Well logging equipment for underground camera shooting

Abstract

The utility model discloses well logging equipment for underground camera shooting, and particularly relates to the technical field of underground side wells, which comprises a telescopic spring of an assembly table control assembly, the telescopic spring is connected with a positioning ring connecting groove through self elasticity extension, force is transmitted to a positioning ring, an assembly plate is promoted to rotate around a hinge point, and then a guide wheel is driven to be in contact with the well wall. A plurality of uniformly distributed guide wheels provide stable support for equipment under the action of telescopic springs, a servo motor of a driving assembly is started to drive a driving roller to rotate and reduce friction, a camera at the bottom of the driving roller moves downwards along with rotation of the driving roller, and the camera can rotate by itself or rotationally shoot by means of a special connecting structure, so that the stability is high; the guide wheels are in contact with the well wall to form a stable structure, the telescopic springs can enable the guide wheels to automatically adjust positions according to well wall conditions, underground disturbing force is resisted, and measurement accuracy is improved. In the aspect of the shooting function, the camera rotates to shoot to enlarge the range, reduce blind areas, obtain rich image information and provide sufficient data for subsequent splicing measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of underground lateral wells, in particular to a well logging device for downhole photography. Background Art

[0002] Hydrogeological survey is a process of identifying hydrogeological conditions, evaluating groundwater quantity and quality, and forecasting development trends in light of socio-economic and environmental needs through various modern means and methods. The basic tasks of hydrogeological survey include identifying the hydrogeological conditions of the survey area, the status of groundwater development and utilization, and the status of groundwater management and protection; evaluating and predicting the risks of groundwater reserves and water quality; and making specific recommendations for the rational development, safe utilization, management, and protection of groundwater resources.

[0003] At present, downhole video acquisition systems are used in hydrological borehole logging, which plays a vital role in stratum exposure, aquifer distribution, rock formation tendency and dip analysis. However, downhole video acquisition systems are mainly based on forward-looking single-channel cameras. Due to the viewing angle, forward-looking single-channel cameras have certain limitations when observing and measuring the acquired well wall images. Therefore, we propose a downhole camera logging equipment to solve the above problems. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] The control assembly comprises a plurality of support plates, the bottom of the support plate is fixedly connected to the assembly platform, the end of the support plate away from the assembly plate is hingedly hinged with the assembly plate, the end of the assembly plate away from the support plate is fixedly connected to a fixing cylinder, a rotating roller is sleeved in the fixing cylinder, a guide wheel is sleeved in the middle of the rotating roller, an installation groove is provided on the side of the assembly plate close to the center of the assembly platform, a telescopic spring is built in the installation groove, a positioning ring is provided on the end of the telescopic spring away from the assembly plate, the drive assembly comprises a servo motor, an output end of the servo motor is fixedly connected to the drive roller, an end of the drive roller away from the servo motor passes through the assembly platform and extends to the bottom of the assembly platform, and the bottom of the drive roller is fixedly connected to the camera.

[0007] Preferably, the plurality of support plates are evenly distributed around the axis of the assembly table.

[0008] Preferably, the rotating roller is rotatably connected to the inner wall of the fixed cylinder, and the guide wheel is fixedly connected to the rotating roller.

[0009] Preferably, a plurality of connection grooves are formed around the positioning ring, and the plurality of connection grooves are evenly distributed around the axis of the positioning ring.

[0010] Preferably, one end of the telescopic spring is fixedly connected to the bottom of the inner cavity of the connecting groove, and the other end of the telescopic spring is fixedly connected to the bottom of the inner cavity of the installation groove.

[0011] Preferably, a connecting belt is fixedly connected to the bottom of the positioning ring, and one end of the connecting belt away from the positioning ring is fixedly connected to the assembly platform.

[0012] Preferably, the output end of the servo motor faces the assembly platform, and two sides of the servo motor are in contact with the assembly platform and fixedly connected thereto.

[0013] Preferably, a rotary bearing is sleeved on the surface of the driving roller, and the driving roller is rotatably connected to the assembly platform via the rotary bearing.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] After the equipment is lowered underground, the telescopic spring in the assembly platform control assembly stretches using its own elasticity. Connecting to the groove in the positioning ring, it transmits force to the positioning ring, causing the assembly plate to rotate about the hinge point, thereby driving the guide wheel into contact with the wellbore wall. Multiple evenly distributed guide wheels, driven by the telescopic springs, provide stable support for the equipment. Simultaneously, the servo motor in the drive assembly activates, driving the drive roller, which rotates relative to the assembly platform via a rotating bearing, reducing friction. A camera at the base of the drive roller descends with its rotation and can rotate on its own or rotate via a special connection structure to capture images. For stability, the multiple guide wheels contact the wellbore wall, forming a stable structure. The telescopic spring allows the guide wheel to automatically adjust its position based on the wellbore wall, counteracting interference forces underground and improving measurement accuracy. Regarding the camera's imaging function, the camera rotates to expand the shooting range, reduce blind spots, and capture rich image information, providing sufficient data for subsequent splicing measurements. The structural design features a compact and rational component layout, making it easy to operate in the confined underground space. The secure and simple connection of components facilitates installation, maintenance, and repair, reducing failure rates and extending the equipment's service life, effectively ensuring efficient and accurate downhole video measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the utility model as a whole.

[0017] Figure 2 For this utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0018] Figure 3 This is a schematic diagram of the assembly plate structure of the utility model.

[0019] Figure 4This is a schematic diagram of the assembly structure of the drive component and the control component of the utility model.

[0020] Figure 5 This is a schematic diagram of the assembly structure of the infrared camera and drive components of the utility model.

[0021] In the figure: 1. Assembly table; 2. Control component; 201. Support plate; 202. Assembly plate; 203. Fixed cylinder; 204. Rotating roller; 205. Guide wheel; 206. Mounting groove; 207. Telescopic spring; 208. Positioning ring; 209. Connecting groove; 210. Connecting belt; 3. Drive component; 301. Servo motor; 302. Cable; 303. Drive roller; 304. Rotating bearing; 305. Camera. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example: Figure 1-Figure 5As shown, the utility model provides a downhole camera logging device, including an assembly platform 1, a control component 2 is provided on the top of the assembly platform 1, a drive component 3 is provided at the bottom of the assembly platform 1, the control component 2 includes a plurality of support plates 201, the bottom of the support plate 201 is fixedly connected to the assembly platform 1, the plurality of support plates 201 are evenly distributed around the axis of the assembly platform 1, the end of the support plate 201 away from the assembly plate 202 is hinged to the assembly plate 202, and the end of the assembly plate 202 away from the support plate 201 is fixedly connected to the fixed plate 202. The fixed cylinder 203 is provided with a rotating roller 204, which is rotatably connected to the inner wall of the fixed cylinder 203. A guide wheel 205 is provided in the middle of the rotating roller 204, which is fixedly connected to the rotating roller 204. A mounting groove 206 is provided on the side of the assembly plate 202 close to the center of the assembly platform 1. A telescopic spring 207 is built into the mounting groove 206. A positioning ring 208 is provided on the end of the telescopic spring 207 away from the assembly plate 202. A plurality of connecting grooves 209 are provided around the positioning ring 208. A plurality of connecting grooves 209 are evenly distributed around the axis of the positioning ring 208, one end of the telescopic spring 207 is fixedly connected to the bottom of the inner cavity of the connecting groove 209, the top of the servo motor 301 is fixedly connected to the cable 302, the other end of the telescopic spring 207 is fixedly connected to the bottom of the inner cavity of the mounting groove 206, the bottom of the positioning ring 208 is fixedly connected to the connecting belt 210, the end of the connecting belt 210 away from the positioning ring 208 is fixedly connected to the assembly table 1, and the assembly plate 202 is close to the center side of the assembly table 1. The telescopic spring in the mounting groove 206 Due to the elasticity of spring 207, telescopic spring 207 begins to stretch. It is fixedly connected to the bottom of the connecting groove 209 around the positioning ring 208, transmitting force to the positioning ring 208. After receiving the thrust of the spring, positioning ring 208 pushes the assembly plate 202 to rotate outward around the hinge point with the support plate 201. The rotation of the assembly plate 202 drives the fixed cylinder 203 and the rotating roller 204 to move, causing the guide wheel 205, which is sleeved on the middle part of the rotating roller 204, to gradually approach and eventually contact the well wall. Because the multiple support plates 201 are evenly distributed around the axis of the assembly platform 1, the multiple guide wheels 205 can evenly contact the well wall under the action of the telescopic springs 207, providing support for the equipment and ensuring its stability underground.

[0024] Furthermore, a pair of servo motors 301 are provided in the drive assembly 3. The output end of the servo motor 301 faces the assembly platform 1. Both sides of the servo motor 301 are in contact with and fixedly connected to the assembly platform 1. A drive roller 303 is fixedly connected to the output end of the servo motor 301. The end of the drive roller 303, which is remote from the servo motor 301, extends through the assembly platform 1 to the bottom of the assembly platform 1. A rotating bearing 304 is sleeved on the surface of the drive roller 303. The drive roller 303 is rotatably connected to the assembly platform 1 via the rotating bearing 304. A camera 305 is fixedly connected to the bottom of the drive roller 303. The output end of the motor drives the drive roller 303 to rotate. The driving roller 303 rotates relative to the assembly platform 1 via the rotating bearing 304, reducing frictional resistance during rotation. When the drive roller 303 rotates, the camera 305 connected to its bottom moves downward with the rotation of the drive roller 303. At the same time, the camera 305 has its own rotation function or, through a special connection structure with the drive roller 303, can achieve rotational capture during the downward movement. The captured images can be transmitted and stored for subsequent splicing processing.

[0025] Working Principle: When using this device, the equipment is lowered into the well. Due to the elastic effect of the telescopic spring 207 in the mounting groove 206 on the side of the assembly plate 202 near the center of the assembly platform 1, the telescopic spring 207 begins to expand. The telescopic spring 207 is fixedly connected to the bottom of the connecting groove 209 around the positioning ring 208, transmitting force to the positioning ring 208. After being pushed by the spring, the positioning ring 208 pushes the assembly plate 202 to rotate outward around the hinge point with the support plate 201. The rotation of the assembly plate 202 drives the fixed cylinder 203 and the rotating roller 204 to move, causing the guide wheel 205 connected to the middle of the rotating roller 204 to gradually approach and eventually contact the well wall. Because the multiple support plates 201 are evenly distributed around the axis of the assembly platform 1, the multiple guide wheels 205 can evenly contact the well wall under the action of the telescopic spring 207, providing support for the equipment and ensuring its stability underground.

[0026] After servo motor 301 is activated, the motor's output drives drive roller 303 to rotate. Drive roller 303 rotates relative to assembly platform 1 via rotary bearing 304, reducing frictional resistance during rotation. As drive roller 303 rotates, camera 305, connected to its base, moves downward as the drive roller 303 rotates. Camera 305, either equipped with its own rotational capabilities or through a special connection structure with drive roller 303, can capture rotational images during its downward movement. The captured images can be transmitted and stored for subsequent splicing. By stitching together multiple images, the overall wellbore situation can be captured, enabling well measurement.

[0027] Multiple evenly distributed guide wheels 205 provide support and contact with the wellbore wall, forming a stable structural system. Driven by telescopic springs 207, the guide wheels 205 automatically adjust their position based on the actual wellbore wall conditions, ensuring stable support in all directions. This effectively resists various interfering forces in the complex downhole environment and improves measurement accuracy. The camera 305's rotating shooting function significantly expands the shooting range and reduces blind spots. This enables the acquisition of more comprehensive and rich downhole image information, providing a sufficient data foundation for subsequent precise stitching and measurement.

[0028] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A downhole logging device for video recording, characterized in that: The invention comprises an assembly platform (1), wherein a control component (2) is provided on the top of the assembly platform (1), and a driving component (3) is provided on the bottom of the assembly platform (1). The control component (2) comprises a plurality of support plates (201), the bottom of the support plate (201) is fixedly connected to the assembly platform (1), one end of the support plate (201) away from the assembly plate (202) is hingedly connected to the assembly plate (202), one end of the assembly plate (202) away from the support plate (201) is fixedly connected to a fixed cylinder (203), a rotating roller (204) is sleeved in the fixed cylinder (203), and a guide wheel (205) is sleeved in the middle of the rotating roller (204). ), a mounting groove (206) is provided on one side of the assembly plate (202) close to the center of the assembly platform (1), a telescopic spring (207) is built into the mounting groove (206), a positioning ring (208) is provided at one end of the telescopic spring (207) away from the assembly plate (202), the driving component (3) comprises a servo motor (301), an output end of the servo motor (301) is fixedly connected to a driving roller (303), an end of the driving roller (303) away from the servo motor (301) passes through the assembly platform (1) and extends to the bottom of the assembly platform (1), and a camera (305) is fixedly connected to the bottom of the driving roller (303).

2. The downhole logging device for imaging according to claim 1, characterized in that: The plurality of support plates (201) are evenly distributed around the axis of the assembly platform (1), and a cable (302) is fixedly connected to the top of the servo motor (301).

3. The downhole logging device for imaging according to claim 1, characterized in that: The rotating roller (204) is rotatably connected to the inner wall of the fixed cylinder (203), and the guide wheel (205) is fixedly connected to the rotating roller (204).

4. The downhole logging device for imaging according to claim 1, characterized in that: A plurality of connection grooves (209) are formed around the positioning ring (208), and the plurality of connection grooves (209) are evenly distributed around the axis of the positioning ring (208).

5. The downhole logging device for imaging according to claim 4, characterized in that: One end of the telescopic spring (207) is fixedly connected to the bottom of the inner cavity of the connecting groove (209), and the other end of the telescopic spring (207) is fixedly connected to the bottom of the inner cavity of the installation groove (206).

6. The downhole logging device for imaging according to claim 1, characterized in that: A connecting belt (210) is fixedly connected to the bottom of the positioning ring (208), and one end of the connecting belt (210) away from the positioning ring (208) is fixedly connected to the assembly platform (1).

7. The downhole logging device for imaging according to claim 1, characterized in that: The output end of the servo motor (301) faces the assembly platform (1), and both sides of the servo motor (301) are in contact with the assembly platform (1) and are fixedly connected thereto.

8. The downhole logging device for imaging according to claim 1, characterized in that: A rotating bearing (304) is sleeved on the surface of the driving roller (303), and the driving roller (303) is rotationally connected to the assembly platform (1) via the rotating bearing (304).

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