A sonic logging device and method for eliminating source signal interference

Abstract

This invention discloses an acoustic logging device and method for eliminating interference from seismic sources, belonging to the field of acoustic logging technology. It includes a cover plate and a logging instrument. A silencing plate and a handle are fixedly connected to the upper side of the cover plate. The surface of the silencing plate is designed with a honeycomb pattern. An elastic pad and a connecting cylinder are fixedly connected to the lower side of the cover plate. A connecting seat is fixedly connected to the lower side of the connecting cylinder. The logging instrument is located below the cover plate. A connecting column is fixedly connected to the upper end of the logging instrument, and the connecting column is inserted into the connecting seat and threadedly connected to it. The cover plate and logging instrument are designed as separate units for easy transportation and carrying. They can be installed independently during use, and the installation process is simple and reliable. By setting the elastic pad and the silencing plate to work together, the controllability of seismic source signal interference elimination is achieved. It is suitable for various measurement environments, effectively reducing the interference of environmental noise on acoustic wave transmission and reception, and improving the measurement accuracy of acoustic logging.

Description

Technical Field

[0001] This invention belongs to the field of acoustic logging technology, specifically an acoustic logging device and method for eliminating interference from seismic source signals. Background Technology

[0002] Sonic logging is a geophysical logging technique. When sound waves pass through the formation, different types of rocks and fluids affect the propagation speed of the sound waves. Based on this measurement method, the physical properties of underground rocks can be obtained, thereby analyzing geological layers. It is widely used in fields such as oil and gas exploration and groundwater resource assessment.

[0003] Chinese patent application CN209818057U discloses a sonic logging tool. The key technical points of its solution are: it includes a sonic outer shell and a sonic bladder. The sonic outer shell has a through-hole, and the sonic bladder is disposed inside the sonic outer shell. The sonic logging tool also includes an elastic protective net located between the sonic bladder and the sonic outer shell, covering the sonic bladder. This technology, by covering the sonic bladder with an elastic protective net, allows the sonic bladder to expand synchronously with it during expansion. On the one hand, this protects the portion of the sonic bladder extending from the through-hole, preventing it from being scratched or torn by foreign objects. On the other hand, because the elastic protective net covers the entire sonic bladder, it can control the overall expansion of the sonic bladder, preventing excessive expansion of the portion of the sonic bladder directly opposite the through-hole. Furthermore, the elastic protective net has mesh openings, which do not affect the transmission and reception of sonic waves.

[0004] However, the above-mentioned technology has the following drawbacks: When the existing logging equipment is used, it is set inside the pre-dug logging well. Various external noises can easily interfere with the source signal. For example, human activities, insect and bird calls, water flow, wind and rain will all generate certain noises, which will affect the transmission and reception of sound waves, thereby reducing the measurement accuracy of sound wave logging. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides an acoustic logging device and method for eliminating interference from seismic source signals, thereby solving the technical problems mentioned in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The acoustic logging device for eliminating interference from seismic source signals of the present invention includes a cover plate and a logging instrument. The logging instrument includes a signal transmitting module, a signal receiving module, and a data processing module. A sound-absorbing plate and a handle are fixedly connected to the upper side of the cover plate. The surface of the sound-absorbing plate is designed as a honeycomb. An elastic pad and a connecting cylinder are fixedly connected to the lower side of the cover plate. A connecting seat is fixedly connected to the lower side of the connecting cylinder. The logging instrument is disposed below the cover plate. A connecting column is fixedly connected to the upper end of the logging instrument, and the connecting column is inserted into the connecting seat and threadedly connected thereto.

[0007] Preferably, the connecting cylinder has a movable wheel inside; a set of protrusions are evenly distributed on the side of the movable wheel; an adjusting rod is fixedly connected to the upper side of the movable wheel, and the adjusting rod passes through the cover plate and is threadedly connected to it; a handwheel is fixedly connected to the upper end of the adjusting rod; a set of outward rods are evenly distributed on the side of the connecting cylinder, and the outward rods pass through the side wall of the connecting cylinder and are slidably connected to it; an arc-shaped block is fixedly connected to one end of the outward rod near the movable wheel; a bonding plate is fixedly connected to the other end of the outward rod; a spring is fixedly connected between the bonding plate and the connecting cylinder.

[0008] Preferably, the end of the bonding plate away from the extension rod has a set of protrusions evenly distributed.

[0009] Preferably, the elastic pad is hollow inside; an elastic air storage block is fixedly connected inside the connecting cylinder below the movable wheel; the elastic pad and the air storage block are interconnected by an air pipe.

[0010] Preferably, a volatile container is fixedly connected to the upper side of the cover plate; an irritating and volatile substance is added inside the volatile container; and a set of openings are evenly distributed on the upper side of the volatile container.

[0011] Preferably, a control ring is fixedly connected inside the opening; a pressure plate is provided on the upper side of the control ring; a sealing sleeve is fixedly connected inside the control ring; a push rod is slidably and sealingly connected inside the sealing sleeve; an elastic element is provided between the push rod and the sealing sleeve; and the sealing sleeve and the gas storage block are interconnected through a second gas pipe.

[0012] Preferably, a heat exchange tube is provided at the bottom of the evaporation box; an elastic heat dissipation sleeve is provided on the outside of the logging instrument; the heat dissipation sleeve and the heat exchange tube are interconnected by a conduit; and coolant is stored inside the heat dissipation sleeve, the conduit, and the heat exchange tube.

[0013] Preferably, the heat exchange tube is designed to be corrugated.

[0014] A sonic logging method for eliminating seismic source signal interference, the method employing the aforementioned sonic logging device for eliminating seismic source signal interference, includes the following steps:

[0015] S1: Screw the connecting pin of the logging tool into the connecting seat of the cover plate to install the logging tool and the cover plate. Then place the cover plate at the wellhead and put the logging tool into the well.

[0016] S2: By turning the adjustment rod with the handwheel, the movable wheel is driven to rotate inside the connecting cylinder and move downward. The protrusion squeezes the arc-shaped block, pushing multiple extension rods outward, so that the bonding plate is pressed tightly against the well wall surface.

[0017] S3: The moving wheel squeezes the air storage block, forcing the gas inside the air storage block into the elastic pad through the air pipe, causing the elastic pad to inflate and seal the gap between the elastic pad and the ground.

[0018] S4: Start the logging instrument to perform acoustic logging;

[0019] S5: Irritating substances inside the evaporation box evaporate outward through the opening and diffuse into the surrounding environment, repelling nearby animals and preventing animal activity from interfering with or damaging the sonic logging work.

[0020] S6: The coolant inside the heat sink absorbs the heat generated by the logging tool, cooling down the electrical components inside the logging tool. The coolant also conducts heat through the heat exchange tube to the irritating substances inside the volatilization box, reducing the temperature of the coolant and accelerating the volatilization rate of the irritating substances.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. This invention designs the cover plate and logging instrument as separate units, which are convenient for transportation and carrying. They can be installed by the user during use, and the installation process is simple and reliable. By setting up elastic pads and sound-absorbing plates in cooperation, the controllability of vibration source signal interference elimination is achieved. It is suitable for various measurement environments, effectively reduces the interference of environmental noise on sound wave transmission and reception, and improves the measurement accuracy of sound wave logging.

[0023] 2. After the cover plate and logging instrument are placed in place, the adjustment rod is turned by handwheel, which drives the movable wheel to rotate inside the connecting cylinder and move downward. Then, the protrusions on the surface of the movable wheel squeeze the arc-shaped block, pushing multiple extension rods outward at the same time, so that the bonding plate is pressed tightly against the well wall surface, thereby fixing the device to the measuring well and keeping the logging instrument centered, thus improving the effectiveness of the device. Attached Figure Description

[0024] Figure 1 It is a perspective view of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the connecting tube in this invention;

[0026] Figure 3 This is a schematic diagram of the structure of the evaporation box and the heat sink in this invention;

[0027] Figure 4 This is a cross-sectional view of the present invention;

[0028] Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle;

[0029] Figure 6 yes Figure 5 Enlarged view of a section at point B in the middle;

[0030] Figure 7 This is a schematic diagram of the method flow of the present invention.

[0031] In the diagram: 1. Cover plate; 2. Logging instrument; 3. Silencer plate; 4. Elastic pad; 5. Connecting sleeve; 6. Connecting seat; 7. Connecting column; 8. Sliding wheel; 9. Protrusion; 10. Adjusting rod; 11. Handwheel; 12. Extending rod; 13. Arc block; 14. Adhesive plate; 15. Spring; 16. Spike; 17. Gas storage block; 18. Gas pipe one; 19. Evaporation box; 20. Opening; 21. Control ring; 22. Pressure plate; 23. Sealing sleeve; 24. Push rod; 25. Gas pipe two; 26. Heat exchange pipe; 27. Heat dissipation sleeve; 28. Conduit. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] like Figures 1 to 6 As shown, the acoustic logging device for eliminating interference from seismic source signals of the present invention includes a cover plate 1 and a logging instrument 2;

[0034] A sound-absorbing plate 3 and a handle are fixedly connected to the upper side of the cover plate 1; the sound-absorbing plate 3 is made of sound-absorbing materials, such as sound insulation cotton, polyester fiber sound-absorbing board, sound insulation felt, polyurethane foam, etc.; the surface of the sound-absorbing plate 3 is designed as a honeycomb pattern; an elastic pad 4 and a connecting cylinder 5 are fixedly connected to the lower side of the cover plate 1; the elastic pad 4 can be made of rubber, silicone, etc.; a connecting seat 6 is fixedly connected to the lower side of the connecting cylinder 5.

[0035] The logging instrument 2 is located below the cover plate 1; a connecting column 7 is fixedly connected to the upper end of the logging instrument 2, and the connecting column 7 is inserted into the connecting seat 6 and threadedly connected thereto; the logging instrument 2 includes a signal transmitting module, a signal receiving module and a data processing module; the signal transmitting module is a sound wave transmitter, which serves as a vibration source; the signal receiving module is a sound wave receiver; the logging instrument 2 is existing technology and will not be described in detail here.

[0036] In the existing technology, the logging instrument 2 is set inside the pre-dug measuring well. Various external noises can easily interfere with the source signal. For example, human activities, insect and bird calls, water flow, wind and rain can all generate certain noises, which will affect the transmission and reception of sound waves, thereby reducing the measurement accuracy of sound wave logging.

[0037] In this invention, the connecting pin 7 of the logging instrument 2 is first screwed into the connecting seat 6 of the cover plate 1 to fix the logging instrument 2 and the cover plate 1. Then, the relevant lines are connected, the cover plate 1 is placed at the wellhead, and the logging instrument 2 is placed into the well. At this time, the cover plate 1 presses the elastic pad 4 tightly against the ground to achieve isolation between the inside and outside of the well, reducing the impact of the outside world on the equipment inside the well. By setting a sound-absorbing plate, the noise generated by the surrounding environment is absorbed and weakened. Furthermore, the sound-absorbing plate is designed in a honeycomb shape, which can further improve its sound insulation effect and prevent noise from penetrating into the well and interfering with the vibration source signal.

[0038] This invention designs the cover plate 1 and the logging instrument 2 as separate units, which is convenient for transportation and carrying. They can be installed by the user during use, and the installation process is simple and reliable. By setting the elastic pad 4 and the sound-absorbing plate to work together, the controllability of the source signal interference elimination is achieved. It is suitable for various measurement environments, effectively reduces the interference of environmental noise on the sound wave transmission and reception, and improves the measurement accuracy of sound wave logging.

[0039] In a preferred embodiment of the present invention, a movable wheel 8 is provided inside the connecting cylinder 5; a set of protrusions 9 are evenly distributed on the side of the movable wheel 8; an adjusting rod 10 is fixedly connected to the upper side of the movable wheel 8, and the adjusting rod 10 passes through the cover plate 1 and is threadedly connected to it; a handwheel 11 is fixedly connected to the upper end of the adjusting rod 10; a set of outward extension rods 12 are evenly distributed on the side of the connecting cylinder 5, and the outward extension rods 12 pass through the side wall of the connecting cylinder 5 and are slidably connected to it; an arc-shaped block 13 is fixedly connected to one end of the outward extension rod 12 near the movable wheel 8; a bonding plate 14 is fixedly connected to the other end of the outward extension rod 12; a spring 15 is fixedly connected between the bonding plate 14 and the connecting cylinder 5. After placing the cover plate 1 and the logging instrument 2 in place, turn the adjusting rod 10 by turning the handwheel 11, which will drive the movable wheel 8 to rotate inside the connecting cylinder 5 and move downward. Then, the protrusions 9 on the surface of the movable wheel 8 will press the arc-shaped block 13, pushing multiple extension rods 12 outward at the same time, so that the bonding plate 14 is pressed against the well wall surface, thus fixing the device to the measuring well and keeping the logging instrument 2 in the center, improving the effectiveness of the device. When disassembly is required, turn the handwheel 11 in the opposite direction and use the spring 15 to retract the extension rods 12 and the bonding plate 14.

[0040] The end of the bonding plate 14 away from the outward extension rod 12 is evenly distributed with a set of protruding spikes 16. By setting the protruding spikes 16, when the bonding plate 14 moves outward, the protruding spikes 16 can be driven into the rock and soil inside the well wall, preventing the bonding plate 14 from slipping between itself and the well wall, and improving the fixation between the device and the measuring well.

[0041] In a preferred embodiment of the present invention, the elastic pad 4 is hollow inside; an elastic gas storage block 17 is fixedly connected inside the connecting cylinder 5 below the movable wheel 8; the elastic pad 4 and the gas storage block 17 are interconnected via an air pipe 18. As the movable wheel 8 rotates and moves downward inside the connecting cylinder 5, it simultaneously compresses the gas storage block 17, forcing the gas inside the gas storage block 17 into the elastic pad 4 through the air pipe 18. This causes the elastic pad 4 to inflate and expand, sealing the gap between the elastic pad 4 and the ground. This improves the sound insulation of the device, reducing interference from the external environment to the well. Furthermore, it prevents rainwater from entering the well through the gap between the elastic pad 4 and the ground during rain, extending the service life of the logging instrument 2 and reducing the impact of accumulated water on logging operations.

[0042] In a preferred embodiment of the present invention, a volatile substance 19 is fixedly connected to the upper side of the cover plate 1; the volatile substance 19 contains an irritating and volatile substance, such as camphor, peppermint oil, or eucalyptus oil; and a set of openings 20 are evenly distributed on the upper side of the volatile substance 19. By adding an irritating and volatile substance inside the volatile substance 19, during acoustic logging, the irritating substance evaporates outward through the openings 20 and diffuses into the surrounding environment, thereby repelling nearby insects, birds, and other living creatures, further preventing their calls and trampling sounds from interfering with the transmission and reception of sound waves, and also preventing some larger animals from damaging the device.

[0043] A control ring 21 is fixedly connected inside the opening 20; a pressure plate 22 is provided on the upper side of the control ring 21; a sealing sleeve 23 is fixedly connected inside the control ring 21; a push rod 24 is slidably and sealingly connected inside the sealing sleeve 23; an elastic element is provided between the push rod 24 and the sealing sleeve 23; the sealing sleeve 23 and the gas storage block 17 are interconnected through the second gas pipe 25. When not in use, the opening 20 is normally closed to prevent the substances inside the evaporation box 19 from evaporating and leaking out, thus improving its utilization and reducing losses. During installation and use, the gas storage block 17 is squeezed by the movable wheel 8, and the gas inside the gas storage block 17 enters the sealing sleeve 23 synchronously through the second gas pipe 25, pushing the push rod 24 upward, causing a gap to be created between the pressure plate 22 and the control ring 21. At this time, the opening 20 is in the open state, and the irritating substances inside the evaporation box 19 can easily evaporate and escape through the opening 20.

[0044] In a preferred embodiment of the present invention, a heat exchange tube 26 is provided at the bottom of the volatilization box 19; an elastic heat dissipation sleeve 27 is provided on the outside of the logging instrument 2; the heat dissipation sleeve 27 and the heat exchange tube 26 are interconnected by a conduit 28; and coolant is stored inside the heat dissipation sleeve 27, the conduit 28, and the heat exchange tube 26. During installation, the logging instrument 2 passes through and fits against the heat dissipation sleeve 27. During operation, the coolant inside the heat dissipation sleeve 27 absorbs the heat generated by the logging instrument 2, thereby cooling the electrical components inside the logging instrument 2 and improving its working efficiency. Furthermore, the coolant can conduct the absorbed heat to the irritating substances inside the volatilization box 19 through the heat exchange tube 26. On the one hand, this rapidly reduces the temperature of the coolant, improving its heat dissipation effect on the logging instrument 2; on the other hand, it accelerates the volatilization rate of the irritating substances, thereby improving the dissipation efficiency against surrounding organisms and further ensuring the smooth progress of logging operations.

[0045] The heat exchange tube 26 is designed in a corrugated shape to increase the contact area between the heat exchange tube 26 and the irritant, and to extend the heat exchange path, thereby further improving the heat dissipation efficiency of the logging tool 2 and the volatilization efficiency of the irritant.

[0046] like Figure 7 As shown, the present invention provides an acoustic logging method for eliminating seismic source signal interference. This method employs the aforementioned acoustic logging device for eliminating seismic source signal interference and includes the following steps:

[0047] S1: Screw the connecting pin 7 of the logging instrument 2 into the connecting seat 6 of the cover plate 1 to realize the installation between the logging instrument 2 and the cover plate 1. Then place the cover plate 1 at the wellhead and put the logging instrument 2 into the well.

[0048] S2: By rotating the adjusting rod 10 through the handwheel 11, the movable wheel 8 is driven to rotate inside the connecting cylinder 5 and move downward. The protrusion 9 is used to squeeze the arc block 13, pushing the multiple outward extension rods 12 outward, so that the bonding plate 14 is pressed against the well wall surface.

[0049] S3: The movable wheel 8 squeezes the air storage block 17, and squeezes the gas inside the air storage block 17 into the elastic pad 4 through the air pipe 18, causing the elastic pad 4 to inflate and seal the gap between the elastic pad 4 and the ground.

[0050] S4: Start logging instrument 2 to perform acoustic logging;

[0051] S5: Irritating substances inside the evaporation box 19 evaporate outward through the opening 20 and diffuse into the surrounding environment, repelling nearby animals and preventing animal activity from interfering with or damaging the sonic logging work.

[0052] S6: The coolant inside the heat sink 27 absorbs the heat generated by the logging instrument 2, cools down the electrical components inside the logging instrument 2, and the coolant conducts heat to the irritant inside the volatilization box 19 through the heat exchange pipe 26, thereby reducing the temperature of the coolant and accelerating the volatilization rate of the irritant.

[0053] Working principle: First, screw the connecting column 7 of the logging instrument 2 into the connecting seat 6 of the cover plate 1 to fix the logging instrument 2 and the cover plate 1. Then connect the relevant lines, place the cover plate 1 at the wellhead, and put the logging instrument 2 into the well. At this time, the cover plate 1 presses the elastic pad 4 tightly onto the ground to achieve isolation between the inside and outside of the well and reduce the impact of the outside on the equipment inside the well. By setting the sound-absorbing plate, the noise generated by the surrounding environment is absorbed and weakened. The sound-absorbing plate is designed in a honeycomb shape, which can further improve its sound insulation effect and prevent noise from penetrating into the well and interfering with the vibration source signal.

[0054] After placing the cover plate 1 and the logging instrument 2 in place, the adjusting rod 10 is rotated by the handwheel 11, which drives the movable wheel 8 to rotate and move downward inside the connecting cylinder 5. Then, the protrusions 9 on the surface of the movable wheel 8 press the arc-shaped block 13, pushing multiple extension rods 12 outward at the same time, so that the bonding plate 14 is pressed against the well wall surface, thus fixing the device to the logging well and keeping the logging instrument 2 in the center, improving the effectiveness of the device. During the rotation and downward movement of the movable wheel 8 inside the connecting cylinder 5, the gas storage block 17 is also pressed, and the gas inside the gas storage block 17 is squeezed into the elastic pad 4 through the gas pipe 18, causing the elastic pad 4 to inflate and seal the gap between the elastic pad 4 and the ground. On the one hand, this improves the sound insulation effect of the device and reduces the interference of the external environment to the inside of the logging well. On the other hand, it can prevent rainwater from entering the well in large quantities through the gap between the elastic pad 4 and the ground during rain, extending the service life of the logging instrument 2 and reducing the impact of water accumulation on logging work.

[0055] By adding an irritating and volatile substance inside the volatilization box 19, during sonic logging, the irritant substance volatilizes outward through the opening 20 and diffuses into the surrounding environment, thereby repelling nearby insects, birds, and other living creatures, further preventing their calls and trampling sounds from interfering with the transmission and reception of sound waves, and also preventing some larger animals from damaging the device. When the device is not in use, the opening 20 is normally closed to prevent the substance inside the volatilization box 19 from volatilizing and leaking outward, thereby improving its utilization and reducing losses. During installation and use, the gas storage block 17 is squeezed by the movable wheel 8, and the gas inside the gas storage block 17 enters the sealing sleeve 23 simultaneously through the gas pipe 25, pushing the push rod 24 upward, causing a gap to be created between the pressure plate 22 and the control ring 21. At this time, the opening 20 is in the open state, and the irritant substance inside the volatilization box 19 can volatilize and escape smoothly through the opening 20.

[0056] During installation, the logging instrument 2 is passed through and attached to the heat dissipation sleeve 27. During operation, the coolant inside the heat dissipation sleeve 27 absorbs the heat generated by the logging instrument 2, thereby cooling down the electrical components inside the logging instrument 2 and improving its working efficiency. The coolant can also conduct the absorbed heat to the irritating substances inside the evaporation box 19 through the heat exchange pipe 26. On the one hand, it can quickly reduce the temperature of the coolant to improve its heat dissipation effect on the logging instrument 2. On the other hand, it can accelerate the evaporation rate of the irritating substances, thereby improving the dissipation efficiency of surrounding living things and further ensuring the smooth progress of logging work.

[0057] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0058] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sonic logging device for eliminating interference from seismic sources, comprising a cover plate (1) and a logging instrument (2), wherein the logging instrument (2) internally includes a signal transmitting module, a signal receiving module, and a data processing module, characterized in that, A sound-absorbing plate (3) and a handle are fixedly connected to the upper side of the cover plate (1). The surface of the sound-absorbing plate (3) is designed as a honeycomb. An elastic pad (4) and a connecting cylinder (5) are fixedly connected to the lower side of the cover plate (1). A connecting seat (6) is fixedly connected to the lower side of the connecting cylinder (5). The logging instrument (2) is located below the cover plate (1). A connecting column (7) is fixedly connected to the upper end of the logging instrument (2). The connecting column (7) is inserted into the connecting seat (6) and threadedly connected to it. The connecting cylinder (5) is equipped with a movable wheel (8) inside. A set of protrusions (9) are evenly distributed on the side of the movable wheel (8). An adjusting rod (10) is fixedly connected to the upper side of the movable wheel (8). The adjusting rod (10) passes through the cover plate (1) and is threadedly connected to it. A handwheel (11) is fixedly connected to the upper end of the adjusting rod (10). A set of extension rods (12) are evenly distributed on the side of the connecting cylinder (5). The extension rods (12) pass through the side wall of the connecting cylinder (5) and are slidably connected to it. An arc-shaped block (13) is fixedly connected to one end of the extension rod (12) near the movable wheel (8). A bonding plate (14) is fixedly connected to the other end of the extension rod (12). A spring (15) is fixedly connected between the bonding plate (14) and the connecting cylinder (5). The elastic pad (4) is designed to be hollow inside. The connecting cylinder (5) is in a hollow state inside the movable wheel (8). An elastic gas storage block (17) is fixedly connected below the wheel (8). The elastic pad (4) and the gas storage block (17) are connected to each other through a first air pipe (18). A volatile box (19) is fixedly connected to the upper side of the cover plate (1). An irritating and volatile substance is added inside the volatile box (19). A set of openings (20) are evenly distributed on the upper side of the volatile box (19). A control ring (21) is fixedly connected inside the opening (20). A pressure plate (22) is provided on the upper side of the control ring (21). A sealing sleeve (23) is fixedly connected inside the control ring (21). A push rod (24) is slidably sealed inside the sealing sleeve (23). An elastic element is provided between the push rod (24) and the sealing sleeve (23). The sealing sleeve (23) and the gas storage block (17) are connected to each other through a second air pipe (25).

2. The acoustic logging device for eliminating seismic source signal interference according to claim 1, characterized in that, The end of the bonding plate (14) away from the extension rod (12) is evenly distributed with a set of protrusions (16).

3. The acoustic logging device for eliminating seismic source signal interference according to claim 1, characterized in that, The bottom of the evaporation box (19) is provided with a heat exchange tube (26), and the outside of the logging instrument (2) is provided with an elastic heat dissipation sleeve (27). The heat dissipation sleeve (27) and the heat exchange tube (26) are connected to each other through a conduit (28). Coolant is stored inside the heat dissipation sleeve (27), the conduit (28) and the heat exchange tube (26).

4. The acoustic logging device for eliminating seismic source signal interference according to claim 3, characterized in that, The heat exchange tube (26) is designed to be corrugated.

5. A method for eliminating seismic source signal interference using acoustic logging, employing the acoustic logging device for eliminating seismic source signal interference as described in any one of claims 1-4, characterized in that, Includes the following steps: S1: Screw the connecting pin (7) of the logging instrument (2) into the connecting seat (6) of the cover plate (1) to realize the installation between the logging instrument (2) and the cover plate (1). Then place the cover plate (1) at the wellhead and put the logging instrument (2) into the well. S2: By rotating the adjusting rod (10) through the handwheel (11), the movable wheel (8) is driven to rotate inside the connecting cylinder (5) and move downward. The protrusion (9) is used to squeeze the arc block (13) and push out multiple extension rods (12) so that the bonding plate (14) is pressed against the surface of the well wall. S3: The movable wheel (8) squeezes the air storage block (17), and squeezes the gas inside the air storage block (17) into the elastic pad (4) through the air pipe (18), causing the elastic pad (4) to inflate and seal the gap between the elastic pad (4) and the ground. S4: Start the logging instrument (2) to perform acoustic logging; S5: Irritating substances inside the evaporation box (19) evaporate outward through the opening (20) and diffuse into the surrounding environment, driving away nearby animals and preventing animal activities from interfering with or damaging the equipment during acoustic logging. S6: The coolant inside the heat sink (27) absorbs the heat generated by the logging instrument (2) to cool down the electrical components inside the logging instrument (2). The coolant also conducts heat through the heat exchange tube (26) to the irritant inside the volatilization box (19), thereby reducing the temperature of the coolant and accelerating the volatilization rate of the irritant.

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