Micro-logging data acquisition device in seismic exploration
By designing a micro-logging data acquisition device, which utilizes a driving component and a servo motor-controlled striking component for intermittent striking, the problem of cumbersome operation of existing micro-logging data acquisition devices in complex terrain is solved, thereby improving data acquisition efficiency and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-13
AI Technical Summary
Existing micro-logging data acquisition devices are cumbersome and heavy to operate in complex terrain, resulting in low production efficiency and failing to meet the production needs of complex terrain.
A data acquisition device was designed, comprising a micro-logging unit, a nodal seismograph, an external geophone string, a striking assembly, and a timer. The striking assembly is controlled by a drive assembly and a servo motor to perform intermittent striking, and the time is recorded by the timer. The nodal seismograph records and stores the data, and the device can be quickly moved to the next observation point.
It achieves simple operation and high data acquisition efficiency in complex terrain, saves production costs, and improves the efficiency of field construction.
Smart Images
Figure CN223992966U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of seismic exploration technology, and in particular relates to a micro-logging data acquisition device for seismic exploration. Background Technology
[0002] In seismic exploration, the current method for acquiring micrologging data involves a dedicated acquisition computer connected to multiple geophones in the well, followed by a surface excitation device, and step-by-step data acquisition. However, in some mountainous and plateau areas, after acquiring data at the current location, it is necessary to move to the next location, which is very inconvenient, inefficient, and requires a large amount of manpower. The traditional wired digital seismograph micrologging acquisition method can no longer meet the needs of production in complex terrains. With the advancement of science and technology and the development of nodal instruments, various methods for acquiring micrologging data have been devised to replace the traditional methods, greatly shortening the field production cycle and improving efficiency.
[0003] Currently, the conventional method for acquiring micrologging data involves inserting a micrologging instrument with multiple geophones one by one into the well. However, existing micrologging instruments are large, heavy, and cumbersome to operate, making them unsuitable for complex terrain. In actual micrologging field production, these bulky instruments have drawbacks in acquiring data from complex terrain, failing to meet current production needs and significantly limiting micrologging field production in complex terrain. Therefore, to overcome the shortcomings of existing micrologging data acquisition devices in seismic exploration, this paper proposes a micrologging data acquisition device for seismic exploration. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a seismic exploration micro-logging data acquisition device that is reasonably designed, simple in structure, easy to operate, has high data acquisition efficiency, is easy to move, and is convenient to use in complex terrain, thereby solving the problems existing in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A micro-logging data acquisition device for seismic exploration includes a micro-logging well, a nodal seismograph, an external geophone string, a percussion assembly, and a timer. A crossbar is located at the top center of the micro-logging well. The nodal seismograph is located on the left side of the micro-logging well, and a base frame is located on the right side. An external geophone string is mounted on the nodal seismograph via a connecting wire. A movable support is slidably mounted on the upper end of the base frame. A drive assembly is mounted at the inner center of the movable support, and a percussion assembly is located on the inner bottom of the drive assembly. A fixing rod is fixed to the inner top wall of the movable support, and a square rod is fixed to the bottom end of the fixing rod. A servo motor is fixed to the upper right rear surface of the base frame, and a lead screw is fixedly connected to the output end of the servo motor. A guide rod is fixed to the upper front of the base frame. The bottom rear end of the movable support is threaded onto the outside of the lead screw, and the bottom front end of the movable support is slidably mounted onto the outside of the guide rod. A timer is fixedly mounted on the top front end of the movable support.
[0007] In a preferred embodiment, through holes are provided at both ends of the crossbar and at the four right angles of the bottom frame.
[0008] In a preferred embodiment, an indicator mark is embedded and fixed on the outer wall of the bottom front end of the movable bracket. The indicator mark has an inverted triangular structure, and a scale is embedded on the upper front end of the bottom frame. The indicator mark is located above the scale.
[0009] In a preferred embodiment, the drive assembly includes a horizontal shaft, a drive motor, a disc, and a guide groove. The horizontal shaft bearing is installed on the inner side of the middle of the movable bracket. The horizontal shaft is rotatably connected to the fixed rod. The drive motor is fixedly installed on the outer wall of the rear end of the movable bracket. The output shaft of the drive motor is fixedly connected to the rear end of the horizontal shaft. Discs are fixedly sleeved on the outer sides of both ends of the horizontal shaft. The two discs are symmetrical about the movable bracket. Guide grooves are opened on the side of the two discs that are close to each other.
[0010] In a preferred embodiment, the guide groove is teardrop-shaped and includes an annular segment and a V-shaped segment, wherein the V-shaped segment is connected to the annular segment and the center of the annular segment is located on the transverse center line of the horizontal axis.
[0011] In a preferred embodiment, the striking assembly includes a vertical tube, a horizontal column, a hammer, and a discus. The vertical tube is slidably fitted onto the outside of the square rod. The top outer wall of the vertical tube is symmetrically fixed with horizontal columns at the front and back. The bottom end of the vertical tube is fixedly installed with a hammer. A discus is placed directly below the hammer and is placed on the ground.
[0012] In a preferred embodiment, the end of the horizontal column away from the vertical tube is guided and slidably located in the guide groove, and the weight and the discus are connected in series with the timer on the same circuit. The timer model is RTM3.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] In the solution of this utility model:
[0015] Micro-logging wells are excavated on the ground, and an external geophone string is lowered into the well. The nodal seismograph is turned on, and after normal detection, the driving component controls the striking component to start striking. The striking time is recorded by a timer. The seismic waves generated after striking are transmitted through the external geophone string to generate signals, which are recorded and stored by the nodal seismograph. The data volume recorded by the nodal seismograph is extracted by using the time recorded by the timer, thus obtaining the micro-logging well record. Compared with existing technologies, this device has a simple structure, is easy to operate, is convenient to use in complex terrain, has high data acquisition efficiency, is beneficial to the field construction and production of micro-logging wells, and saves production costs.
[0016] The drive motor controls the horizontal axis and two discs to rotate synchronously and at a constant speed. When one end of the horizontal column is in the annular section of the guide groove, the striking component is stationary. When one end of the horizontal column is in the V-shaped section of the guide groove, as the discs rotate, the horizontal column can be pushed to drive the vertical pipe and the hammer to rise and fall steadily and quickly along the square rod once, which can cause one hammering of the iron disc. During the rotation of the disc, the iron disc can be struck intermittently. Moreover, by starting the servo motor to control the rotation of the lead screw, the movable support can be controlled to move to the left along the guide rod, which is convenient for adjusting the distance between the striking position and the micro-logging well, and facilitates quick movement to the next observation point, which is convenient for acquiring multiple sets of data and has a higher data accuracy. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:
[0018] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model;
[0019] Figure 2 This is a top view of the bottom frame and scale of this utility model.
[0020] Figure 3 This is a schematic diagram of the left side of the drive assembly and striking assembly of this utility model;
[0021] Figure 4 This is a schematic diagram of the overall left-side structure of the drive assembly of this utility model;
[0022] Figure 5 This is a schematic diagram of the overall left-side structure of the striking component of this utility model;
[0023] Figure 6 This is a left-side view of the working structure of the striking component of this utility model.
[0024] In the picture:
[0025] 1. Nodal seismograph; 2. Connecting cable; 3. External detector string; 4. Horizontal bar; 5. Base frame; 6. Movable support; 7. Indicator; 8. Drive assembly; 81. Horizontal axis; 82. Drive motor; 83. Disc; 84. Guide groove; 9. Striking assembly; 91. Vertical tube; 92. Horizontal column; 93. Weight; 94. Disc; 10. Fixed rod; 11. Square rod; 12. Servo motor; 13. Lead screw; 14. Guide rod; 15. Scale; 16. Timer. Detailed Implementation
[0026] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:
[0027] like Figure 1-6 As shown, the micro-logging data acquisition device for seismic exploration of this utility model includes a micro-logging well, a nodal seismograph 1, an external geophone string 3, a percussion assembly 9, and a timer 16. A crossbar 4 is located at the top center of the micro-logging well. The nodal seismograph 1 is located on the left side of the micro-logging well, and a base frame 5 is located on the right side of the micro-logging well. The external geophone string 3 is installed on the nodal seismograph 1 via a connecting line 2. A movable support 6 is slidably mounted on the upper end of the base frame 5. A drive assembly 8 is installed at the inner center of the movable support 6. The bottom end of the drive assembly 8... The inner side is provided with a striking component 9. A fixing rod 10 is fixed to the inner wall of the top of the movable bracket 6. A square rod 11 is fixed to the bottom end of the fixing rod 10. A servo motor 12 is fixed to the upper right rear end of the bottom frame 5. A lead screw 13 is fixedly connected to the output end of the servo motor 12. A guide rod 14 is fixed to the upper front of the bottom frame 5. The bottom rear end of the movable bracket 6 is threaded onto the outside of the lead screw 13. The bottom front end of the movable bracket 6 is slidably sleeved onto the outside of the guide rod 14. A timer 16 is fixedly installed on the top front end of the movable bracket 6.
[0028] Based on the above structure, through holes are provided at both ends of the crossbar 4 and at the four right angles of the bottom frame 5.
[0029] In this embodiment, the through-hole structure inside the crossbar 4 and the bottom frame 5 facilitates the use of pins to position the crossbar 4 and the bottom frame 5 on the soil surface.
[0030] Based on the above structure, an indicator mark 7 is inlaid and fixed on the outer wall of the bottom front end of the movable bracket 6. The indicator mark 7 is an inverted triangular structure. A scale 15 is inlaid on the upper front end of the bottom frame 5. The indicator mark 7 is located above the scale 15.
[0031] In this embodiment, the indicator mark 7 and the scale 15 work together to facilitate precise control of the distance between the movable support 6 and the micro-logging well.
[0032] Based on the above structure, the drive assembly 8 includes a horizontal shaft 81, a drive motor 82, a disc 83, and a guide groove 84. The horizontal shaft 81 is mounted on the inner side of the middle part of the movable bracket 6. The horizontal shaft 81 is rotatably connected to the fixed rod 10. The drive motor 82 is fixedly mounted on the outer wall of the rear end of the movable bracket 6. The output shaft of the drive motor 82 is fixedly connected to the rear end of the horizontal shaft 81. Discs 83 are fixedly sleeved on the outer sides of both ends of the horizontal shaft 81. The two discs 83 are symmetrical about the movable bracket 6. Guide grooves 84 are opened on the side of the two discs 83 that are close to each other.
[0033] Based on the above structure, the guide groove 84 is teardrop-shaped and includes an annular segment and a V-shaped segment. The V-shaped segment is connected to the annular segment, and the center of the annular segment is located on the transverse center line of the horizontal axis 81.
[0034] Based on the above structure, the striking component 9 includes a vertical tube 91, a horizontal column 92, a hammer 93, and a discus 94. The vertical tube 91 is engaged and slidably sleeved on the outside of the square rod 11. The horizontal column 92 is symmetrically fixed to the front and back of the top outer wall of the vertical tube 91. The hammer 93 is fixedly installed at the bottom of the vertical tube 91. The discus 94 is located directly below the hammer 93 and is placed on the ground.
[0035] In this embodiment, when the drive motor 82 is started to control the horizontal shaft 81 and the disc 83 to rotate synchronously, the striking component 9 is stationary when one end of the horizontal column 92 is located in the annular section of the guide groove 84. When one end of the horizontal column 92 is located in the V-shaped section of the guide groove 84, as the disc 83 rotates, it can push the horizontal column 92 to drive the vertical tube 91 and the hammer 93 to rise and fall quickly once, which can cause a hammering of the iron disc 94. During the uniform rotation of the disc 83, intermittent striking of the iron disc 94 can be achieved. Furthermore, the vertical tube 91, which engages and slides with the square rod 11, facilitates the improvement of the rising and falling stability of the hammer 93 during the striking process.
[0036] Based on the above structure, the end of the horizontal column 92 away from the vertical tube 91 is guided and slidably located in the guide groove 84, and the weight 93 and the discus 94 are connected in series with the timer 16 in the same circuit. The timer 16 is model RTM3.
[0037] In this embodiment, when the hammer 93 moves down and strikes the discus 94, the timer 16 is energized to record the striking time.
[0038] The working principle of this utility model is as follows:
[0039] First, micro-logging wells are excavated at designated locations on the soil surface. Then, the nodal seismograph 1, crossbar 4, and base frame 5 are installed as follows: Figure 1The components shown are sequentially installed on the left, middle, and right sides of the micro-logging well. Then, the external geophone string 3, connected to the nodal seismograph 1 via connecting line 2, is lowered into the micro-logging well. The nodal seismograph 1 is then powered on. Simultaneously, the disc 94 is embedded in the ground and positioned directly below the counterweight 93. The drive motor 82 is started, controlling the horizontal axis 81 to rotate the disc 83 at a uniform speed. When one end of the horizontal column 92 is in the annular section of the guide groove 84, the striking component 9 is stationary. When one end of the horizontal column 92 is in the V-shaped section of the guide groove 84, as the disc 83 rotates, it can push... The moving horizontal column 92 drives the vertical pipe 91 and the hammer 93 to rise and fall rapidly along the square rod 11 once, which can cause a hammering of the iron disc 94. During the uniform rotation of the disc 83, the iron disc 94 can be struck intermittently. When the hammer 93 contacts the iron disc 94, the timer 16 is energized and can record the striking time. The seismic wave generated after the striking is transmitted through the external detector series 3 to generate a signal, which is recorded and stored by the nodal seismograph 1. By using the time recorded by the timer 16 to intercept the data volume recorded by the nodal seismograph 1, the micro-logging record can be obtained.
[0040] It can also start the servo motor 12 to control the screw 13 to rotate, which can control the movable bracket 6 to move to the left along the guide rod 14, and at the same time adjust the position of the iron disc 94 accordingly, so as to adjust the distance between the striking position and the micro-logging well. The distance can be precisely controlled by the indicator mark 7 and the scale 15, which facilitates quick movement to the next observation point, facilitates the acquisition of multiple sets of data, and improves the accuracy of the data.
[0041] Compared with existing technologies, this device has a simple structure, is easy to operate, is convenient to use in complex terrain, has high data acquisition efficiency, is beneficial to the field construction and production of micro-logging wells, and saves production costs.
[0042] It should be noted that the nodal seismograph 1, external detector string 3, drive motor 82, servo motor 12 and timer 16 in this device are all existing equipment, and the circuit layout between the weight 93, the discus 94 and the timer 16 is also a mature existing technology, so it will not be described in detail.
[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.
Claims
1. A microlog data acquisition device for use in seismic exploration comprising a microlog, a nodal seismometer (1), an external geophone string (3), a knock assembly (9) and a timer (16), characterised in that: The top middle of the micro-logging is provided with a crossbar (4), the left side of the micro-logging is provided with a node seismograph (1), the right side of the micro-logging is provided with a bottom frame (5), the node seismograph (1) is provided with an external detector string (3) through a connecting line (2), the upper end of the bottom frame (5) is slidably provided with a movable support (6), the inner middle position of the movable support (6) is provided with a driving assembly (8), the bottom end of the driving assembly (8) is provided with a knocking assembly (9), the top inner wall of the movable support (6) is fixedly provided with a fixed rod (10), the bottom end of the fixed rod (10) is fixedly provided with a square rod (11), the right rear upper end surface of the bottom frame (5) is fixedly provided with a servo motor (12), the output end of the servo motor (12) is fixedly connected with a lead screw (13), the front upper side of the bottom frame (5) is fixedly provided with a guide rod (14), the rear end bottom of the movable support (6) is threadedly sleeved on the outer side of the lead screw (13), the front end bottom of the movable support (6) is slidably sleeved on the outer side of the guide rod (14), and the front end top of the movable support (6) is fixedly provided with a timer (16).
2. The device for collecting micro-logging data in seismic exploration of claim 1, wherein: The left and right ends of the crossbar (4) and the four right angles of the bottom frame (5) are all provided with a through-hole structure.
3. The device for collecting micro-logging data in seismic exploration of claim 1, wherein: The front end bottom outer wall of the movable support (6) is embeddedly fixed with an indicating mark (7), the indicating mark (7) is a reverse triangular structure, the front end upper surface of the bottom frame (5) is embedded with a scale (15), and the indicating mark (7) is located above the scale (15).
4. The device for collecting micro-logging data in seismic prospecting according to claim 1, characterized in that: The driving assembly (8) comprises a horizontal shaft (81), a driving motor (82), a disc (83) and a guide groove (84), the horizontal shaft (81) is bearingly installed on the inner middle side of the movable support (6), and the horizontal shaft (81) is rotationally connected with the fixed rod (10); the driving motor (82) is fixedly installed on the rear end outer wall of the movable support (6), the output shaft of the driving motor (82) is fixedly connected with the rear end of the horizontal shaft (81), the two end outer sides of the horizontal shaft (81) are fixedly sleeved with the discs (83), the two discs (83) are front-rear symmetrical about the movable support (6), and the two discs (83) are all provided with the guide grooves (84) on the side close to each other.
5. The device for collecting micro-logging data in seismic prospecting according to claim 4, characterized in that: The guide groove (84) is in the shape of a water drop, the guide groove (84) comprises an annular segment and a V-shaped segment, the V-shaped segment is connected with the annular segment, and the center of the annular segment is located on the transverse center line of the horizontal shaft (81).
6. The device for collecting micro-logging data in seismic prospecting according to claim 5, characterized in that: The knocking assembly (9) comprises a vertical pipe (91), a horizontal column (92), a weight (93) and a discus (94), the vertical pipe (91) is slidably sleeved on the outer side of the square rod (11), the top end outer wall of the vertical pipe (91) is fixedly provided with the horizontal column (92) in front-rear symmetry, the bottom end of the vertical pipe (91) is fixedly installed with the weight (93), the discus (94) is located directly below the weight (93) and is placed on the ground.
7. The device for collecting micro-logging data in seismic prospecting according to claim 6, characterized in that: The end of the horizontal column (92) away from the vertical pipe (91) is guided and slidably located in the guide groove (84), the weight (93) and the discus (94) are connected in the same circuit with the timer (16), and the model of the timer (16) is RTM3.