Intelligent magnetic detection device for oil exploration

Abstract

The application discloses an intelligent magnetic detection device for oil exploration, and relates to the technical field of oil exploration, which comprises supporting legs, a detection track fixed on the top of the supporting legs and used for guiding during detection, a driving mechanism arranged on the top of the detection track and used for controlling the detection position within the exploration range to effectively explore, and a detection mechanism arranged on one side of the driving mechanism and used for detecting oil and gas reservoirs and improving the detection accuracy. The detection track is provided with a vortex structure, so that the staff does not need to continuously adjust the position of the device for detection during the exploration, and the detection mechanism is arranged to keep the magnetic detection head vertical and downward during detection, so as to guarantee the measurement accuracy.

Description

Technical Field

[0001] This invention relates to the field of petroleum exploration technology, specifically to an intelligent magnetic detection device for petroleum exploration. Background Technology

[0002] Petroleum exploration refers to the process of finding and identifying oil and gas resources by utilizing various exploration methods to understand underground geological conditions, recognize conditions related to oil generation, storage, migration, accumulation, and preservation, comprehensively evaluate oil and gas prospects, identify favorable areas for oil and gas accumulation, locate oil and gas traps, determine the area of ​​oil and gas fields, and clarify the characteristics and production capacity of oil and gas layers. Currently, magnetic exploration is a relatively common method in petroleum exploration. When using intelligent magnetic detection equipment, the equipment utilizes the interaction between the Earth's magnetic field and the magnetization of underground rocks to obtain underground information. The Earth's magnetic field is a naturally occurring physical field whose intensity and direction vary in different locations. The magnetic differences in underground rocks affect the distribution of local magnetic fields; this difference is called magnetic anomaly. Oil and natural gas are usually stored in specific geological structures, which often have unique magnetic characteristics, allowing for indirect inference of oil-bearing areas through magnetometer measurements.

[0003] Staff will place the magnetic detection equipment on the ground in the area to be measured. They will find some relatively flat locations beforehand and then control it through intelligent equipment. The magnetic probe head will be used to detect the distribution of the underground magnetic field to infer the location of oil and gas reservoirs. During the detection process, if there are metallic substances or non-rock magnetized materials underground, they will change the local geomagnetic field, causing the detected magnetic field distribution to be disordered and abnormal. This change may interfere with the readings of the detector, thus affecting the accuracy of the detection results.

[0004] In existing technologies, since it is impossible to observe with the naked eye whether there are metallic substances or non-rock magnetized bodies underground at the detection location, when abnormal readings occur during the survey, the equipment needs to be moved to other locations within the detection range for further surveying. If this situation is encountered repeatedly, the equipment position needs to be changed continuously, making the entire surveying process quite troublesome. Furthermore, even if placed on a relatively flat ground, the levelness of the detection equipment cannot be guaranteed, resulting in the detection head not being perpendicular to the measured surface, which also affects the measurement accuracy.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing intelligent magnetic detection devices. Summary of the Invention

[0006] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide an intelligent magnetic detection device for oil exploration, thereby solving the problem mentioned in the background that if the detection location is repeatedly found to contain metallic substances or non-rock magnetized bodies, the device needs to be constantly moved, making the entire exploration process cumbersome.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an intelligent magnetic detection device for oil exploration, including a support foot, a detection track fixed to the top of the support foot for guidance during the detection process, a drive mechanism set on the top of the detection track for controlling the detection position within the exploration range for effective exploration, and a detection mechanism set on one side of the drive mechanism for detecting oil and gas reservoirs and improving detection accuracy.

[0008] The probe track is configured as a vortex structure, and a controller is installed on the top of the mobile frame.

[0009] Preferably, the cross-section of the probe track is configured as an I-shaped structure.

[0010] Preferably, the driving mechanism includes a movable frame disposed at the top of the detection track. The movable frame has a U-shaped cross-section. A first roller is installed on one inner wall of the movable frame, and a servo motor is installed on the other inner wall of the movable frame. A second roller is installed on the other inner wall of the movable frame, and the output end of the servo motor is connected to the rotation shaft of the second roller.

[0011] Preferably, a ball bearing is provided between the inner top wall of the movable frame and the top of the detection track, and the outer walls of the first roller and the second roller are both in contact with the side wall of the detection track.

[0012] Preferably, the detection mechanism includes a fixed plate fixed to the outer wall of one side of the movable frame. The fixed plate has a through groove, a detection rod is provided at the center of the through groove, a magnetic detection head is provided at the bottom of the detection rod, a buffer assembly is provided at the top of the fixed plate outside the detection rod, and a reset assembly is provided at the bottom of the fixed plate outside the detection rod.

[0013] Preferably, a gravity block is provided on the outer wall of the probe rod at the top of the magnetic probe head.

[0014] Preferably, the buffer assembly includes a fixed cover fixed to the top of the fixed plate and located outside the probe rod, and an annular airbag that fits against the outer wall of the probe rod is fixed to the inner wall of the fixed cover.

[0015] Preferably, the reset assembly includes a connecting seat fixed to the outer wall of the probe rod, and an elastic rope is connected at an equal angle between the outer wall of the connecting seat and the inner wall of the through groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In this invention, if the reading detected by the magnetic probe at the initial position is abnormal, a signal is sent to the controller. The controller then starts the servo motor, which drives the second roller to rotate. Since the first and second rollers are respectively attached to the outer walls of the detection track, the rotation of the second roller allows the moving frame to move along the detection track. The moving frame uses ball bearings to reduce friction between the moving frame and the top of the detection track. On the vortex-structured detection track, the magnetic probe moves in a gradually inward trajectory, allowing it to cover the survey area when it reaches the other end of the detection track. If the abnormal reading detected by the magnetic probe disappears while it is moving with the moving frame, a signal is sent to the controller. The controller then shuts down the servo motor, stops the second roller, and stops the moving frame. The magnetic probe can then be used to survey the ground at the stopped position, eliminating the need for personnel to constantly adjust the device's position during the survey.

[0018] In this invention, if the device tilts at a small angle, and the moving frame moves to different positions, it will cause the fixed plate to tilt at different angles in different directions. Since the gravity of the weight block is always vertically downward, and in the state without tilting, the gravity of the probe rod and the magnetic probe head causes the elastic ropes at equal angles to be stretched evenly. The elastic ropes still have a certain degree of tensile strength, so that when the magnetic probe head tilts in different directions, the weight block will cause the probe rod and the magnetic probe head to always be vertically downward. The elastic ropes located on the connecting seat on the outer wall of the probe rod will stretch and shorten to different degrees. At the same time, the outer wall of the probe rod will deflect and compress a position of the annular airbag. The gas inside the annular airbag is in a state of circulation. When there is a depression on a certain part of the inner surface of the annular airbag, the relative inner surface will bulge. The adaptive deformation of the annular airbag is used to ensure the relative stability of the probe rod and the magnetic probe head during detection, and to avoid shaking when the magnetic probe head has not found a suitable exploration position. Thus, when using the magnetic probe head for detection, it remains vertically downward, ensuring measurement accuracy. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a first-view plan view of the present invention;

[0021] Figure 3 This is a second-view plan view of the present invention;

[0022] Figure 4 For the present invention Figure 3Enlarged view of point A in the image;

[0023] Figure 5 This is a cross-sectional perspective view of the driving mechanism of the present invention;

[0024] Figure 6 This is a cross-sectional plan view of the driving mechanism of the present invention;

[0025] Figure 7 This is a partial cross-sectional first-view perspective perspective view of the detection mechanism of the present invention;

[0026] Figure 8 This is a partial cross-sectional second-view perspective perspective view of the detection mechanism of the present invention.

[0027] In the diagram: 1. Support foot; 2. Detection track; 3. Moving frame; 4. Ball bearing; 5. First roller; 6. Servo motor; 7. Second roller; 8. Controller; 9. Fixing plate; 10. Detection rod; 11. Magnetic detection head; 12. Gravity block; 13. Fixing cover; 14. Annular airbag; 15. Connecting seat; 16. Elastic rope. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 8 The present invention provides a technical solution: an intelligent magnetic detection device for oil exploration, including a support foot 1, a detection track 2 fixed on the top of the support foot 1 for guiding during the detection process, a drive mechanism set on the top of the detection track 2 for controlling the detection position within the exploration range for effective exploration, and a detection mechanism set on one side of the drive mechanism for detecting oil and gas reservoirs and improving detection accuracy.

[0030] The probe track 2 is configured as a vortex structure, and the controller 8 is installed on the top of the moving frame 3.

[0031] The cross-section of probe orbit 2 is designed as an I-shaped structure.

[0032] It should be noted that the vortex structure of the detection track 2 enables the drive mechanism to move the detection mechanism in a gradually inward trajectory as it rotates, thus allowing the detection range to cover the survey area.

[0033] The drive mechanism includes a movable frame 3 set on top of the probe track 2. The movable frame 3 has a U-shaped cross-section. A first roller 5 is installed on one inner wall of the movable frame 3, and a servo motor 6 is installed on the other inner wall of the movable frame 3. A second roller 7 is installed on the other inner wall of the movable frame 3. The output end of the servo motor 6 is connected to the rotation shaft of the second roller 7.

[0034] A ball bearing 4 is provided between the top inner wall of the movable frame 3 and the top of the detection track 2, and the outer walls of the first roller 5 and the second roller 7 are both in contact with the side wall of the detection track 2.

[0035] It should be noted that the controller 8 and the servo motor 6 are electrically connected. The servo motor 6 starts to drive the second roller 7 to rotate. Since the first roller 5 and the second roller 7 are respectively attached to the outer walls of the two sides of the detection track 2, the rotation of the second roller 7 can make the moving frame 3 move along the detection track 2. The moving frame 3 can reduce the friction between the moving frame 3 and the top of the detection track 2 through the ball bearing 4.

[0036] The detection mechanism includes a fixed plate 9 fixed to the outer wall of one side of the movable frame 3. The fixed plate 9 has a through groove, and a detection rod 10 is set at the center of the through groove. A magnetic detection head 11 is set at the bottom of the detection rod 10. A buffer assembly is set at the top of the fixed plate 9 outside the detection rod 10, and a reset assembly is set at the bottom of the fixed plate 9 outside the detection rod 10.

[0037] A gravity block 12 is provided on the outer wall of the probe rod 10 at the top of the magnetic probe head 11.

[0038] The buffer assembly includes a fixed cover 13 fixed to the top of the fixed plate 9 and located outside the probe rod 10, and an annular airbag 14 that fits against the outer wall of the probe rod 10 is fixed to the inner wall of the fixed cover 13.

[0039] The reset assembly includes a connecting seat 15 fixed to the outer wall of the probe rod 10, and an elastic rope 16 is connected at an equal angle between the outer wall of the connecting seat 15 and the inner wall of the through groove.

[0040] It should be noted that the probe rod 10 and the magnetic probe head 11 are electrically connected, which is a conventional magnetic detector technology. Since the gravity of the weight block 12 is always vertically downward and there is no tilting, the gravity of the probe rod 10 and the magnetic probe head 11 causes the elastic rope 16 at the same angle to be uniformly stretched. The elastic rope 16 still has a certain degree of tensile strength, so that when the magnetic probe head 11 tilts in different directions, the gravity block 12 will cause the probe rod 10 and the magnetic probe head 11 to always remain vertically downward, located at the probe... The elastic rope 16 on the outer wall connecting seat 15 of the rod 10 will stretch and shorten to different degrees. At the same time, the outer wall of the probe rod 10 will deviate and squeeze a position of the annular airbag 14. The gas inside the annular airbag 14 is in a state of flow. When a certain point on the inner surface of the annular airbag 14 is concave, the relative inner surface will bulge. The adaptive deformation of the annular airbag 14 is used to ensure the relative stability of the probe rod 10 and the magnetic probe head 11 during detection, and to avoid the magnetic probe head 11 from shaking when it has not found a suitable position for exploration.

[0041] Working principle: First, the staff will select the area where oil exploration needs to be carried out and move the device to a relatively flat position in the area. The detection track 2 is placed on the flat area using the support feet 1 at the bottom. The initial position of the moving frame 3 is located at the outer end of the detection track 2 of the vortex structure. At this time, the magnetic probe 11 is started by the controller 8 to carry out the detection. The magnetic probe 11 and the servo motor 6 are controlled by signals. When the reading detected by the magnetic probe 11 is abnormal, the signal can be sent to the controller 8, and the controller 8 controls the servo motor 6 to start.

[0042] Then, if the reading detected by the magnetic probe 11 at the initial position is abnormal, a signal is sent to the controller 8. The controller 8 then controls the servo motor 6 to start, which in turn drives the second roller 7 to rotate. Since the first roller 5 and the second roller 7 are respectively attached to the outer walls of the two sides of the detection track 2, the rotation of the second roller 7 allows the moving frame 3 to move along the detection track 2. The moving frame 3 can reduce the friction between the moving frame 3 and the top of the detection track 2 through the ball bearings 4. On the vortex structure detection track 2, the magnetic probe 11 presents a gradually inward moving trajectory when it moves around, so that when the magnetic probe 11 moves to the other end of the detection track 2, it can cover the survey area. When the magnetic probe 11 moves with the moving frame 3, if the abnormal reading detected by the magnetic probe 11 disappears, a signal is sent to the controller 8. The controller 8 then controls the servo motor 6 to shut down, and the second roller 7 stops rotating, causing the moving frame 3 to stop moving. The magnetic probe 11 can then be used to survey the underground at the stopped position, so that the operator does not need to constantly adjust the position of the device during the survey.

[0043] Finally, even if the ground in the survey area is relatively flat, uneven ground can easily cause the device to tilt at a small angle. When tilted, the moving frame 3 will tilt the fixed plate 9 at different angles in different directions as it moves to different positions. Since the gravity of the weight block 12 is always vertically downward, and even when not tilted, the gravity of the probe rod 10 and the magnetic probe head 11 causes the elastic rope 16 to be stretched evenly at equal angles. The elastic rope 16 still has a certain degree of tensile strength, so that when the magnetic probe head 11 tilts in different directions, the gravity block 12 will cause the probe rod 10 and the magnetic probe head 11 to always remain vertically downward. The elastic rope 16 on the connecting seat 15 on the outer wall of the probe 10 will stretch and shorten to different degrees. At the same time, the outer wall of the probe 10 will deflect and compress a position of the annular airbag 14. The gas inside the annular airbag 14 is in a state of flow. When a certain point on the inner surface of the annular airbag 14 is concave, the relative inner surface will bulge. The adaptive deformation of the annular airbag 14 is used to ensure the relative stability of the probe 10 and the magnetic probe head 11 during detection, and to prevent the magnetic probe head 11 from shaking when it has not found a suitable position for exploration. This ensures that the magnetic probe head 11 remains vertical and downward when it is used for detection, thus ensuring measurement accuracy.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent magnetic detection device for oil exploration, comprising a supporting foot (1), characterized in that: It also includes a detection track (2) fixed on the top of the support foot (1) for guidance during the detection process, a drive mechanism set on the top of the detection track (2) for controlling the detection position within the exploration range for effective exploration, and a detection mechanism set on one side of the drive mechanism for detecting oil and gas reservoirs and improving detection accuracy. The detection track (2) is configured as a vortex structure, and a controller (8) is installed on the top of the moving frame (3). A gravity block (12) is provided on the outer wall of the probe rod (10) at the top of the magnetic probe head (11). The buffer assembly includes a fixed cover (13) fixed to the top of the fixed plate (9) and located outside the probe (10), and an annular airbag (14) attached to the outer wall of the fixed cover (13) is fixed to the inner wall of the fixed cover (13). The reset assembly includes a connecting seat (15) fixed to the outer wall of the probe rod (10), and an elastic rope (16) is connected at an equal angle between the outer wall of the connecting seat (15) and the inner wall of the through groove. The detection mechanism includes a fixed plate (9) fixed to the outer wall of one side of the movable frame (3). The fixed plate (9) has a through slot, and a detection rod (10) is provided at the center of the through slot. A magnetic detection head (11) is provided at the bottom of the detection rod (10). A buffer assembly is provided at the top of the fixed plate (9) outside the detection rod (10), and a reset assembly is provided at the bottom of the fixed plate (9) outside the detection rod (10).

2. The intelligent magnetic detection device for oil exploration according to claim 1, characterized in that: The cross-section of the probe track (2) is set as an I-shaped structure.

3. The intelligent magnetic detection device for oil exploration according to claim 1, characterized in that: The driving mechanism includes a movable frame (3) set on the top of the detection track (2). The movable frame (3) has a U-shaped cross-section. A first roller (5) is installed on one inner wall of the movable frame (3), and a servo motor (6) is installed on the other inner wall of the movable frame (3). A second roller (7) is installed on the other inner wall of the movable frame (3). The output end of the servo motor (6) is connected to the rotation shaft of the second roller (7).

4. The intelligent magnetic detection device for oil exploration according to claim 3, characterized in that: A ball bearing (4) is provided between the top inner wall of the mobile frame (3) and the top of the detection track (2), and the outer walls of the first roller (5) and the second roller (7) are both in contact with the side wall of the detection track (2).

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