Well gun seismic source explosive column discharging device for seismic exploration

Abstract

The utility model belongs to the technical field of seismic exploration, and particularly relates to a seismic exploration well gun seismic source grain discharging device which comprises a discharging pipe, a lengthened electric wire, a switch button, an electromagnet and a grain body, an anchor rod is installed at the top end of the discharging pipe, the grain body is installed on the inner side of the bottom end of the discharging pipe, and a grain cap assembly is arranged at the bottom of the grain body. An iron sheet is fixedly bonded to the top end of the grain body, limiting sliding grooves are formed in the inner wall of the top end of the medicine discharging pipe in a bilateral symmetry mode, a distance adjusting assembly is installed in the top end of the medicine discharging pipe, a movable pipe is slidably installed in the top end of the medicine discharging pipe, and an electromagnet is fixedly connected to the bottom end of the movable pipe. One end of the lengthened electric wire penetrates through the medicine discharging pipe and is movably connected with the medicine discharging pipe, the end, located in the medicine discharging pipe, of the lengthened electric wire is electrically connected with the electromagnet, and a switch button is installed on the lengthened electric wire. According to the utility model, the grain body can be conveniently left at the bottom of the well, the discharging speed is high, and the efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of seismic exploration technology, and in particular relates to a device for loading seismic source charge in well drilling for seismic exploration. Background Technology

[0002] Currently, during the field seismic exploration and construction, if it is necessary to generate a seismic source deep underground in places where the terrain cannot be accessed by a seismic source vehicle, it is necessary to drill a well and place the seismic source charge in the well. However, wells in different regions, at different times, at different depths, and with different drilling methods may contain water and silt, which may affect and interfere with the placement of the seismic source charge.

[0003] The current conventional method of detonation involves placing the explosive charge at the wellhead and then using a long anchor rod to push it directly into the well. However, due to friction between the explosive charge and the well wall, and the unevenness of the well wall, the explosive charge is easily affected by thrust, friction, and gravity during detonation, leading to sticking. This prevents the explosive charge from reaching the intended depth, resulting in insufficient ignition energy. Furthermore, the explosive energy may propagate towards the wellhead, posing a significant safety hazard. Therefore, there is an urgent need to improve existing explosive charge placement devices and provide a detonation device for seismic exploration well-shot source explosive charges. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a seismic exploration well-shot source propellant loading device that is reasonably designed, simple in structure, avoids well blockage by propellant, and facilitates the propellant reaching the predetermined depth, 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 seismic exploration well-shot source charge delivery device includes a delivery tube, an extension wire, a switch button, an electromagnet, and a charge body. An anchor rod is installed at the top of the delivery tube, and the charge body is installed on the inner side of the bottom end of the delivery tube. A charge cap assembly is provided at the bottom of the charge body, and an iron plate is bonded and fixed to the top of the charge body. Limiting grooves are symmetrically formed on the inner wall of the top end of the delivery tube. An adjustment assembly is installed inside the top end of the delivery tube. A movable tube is slidably installed inside the top end of the delivery tube, and an electromagnet is fixedly connected to the bottom end of the movable tube. One end of the extension wire passes through the delivery tube and is movably connected to it. The end of the extension wire located inside the delivery tube is electrically connected to the electromagnet. A switch button is installed on the extension wire.

[0007] In a preferred embodiment, a threaded post is fixedly installed at the center of the top of both the drug delivery tube and the anchor rod, and a threaded hole adapted to the threaded post is opened at the center of the bottom of the anchor rod.

[0008] In a preferred embodiment, the medicated pipe and the anchor bolt are detachably connected, and the number of anchor bolts is at least two.

[0009] In a preferred embodiment, the medicine cap assembly includes a positioning block, a storage slot, and a rotating rod. The positioning block has multiple storage slots at equal angles on its peripheral outer wall. A rotating rod is rotatably installed in each storage slot, and the longitudinal section of the rotating rod is an "L" shaped structure.

[0010] In a preferred embodiment, the positioning block is a conical structure and is bonded and fixed to the bottom of the drug cartridge body. The positioning block and the drug delivery tube are provided with a serrated structure that can interlock with each other at their respective ends.

[0011] In a preferred embodiment, a counterweight is embedded and fixed on the outer wall of the vertical section of the rotating rod, and the top of the rotating rod is provided with an inclined surface.

[0012] In a preferred embodiment, the adjusting assembly includes a crank handle, a positioning bolt, a first bevel tooth, a threaded rod, and a second bevel tooth. The crank handle bearing is installed at the top end of the dispensing tube. The positioning bolt is installed on the internal thread of the right side of the top end of the dispensing tube. The first bevel tooth is fixedly connected to one end of the crank handle located inside the dispensing tube. The threaded rod is installed on the internal bearing at the top end of the dispensing tube. The second bevel tooth is fixedly connected to the top end of the threaded rod, and the second bevel tooth meshes with the first bevel tooth.

[0013] In a preferred embodiment, the movable tube is threaded onto the outside of the threaded rod, and the top of the movable tube has symmetrically fixed limit blocks on its left and right outer walls. The two limit blocks are respectively engaged and slidably located in the left and right limit grooves.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the solution of this utility model:

[0016] This device houses the propellant cartridge within the delivery tube. During delivery, the cartridge body is protected from deflection due to well wall friction and gravity, preventing well jamming. One end of the extension cord is connected to a power source, and the positioning block and iron plate are respectively glued and fixed to both ends of the cartridge body. When energized, the electromagnet generates an attractive force that draws the cartridge body in, ensuring a stable engagement between the positioning block and the delivery tube. This prevents mud from entering the delivery tube. After the cartridge body is pushed to the designated well depth, the power can be cut off, and the anchor rod and delivery tube can be pulled out. At this point, under the action of the counterweight, multiple rotating rods can rotate outward and contact the uneven well wall, facilitating the positioning of the cap assembly and the cartridge body. The cartridge body can remain at the bottom of the well, completing the delivery. The delivery speed is fast and the efficiency is high.

[0017] The length of the medicine column body will change as the amount of medicine increases or decreases. When installing the medicine column body, the first bevel tooth can be rotated manually by rotating the handle. The second bevel tooth, which meshes with the first bevel tooth, can then be used to control the rotation of the threaded rod. This controls the movable tube, the limiting block, and the electromagnet to move down and adjust synchronously along the limiting groove until the electromagnet contacts and adheres to the iron plate at the top of the medicine column body. This facilitates the stable storage and installation of the medicine column body and prevents it from falling off during the medicine dispensing process. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the dispensing tube of this utility model;

[0021] Figure 3 This is a top view cross-sectional diagram of the overall structure of the medicine cap assembly of this utility model;

[0022] Figure 4 This is a front view schematic diagram of the drug delivery tube and positioning block of this utility model;

[0023] Figure 5 This is a schematic diagram of the overall front view of the adjustable distance component of this utility model;

[0024] Figure 6 This is a front view cross-sectional structural diagram of the rotating rod and counterweight block of this utility model.

[0025] In the picture:

[0026] 1. Dispensing tube; 2. Anchor bolt; 3. Threaded post; 4. Threaded hole; 5. Extension cord; 6. Switch button; 7. Dispensing cap assembly; 71. Positioning block; 72. Storage slot; 73. Rotating rod; 74. Counterweight; 8. Limiting groove; 9. Adjusting distance assembly; 91. Handle; 92. Positioning bolt; 93. First bevel tooth; 94. Threaded rod; 95. Second bevel tooth; 10. Movable tube; 11. Limiting block; 12. Electromagnet; 13. Dispensing cartridge body; 14. Iron sheet. Detailed Implementation

[0027] 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:

[0028] like Figure 1-6As shown, the present invention relates to a seismic exploration well-shot source charge loading device, which includes a charge loading tube 1, an extension wire 5, a switch button 6, an electromagnet 12, and a charge body 13. An anchor rod 2 is installed at the top of the charge loading tube 1, and the charge body 13 is installed on the inner side of the bottom end of the charge loading tube 1. A charge cap assembly 7 is provided at the bottom of the charge body 13, and an iron sheet 14 is bonded and fixed at the top of the charge body 13. Limiting grooves 8 are symmetrically opened on the inner wall of the top end of the charge loading tube 1. An adjustment component 9 is installed inside the top end of the charge loading tube 1. A movable tube 10 is slidably installed inside the top end of the charge loading tube 1. The bottom end of the movable tube 10 is fixedly connected to the electromagnet 12. One end of the extension wire 5 passes through the charge loading tube 1 and is movably connected to it. The end of the extension wire 5 located inside the charge loading tube 1 is electrically connected to the electromagnet 12. A switch button 6 is installed on the extension wire 5.

[0029] Based on the above structure, threaded posts 3 are fixedly installed at the top center of both the drug delivery tube 1 and the anchor rod 2, and a threaded hole 4 that matches the threaded post 3 is opened at the bottom center of the anchor rod 2.

[0030] Based on the above structure, the drug delivery tube 1 and the anchor rod 2 are detachably connected, and the number of anchor rods 2 is at least two.

[0031] In this embodiment, the use of threaded rods 3 and threaded holes 4 facilitates the splicing between the drug delivery tube 1 and the anchor rod 2, as well as between multiple anchor rods 2, in order to adapt to different well depths.

[0032] Based on the above structure, the medicine cap assembly 7 includes a positioning block 71, a storage slot 72 and a rotating rod 73. Multiple storage slots 72 are opened at equal angles on the outer periphery of the positioning block 71. A rotating rod 73 is rotatably installed in each storage slot 72. The longitudinal section of the rotating rod 73 is an "L" shaped structure.

[0033] Based on the above structure, the positioning block 71 is a conical structure and is bonded and fixed to the bottom of the drug cartridge body 13. The positioning block 71 and the drug delivery tube 1 are provided with a serrated structure that can interlock with each other at their respective ends.

[0034] In this embodiment, the serrations at the close ends of the positioning block 71 and the dosing tube 1 can interlock tightly, which can prevent mud in the well from entering the dosing tube 1 and ensure the stable lowering of the dosing column body 13.

[0035] Based on the above structure, a counterweight 74 is embedded and fixed on the outer wall of the vertical section of the rotating rod 73, and an inclined surface is provided at the top of the rotating rod 73.

[0036] In this embodiment, when the drug delivery tube 1 is pulled out after the drug delivery is completed, under the action of the counterweight 74, multiple rotating rods 73 can rotate outward and contact the uneven well wall, so that the drug cap assembly 7 and the drug column body 13 can remain at the bottom of the well, while the drug delivery tube 1 and the anchor rod 2 can be directly pulled out for reuse.

[0037] Based on the above structure, the adjusting assembly 9 includes a crank handle 91, a positioning bolt 92, a first bevel tooth 93, a threaded rod 94, and a second bevel tooth 95. The crank handle 91 is mounted on the top end of the medicine tube 1 with a bearing. The positioning bolt 92 is installed on the internal thread of the right side of the top end of the medicine tube 1. The first bevel tooth 93 is fixedly connected to one end of the crank handle 91 located inside the medicine tube 1. The threaded rod 94 is mounted on the internal bearing of the top end of the medicine tube 1. The second bevel tooth 95 is fixedly connected to the top end of the threaded rod 94. The second bevel tooth 95 meshes with the first bevel tooth 93.

[0038] Based on the above structure, the movable tube 10 is threaded onto the outside of the threaded rod 94. The top left and right outer walls of the movable tube 10 are symmetrically fixed with limiting blocks 11, and the two limiting blocks 11 are respectively engaged and slidably located in the left and right limiting grooves 8.

[0039] In this embodiment, by manually rotating the crank handle 91 and the first bevel tooth 93, the second bevel tooth 95, which meshes with the first bevel tooth 93, can control the rotation of the threaded rod 94. This facilitates the synchronous vertical movement of the movable tube 10, the limiting block 11, and the electromagnet 12 along the limiting slide groove 8. It also facilitates the adjustment of the position of the electromagnet 12 when installing drug cartridge bodies 13 of different lengths, and facilitates the stable installation and storage of the drug cartridge body 13.

[0040] The working principle of this utility model is as follows:

[0041] In use, firstly, the positioning block 71 is attached to the bottom of the drug cartridge body 13, and the iron plate 14 is attached to the top of the drug cartridge body 13. Then, the drug cartridge body 13 is inserted into the drug delivery tube 1, and the serrated structure at the top of the positioning block 71 and the serrated structure at the bottom of the drug delivery tube 1 are interlocked to prevent mud from entering the drug delivery tube 1. Then, the extension cord 5 is connected to the portable power supply and powered on. The electromagnet 12 is powered on by the switch button 6 to generate a strong suction force, which can achieve the effect of adsorbing and positioning the drug cartridge body 13 through the iron plate 14. Then, using the threaded column 3 and threaded hole 4, an appropriate number of anchor rods 2 are installed in sequence at the top of the drug delivery tube 1. Then, the anchor rods 2 can be held by hand to send the drug delivery tube 1 into the well. During the drug delivery process, the drug cartridge body 13 can avoid deflection due to the friction of the well wall and gravity, preventing the well from getting stuck, and facilitating a more stable and smooth drug delivery operation.

[0042] During the process of sending the charge body 13 to the bottom of the well, the rotating rod 73 can rotate towards the receiving groove 72 to avoid the pressure of the uneven well wall, ensuring the stable downward movement of the charge tube 1 and the charge body 13. When the charge body 13 is sent to the bottom of the well, the electromagnet 12 can be de-energized by the switch button 6. After the attraction is lost, the anchor rod 2 and the charge tube 1 can be pulled out. At this time, under the action of the counterweight 74, multiple rotating rods 73 can rotate and contact the uneven well wall, which is convenient for positioning the charge cap assembly 7 and the charge body 13. With the help of gravity, the charge body 13 can remain at the bottom of the well to complete the charge. The charge is fast and efficient. Moreover, the charge tube 1 and the anchor rod 2 can be recycled after being pulled out.

[0043] The length of the medicine column body 13 will change according to the amount of medicine. Therefore, when installing the medicine column body 13, the crank handle 91 and the first bevel tooth 93 can be manually rotated. The second bevel tooth 95, which meshes with the first bevel tooth 93, controls the rotation of the threaded rod 94. This controls the movable tube 10, the limiting block 11 and the electromagnet 12 to move vertically downward along the limiting slide groove 8 in sync. This makes it easy for the electromagnet 12 to fit tightly with the iron plate 14 on the top of the medicine column body 13, which facilitates the stable adsorption and positioning of the medicine column body 13 and prevents the medicine column body 13 from falling accidentally during the medicine dispensing process. It also allows the positioning bolt 92 to be tightened to engage and position the crank handle 91.

[0044] It should be noted that the extension cord 5, the switch button 6, and the electromagnet 12 are all mature existing products. Their specific connection methods, operating principles, and control methods are all mature existing technologies, so they will not be described in detail in this article.

[0045] 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 downhole charge device for a seismic exploration well, comprising a downhole charge tube (1), an extension wire (5), a switch button (6), an electromagnet (12) and a charge body (13), characterized in that: An anchor rod (2) is installed at the top of the drug delivery tube (1). A drug column body (13) is installed on the inner side of the bottom end of the drug delivery tube (1). A drug cap assembly (7) is provided at the bottom of the drug column body (13). An iron sheet (14) is glued and fixed at the top of the drug column body (13). A limit groove (8) is symmetrically opened on the inner wall of the top end of the drug delivery tube (1). An adjustment assembly (9) is installed inside the top end of the drug delivery tube (1). A movable tube (10) is slidably installed inside the top end of the drug delivery tube (1). An electromagnet (12) is fixedly connected to the bottom end of the movable tube (10). One end of the extension wire (5) passes through the drug delivery tube (1) and is movably connected to it. One end of the extension wire (5) located inside the drug delivery tube (1) is electrically connected to the electromagnet (12). A switch button (6) is installed on the extension wire (5).

2. The downhole charge device for a seismic well-cannon source according to claim 1, characterized in that: Both the drug delivery tube (1) and the anchor rod (2) have threaded posts (3) fixedly installed at the top center, and the bottom center of the anchor rod (2) has a threaded hole (4) that matches the threaded post (3).

3. The downhole charge device of claim 2, wherein: The drug delivery tube (1) and the anchor rod (2) are detachably connected, and the number of anchor rods (2) is at least two.

4. The downhole charge device of claim 1, wherein: The medicine cap assembly (7) includes a positioning block (71), a storage slot (72) and a rotating rod (73). The positioning block (71) has multiple storage slots (72) at equal angles on its peripheral outer wall. A rotating rod (73) is rotatably installed in each storage slot (72). The longitudinal section of the rotating rod (73) is an "L" shaped structure.

5. The downhole charge device of claim 4, wherein: The positioning block (71) is a conical structure and is bonded and fixed to the bottom of the drug cartridge body (13). The positioning block (71) and the drug delivery tube (1) are provided with a serrated structure that can interlock with each other at their respective ends.

6. The seismic exploration well-shot source charge loading device according to claim 5, characterized in that: A counterweight (74) is embedded and fixed on the outer wall of the vertical section of the rotating rod (73), and the top of the rotating rod (73) is provided with an inclined surface.

7. The downhole charge device of claim 1, wherein: The adjustable distance assembly (9) includes a crank (91), a positioning bolt (92), a first bevel tooth (93), a threaded rod (94), and a second bevel tooth (95). The crank (91) is mounted on the top of the medicine tube (1). The positioning bolt (92) is installed on the internal thread of the right side of the top of the medicine tube (1). The first bevel tooth (93) is fixedly connected to one end of the crank (91) inside the medicine tube (1). The threaded rod (94) is mounted on the internal bearing of the top of the medicine tube (1). The second bevel tooth (95) is fixedly connected to the top of the threaded rod (94). The second bevel tooth (95) meshes with the first bevel tooth (93).

8. The downhole charge device of claim 7, wherein: The movable tube (10) is threaded onto the outside of the threaded rod (94). The top of the movable tube (10) has symmetrically fixed limit blocks (11) on the left and right outer walls. The two limit blocks (11) are respectively engaged and slidably located in the left and right limit grooves (8).

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