Petroleum distribution sampling equipment for petroleum exploitation

Abstract

The invention discloses petroleum distribution sampling equipment for petroleum exploitation, and relates to the technical field of petroleum exploitation sampling, the petroleum distribution sampling equipment comprises a mounting plate, a driving assembly is arranged in the mounting plate, the driving assembly is in transmission connection with a cross rod, the cross rod is slidably connected with the inner wall of the mounting plate, the cross rod is slidably connected with a moving block, and the bottom surface of the moving block is fixedly connected with a collecting box; the bottom surface of the collecting box is fixedly connected and communicated with a sampling box, a plurality of groups of sampling assemblies are symmetrically arranged on the sampling box, a hollow cylinder is fixedly mounted in the sampling box, a material conveying box is slidably connected in the hollow cylinder, and the material conveying box is used for containing samples in the sampling assemblies. According to the invention, through sliding connection of the driving assembly and the moving block, flexible movement in a two-dimensional plane is realized, and a wider sampling area can be covered; due to the design of the multiple sampling assemblies and the material conveying box, samples at multiple positions can be collected at the same time, and the sampling efficiency is improved; and the sampling accuracy can be ensured by accurately controlling the movement of the moving block and the material conveying box and the drilling depth of the drill rod.

Description

Technical Field

[0001] The invention relates to the technical field of oil mining sampling, in particular to an oil distribution sampling device used in oil mining. Background Art

[0002] Oil extraction is a complex process involving exploration, drilling, development and production, aimed at extracting oil resources from underground reservoirs. With the advancement of technology, new extraction methods such as horizontal wells and hydraulic fracturing are widely used to improve recovery and efficiency.

[0003] The existing sampling equipment can only move in a single direction during the sampling process, that is, sampling one side of the same soil layer. In order to improve the accuracy of the samples, sampling in multiple directions is required. The existing equipment cannot meet the needs of multi-directional sampling.

[0004] Therefore, there is an urgent need for an oil distribution sampling device for oil mining to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a petroleum distribution sampling device for petroleum mining to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides an oil distribution sampling device for oil mining, comprising a mounting plate, a driving assembly is arranged in the mounting plate, the driving assembly is transmission-connected with a cross bar, the cross bar is slidably connected to the inner wall of the mounting plate, a moving block is slidably connected to the cross bar, the bottom surface of the moving block is fixedly connected to a collecting box, the bottom surface of the collecting box is fixedly connected to and connected to a sampling box, a plurality of groups of sampling assemblies are symmetrically arranged on the sampling box, a hollow cylinder is fixedly installed in the sampling box, a material transport box is slidably connected in the hollow cylinder, and the material transport box is used to hold samples in the sampling assembly.

[0007] Preferably, the drive assembly includes a first motor, a cavity is provided in the mounting plate, the first motor is located in the cavity, the output shaft of the first motor is fixedly connected to a first gear, the first gear is meshed with a ring gear, the ring gear is located in the cavity and is slidably connected to the cavity, and the inner wall of the ring gear is fixedly connected to the cross bar.

[0008] Preferably, the sampling assembly includes a box body fixedly connected to the outer wall of the hollow cylinder, a lifting assembly is installed in the box body, a connecting plate is fixedly connected to the lifting assembly, the connecting plate extends out of the box body, a third motor is fixedly connected to the bottom surface of the connecting plate, a drill rod is fixedly connected to the output shaft of the third motor, a collecting plate is provided under the drill rod, the collecting plate is fixedly connected to the lifting assembly, a conveyor belt is installed in the collecting plate, and samples in the collecting plate are sent into the material transport box.

[0009] Preferably, the lifting assembly includes a hydraulic rod fixedly connected to the inner bottom surface of the box body. The output end of the hydraulic rod is fixedly connected to the bottom surface of the aggregate plate. A connecting rod is fixedly connected between the aggregate plate and the connecting plate.

[0010] Preferably, a travel groove is formed in the box body. The connecting plate and the aggregate plate both pass through the travel groove and are slidably connected to the travel groove.

[0011] Preferably, a fourth motor is fixedly connected inside the material transportation box. A disc is fixedly connected to the output shaft of the fourth motor. A plurality of partition plates are fixedly connected circumferentially inside the disc. The plurality of partition plates divide the disc into a plurality of accommodating cavities for holding samples.

[0012] Preferably, one end of a steel wire rope is fixedly connected to the top surface of the material transportation box. The other end of the steel wire rope is fixedly connected to a winding device. The winding device is fixedly installed inside the collection box. An opening adapted to the material transportation box is formed in the bottom surface of the collection box.

[0013] Preferably, a second motor is fixedly connected inside the moving block. A second gear is fixedly connected to the output shaft of the second motor. A groove is formed in the cross bar, and a toothed plate is fixedly connected inside the groove. The second gear extends into the groove and meshes with the toothed plate.

[0014] Preferably, limiting grooves are symmetrically formed on both sides of the cross bar. The limiting grooves are perpendicular to the axial direction of the cross bar along the groove. Limiting strips are symmetrically fixedly connected inside the moving block. The limiting strips extend into the limiting grooves and are slidably connected to the limiting grooves.

[0015] Preferably, a plurality of ground plugs are fixedly connected to the bottom surface of the mounting plate.

[0016] The present invention discloses the following technical effects: During use, the device is placed into a pre - opened oil well. Through the combination of the mounting plate, the driving assembly, the cross bar, the moving block, the collection box, and the sampling box, flexible sampling of the oil distribution is achieved. Through the sliding connection between the driving assembly and the moving block, flexible movement in a two - dimensional plane is realized, enabling a wider sampling area to be covered; the design of multiple sampling components and the material transportation box can collect samples at multiple positions simultaneously, improving the sampling efficiency; by precisely controlling the movement of the moving block and the material transportation box, as well as the drilling depth of the drill pipe, the accuracy of sampling can be ensured; the overall structural design of the device is reasonable, ensuring the stability of the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a schematic structural diagram of the mounting plate of the present invention in the top-down direction;

[0020] Figure 3 is a schematic structural diagram of the moving block of the present invention in the top-down direction;

[0021] Figure 4 is a schematic structural diagram of the moving block of the present invention in the side view direction;

[0022] Figure 5 is a schematic internal structure diagram of the sampling box of the present invention;

[0023] Figure 6 is a schematic internal structure diagram of the box body of the present invention;

[0024] Figure 7 is a schematic internal structure diagram of the material transport box of the present invention;

[0025] Figure 8 is a schematic structural diagram of the disc of the present invention in the top-down direction;

[0026] In the figure: 1, mounting plate; 2, ground plug; 3, moving block; 4, cross bar; 5, collection box; 6, sampling box; 7, drill pipe; 8, aggregate plate; 9, annular gear; 10, first gear; 11, first motor; 12, cavity; 13, second gear; 14, second motor; 15, toothed plate; 16, limiting strip; 17, limiting groove; 18, hollow cylinder; 19, steel wire rope; 20, box body; 21, connecting plate; 22, third motor; 23, material transport box; 24, hydraulic rod; 25, connecting rod; 26, stroke groove; 27, disc; 28, fourth motor; 29, partition board; 30, accommodation cavity. Detailed implementation manners

[0027] During the process of oil extraction, understanding the distribution of oil is crucial for improving the extraction efficiency and accuracy. As a tool specifically used for collecting fluid samples in underground oil and gas reservoirs, oil distribution sampling equipment plays a key role in the processes of oil and gas exploration, evaluation, and development

[0028] Composition Structure: The oil distribution sampling equipment for oil extraction usually consists of multiple key components to ensure its efficient and accurate sampling task. The following is a detailed analysis of these components: The sampling cylinder is a container for storing fluid samples and is one of the core components of the sampling equipment. It is usually made of corrosion-resistant and pressure-resistant materials to ensure that there is no leakage or damage when collecting high-pressure and high-temperature fluid samples. The design of the sampling cylinder usually includes an upper and lower double-door structure to control the inflow and sealing of the sample. This design can ensure that the sample is not contaminated by the outside world during the sampling process, while ensuring the accuracy and integrity of the sampling. The controller is one of the core components of the sampling equipment and is responsible for controlling the opening and closing time of the double doors of the sampling cylinder and the automated operation of the entire sampling process. It usually features high precision and high reliability, ensuring the accuracy and stability of the sampling process. The controller can also communicate with the ground control system to achieve remote monitoring and operation, further improving the sampling efficiency and safety. The pipe string is the part connecting the sampling cylinder and the controller and is usually composed of components such as plugs, baskets, and cones. Its main function is to ensure that the sampling cylinder can be accurately delivered to the designated position under various conditions. The valve is used to control the flow direction and speed of the fluid in the pipe string, as well as the opening and closing of the sampling cylinder. These valves are usually made of corrosion-resistant and high-temperature-resistant materials to ensure that there is no leakage or damage during long-term use. The sampling bottom valve is another key component of the sampling equipment. It can sample while ensuring the flow of the oil well, improving the sampling efficiency and success rate. The sampling bottom valve usually adopts structures such as metal balls or cutting rings and has characteristics such as high temperature resistance, corrosion resistance, and wear resistance. It can ensure that the fluid sample can smoothly enter the sampling cylinder during the sampling process and prevent external impurities from entering the sample. The connection part includes the connection between the sampling head and the main body part, as well as the connection between the sampler and the wellhead equipment. These connection parts need to be made of high-strength and corrosion-resistant materials and have good sealing performance to ensure the smooth progress of the sampling process. The design of the connection part also needs to consider the need for easy disassembly and maintenance to improve the reliability and service life of the equipment.

[0029] Working principle: The working principle of the oil distribution sampling equipment for oil extraction is relatively complex, but generally can be divided into the following steps: Lowering the sampler: First, assemble the sampler and connect it to the wellhead equipment. Then, lower the sampler to the designated depth through the control equipment. During the lowering process, it is necessary to ensure the stability and accuracy of the sampler to avoid damaging the oil well or affecting the sampling effect. Opening the double doors of the sampling cylinder: When the sampler reaches the designated depth, the controller will issue an instruction to open the double doors of the sampling cylinder. At this time, the fluid sample will start to enter the sampling cylinder. To ensure the accuracy of sampling, it is necessary to precisely control the opening time and closing time of the double doors. Collecting the sample: After the double doors of the sampling cylinder are opened, the fluid sample will flow into the sampling cylinder along the pipe string. During the collection process, the valve will control the flow direction and speed of the fluid in the pipe string to ensure that the sample can enter the sampling cylinder evenly and stably. At the same time, the sampling bottom valve will also play a key role in preventing foreign impurities from entering the sample. Closing the double doors of the sampling cylinder: When enough fluid samples are collected, the controller will issue an instruction to close the double doors of the sampling cylinder. At this time, the sample will be sealed in the sampling cylinder and wait for subsequent analysis and processing. Retrieving the sampler: Finally, retrieve the sampler to the ground through the control equipment. During the retrieval process, it is also necessary to ensure the stability and accuracy of the sampler to avoid damaging the oil well or affecting subsequent use.

[0030] Operation process: The operation process of the oil distribution sampling equipment for oil extraction is relatively cumbersome, but generally can be divided into four parts: the preparation stage, the lowering stage, the collection stage, and the recovery stage. The following is a detailed analysis of these stages: In the preparation stage, the following tasks need to be completed: Check whether all components of the sampler are intact without any damage or leakage. Assemble the sampler and connect it to the wellhead equipment to ensure that the connection part is firm and reliable. Set the closing time of the double doors of the sampling cylinder and other relevant parameters to ensure the accuracy and stability of sampling. In the lowering stage, the following tasks need to be completed: Lower the sampler to the specified depth through the control equipment. During the lowering process, closely monitor the stability and accuracy of the sampler. Adjust the position and angle of the sampler to ensure that the sampling cylinder can accurately collect the fluid sample in the target reservoir. In the collection stage, the following tasks need to be completed: Open the double doors of the sampling cylinder to allow the fluid sample to enter the sampling cylinder. At this time, closely monitor the pressure and temperature changes in the sampling cylinder to ensure the safety of sampling. Control the flow direction and speed of the fluid in the pipe string to ensure that the sample can enter the sampling cylinder evenly and stably. At the same time, closely monitor the working status of the sampling bottom valve to prevent foreign impurities from entering the sample. In the recovery stage, the following tasks need to be completed: When enough fluid samples are collected, close the double doors of the sampling cylinder and recover the sampler to the ground. During the recovery process, also closely monitor the stability and accuracy of the sampler. Disassemble the sampler and take out the sample for subsequent analysis and processing. During the disassembly process, pay attention to protecting the integrity of the sample to avoid contamination or damage to the sample.

[0031] The oil distribution sampling equipment for oil extraction plays an important role in the process of oil and gas exploration, evaluation, and development. In the oil and gas exploration stage, the oil distribution sampling equipment can be used to collect fluid samples from underground oil and gas reservoirs. These samples can be sent to the laboratory for analysis to obtain key information such as the properties, composition, and content of reservoir fluids. This information is of great significance for determining the existence, scale, and production potential of oil and gas reservoirs. In the oil and gas evaluation stage, the oil distribution sampling equipment can be used to further evaluate known oil and gas reservoirs. By collecting fluid samples at different depths and positions and analyzing their properties, composition, and content, a comprehensive understanding of the reservoir characteristics, fluid properties, and production conditions of the oil and gas reservoir can be obtained. This information is of great significance for formulating a reasonable production plan and improving production efficiency. In the oil and gas development stage, the oil distribution sampling equipment can be used to monitor the development dynamics and fluid changes of oil and gas reservoirs. By regularly collecting fluid samples and analyzing them, the changes in the production progress, remaining reserves, and fluid properties of the oil and gas reservoir can be understood. This information has important guiding significance for adjusting the production plan, optimizing production parameters, and increasing the recovery rate.

[0032] The oil distribution sampling equipment for oil exploitation has a variety of technical characteristics, which enable it to play an important role in the complex processes of oil and gas exploration, evaluation and development. The oil distribution sampling equipment adopts a high-precision controller and a sampling cylinder design, which can ensure the accuracy and stability of sampling. By precisely controlling factors such as the opening and closing time of the double doors of the sampling cylinder and the flow direction and speed of the fluid in the pipe string, the precise collection and analysis of fluid samples can be achieved. Key components such as the sampling cylinder and the pipe string are usually made of corrosion-resistant and pressure-resistant materials to ensure that there is no leakage or damage when collecting high-pressure and high-temperature fluid samples. These materials have good chemical stability and mechanical strength and can withstand the working pressure and temperature changes under extreme conditions. The oil distribution sampling equipment usually adopts an automated operation mode, which can greatly improve the sampling efficiency and safety. By realizing remote monitoring and operation through the controller, the risk of manual intervention and misoperation can be reduced, and at the same time, the accuracy and stability of sampling can be improved. The connection part of the oil distribution sampling equipment usually adopts a design method that is easy to disassemble and repair, which can facilitate daily maintenance and troubleshooting. This design method can extend the service life of the equipment and reduce the maintenance cost. The oil distribution sampling equipment is applicable to different types of oil and gas reservoirs and exploitation conditions. Whether it is an onshore oilfield or an offshore oilfield, whether it is under high-pressure and high-temperature conditions or low-pressure and low-temperature conditions, this equipment can be used for sampling and analysis. This wide applicability makes it one of the indispensable tools in the processes of oil and gas exploration, evaluation and development.

[0033] Composition Structure of Specific Oil Distribution Sampler: The sampler mainly consists of a sampling mechanism, a support mechanism, and a connection part. The sampling mechanism includes components such as a cross plate, an electric hoist, a steel cable, a hanging ring, a ring thread, a drill bit, an electric motor, a sliding plate, a support plate, a transmission rod, a rotating rod, a sampling cylinder, and a drilling port; the support mechanism includes components such as a vertical cylinder, a tapered rod, an upper through hole, a nut, a thread, and a lower through hole; the connection part includes the connection between the sampling head and the main body part, as well as the connection between the sampler and the wellhead equipment, etc. The working principle of this sampler is as follows: First, lower the sampling mechanism to the specified depth through the electric hoist and the steel cable; then, start the electric motor to drive the transmission rod and the rotating rod to rotate, and then drive the sampling cylinder and the drill bit to rotate and drill into the formation; during the drilling process, the ring thread plays a role in cutting and stabilizing; when the sampling cylinder drills to the predetermined depth, turn off the electric motor and stop drilling; finally, control the opening and closing time of the double doors of the sampling cylinder through the controller to collect fluid samples. After the collection is completed, recover the sampler to the ground and take out the samples for subsequent analysis. This sampler has the following technical characteristics: First, high-precision sampling: Precise collection and analysis of fluid samples can be achieved by precisely controlling factors such as the opening and closing time of the double doors of the sampling cylinder and the rotation speed of the electric motor; Second, corrosion and pressure resistance: Key components such as the sampling cylinder and the drill bit are made of corrosion-resistant and pressure-resistant materials, suitable for high-pressure and high-temperature oil and gas reservoirs; Third, automatic operation: Remote monitoring and operation are realized through the electric motor and the controller, improving the sampling efficiency and safety; Fourth, easy to maintain: The connection part is designed to be easily disassembled and repaired, reducing the maintenance cost; Fifth, wide application range: Suitable for different types of oil and gas reservoirs and complex mining conditions.

[0034] With the progress of technology and the continuous development of oil and gas exploration and development technologies, oil distribution sampling equipment is also constantly improving and perfecting. With the continuous development of technologies such as the Internet of Things, big data, and artificial intelligence, oil distribution sampling equipment will gradually become intelligent. By integrating sensors, data acquisition modules, and intelligent analysis software, etc., real-time monitoring, data analysis, and remote operation of the sampling process can be achieved. This will further improve the sampling efficiency and accuracy, and reduce the risks of manual intervention and misoperation. To meet the requirements of different oil and gas reservoirs and production conditions, oil distribution sampling equipment will gradually adopt diversified designs. For example, for high-pressure and high-temperature conditions, sampling cylinders and drill bits with special materials and structural designs can be used; for extreme environments such as deep sea or polar regions, special materials with corrosion resistance, low-temperature resistance, or high-pressure resistance can be adopted. This will make the sampling equipment more adaptable to the requirements of different environments and conditions. With the intensification of the energy crisis and the improvement of environmental awareness, oil distribution sampling equipment will gradually focus on energy efficiency and conservation. By optimizing the structural design, using energy-saving materials, and reducing energy consumption, etc., the operating costs and energy consumption of the equipment can be reduced. At the same time, renewable energy or recycling technologies can also be adopted to further improve the energy efficiency and environmental performance of the equipment. With the development of remote monitoring and maintenance technologies, oil distribution sampling equipment will gradually achieve remote monitoring and maintenance. By integrating remote communication modules and fault diagnosis software, etc., real-time monitoring, fault diagnosis, and remote maintenance of the equipment can be achieved. This will reduce the maintenance costs and downtime of the equipment, and improve the reliability and service life of the equipment.

[0035] The oil distribution sampling equipment for oil production is one of the indispensable tools in the processes of oil and gas exploration, evaluation, and development. Through the analysis of the existing structural overview, we can obtain information about its composition structure, working principle, operation process, application scenarios, and technical characteristics, etc. With the progress of technology and the continuous development of oil and gas exploration and development technologies, oil distribution sampling equipment will gradually show development trends such as intelligence, diversified design, energy efficiency and conservation, and remote monitoring and maintenance. This will provide more accurate, efficient, and reliable sampling means and technical support for oil and gas exploration, evaluation, and development.

[0036] However, we also need to note the problems and challenges that may exist during the use of oil distribution sampling equipment. For example, the stability and accuracy of the equipment may be affected by environmental conditions and operation methods; the maintenance costs and energy consumption of the equipment may also be one of the factors restricting its application and development. Therefore, we need to continuously strengthen the research and development efforts on oil distribution sampling equipment, improve its performance and reliability, and reduce its maintenance costs and energy consumption to meet the requirements and challenges of oil and gas exploration, evaluation, and development.

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Refer to Figures 1-8 As shown, this embodiment provides an oil distribution sampling device for oil extraction, including a mounting plate 1. A driving component is arranged inside the mounting plate 1. The driving component is drivingly connected to a cross bar 4. The cross bar 4 is slidably connected to the inner wall of the mounting plate 1. A moving block 3 is slidably connected to the cross bar 4. A collecting box 5 is fixedly connected to the bottom surface of the moving block 3. The bottom surface of the collecting box 5 is fixedly connected and communicated with a sampling box 6. A number of groups of sampling components are symmetrically arranged on the sampling box 6. A hollow cylinder 18 is fixedly installed inside the sampling box 6. A material transporting box 23 is slidably connected inside the hollow cylinder 18. The material transporting box 23 is used for holding the samples in the sampling components.

[0040] During use, the device is placed into a pre-dug oil well. Through the combination of the mounting plate 1, the driving component, the cross bar 4, the moving block 3, the collecting box 5, and the sampling box 6, flexible sampling of the oil distribution is achieved. In the present invention, through the sliding connection between the driving component and the moving block 3, flexible movement in a two-dimensional plane is realized, which can cover a wider sampling area; the design of multiple sampling components and the material transporting box 23 can collect samples at multiple positions simultaneously, improving the sampling efficiency; by precisely controlling the movement of the moving block 3 and the material transporting box 23, as well as the drilling depth of the drill rod 7, the accuracy of sampling can be ensured; the overall structural design of the device is reasonable, ensuring the stability of the operation process.

[0041] For a further optimized solution, the driving component includes a first motor 11. A cavity 12 is provided inside the mounting plate 1. The first motor 11 is located inside the cavity 12. The output shaft of the first motor 11 is fixedly connected to a first gear 10. The first gear 10 meshes with an annular gear 9. The annular gear 9 is located inside the cavity 12 and is slidably connected to the cavity 12. The inner wall of the annular gear 9 is fixedly connected to the cross bar 4. The transmission system of the first motor 11, the first gear 10, and the annular gear 9 provides the rotational and linear movement capabilities of the cross bar 4, enabling the sampling device to move smoothly and precisely inside the mounting plate 1, improving the accuracy and efficiency of sampling.

[0042] For a further optimized solution, the sampling assembly includes a box body 20 fixedly connected to the outer wall of the hollow cylinder 18. An elevating assembly is installed inside the box body 20. The elevating assembly is fixedly connected to a connecting plate 21. The connecting plate 21 extends outside the box body 20. A third motor 22 is fixedly connected to the bottom surface of the connecting plate 21. A drill rod 7 is fixedly connected to the output shaft of the third motor 22. An aggregate plate 8 is provided below the drill rod 7. The aggregate plate 8 is fixedly connected to the elevating assembly. A conveyor belt is installed inside the aggregate plate 8. The samples in the aggregate plate 8 are fed into a material transport box 23. The design of the sampling assembly, especially the combination of the elevating assembly, the third motor 22, the drill rod 7, the aggregate plate 8, and the conveyor belt, enables the device to penetrate deep into the formation for sampling and quickly transport the samples to the material transport box 23. This design improves the sampling depth and efficiency.

[0043] For a further optimized solution, the elevating assembly includes a hydraulic rod 24 fixedly connected to the inner bottom surface of the box body 20. The output end of the hydraulic rod 24 is fixedly connected to the bottom surface of the aggregate plate 8. A connecting rod 25 is fixedly connected between the aggregate plate 8 and the connecting plate 21. As the core component of the elevating assembly, the hydraulic rod 24 provides stable lifting power, ensuring the smooth movement of the drill rod 7 and the aggregate plate 8. The connecting rod 25 enhances the structural strength between the aggregate plate 8 and the connecting plate 21, improving the overall stability and durability.

[0044] For a further optimized solution, a travel groove 26 is formed on the box body 20. Both the connecting plate 21 and the aggregate plate 8 pass through the travel groove 26 and are slidably connected to the travel groove 26. The design of the travel groove 26 allows the connecting plate 21 and the aggregate plate 8 to slide smoothly inside the box body 20 without being hindered. This ensures the stability and accuracy of the sampling assembly during the sampling process.

[0045] For a further optimized solution, a fourth motor 28 is fixedly connected inside the material transport box 23. A disk 27 is fixedly connected to the output shaft of the fourth motor 28. A plurality of partition plates 29 are fixedly connected circumferentially inside the disk 27. The plurality of partition plates 29 divide the disk 27 into a plurality of receiving cavities 30 for holding samples. The combination of the fourth motor 28, the disk 27, and the partition plates 29 inside the material transport box 23 provides an efficient sample storage and classification system. The multiple receiving cavities 30 can store samples from different sampling points respectively, avoiding sample confusion and contamination.

[0046] For a further optimized solution, one end of a steel wire rope 19 is fixedly connected to the top surface of the material transport box 23. The other end of the steel wire rope 19 is fixedly connected to a winding device. The winding device is fixedly installed inside a collection box 5. An opening adapted to the material transport box 23 is formed on the bottom surface of the collection box 5. The combination of the steel wire rope 19 and the winding device allows the material transport box 23 to move up and down inside the collection box 5, facilitating sample collection and transfer. This design simplifies the sampling process and reduces the complexity and labor intensity of manual operation.

[0047] For a further optimized solution, a second motor 14 is fixedly connected inside the moving block 3. The output shaft of the second motor 14 is fixedly connected with a second gear 13. A groove is provided on the cross bar 4, and a toothed plate 15 is fixedly connected inside the groove. The second gear 13 extends into the groove and meshes with the toothed plate 15. The combination of the second motor 14, the second gear 13, and the toothed plate 15 provides the ability for the moving block 3 to move precisely on the cross bar 4. This design enables the sampling device to slide smoothly and precisely on the cross bar 4, further improving the accuracy and efficiency of sampling.

[0048] For a further optimized solution, limiting grooves 17 are symmetrically formed on both sides of the cross bar 4. The limiting grooves 17 are perpendicular to the groove along the axial direction of the cross bar 4. Limiting bars 16 are symmetrically and fixedly connected inside the moving block 3. The limiting bars 16 extend into the limiting grooves 17 and are slidably connected with the limiting grooves 17. The design of the limiting grooves 17 and the limiting bars 16 ensures the stable sliding of the moving block 3 on the cross bar 4, preventing deviation or shaking during the moving process. This improves the overall stability and safety of the device.

[0049] For a further optimized solution, a plurality of ground plugs 2 are fixedly connected to the bottom surface of the mounting plate 1. The design of the ground plugs 2 increases the stability of the device, especially when working on uneven or soft ground. This ensures that the sampling device will not tip over or shift during operation, thereby improving the accuracy and safety of sampling.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0051] The embodiments described above are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A petroleum distribution sampling device for oil mining, characterized in that: The invention comprises a mounting plate (1), wherein a driving assembly is arranged inside the mounting plate (1), wherein the driving assembly is connected to a cross bar (4) in a transmission manner, wherein the cross bar (4) is slidably connected to the inner wall of the mounting plate (1), wherein a moving block (3) is slidably connected to the cross bar (4), wherein a collecting box (5) is fixedly connected to the bottom surface of the moving block (3), wherein the bottom surface of the collecting box (5) is fixedly connected to and connected to a sampling box (6), wherein a plurality of groups of sampling assemblies are symmetrically arranged on the sampling box (6), wherein a hollow cylinder (18) is fixedly installed inside the sampling box (6), wherein a material transport box (23) is slidably connected inside the hollow cylinder (18), and wherein the material transport box (23) is used to hold samples in the sampling assembly.

2. The oil distribution sampling device for oil mining according to claim 1 is characterized in that: The driving assembly comprises a first motor (11), a cavity (12) is provided in the mounting plate (1), the first motor (11) is located in the cavity (12), the output shaft of the first motor (11) is fixedly connected with a first gear (10), the first gear (10) is meshed with a ring gear (9), the ring gear (9) is located in the cavity (12) and is slidably connected to the cavity (12), and the inner wall of the ring gear (9) is fixedly connected to the cross bar (4).

3. The oil distribution sampling device for oil mining according to claim 1 is characterized in that: The sampling assembly comprises a box body (20) fixedly connected to the outer wall of the hollow cylinder (18), a lifting assembly is installed in the box body (20), the lifting assembly is fixedly connected to a connecting plate (21), the connecting plate (21) extends out of the box body (20), a third motor (22) is fixedly connected to the bottom surface of the connecting plate (21), the output shaft of the third motor (22) is fixedly connected to a drill rod (7), a collecting plate (8) is provided below the drill rod (7), the collecting plate (8) is fixedly connected to the lifting assembly, a conveyor belt is installed in the collecting plate (8), and the sample in the collecting plate (8) is sent into the material transport box (23).

4. The oil distribution sampling device for oil mining according to claim 3 is characterized in that: The lifting assembly comprises a hydraulic rod (24) fixedly connected to the inner bottom surface of the box body (20), the output end of the hydraulic rod (24) is fixedly connected to the bottom surface of the collecting plate (8), and a connecting rod (25) is fixedly connected between the collecting plate (8) and the connecting plate (21).

5. The oil distribution sampling device for oil mining according to claim 4 is characterized in that: The box body (20) is provided with a travel groove (26), and the connecting plate (21) and the collecting plate (8) both pass through the travel groove (26) and are slidably connected to the travel groove (26).

6. The oil distribution sampling device for oil mining according to claim 1, characterized in that: A fourth motor (28) is fixedly connected inside the material transport box (23), and a disc (27) is fixedly connected to the output shaft of the fourth motor (28). A plurality of partitions (29) are fixedly connected to the inner circumference of the disc (27), and the plurality of partitions (29) divide the disc (27) into a plurality of accommodating cavities (30), and the accommodating cavities (30) are used to hold samples.

7. The oil distribution sampling device for oil mining according to claim 1, characterized in that: One end of a steel wire rope (19) is fixedly connected to the top surface of the material transport box (23), and the other end of the steel wire rope (19) is fixedly connected to a winding device. The winding device is fixedly installed in the collection box (5), and the bottom surface of the collection box (5) is provided with an opening that is compatible with the material transport box (23).

8. The oil distribution sampling device for oil mining according to claim 1, characterized in that: A second motor (14) is fixedly connected inside the moving block (3), an output shaft of the second motor (14) is fixedly connected to a second gear (13), a groove is provided on the cross bar (4), a toothed plate (15) is fixedly connected inside the groove, and the second gear (13) extends into the groove and meshes with the toothed plate (15).

9. The oil distribution sampling device for oil mining according to claim 8, characterized in that: The cross bar (4) has symmetrically disposed limit grooves (17) on both sides, the limit grooves (17) and the grooves are arranged perpendicularly along the axis of the cross bar (4), the moving block (3) has symmetrically fixed limit strips (16), the limit strips (16) extend into the limit grooves (17) and are slidably connected to the limit grooves (17).

10. The oil distribution sampling device for oil mining according to claim 1, characterized in that: A plurality of ground plugs (2) are fixedly connected to the bottom surface of the mounting plate (1).

Images