A borehole probe and borehole television apparatus
By integrating a water storage chamber, spray system, cleaning brush, and internal water channel design into the drilling probe, the problem of downhole contamination of the drilling probe is solved, achieving rapid cleaning and efficient logging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENHUA GUONENG ENERGY GRP
- Filing Date
- 2025-09-09
- Publication Date
- 2026-07-14
AI Technical Summary
Existing drilling probes are easily contaminated by pollutants such as silt and rock cuttings during logging, which leads to a decline in imaging quality, affects the operation results, and requires frequent interruptions for cleaning.
Design a drilling probe with a water storage chamber and a spray system. Integrate a first water pump and nozzles to achieve downhole self-cleaning function. Combine a motor-driven cleaning brush and multiple nozzles to clean the camera and the inner wall of the well. Equipped with a downhole water replenishment system and internal water circuit design to ensure cleaning ability and device stability.
It enables rapid restoration of camera clarity downhole, reduces downtime, improves logging efficiency and imaging quality, and enhances the reliability and adaptability of the device.
Smart Images
Figure CN224496413U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling detection equipment technology, and in particular to a drilling probe and a drilling television device. Background Technology
[0002] In geological exploration, mineral resource exploration, hydrogeological work, and engineering geological assessment, accurately obtaining information about underground geological conditions is crucial. One traditional exploration method is core drilling, which involves extracting cylindrical rock samples (i.e., "cores") from a well using a drilling rig. Analysis of these cores reveals information about underground lithology, structure, and fractures. However, core drilling has several inherent drawbacks: firstly, it is labor-intensive and costly; secondly, the core recovery rate, especially in weak, fractured, or loose strata, is often far below 100%, resulting in incomplete geological information and potentially leading to misjudgments of the geological conditions.
[0003] To compensate for the shortcomings of core drilling methods, drilling television technology has been widely adopted. A conventional drilling television system typically includes a drilling probe equipped with a camera, cables for signal delivery and transmission, a winch, wellhead support equipment, and a surface control and display unit. During operation, the drilling probe is lowered into the well, and the camera scans and images the wellbore, allowing for direct and continuous acquisition of detailed information such as lithological characteristics, degree of dissolution, fracture development, and structural morphology, greatly improving the accuracy and completeness of geological information acquisition.
[0004] However, existing drilling probes still face a prominent problem in practical applications. During logging, when the probe passes through geologically complex formations, such as weak interlayers containing water or mud, or fault zones, the camera lens is easily contaminated by silt, rock cuttings, and other pollutants, resulting in blurry images or even complete loss of image quality. In such cases, operators must interrupt logging operations, lifting the entire probe from tens or even hundreds of meters deep into the well to the surface for manual cleaning, before lowering it back to its original position to continue measurements. This repeated lifting and lowering not only wastes time but also severely impacts the effectiveness of logging work. Utility Model Content
[0005] The purpose of this invention is to provide a drilling probe that can achieve self-cleaning downhole, aiming to solve the technical problem that the camera lens of existing drilling probes is easily contaminated by pollutants such as silt and rock cuttings in the well, resulting in a decrease in image quality and thus affecting the operation effect.
[0006] To achieve the above objectives, the first aspect of this utility model provides a drilling probe, comprising:
[0007] The main body has a water storage cavity for storing cleaning water;
[0008] A camera, wherein the camera is disposed at the bottom of the main body;
[0009] A first water pump is mounted on the main body, and its inlet is connected to the water storage chamber.
[0010] The first nozzle is located at the bottom of the main body and is connected to the outlet of the first water pump, for spraying water from the water storage chamber toward the camera.
[0011] Furthermore, the drilling probe also includes a cleaning assembly, which includes a motor and a cleaning brush. The motor is mounted on the bottom of the main body, and the power output end of the motor is connected to the cleaning brush to drive the cleaning brush to rotate and clean the camera.
[0012] Furthermore, the drilling probe also includes:
[0013] The second water pump is installed on the main body, and its inlet is connected to the water storage chamber.
[0014] The second nozzle is disposed on the outer peripheral wall of the main body and connected to the outlet of the second water pump, and is used to flush the inner wall of the well.
[0015] Furthermore, it includes at least two second nozzles, which are arranged symmetrically at intervals on the outer peripheral wall of the body.
[0016] Furthermore, the drilling probe also includes:
[0017] A third water pump is installed on the main body, and its outlet is connected to the water storage chamber.
[0018] A water inlet is provided on the main body and is connected to the water inlet of the third water pump for replenishing water from the well into the water storage chamber.
[0019] Furthermore, a filter is provided at the water inlet.
[0020] Furthermore, the first water pump is connected to the first nozzle via a first connecting pipe, and the second water pump is connected to the second nozzle via a second connecting pipe. Both the first connecting pipe and the second connecting pipe are located inside the main body.
[0021] Furthermore, the first water pump and the second water pump are symmetrically arranged on the top of the main body.
[0022] Furthermore, the bottom of the main body is provided with multiple lights, which are arranged around the camera.
[0023] The second aspect of this utility model provides a drilling television device, including the drilling probe, wellhead support frame, winch, control component and cable. The cable is wound around the winch, one end of the cable is connected to the control component, and the other end of the cable is connected to the drilling probe after passing through the wellhead support frame. The control component is electrically connected to the camera, the first water pump, the motor, the second water pump, the third water pump and the lighting lamp.
[0024] Compared with the prior art, the drilling probe and drilling television device of this utility model have the following advantages:
[0025] By setting a water storage chamber on the main body to store cleaning water and integrating a spray system consisting of a first water pump and a first nozzle, the drilling probe has the ability to self-clean downhole. When the camera is contaminated by silt or rock cuttings during logging, causing the image to become blurry, the operator does not need to lift the entire drilling probe from the deep well to the surface for manual cleaning as in existing technologies. Instead, the operator can simply start the first water pump remotely from the surface to use the stored clean water to rinse the camera and quickly restore its clarity. This solves the problem of having to interrupt operations and clean the camera due to lens contamination, reduces unnecessary operations, and improves logging efficiency. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of the drilling probe according to an embodiment of the present invention;
[0027] Figure 2 This is a bottom view of the drilling probe according to an embodiment of the present invention;
[0028] Figure 3 This is a schematic diagram of the overall structure of the drilling television device according to an embodiment of the present invention;
[0029] In the diagram, 1. Main body; 101. Water storage chamber; 2. Camera; 3. First water pump; 4. First nozzle; 5. Cleaning assembly; 6. Motor; 7. Cleaning brush; 8. Second water pump; 9. Second nozzle; 10. Third water pump; 11. Water inlet; 12. Filter; 13. First connecting pipe; 14. Second connecting pipe; 15. Lighting lamp; 16. Wellhead support frame; 17. Winch; 18. Control assembly; 19. Cable. Detailed Implementation
[0030] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0031] In this description of the utility model, the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "lateral," and "longitudinal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the utility model and for simplifying the description, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0032] In this description of the utility model, the terms "provided with," "set up," "connected," and "placed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0034] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.
[0035] like Figure 1-3 As shown, a first aspect of the present invention provides a drilling probe, comprising:
[0036] Main body 1, the main body 1 has a water storage chamber 101, the water storage chamber 101 is used to store cleaning water;
[0037] Camera 2 is located at the bottom of the main body 1;
[0038] The first water pump 3 is installed on the main body 1, and its inlet is connected to the water storage chamber 101.
[0039] The first nozzle 4 is located at the bottom of the main body 1 and is connected to the outlet of the first water pump 3. It is used to spray water in the water storage chamber 101 toward the camera 2.
[0040] Based on the above technical solution, by setting a water storage chamber 101 on the main body 1 to store cleaning water, and integrating a spraying system consisting of a first water pump 3 and a first nozzle 4, the first water pump 3 draws water from the water storage chamber 101 and sprays it directly onto the camera 2 set at the bottom of the main body 1 through the first nozzle 4, enabling the drilling probe to have the ability to self-clean downhole. When the camera 2 is contaminated by silt or rock cuttings during the logging process, causing the image to become blurry, the operator does not need to lift the entire drilling probe from the deep well to the ground for manual cleaning as in the existing technology. Instead, the operator can simply start the first water pump 3 remotely from the ground to use the stored clean water to rinse the camera 2 and quickly restore its clarity. This solves the problem of having to interrupt operations and clean the lens due to contamination, reduces unnecessary operations, and thus improves logging efficiency.
[0041] Preferably, the drilling probe further includes a cleaning component 5, which includes a motor 6 and a cleaning brush 7. The motor 6 is installed at the bottom of the main body 1, and the power output end of the motor 6 is connected to the cleaning brush 7 to drive the cleaning brush 7 to rotate and clean the camera 2.
[0042] By adding a cleaning brush 7 driven by a motor 6, this invention introduces a mechanical wiping cleaning method on top of water spraying. For sticky sludge or solidified mud that is difficult to wash away by water alone, the rotating cleaning brush 7 can apply direct physical force to effectively peel and sweep it off the lens surface of the camera 2. This combination of water rinsing and brush washing improves the cleaning effect, ensuring that the camera 2 can be restored to a high-definition state even in complex polluted environments. The cleaning capability is more comprehensive, and the water consumption in the water storage chamber 101 is reduced.
[0043] Preferably, the drilling probe further includes:
[0044] The second water pump 8 is installed on the main body 1, and its inlet is connected to the water storage chamber 101.
[0045] The second nozzle 9 is located on the outer peripheral wall of the main body 1 and is connected to the outlet of the second water pump 8 for flushing the inner wall of the well.
[0046] More preferably, the drilling probe includes at least two second nozzles 9, which are arranged symmetrically at intervals on the outer peripheral wall of the main body 1.
[0047] Specifically, the actual operation process is as follows: During the lowering process, the camera 2 detects obstacles located below the main body 1; the lowering is stopped, and the main body 1 is in a relatively static state; the second water pump 8 is started, and the second nozzle 9 is operated to clear the obstacles; at this time, the main body 1 may sway slightly under the impact of the high-pressure water flow; the spraying is stopped; wait until the main body 1 stabilizes again under the action of gravity and cable tension, and at the same time allow the washed-down obstacles to settle; then the normal lowering and imaging work is resumed.
[0048] During the drilling process, especially in geologically fractured or unstable strata, the drilling probe often encounters loose rock blocks, collapsed well walls, or protrusions that may scratch the camera 2. By driving the second nozzle 9 with the second water pump 8 to spray high-pressure water onto the well wall, these potential obstacles can be effectively washed away or broken before the main body 1 reaches the position. This non-contact obstacle removal method reduces the risk of the drilling probe getting stuck or its outer shell and camera 2 being physically damaged, thus ensuring a safer and smoother logging process.
[0049] Typically, the inner surface of a well is covered by a layer of mud or loose rock cuttings, which obscures the true rock features beneath. Before camera 2 scans the well wall, the operator can activate the second nozzle 9, and the high-pressure water jet will sweep the area to be imaged, peeling away the obscuring covering layer and exposing the rock surface. This allows camera 2 to capture clearer, more accurate images, which helps to make more precise and reliable geological interpretations.
[0050] Preferably, the drilling probe further includes:
[0051] The third water pump 10 is installed on the main body 1, and its outlet is connected to the water storage chamber 101.
[0052] Water inlet 11 is installed on the main body 1 and is connected to the water inlet of the third water pump 10. It is used to replenish water from the well to the water storage chamber 101.
[0053] More preferably, a filter 12 is provided at the water inlet 11.
[0054] During long-term logging operations, the clean water used for cleaning camera 2 (via first water pump 3) and removing obstacles from the borehole wall (via second water pump 8) is continuously consumed. Without this water replenishment system, once the water in the water storage chamber 101 is depleted, the drilling probe must be raised to the surface for refilling, which would also lead to operational interruptions and reduced efficiency. By adding a third water pump 10, a water inlet 11, and a filter 12, when the water storage is insufficient, the drilling probe can directly utilize the existing water in the borehole. The water entering the water storage chamber 101 is filtered by the filter 12 and then pumped into the water storage chamber 101. This reduces the risk of the small-diameter components such as the first nozzle 4 and the second nozzle 9 being clogged by mud and sand, ensuring the long-term stability and effectiveness of the two core functions of cleaning camera 2 and removing obstacles. This allows the drilling probe to achieve long-term, uninterrupted continuous operation, improving its endurance.
[0055] More preferably, the first water pump 3 is connected to the first nozzle 4 through the first connecting pipe 13, and the second water pump 8 is connected to the second nozzle 9 through the second connecting pipe 14. Both the first connecting pipe 13 and the second connecting pipe 14 are located inside the main body 1.
[0056] The downhole environment is complex, and the drilling probe inevitably rubs and collides with the well wall during lowering and raising. If the pipelines are external, they are easily scratched, squeezed, or impacted, leading to deformation, cracking, and leakage or even complete failure of the entire pipeline system. By internally mounting the pipelines, the outer surface of the main body 1 remains smooth and intact, providing stronger impact and wear resistance, reducing the risk of physical damage to the water pipelines from the external drilling environment, and improving the structural robustness and operational reliability of the entire device under harsh conditions.
[0057] More preferably, the first water pump 3 and the second water pump 8 are symmetrically arranged on the top of the main body 1.
[0058] By symmetrically arranging the first water pump 3 and the second water pump 8 on top of the main body 1, their weight is evenly distributed on the horizontal plane, ensuring that the center of gravity of the main body 1 falls precisely on its vertical central axis. This balanced center of gravity effectively prevents unnecessary tilting, swaying, or rotation of the drilling probe during lowering or stationary measurement as the main body 1 passes through the well. Maintaining the verticality and stability of the main body 1, the symmetrical layout directly improves the accuracy and reliability of the measurement data, enabling the camera 2 to accurately align with and scan the inner wall of the well.
[0059] Preferably, the bottom of the main body 1 is also provided with a plurality of lighting lamps 15, which are arranged around the camera 2.
[0060] Multiple lights 15 are arranged in a ring around the camera 2 to achieve uniform lighting. If only a single point light source is used, it is easy to create shadows on the uneven surface of the well wall. These shadows will obscure important geological details. Ring lighting can illuminate the target from multiple angles, weakening or even eliminating shadows, so that every detail of the well wall can be clearly illuminated and captured. Ring uniform lighting can make the light intensity distribution within the field of view of the camera 2 more balanced, avoiding the problem of some areas of the image being too bright and losing details, while other areas are too dark and cannot be seen clearly.
[0061] The second aspect of this utility model provides a drilling television device, including a drilling probe, a wellhead support frame 16, a winch 17, a control component 18, and a cable 19. The cable 19 is wound around the winch 17, one end of the cable 19 is connected to the control component 18, and the other end of the cable 19 is connected to the drilling probe after passing through the wellhead support frame 16. The control component 18 is electrically connected to a camera 2, a first water pump 3, a motor 6, a second water pump 8, a third water pump 10, and a lighting lamp 15.
[0062] In summary, the drilling probe and drilling television device provided in this embodiment of the present invention have the following characteristics:
[0063] 1. Improved operational continuity and efficiency: This invention integrates the self-cleaning system of camera 2, the wellbore wall obstacle removal system, and the downhole water replenishment system into the main body 1, solving the problems in existing technologies where operations must be interrupted and the drilling probe raised to the surface due to camera 2 contamination, encountering wellbore wall obstacles, or depletion of cleaning water. By reducing or eliminating well lifting operations, the time for non-measuring auxiliary operations is shortened, thereby improving the overall operational efficiency of drilling television logging.
[0064] 2. Enhanced reliability and environmental adaptability of the drilling probe: All water connection pipelines are housed within the main body 1, protecting the pipeline system from damage caused by friction and collisions in the complex downhole environment, thus improving structural integrity and durability. The symmetrical layout of components such as the water pump ensures the drilling probe's center of gravity remains on its central axis, facilitating stable vertical positioning downhole. The filter 12 at the water inlet 11 filters the makeup water, reducing the risk of internal pipelines and nozzles being clogged with sediment, and improving the reliability of the device in actual operation.
[0065] 3. Improves image quality: The second nozzle 9 arranged on the outer periphery of the main body 1 pre-cleans the inner wall of the well, which can remove mud or debris that obstructs the rock surface, and helps to collect images that reflect the true geological conditions; the multiple lights 15 arranged around the camera 2 can provide more uniform lighting for the camera, which helps to suppress shadows and avoid local overexposure or underexposure, thereby improving the clarity of the image.
[0066] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A borehole probe, characterized by, include: The main body (1) has a water storage cavity (101) for storing cleaning water; Camera (2), the camera (2) is disposed at the bottom of the main body (1); The first water pump (3) is mounted on the main body (1), and its inlet is connected to the water storage chamber (101); The first nozzle (4) is located at the bottom of the main body (1) and is connected to the outlet of the first water pump (3) to spray water in the water storage chamber (101) toward the camera (2). It also includes a cleaning component (5), which includes a motor (6) and a cleaning brush (7). The motor (6) is installed at the bottom of the main body (1), and the power output end of the motor (6) is connected to the cleaning brush (7) to drive the cleaning brush (7) to rotate in order to clean the camera (2).
2. The borehole probe of claim 1, wherein, Also includes: The second water pump (8) is installed on the main body (1), and its inlet is connected to the water storage chamber (101); The second nozzle (9) is disposed on the outer peripheral wall of the main body (1) and connected to the outlet of the second water pump (8) for flushing the inner wall of the well.
3. The borehole probe of claim 2, wherein, It includes at least two second nozzles (9), which are arranged symmetrically at intervals on the outer peripheral wall of the body (1).
4. The borehole probe of any one of claims 1-2, wherein, Also includes: The third water pump (10) is installed on the main body (1), and its outlet is connected to the water storage chamber (101); Water inlet (11) is provided on the main body (1) and is connected to the water inlet of the third water pump (10) for replenishing water from the well to the water storage chamber (101).
5. The drilling probe according to claim 4, characterized in that, A filter (12) is provided at the water inlet (11).
6. The drilling probe according to claim 2, characterized in that, The first water pump (3) is connected to the first nozzle (4) through the first connecting pipe (13), and the second water pump (8) is connected to the second nozzle (9) through the second connecting pipe (14). The first connecting pipe (13) and the second connecting pipe (14) are both located inside the main body (1).
7. The drilling probe according to claim 6, characterized in that, The first water pump (3) and the second water pump (8) are symmetrically arranged on the top of the main body (1).
8. The drilling probe according to any one of claims 1 to 7, characterized in that, The bottom of the main body (1) is also provided with a plurality of lighting lamps (15), which are arranged around the camera (2).
9. A drilling television device, characterized in that, The device includes a drilling probe, a wellhead support frame (16), a winch (17), a control component (18), and a cable (19) as described in any one of claims 1 to 8. The cable (19) is wound around the winch (17). One end of the cable (19) is connected to the control component (18), and the other end of the cable (19) is connected to the drilling probe after passing through the wellhead support frame (16). The control component (18) is electrically connected to the camera (2), the first water pump (3), the motor (6), the second water pump (8), the third water pump (10), and the lighting lamp (15).