment, this connection mode is difficult to guarantee the sealing and connection stability of the joint, and the high temperature, high pressure, high corrosion and other harsh conditions in the horizontal well can easily lead to joint sealing failure, and the sealing failure makes the impurities and pollutants from the outside easily enter the joint and enter the equipment, affecting the transmission and accuracy of logging data, therefore, a female wet joint for horizontal well logging is proposed to solve the above problems, UTILITARIAN CONTENT
[0004] In order to make up for the above shortcomings, the utility model provides a female wet joint for horizontal well logging, which aims at improving the problems of "difficult to guarantee the sealing and connection stability of the joint, and the high temperature, high pressure, high corrosion and other harsh conditions in the horizontal well can easily lead to joint sealing failure, and the sealing failure makes the impurities and pollutants from the outside easily enter the joint and enter the equipment" in the prior art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a female wet joint for horizontal well logging, comprising an installation body, the rear part of the installation body is fixedly connected with a plug rod, the surface of the installation body is provided with a sealing mechanism, the front part of the installation body is provided with a protection mechanism, the sealing mechanism is composed of a fixed component and a sealing component, the sealing component comprises a groove disc, the inside of the groove disc is slidably connected with an extrusion block, the inner wall of the groove disc is slidably connected with a touch block, the outer side of the extrusion block is fixedly connected with a sealing ring, and the sealing ring has elasticity.
[0006] As a further description of the above technical scheme: the fixed component comprises a threaded ring, and the surface of the threaded ring is provided with a rotating block.
[0007] As a further description of the above technical scheme: the inner side of the groove disc is fixedly connected with the surface of the installation body, and the inclined surface of the extrusion block and the inclined surface of the touch block are in contact with each other.
[0008] As the further description of the above technical solution: the threaded ring is fixedly connected with the surface of the mounting body, and the rear part of the rotating block is in contact with the front part of the touch block.
[0009] As the further description of the above technical solution: the protection mechanism comprises a mounting disc, and the surface of the mounting disc is fixedly connected with a connecting rod.
[0010] As the further description of the above technical solution: the protection mechanism further comprises a side cover, and one end of the connecting rod is fixedly connected with a dirt-proof cover.
[0011] As the further description of the above technical solution: the mounting disc is fixedly connected with the surface of the mounting body, and the surface of the mounting disc is fixedly connected with the other end of the connecting rod.
[0012] As the further description of the above technical solution: the rear part of the side cover is fixedly connected with the front part of the mounting disc, and the front part of the side cover is fixedly connected with the rear part of the dirt-proof cover.
[0013] The utility model has the advantages of the following beneficial effects:
[0014] 1. In the utility model, through the cooperation of the threaded ring, the rotating block, the groove disc, the extrusion block, the touch block and the sealing ring, the design of the extrusion block extruding the sealing ring realizes the closer connection of the wet joint and the equipment, effectively guarantees the sealing property and the connection stability of the joint in the complex water well environment, prevents the high temperature, the high pressure and the high corrosion in the horizontal well from causing the sealing failure of the joint, and thus affects the accuracy and the reliability of the logging data.
[0015] 2. In the utility model, through the cooperation of the mounting disc, the connecting rod, the side cover and the dirt-proof cover, the protection of the detection head is realized, the lens is prevented from being polluted by the underground dirt, the detection head is helped to stably play its function, the measurement error and the work interruption caused by the lens pollution are reduced, and the continuity and the stability of the work are improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the female wet joint for the horizontal well logging in the utility model;
[0017] Figure 2 It is a whole structure half sectional view of the female wet joint for the horizontal well logging in the utility model;
[0018] Figure 3 It is a rotating block structure schematic view of the female wet joint for the horizontal well logging in the utility model;
[0019] Figure 4 It is a mounting disc structure schematic view of the female wet joint for the horizontal well logging in the utility model;
[0020] Legend:
[0021] 1. Mounting body; 2. Connecting rod; 3. Sealing mechanism; 301. Threaded ring; 302. Rotating block; 303. Groove plate; 304. Extrusion block; 305. Actuating block; 306. Sealing ring; 4. Protective mechanism; 401. Mounting plate; 402. Connecting rod; 403. Side cover; 404. Anti-fouling cover. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Reference Figure 1 - Figure 2 An embodiment of this utility model is provided: a female wet connector for horizontal well logging, including a mounting body 1, which is the main body of the equipment. A plug-in rod 2 is fixedly connected to the rear of the mounting body 1. The plug-in rod 2 and the mounting body 1 form a wet connector, which is plugged into the main body of the detection equipment. A sealing mechanism 3 is provided on the surface of the plug-in rod 2 and the mounting body 1. A protective mechanism 4 is provided at the front of the mounting body 1.
[0024] Reference Figure 1 - Figure 3 The sealing mechanism 3 consists of a fixing component and a sealing component. The sealing component includes a groove 303, which is a circular hollow disc. A pressing block 304 is slidably connected inside the groove 303. An actuating block 305 is slidably connected to the inner wall of the groove 303. The inclined surface of the pressing block 304 matches the inclined surface of the actuating block 305. A sealing ring 306 is fixedly connected to the outer side of the pressing block 304. The sealing ring 306 is elastic and can deform under the action of the pressing block 304. The inner side of the groove 303 is fixedly connected to the surface of the mounting body 1. The inclined surface of the pressing block 304 is in contact with the inclined surface of the actuating block 305.
[0025] Reference Figure 1 - Figure 3The fixed assembly comprises a threaded ring 301, the surface of the threaded ring 301 is provided with a rotating block 302, the rotating block 302 rotates and moves along the surface of the threaded ring 301, the rear part of the rotating block 302 after moving is in contact with a triggering block 305, the threaded ring 301 is fixedly connected with the surface of the mounting body 1, the rear part of the rotating block 302 is in contact with the front part of the triggering block 305, the wet joint is more closely connected with the equipment, the sealing property and the connection stability of the joint in the complex well environment are effectively guaranteed, the joint sealing failure caused by the high temperature, the high pressure, the high corrosion and other harsh conditions in the horizontal well is prevented, and thus the accuracy and the reliability of the logging data are affected.
[0026] With reference to Figure 4 The protection mechanism 4 comprises a mounting disc 401, the surface of the mounting disc 401 is fixedly connected with a connecting rod 402, the mounting disc 401 is mounted to the surface of the mounting body 1, the mounting disc 401 is fixedly connected with the surface of the mounting body 1, the surface of the mounting disc 401 is fixedly connected with the other end of the connecting rod 402, the protection mechanism 4 further comprises a side cover 403, under the action of the side cover 403, the side part of the detection head can be effectively protected, one end of the connecting rod 402 is fixedly connected with a dirt cover 404, the connecting rod 402 and the dirt cover 404 protect the detection camera, the rear part of the side cover 403 is fixedly connected with the front part of the mounting disc 401, the front part of the side cover 403 is fixedly connected with the rear part of the dirt cover 404, the detection head is protected, the lens is prevented from being polluted by dirt in the well, the detection head can stably play its function, the measurement error and the work interruption caused by the lens pollution are reduced, and the continuity and the stability of work are improved.
[0027] Working principle: in use, the operator in the horizontal well survey, the wet joint is connected with the detection equipment instrument, through rotating the rotating block 302, the rotating block 302 rotates and moves along the surface of the thread ring 301, the rear part of the rotating block 302 after moving is in contact with the trigger block 305, so that the rotating block 302 drives the trigger block 305 to slide along the groove disc 303, in the process of sliding of the trigger block 305, the trigger block 305 drives the extrusion block 304 to push out from the inside of the groove disc 303, so that the sealing ring 306 is deformed under the action of the extrusion block 304, so that the sealing ring 306 is more closely connected with the detection equipment, the wet joint and the equipment are more closely connected, the sealing property and the connection stability of the joint in the complex water well environment are effectively guaranteed, the high temperature, high pressure, high corrosion and other harsh conditions in the horizontal well are prevented from causing the sealing failure of the joint, so as to affect the accuracy and reliability of the logging data, at the same time, in the process of downhole survey, the operator protects the detection camera in advance, installs the mounting disc 401 to the surface of the mounting body 1, so that the connecting rod 402 and the anti-fouling cover 404 protect the detection camera, and under the action of the side cover 403, the side of the detection head can be effectively protected, the protection of the detection head is realized, the lens is prevented from being polluted by the downhole stain, which helps the detection head to stably play its function, reduces the measurement error and work interruption caused by lens pollution, and improves the continuity and stability of work.
[0028] Finally, it should be pointed out that: the above only for preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A female wet connector for horizontal well logging, comprising a mounting body (1), characterized in that: The rear part of the mounting body (1) is fixedly connected with a plug rod (2), the surface of the mounting body (1) is provided with a sealing mechanism (3), the front part of the mounting body (1) is provided with a protection mechanism (4), the sealing mechanism (3) is composed of a fixed assembly and a sealing assembly, the sealing assembly comprises a groove disc (303), the inside of the groove disc (303) is slidably connected with an extrusion block (304), the inner wall of the groove disc (303) is slidably connected with a touch block (305), the outer side of the extrusion block (304) is fixedly connected with a sealing ring (306), and the sealing ring (306) is elastic.
2. The female wet connector for use in horizontal well logging according to claim 1, characterized in that: The fixed assembly comprises a threaded ring (301), and the surface of the threaded ring (301) is provided with a rotating block (302).
3. The female wet connector for use in horizontal well logging according to claim 1, characterized in that: The inner side of the groove disc (303) is fixedly connected with the surface of the mounting body (1), and the inclined surface of the extrusion block (304) is in contact with the inclined surface of the touch block (305).
4. The female wet connector for use in horizontal well logging according to claim 2, characterized in that: The threaded ring (301) is fixedly connected with the surface of the mounting body (1), and the rear part of the rotating block (302) is in contact with the front part of the touch block (305).
5. The female wet connector for use in horizontal well logging according to claim 1, characterized in that: The protection mechanism (4) comprises a mounting disc (401), and the surface of the mounting disc (401) is fixedly connected with a connecting rod (402).
6. The female wet connector for use in horizontal well logging according to claim 5, characterized in that: The protection mechanism (4) further comprises a side cover (403), and one end of the connecting rod (402) is fixedly connected with a dirt-proof cover (404).
7. The female wet connector for use in horizontal well logging according to claim 5, characterized in that: The mounting disc (401) is fixedly connected with the surface of the mounting body (1), and the surface of the mounting disc (401) is fixedly connected with the other end of the connecting rod (402).
8. The female wet connector for use in horizontal well logging according to claim 6, characterized in that: The rear part of the side cover (403) is fixedly connected with the front part of the mounting disc (401), and the front part of the side cover (403) is fixedly connected with the rear part of the dirt-proof cover (404).