Underground imager

Abstract

The underground imager comprises a ring seat and a controller, an infrared imaging machine head is assembled at the bottom of the ring seat, the controller and the infrared imaging machine head are in control connection through a cable, supporting mechanisms are arranged on the peripheral side of the ring seat, and multiple sets of supporting mechanisms are evenly arranged around the ring seat; the supporting mechanism comprises an electric push rod radially assembled on the side portion of the ring seat, the electric push rod is provided with a telescopic rod extending in the direction away from the ring seat, a positioning plate is assembled at the end of the telescopic rod, elastic supporting pieces are further assembled on the two sides of the end of the telescopic rod, and auxiliary rolling wheels are rotationally assembled at the ends, away from the ring seat, of the elastic supporting pieces. The device is reasonable in overall structure, has underground large-range and high-effect infrared imaging detection performance, has a protection function, can prevent the infrared imaging machine head from being collided and damaged in the lowering process, and is more suitable for underground imaging detection operation.

Description

Technical Field

[0001] The invention relates to the technical field of downhole detection, in particular to a downhole imaging instrument. Background Art

[0002] With the continuous deepening of human use of underground space, from the exploration and development of energy such as oil and natural gas, to the protection and utilization of groundwater resources, to geological survey and disaster prevention in infrastructure construction, downhole imaging technology, with its unique advantages, has become a key means to solve these complex problems. In the exploration and development of fossil energy such as oil and natural gas, downhole imaging technology can directly observe key information such as geological structure, rock distribution, fracture development and fluid properties inside the wellbore. In the field of infrastructure engineering, such as the construction of tunnels, subways, bridges and other projects, the complexity of geological conditions often brings huge challenges to construction. Downhole imaging technology can go deep underground and conduct detailed detection of geological structure, rock strength, groundwater distribution, etc., providing important reference for project site selection, optimization of design schemes and risk control during construction. In archaeological excavations, downhole imaging technology can non-destructively reveal the structure and layout of ancient relics and tombs, providing valuable clues and evidence for archaeologists. In terms of natural disaster warning and monitoring, downhole imaging technology can predict the probability of natural disasters such as earthquakes, landslides, and mudslides by observing changes in underground geological structures, providing timely and accurate information for disaster prevention and emergency response.

[0003] Downhole imagers, also known as downhole televisions or imaging logging instruments, use the principle of optical imaging to capture images of the inner wall of the well pipe through a camera lens, and transmit these images to the ground for real-time display and analysis. Traditional downhole imagers are usually composed of a main control box, a camera probe, a winch, special cables and other parts. These parts work together to ensure that the instrument can go deep into the well and capture high-quality images. However, in actual application, it is found that after the camera probe is lowered into the well by the winch, it is easy for the probe to collide with the well wall due to the swing of the cable, which can easily cause damage to the probe. For this reason, the present invention proposes a downhole imager. Summary of the invention

[0004] The purpose of the present invention is to provide a downhole imager with a large-scale, high-efficiency infrared imaging detection performance in the well, and a protective function to prevent the infrared imaging head from being damaged by collision during the lowering process, and is more suitable for downhole imaging detection operations.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A downhole imaging instrument comprises a ring seat and a controller, wherein an infrared imaging head is mounted at the bottom of the ring seat, wherein the controller and the infrared imaging head are connected by cable control, wherein a supporting mechanism is arranged on the circumference of the ring seat, wherein a plurality of supporting mechanisms are evenly arranged around the ring seat; wherein the supporting mechanism comprises an electric push rod radially mounted on the side of the ring seat, wherein the electric push rod has a telescopic rod extending in a direction away from the ring seat, wherein a positioning plate is mounted at the end of the telescopic rod, wherein elastic support members are mounted on both sides of the end of the telescopic rod, wherein an auxiliary roller is rotatably mounted at one end of the elastic support member away from the ring seat.

[0007] Preferably, the ring seat includes a ring plate and a central axis plate centrally arranged inside the ring plate, the top of the central axis plate is equipped with a driving motor, the bottom of the driving motor is vertically rotatably equipped with a shaft rod, the shaft rod is coaxially connected to the output shaft of the driving motor, and the infrared imaging head is assembled at the bottom end of the shaft rod.

[0008] Preferably, a plurality of support rods are radially fixed between the side wall of the central axis plate and the inner wall of the ring plate, a U-shaped frame is fixed on the top of the central axis plate, a lifting ring is provided on the top of the U-shaped frame, and a rope is tied to the lifting ring.

[0009] Preferably, a mounting arm is radially arranged on the outer peripheral wall of the ring plate, a mounting hole is opened in the mounting arm, the mounting hole passes through the end surface of the mounting arm away from the ring plate, and the electric push rod is assembled in the mounting hole.

[0010] Preferably, the bottom end of the infrared imaging head is configured as a cone structure, and a plurality of infrared probes are evenly mounted on the cone surface and the bottom end surface of the bottom end of the infrared imaging head.

[0011] Preferably, the end of the telescopic rod is fixedly connected with a connecting block, a pillar is fixed to a side of the connecting block away from the telescopic rod, and the positioning plate is fixed to the end of the pillar.

[0012] Preferably, a side of the positioning plate away from the support pillar is provided with a cone spike, and a plurality of the cone spikes are arranged side by side.

[0013] Preferably, assembly arms are fixed on both side walls of the connection block adjacent to the pillar, and a pair of elastic support members are respectively assembled on a pair of assembly arms.

[0014] Preferably, the elastic support member includes a sleeve fixedly inserted into the end of the assembly arm away from the connecting block, a movable rod movably inserted into the end of the sleeve away from the electric push rod, the auxiliary roller is assembled at the end of the movable rod extending out of the sleeve, a stop block is provided at the end of the movable rod extending into the interior of the sleeve, and a spring is provided between the stop block and the inner end wall of the sleeve.

[0015] Preferably, one side of the controller is equipped with a display screen, both end surfaces of the controller are provided with grips, and control buttons are provided on both sides of the display screen near the grips.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can hoist the ring seat and the infrared imaging head into the well by setting a rope. Through the multiple groups of supporting mechanisms arranged around the ring seat, during the lowering process of the ring seat and the infrared imaging head, the auxiliary rollers in the multiple groups of supporting mechanisms can cooperate to roll along the well wall, ensuring that the ring seat and the infrared imaging head can be lowered smoothly. At the same time, the elastic support of the auxiliary rollers by springs can effectively prevent the ring seat and the infrared imaging head from colliding with the well wall and causing damage during the lowering process. By setting the electric push rod, the lowering of the infrared imaging head and the ring seat is stopped, and by starting the electric push rods in the multiple groups of supporting mechanisms, the telescopic rods are pushed to spread the multiple positioning plates, and the auxiliary rollers are first in contact with the well wall, and as the electric push rods continue to push the positioning plates, the auxiliary rollers push the movable rods embedded in the sleeve to compress the springs, and the multiple positioning plates can be in close contact with the well wall. The cone spikes set on the positioning plates can prevent the positioning plates from slipping on the well wall, and the ring seat and the infrared imaging head can be more firmly positioned underground. At this time, the infrared probe assembled on the infrared imaging head can be used to carry out infrared imaging detection operations, with a reasonable structure and easy operation.

[0018] The present invention has a structural design in which the bottom end of the infrared imaging head is arranged as a cone structure, and the infrared probe is evenly assembled on the cone surface and the bottom end surface of the bottom end of the infrared imaging head. The drive motor is started to drive the shaft rod and the infrared imaging head to rotate, which not only expands the scope of underground infrared imaging detection, but also improves the effect of underground infrared imaging detection. After the infrared imaging detection of the depth in the well is completed, the electric push rods in the multiple groups of support mechanisms are started to retract, driving the multiple positioning plates to separate from the well wall and retract, and the rope can be further loosened to lower the infrared imaging head and the ring seat to perform imaging detection at a deeper depth in the well.

[0019] The downhole imager has a reasonable overall structure, has a large-range, high-efficiency infrared imaging detection performance underground, and has a protective function to prevent collision damage during the lowering of the infrared imaging head, making it more suitable for downhole imaging detection operations.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the support mechanism of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the ring seat of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the infrared imaging head of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the positioning plate of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the elastic support member of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the controller of the present invention.

[0028] In the figure: 1. ring seat; 2. infrared imaging head; 3. controller; 4. supporting mechanism; 5. electric push rod; 6. telescopic rod; 7. positioning plate; 8. assembly arm; 9. elastic support; 10. auxiliary roller; 11. ring plate; 12. mounting arm; 13. mounting hole; 14. central axis plate; 15. support rod; 16. driving motor; 17. shaft rod; 18. U-shaped frame; 19. lifting ring; 20. rope; 21. infrared probe; 22. connecting block; 23. support; 24. spike; 25. sleeve; 26. movable rod; 27. stopper; 28. spring; 29. ​​display screen; 30. control button; 31. handle. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. The following describes various embodiments of the present invention in detail in conjunction with the drawings.

[0030] Example

[0031] See also Figures 1 to 7The present invention preferably provides a technical solution: a downhole imaging instrument, including a ring seat 1 and a controller 3, an infrared imaging head 2 is installed at the bottom of the ring seat 1, the controller 3 and the infrared imaging head 2 are connected by cable control, a support mechanism 4 is arranged on the peripheral side of the ring seat 1, and multiple groups of the support mechanism 4 are evenly arranged around the ring seat 1; the support mechanism 4 includes an electric push rod 5 radially installed on the side of the ring seat 1, the electric push rod 5 has a telescopic rod 6 extending in a direction away from the ring seat 1, the end of the telescopic rod 6 is equipped with a positioning plate 7, and both sides of the end of the telescopic rod 6 are also equipped with elastic support members 9. The end of the elastic support member 9 away from the ring seat 1 is rotatably equipped with an auxiliary roller 10. The ring seat 1 and the infrared imaging head 2 are hoisted into the well. Through the multiple sets of support mechanisms 4 arranged around the ring seat 1, during the lowering process of the ring seat 1 and the infrared imaging head 2, the auxiliary rollers 10 in the multiple sets of support mechanisms 4 can cooperate to roll along the well wall, ensuring that the ring seat 1 and the infrared imaging head 2 can be smoothly lowered. At the same time, the elastic support of the auxiliary rollers 10 by the elastic support member 9 can effectively prevent the ring seat 1 and the infrared imaging head 2 from colliding with the well wall and causing damage during the lowering process. By setting the electric push rod 5, the lowering of the infrared imaging head 2 and the ring seat 1 is stopped, and the electric push rods 5 in the multiple support mechanisms 4 are started to push the multiple positioning plates 7 to spread, and the auxiliary rollers 10 are first in contact with the well wall. As the electric push rods 5 continue to push the positioning plates 7, the auxiliary rollers 10 cooperate with the elastic support members 9 to elastically contract, and the multiple positioning plates 7 can be in close contact with the well wall, so that the ring seat 1 and the infrared imaging head 2 can be positioned underground. At this time, the infrared imaging head 2 can be used to perform infrared imaging detection operations, with a reasonable structure and easy operation.

[0032] As a preferred implementation of this embodiment, the bottom end of the infrared imaging head 2 is set as a cone structure, and a plurality of infrared probes 21 are evenly mounted on the cone surface and the bottom end surface of the bottom end of the infrared imaging head 2. The ring seat 1 includes a ring plate 11 and a central axis plate 14 centrally arranged inside the ring plate 11, a driving motor 16 is mounted on the top of the central axis plate 14, and a shaft 17 is mounted on the bottom of the driving motor 16 for vertical rotation, and the shaft 17 is coaxially connected to the output shaft of the driving motor 16, and the infrared imaging head 2 is mounted on the bottom end of the shaft 17. The bottom end of the infrared imaging head 2 is set as a cone structure, and the infrared probes 21 are evenly mounted on the cone surface and the bottom end surface of the bottom end of the infrared imaging head 2. The driving motor 16 is started to drive the shaft 17 and the infrared imaging head 2 to rotate, which not only expands the range of underground infrared imaging detection, but also improves the effect of underground infrared imaging detection.

[0033] In this embodiment, a plurality of support rods 15 are radially fixed between the side wall of the central axis plate 14 and the inner wall of the ring plate 11. A U-shaped frame 18 is fixed on the top of the central axis plate 14. A lifting ring 19 is provided at the top of the U-shaped frame 18. A rope 20 is tied to the lifting ring 19. By loosening and reeling in the rope 20, the ring seat 1 and the infrared imaging head 2 can be hoisted or pulled downhole. A mounting arm 12 is radially provided on the outer peripheral wall of the ring plate 11. A mounting hole 13 is provided in the mounting arm 12. The mounting hole 13 penetrates the end surface of the mounting arm 12 away from the ring plate 11. The electric push rod 5 is assembled in the mounting hole 13 to ensure that the electric push rod 5 is firmly installed.

[0034] In a further embodiment, the end of the telescopic rod 6 is fixedly connected to a connecting block 22, a support 23 is fixed to a side of the connecting block 22 away from the telescopic rod 6, a positioning plate 7 is fixed to the end of the support 23, and a side of the positioning plate 7 away from the support 23 is provided with a cone thorn 24, and a plurality of cone thorns 24 are arranged side by side. Through the provision of the cone thorns 24, the positioning plate 7 can be prevented from slipping on the well wall, and the ring seat 1 and the infrared imaging head 2 can be more stably positioned underground.

[0035] Furthermore, assembly arms 8 are fixed on both side walls adjacent to the connecting block 22 and the pillar 23, and a pair of elastic support members 9 are respectively assembled on the pair of assembly arms 8. The elastic support member 9 includes a sleeve 25 fixedly penetrated at one end of the assembly arm 8 away from the connecting block 22, and a movable rod 26 is movably penetrated at one end of the sleeve 25 away from the electric push rod 5. The auxiliary roller 10 is assembled at one end of the movable rod 26 extending out of the sleeve 25, and a stopper 27 is arranged at one end of the movable rod 26 extending into the sleeve 25. A spring 28 is arranged between the stopper 27 and the inner end wall of the sleeve 25. The spring 28 is used to elastically support the auxiliary roller 10, so that the auxiliary roller 10 can prevent the infrared imaging head 2 from colliding with the well wall while facilitating the positioning of the ring seat 1 and the infrared imaging head 2 in the well.

[0036] In a further embodiment, the controller 3 is respectively connected to the infrared imaging head 2, the electric push rod 5 and the drive motor 16 through cables. A display screen 29 is mounted on one side of the controller 3 for displaying downhole imaging, and handles 31 are disposed on both ends of the controller 3. Control buttons 30 are disposed near the handles 31 on both sides of the display screen 29, so that the operator can operate the controller 3 by holding it.

[0037] When in use, the ring seat 1 and the infrared imaging head 2 are hoisted into the well by the rope 20. During the lowering process of the ring seat 1 and the infrared imaging head 2, the auxiliary rollers 10 in the multiple support mechanisms 4 can cooperate to roll along the well wall to ensure that the ring seat 1 and the infrared imaging head 2 can be smoothly lowered. At the same time, the elastic support of the auxiliary rollers 10 by the springs 28 can effectively prevent the ring seat 1 and the infrared imaging head 2 from colliding with the well wall and causing damage during the lowering process. Further, when surveying and mapping is required, the lowering of the infrared imaging head 2 and the ring seat 1 is stopped, and then the electric push rods 5 in the multiple support mechanisms 4 are started to push the telescopic rods 6 to spread the multiple positioning plates 7. During this process, the auxiliary rollers 10 first contact the well wall, and as the electric push rods 5 continue to push the positioning plates 7, the auxiliary rollers 10 push the movable rods 26 embedded in the sleeve 25 to compress the springs 28 until the multiple positioning plates 7 are in close contact with the well wall. The cone spikes 24 provided on the positioning plates 7 can prevent the positioning plates 7 from slipping on the well wall, which can be more stable. The ring seat 1 and the infrared imaging head 2 are firmly positioned underground. At this time, the infrared probe 21 installed on the infrared imaging head 2 can be used to perform infrared imaging detection operations, wherein the bottom end of the infrared imaging head 2 is set as a cone structure, and the infrared probe 21 is evenly assembled on the cone surface and the bottom end surface of the bottom end of the infrared imaging head 2. The drive motor 16 is started to drive the shaft 17 and the infrared imaging head 2 to rotate, which not only expands the range of underground infrared imaging detection, but also improves the effect of underground infrared imaging detection. After the infrared imaging detection of this depth in the well is completed, the electric push rods 5 in the multiple groups of support mechanisms 4 are started to contract, driving the multiple positioning plates 7 to separate from the well wall and close together. At this time, the rope 20 can be continued to be loosened to lower the infrared imaging head 2 and the ring seat 1, and imaging detection can be performed deeper in the well. The overall structure is reasonable, has a large range and high-effect infrared imaging detection performance in the well, and has a protective function to prevent the infrared imaging head 2 from being damaged by collision during the lowering process, and is more suitable for underground imaging detection operations.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. There are many ways of detachable installation, for example, it can be through the method of plug-in and snap-on matching, and for example, through the method of bolt connection, etc.

[0039] The above clearly and completely describes the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0040] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A downhole imaging instrument, comprising a ring seat (1) and a controller (3), characterized in that: The bottom of the ring seat (1) is equipped with an infrared imaging head (2), the controller (3) and the infrared imaging head (2) are connected by cable control, and a supporting mechanism (4) is arranged on the peripheral side of the ring seat (1), and a plurality of groups of the supporting mechanisms (4) are evenly arranged around the ring seat (1); The support mechanism (4) comprises an electric push rod (5) radially mounted on the side of the ring seat (1), the electric push rod (5) having a telescopic rod (6) extending in a direction away from the ring seat (1), a positioning plate (7) being mounted at the end of the telescopic rod (6), elastic support members (9) being mounted on both sides of the end of the telescopic rod (6), and an auxiliary roller (10) being rotatably mounted at one end of the elastic support member (9) away from the ring seat (1).

2. A downhole imaging instrument according to claim 1, characterized in that: The ring seat (1) comprises a ring plate (11) and a central axis plate (14) centrally arranged inside the ring plate (11); a driving motor (16) is mounted on the top of the central axis plate (14); a shaft (17) is vertically rotatably mounted on the bottom of the driving motor (16); the shaft (17) is coaxially connected to the output shaft of the driving motor (16); and the infrared imaging head (2) is mounted on the bottom end of the shaft (17).

3. A downhole imaging instrument according to claim 2, characterized in that: A plurality of support rods (15) are radially fixed between the side wall of the central axis plate (14) and the inner wall of the ring plate (11); a U-shaped frame (18) is fixed on the top of the central axis plate (14); a lifting ring (19) is provided on the top of the U-shaped frame (18); and a rope (20) is tied to the lifting ring (19).

4. A downhole imaging instrument according to claim 2, characterized in that: A mounting arm (12) is radially arranged on the outer peripheral wall of the ring plate (11), and a mounting hole (13) is opened in the mounting arm (12). The mounting hole (13) passes through the end surface of the mounting arm (12) away from the ring plate (11), and the electric push rod (5) is assembled in the mounting hole (13).

5. A downhole imaging instrument according to claim 1, characterized in that: The bottom end of the infrared imaging head (2) is arranged as a cone structure, and a plurality of infrared probes (21) are evenly mounted on the cone surface and the bottom end surface of the bottom end of the infrared imaging head (2).

6. A downhole imaging instrument according to claim 1, characterized in that: The end of the telescopic rod (6) is fixedly connected to a connecting block (22), a side of the connecting block (22) away from the telescopic rod (6) is fixed to a support column (23), and the positioning plate (7) is fixed to the end of the support column (23).

7. A downhole imaging instrument according to claim 6, characterized in that: A conical thorn (24) is arranged on one side of the positioning plate (7) away from the pillar (23), and a plurality of the conical thorns (24) are arranged side by side.

8. A downhole imaging instrument according to claim 6, characterized in that: Assembly arms (8) are fixed on both side walls adjacent to the connection block (22) and the support column (23), and a pair of elastic support members (9) are respectively assembled on the pair of assembly arms (8).

9. A downhole imaging instrument according to claim 8, characterized in that: The elastic support member (9) comprises a sleeve (25) fixedly inserted into one end of the assembly arm (8) away from the connection block (22); a movable rod (26) is movably inserted into one end of the sleeve (25) away from the electric push rod (5); the auxiliary roller (10) is mounted on one end of the movable rod (26) extending out of the sleeve (25); a stopper (27) is arranged at one end of the movable rod (26) extending into the sleeve (25); and a spring (28) is arranged between the stopper (27) and the inner end wall of the sleeve (25).

10. A downhole imaging instrument according to claim 1, characterized in that: A display screen (29) is mounted on one side of the controller (3), grips (31) are disposed on both end surfaces of the controller (3), and control buttons (30) are disposed on both sides of the display screen (29) at positions close to the grips (31).

Images