Sampling detection device based on oil exploration and development
By designing a sampling and detection device with a conical ejector block and a piston plate, the clogging problem was solved, enabling automatic cleaning of impurities and accurate sampling, avoiding sample leakage, and improving the convenience and accuracy of the sampling device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-21
AI Technical Summary
Existing sampling and detection devices are prone to clogging of the sampling port by impurities such as pebbles during operation, which makes sampling inconvenient and may lead to sample leakage, affecting ease of use.
A sampling and detection device was designed, comprising a conical sampling head, a sleeve, a sealing base, and an ejection device. The piston plate is moved by rotating the sleeve cover, and sampling is performed using the air pressure difference. When blockage occurs, the conical ejection block automatically cleans up impurities to prevent sample leakage.
It enables automatic cleaning of blockages and impurities during the sampling process, ensuring smooth sampling, improving collection accuracy, and preventing sample leakage.
Smart Images

Figure CN224535487U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of petroleum sampling devices, and relates to a sampling and detection device based on petroleum exploration and development. Background Technology
[0002] In oil development, exploration operations can promptly discover new oil reserves, locate oil and gas traps, and determine the area and reserves of oil and gas fields. Oil exploration is not only related to energy security but also has a significant impact on economic development and industrial production. Oil extracted from the ground contains a variety of substances. In order to take relevant purification measures, it is necessary to analyze the composition of the oil. At this time, it is necessary to use sampling and testing equipment to extract an appropriate amount of oil and analyze its internal components to facilitate subsequent purification and processing.
[0003] Existing sampling and testing devices may experience clogging of the sampling port by impurities such as pebbles during operation, further delaying the sampling and testing work. Moreover, the process is inconvenient to handle the clogging pebbles and other impurities, which can easily lead to sample leakage and affect the ease of use of the exploration sampling and testing device. Therefore, it is necessary to design a sampling and testing device that is clogging-resistant and can easily clean clogging pebbles and other impurities. Utility Model Content
[0004] The purpose of this invention is to provide a sampling and detection device based on petroleum exploration and development, which solves the problem of inconvenience in handling blockages and impurities during the sampling process in the existing technology.
[0005] The technical solution adopted by this utility model is a sampling and detection device based on petroleum exploration and development, including a test tube, a conical sampling head provided at one end of the test tube, a sleeve fitted on the outer side of the other end of the test tube, a sealing base fitted on the outer sleeve of the conical sampling head, a sampling port opened on the conical sampling head, an ejector device snapped into place inside the test tube near the conical sampling head, a rotating cover fitted on the outer side of one end of the sleeve, one end of a pushing device fixed on the inner wall of the rotating cover, and the other end of the pushing device located inside the sleeve.
[0006] The sampling and detection device based on petroleum exploration and development in this utility model also has the following features:
[0007] The ejection device includes a connecting plate that is snapped into the inside of the test tube. One end of a sleeve is fixed to the side of the connecting plate near the conical sampling head, and a circular plate is fixed to the other end of the sleeve. A through hole is opened on the circular plate, the diameter of which is smaller than the inner diameter of the sleeve. A spring is installed inside the sleeve, and one end of the spring is fixed to the connecting plate. The other end of the spring is fixed to one side of a movable block, the diameter of which is adapted to the inner diameter of the sleeve. One end of a movable rod is fixed to the other side of the movable block, the diameter of which is adapted to the diameter of the through hole. The other end of the movable rod extends out of the sleeve and is connected to a conical ejection block. Several connecting slots are opened on the surface of the conical ejection block, and the conical ejection block is snapped into the inner port of the conical sampling head.
[0008] The pushing device includes a threaded rod, one end of which is fixed to the inner wall of the rotating sleeve cover, and the other end of which extends into the sleeve and is connected to a piston plate. The diameter of the piston plate is adapted to the inner diameter of the sleeve.
[0009] The outer wall of the sleeve is marked with graduation lines.
[0010] The end of the test tube near the sleeve is connected to a threaded sealing cap.
[0011] A threaded sleeve is fixed on the outer wall of the test tube near the conical sampling head, and the threaded sleeve is threadedly connected to the sealing base.
[0012] The sealing base includes a base plate, a connecting sleeve fixed on one side of the base plate, a sealing gasket inside the connecting sleeve and fixed on the base plate, a sealing engagement protrusion adapted to the sampling port fixed on the sealing gasket, and threads provided on the inner wall of the connecting sleeve.
[0013] A knob is provided on the outside of the threaded sealing cover.
[0014] The edge of the rotating sleeve cover is aligned with the piston plate.
[0015] The beneficial effects of this utility model are:
[0016] This invention eliminates the negative pressure inside the sampling chamber by loosening the rotating cover, allowing the conical ejector block to expel impurities such as pebbles blocking the sampling port. This avoids the problem of sample leakage that can occur if the sampling and testing device is removed halfway through the sampling process, thus ensuring the normal operation of the sampling and testing work. Twisting the rotating cover moves the piston plate, enabling sampling and extraction. This makes the movement of the piston plate more uniform and stable, avoiding excessive extraction force and excessive sample collection. Furthermore, the alignment of the left edge of the rotating cover with the piston plate allows the position of the piston plate to be determined by the edge of the rotating cover and the scale lines, further controlling the amount of sample extracted and improving the accuracy of the sampling. Attached Figure Description
[0017] Figure 1 This is an external structural diagram of the present invention;
[0018] Figure 2 This is a diagram showing the connection structure of the ejector block in this utility model;
[0019] Figure 3 This is a diagram showing the connection structure of the sleeve in this utility model;
[0020] Figure 4 This is a connection structure diagram of the sealing base in this utility model;
[0021] Figure 5 This is a diagram of the internal structure of the test tube in this utility model.
[0022] In the diagram, 1. Sleeve, 2. Sealing base, 3. Threaded sealing cap, 4. Test tube, 5. Threaded sleeve, 6. Connecting plate, 7. Sleeve, 8. Spring, 9. Movable block, 10. Movable rod, 11. Conical ejector block, 12. Piston plate, 13. Threaded rod, 14. Rotating sleeve cap, 15. Scale line, 16. Sealing gasket, 17. Sealing engagement protrusion, 18. Base plate, 19. Connecting sleeve, 20. Connecting through groove, 21. Conical sampling head, 22. Ejection device, 23. Pushing device, 24. Through hole, 25. Circular plate, 26. Knob. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0024] Based on oil exploration and development sampling and detection devices, referring to Figure 1 The test tube 4 includes a conical sampling head 21 at one end and a sleeve 1 on the outside of the other end. A sealing base 2 is fitted over the conical sampling head 21, and a sampling port is opened on the conical sampling head 21. An ejector device 22 is snapped into the inside of the test tube 4 near the conical sampling head 21. A rotating cover 14 is fitted over one end of the sleeve 1. One end of a pushing device 23 is fixed on the inner wall of the rotating cover 14, and the other end of the pushing device 23 is located inside the sleeve 1.
[0025] Reference Figure 2The ejector device 22 includes a connecting plate 6, which is snapped into the inside of the test tube 4. One end of a sleeve 7 is fixed to the side of the connecting plate 6 near the conical sampling head 21. A circular plate 25 is fixed to the other end of the sleeve 7. A through hole 24 is provided on the circular plate 25. The diameter of the through hole 24 is smaller than the inner diameter of the sleeve 7. A spring 8 is provided inside the sleeve 7, and one end of the spring 8 is fixed to the connecting plate 6. One side of a movable block 9 is fixed to the other end of the spring 8. The diameter of the movable block 9 is adapted to the inner diameter of the sleeve 7. One end of a movable rod 10 is fixed to the other side of the movable block 9. The diameter of the movable rod 10 is adapted to the diameter of the through hole 24, and the other end of the movable rod 10 extends out of the sleeve 7. It is connected to a conical ejector block 11, and the surface of the conical ejector block 11 is provided with several connecting grooves 20. The connecting grooves 20 are used to ensure the unobstructed flow of the sampling port. The conical ejector block 11 is snapped into the inner port of the conical sampling head 21. The spring 8 can drive the movable block 9 and the movable rod 10 to reset when the negative pressure in the cavity is removed. The conical ejector block 11 can eject impurities such as stone particles to achieve automatic cleaning of blockages. Twisting the rotating sleeve cover 14 can drive the threaded rod 13 to rotate and move. The piston plate 12 can move linearly and use the air pressure difference formed in the tube space to adsorb the raw material into the interior of the test tube 4 to complete the material collection work.
[0026] Reference Figure 3 The pushing device 23 includes a threaded rod 13. One end of the threaded rod 13 is fixed to the inner wall of the rotating sleeve cover 14, and the other end of the threaded rod 13 extends into the sleeve 1 and is connected to a piston plate 12. The diameter of the piston plate 12 is adapted to the inner diameter of the sleeve 1.
[0027] Reference Figure 1 The outer wall of sleeve 1 is provided with scale line 15, for reference. Figure 4 The test tube 4 is connected to a threaded sealing cap 3 at the end near the sleeve 1. The threaded sealing cap 3 can prevent sample spillage after sampling. (Refer to...) Figure 5 A threaded sleeve 5 is fixed on the outer wall of the test tube 4 near the conical sampling head 21, and the threaded sleeve 5 is threadedly connected to the sealing base 2.
[0028] Reference Figure 4The sealing base 2 includes a base plate 18, a connecting sleeve 19 fixed on one side of the base plate 18, a sealing gasket 16 inside the connecting sleeve 19 and fixed on the base plate 18, and a sealing engagement protrusion 17 adapted to the sampling port fixed on the sealing gasket 16. When the conical sampling head 21 is installed on the sealing base 2, the sealing engagement protrusion 17 can squeeze the conical ejector block 11 into the interior of the test tube 4. The inner wall of the connecting sleeve 19 is provided with threads, and the connecting sleeve 19 can be connected to the threaded sleeve 5 through the threads. A knob 26 is provided on the outside of the threaded sealing cover 3. The threaded sealing cover 3 can be opened by turning the knob 26. The edge of the rotating sleeve cover 14 is aligned with the piston plate 12. The position of the piston plate 12 can be determined by rotating the edge of the sleeve cover 14 and the scale line 15. The test tube 4 is threadedly connected to the sleeve 1, which can realize quick disassembly and assembly operations.
[0029] The working principle of this utility model:
[0030] During operation, test tube 4 is installed onto sleeve 1, and the sealing base 2 and threaded sealing cap 3 are unscrewed. The sampling port is slightly submerged in the material to be collected. By rotating the sleeve cap 14, the threaded rod 13 is rotated and moved upward, causing the piston plate 12 to move linearly. The pressure difference formed in the tube space is used to adsorb the raw material into the interior of test tube 4, completing the material collection. After collecting the sample material, the sealing base 2 is fitted onto the conical sampling head 21 and threadedly connected to the threaded sleeve 5. At the same time, the sealing engagement protrusion 17 is engaged in the sampling port to further facilitate rotation. Separate the test tube 4 from the sleeve 1 and tighten the threaded sealing cap 3 to seal the test tube 4 to prevent sample spillage. When impurities such as pebbles block the sampling port, the pebbles will push the conical ejector block 11 into the interior of the test tube 4, creating a negative pressure inside the test tube 4. At this time, the negative pressure inside the chamber can be canceled by slightly loosening and rotating the sleeve cap 14, further reducing the squeezing force of the pebbles and other impurities inward. The spring 8 drives the movable block 9 and the movable rod 10 to reset, allowing the conical ejector block 11 to eject the pebbles and other impurities, thus achieving automatic clearing of blockages.
[0031] Example 1:
[0032] The sampling and testing device based on oil exploration and development includes a test tube 4, a conical sampling head 21 at one end of the test tube 4, a sleeve 1 on the outer side of the other end of the test tube 4, a sealing base 2 on the outer sleeve of the conical sampling head 21, a sampling port on the conical sampling head 21, an ejector 22 snapped into the inside of the test tube 4 near the conical sampling head 21, a rotating sleeve 14 on the outer side of one end of the sleeve 14, a pushing device 23 fixed on the inner wall of the rotating sleeve 14, the other end of the pushing device 23 located inside the sleeve 1, a threaded sealing cap 3 connected to the end of the test tube 4 near the sleeve 1, a threaded sleeve 5 fixed on the outer wall of the test tube 4 near the conical sampling head 21, the threaded sleeve 5 being threadedly connected to the sealing base 2, and a knob 26 on the outer side of the threaded sealing cap 3.
[0033] Example 2:
[0034] The sampling and testing device based on oil exploration and development includes a test tube 4, a conical sampling head 21 at one end of the test tube 4, a sleeve 1 on the outer side of the other end of the test tube 4, a sealing base 2 on the outer sleeve of the conical sampling head 21, a sampling port on the conical sampling head 21, an ejector 22 snapped into place inside the test tube 4 near the conical sampling head 21, a rotating cover 14 on the outer side of one end of the sleeve 1, one end of a pushing device 23 fixed on the inner wall of the rotating cover 14, and the other end of the pushing device 23 located inside the sleeve 1.
[0035] The ejection device 22 includes a connecting plate 6, which is snapped into the inside of the test tube 4. One end of a sleeve 7 is fixed to the side of the connecting plate 6 near the conical sampling head 21. A circular plate 25 is fixed to the other end of the sleeve 7. A through hole 24 is opened on the circular plate 25. The diameter of the through hole 24 is smaller than the inner diameter of the sleeve 7. A spring 8 is installed inside the sleeve 7, and one end of the spring 8 is fixed to the connecting plate 6. One side of a movable block 9 is fixed to the other end of the spring 8. The diameter of the movable block 9 is adapted to the inner diameter of the sleeve 7. One end of a movable rod 10 is fixed to the other side of the movable block 9. The diameter of the movable rod 10 is adapted to the diameter of the through hole 24. The other end of the movable rod 10 extends out of the sleeve 7 and is connected to a conical ejection block 11. Several connecting through grooves 20 are opened on the surface of the conical ejection block 11. The conical ejection block 11 is snapped into the inner port of the conical sampling head 21. A threaded sleeve 5 is fixed on the outer wall of the test tube 4 near the conical sampling head 21. The threaded sleeve 5 is threadedly connected to the sealing base 2.
[0036] The sealing base 2 includes a base plate 18, a connecting sleeve 19 fixed on one side of the base plate 18, a sealing gasket 16 provided inside the connecting sleeve 19 and the sealing gasket 16 fixed on the base plate 18, a sealing engagement protrusion 17 adapted to the sampling port fixed on the sealing gasket 16, and threads provided on the inner wall of the connecting sleeve 19.
[0037] Example 3:
[0038] The sampling and testing device based on oil exploration and development includes a test tube 4, a conical sampling head 21 at one end of the test tube 4, a sleeve 1 on the outer side of the other end of the test tube 4, a sealing base 2 on the outer sleeve of the conical sampling head 21, a sampling port on the conical sampling head 21, an ejector 22 snapped into place inside the test tube 4 near the conical sampling head 21, a rotating cover 14 on the outer side of one end of the sleeve 1, one end of a pushing device 23 fixed on the inner wall of the rotating cover 14, and the other end of the pushing device 23 located inside the sleeve 1.
[0039] The pushing device 23 includes a threaded rod 13. One end of the threaded rod 13 is fixed to the inner wall of the rotating sleeve cover 14. The other end of the threaded rod 13 extends into the sleeve 1 and is connected to a piston plate 12. The diameter of the piston plate 12 is adapted to the inner diameter of the sleeve 1. A scale line 15 is provided on the outer wall of the sleeve 1. A threaded sealing cap 3 is connected to the end of the test tube 4 near the sleeve 1. The edge of the rotating sleeve cover 14 is aligned with the piston plate 12.
[0040] Example 4:
[0041] The sampling and testing device based on oil exploration and development includes a test tube 4, a conical sampling head 21 at one end of the test tube 4, a sleeve 1 on the outer side of the other end of the test tube 4, a sealing base 2 on the outer sleeve of the conical sampling head 21, a sampling port on the conical sampling head 21, an ejector 22 snapped into place inside the test tube 4 near the conical sampling head 21, a rotating cover 14 on the outer side of one end of the sleeve 1, one end of a pushing device 23 fixed on the inner wall of the rotating cover 14, and the other end of the pushing device 23 located inside the sleeve 1.
[0042] The ejection device 22 includes a connecting plate 6, which is snapped into the inside of the test tube 4. One end of a sleeve 7 is fixed to the side of the connecting plate 6 near the conical sampling head 21. A circular plate 25 is fixed to the other end of the sleeve 7. A through hole 24 is opened on the circular plate 25. The diameter of the through hole 24 is smaller than the inner diameter of the sleeve 7. A spring 8 is installed inside the sleeve 7, and one end of the spring 8 is fixed to the connecting plate 6. One side of a movable block 9 is fixed to the other end of the spring 8. The diameter of the movable block 9 is adapted to the inner diameter of the sleeve 7. One end of a movable rod 10 is fixed to the other side of the movable block 9. The diameter of the movable rod 10 is adapted to the diameter of the through hole 24. The other end of the movable rod 10 extends out of the sleeve 7 and is connected to a conical ejection block 11. Several connecting through grooves 20 are opened on the surface of the conical ejection block 11. The conical ejection block 11 is snapped into the inner port of the conical sampling head 21.
[0043] The pushing device 23 includes a threaded rod 13. One end of the threaded rod 13 is fixed to the inner wall of the rotating sleeve cover 14, and the other end of the threaded rod 13 extends into the sleeve 1 and is connected to a piston plate 12. The diameter of the piston plate 12 is adapted to the inner diameter of the sleeve 1, and a scale line 15 is provided on the outer wall of the sleeve 1.
[0044] Example 5:
[0045] The sampling and testing device based on oil exploration and development includes a test tube 4, a conical sampling head 21 at one end of the test tube 4, a sleeve 1 on the outer side of the other end of the test tube 4, a sealing base 2 on the outer sleeve of the conical sampling head 21, a sampling port on the conical sampling head 21, an ejector 22 snapped into place inside the test tube 4 near the conical sampling head 21, a rotating cover 14 on the outer side of one end of the sleeve 14, a pushing device 23 fixed on the inner wall of the rotating cover 14, the other end of the pushing device 23 located inside the sleeve 1, a scale line 15 on the outer wall of the sleeve 1, a threaded sealing cover 3 connected to the end of the test tube 4 near the sleeve 1, a knob 26 on the outer side of the threaded sealing cover 3, and the edge of the rotating cover 14 aligned with the piston plate 12.
[0046] Example 6:
[0047] The sampling and testing device based on oil exploration and development includes a test tube 4, a conical sampling head 21 at one end of the test tube 4, a sleeve 1 on the outer side of the other end of the test tube 4, a sealing base 2 on the outer sleeve of the conical sampling head 21, a sampling port on the conical sampling head 21, an ejector 22 snapped into place inside the test tube 4 near the conical sampling head 21, a rotating cover 14 on the outer side of one end of the sleeve 1, one end of a pushing device 23 fixed on the inner wall of the rotating cover 14, and the other end of the pushing device 23 located inside the sleeve 1.
[0048] The ejection device 22 includes a connecting plate 6, which is snapped into the inside of the test tube 4. One end of a sleeve 7 is fixed to the side of the connecting plate 6 near the conical sampling head 21. A circular plate 25 is fixed to the other end of the sleeve 7. A through hole 24 is opened on the circular plate 25. The diameter of the through hole 24 is smaller than the inner diameter of the sleeve 7. A spring 8 is installed inside the sleeve 7, and one end of the spring 8 is fixed to the connecting plate 6. One side of a movable block 9 is fixed to the other end of the spring 8. The diameter of the movable block 9 is adapted to the inner diameter of the sleeve 7. One end of a movable rod 10 is fixed to the other side of the movable block 9. The diameter of the movable rod 10 is adapted to the diameter of the through hole 24. The other end of the movable rod 10 extends out of the sleeve 7 and is connected to a conical ejection block 11. Several connecting through grooves 20 are opened on the surface of the conical ejection block 11. The conical ejection block 11 is snapped into the inner port of the conical sampling head 21.
[0049] The outer wall of the sleeve 1 is provided with a scale line 15. The end of the test tube 4 near the sleeve 1 is connected to a threaded sealing cap 3. The outer wall of the test tube 4 near the conical sampling head 21 is fixed with a threaded sleeve 5, which is threadedly connected to the sealing base 2.
[0050] The sealing base 2 includes a base plate 18, a connecting sleeve 19 fixed on one side of the base plate 18, a sealing gasket 16 provided inside the connecting sleeve 19 and the sealing gasket 16 fixed on the base plate 18, a sealing engagement protrusion 17 adapted to the sampling port fixed on the sealing gasket 16, and threads provided on the inner wall of the connecting sleeve 19.
Claims
1. A sampling and detection device based on petroleum exploration and development, characterized in that, The test tube (4) is provided with a conical sampling head (21) at one end and a sleeve (1) on the outside of the other end of the test tube (4). A sealing base (2) is provided on the outer sleeve of the conical sampling head (21). A sampling port is provided on the conical sampling head (21). An ejector device (22) is snapped into the inside of the test tube (4) near the conical sampling head (21). A rotating sleeve cover (14) is provided on the outside of one end of the sleeve (1). One end of a pushing device (23) is fixed on the inner wall of the rotating sleeve cover (14). The other end of the pushing device (23) is located inside the sleeve (1).
2. The sampling and detection device based on petroleum exploration and development according to claim 1, characterized in that, The ejection device (22) includes a connecting plate (6), which is snapped into the inside of the test tube (4). One end of a sleeve (7) is fixed to the side of the connecting plate (6) near the conical sampling head (21). A circular plate (25) is fixed to the other end of the sleeve (7). A through hole (24) is provided on the circular plate (25). The diameter of the through hole (24) is smaller than the inner diameter of the sleeve (7). A spring (8) is provided inside the sleeve (7), and one end of the spring (8) is fixed to the connecting plate (6). One side of the other end is fixed with a movable block (9), the diameter of which is adapted to the inner diameter of the sleeve (7). The other side of the movable block (9) is fixed with one end of a movable rod (10), the diameter of which is adapted to the diameter of the through hole (24), and the other end of the movable rod (10) extends out of the sleeve (7) and is connected to a conical ejector block (11). The surface of the conical ejector block (11) is provided with several connecting through slots (20), and the conical ejector block (11) is snapped into the inner port of the conical sampling head (21).
3. The sampling and detection device based on petroleum exploration and development according to claim 1, characterized in that, The pushing device (23) includes a threaded rod (13), one end of which is fixed to the inner wall of the rotating sleeve (14), and the other end of which extends into the sleeve (1) and is connected to a piston plate (12). The diameter of the piston plate (12) is adapted to the inner diameter of the sleeve (1).
4. The sampling and detection device based on petroleum exploration and development according to claim 1, characterized in that, The outer wall of the sleeve (1) is provided with scale lines (15).
5. The sampling and detection device based on petroleum exploration and development according to claim 1, characterized in that, The test tube (4) is connected to a threaded sealing cap (3) at one end near the sleeve (1).
6. The sampling and detection device based on petroleum exploration and development according to any one of claims 1-5, characterized in that, A threaded sleeve (5) is fixed on the outer wall of the test tube (4) near the conical sampling head (21), and the threaded sleeve (5) is threadedly connected to the sealing base (2).
7. The sampling and detection device based on petroleum exploration and development according to claim 6, characterized in that, The sealing base (2) includes a base plate (18), a connecting sleeve (19) is fixed on one side of the base plate (18), a sealing gasket (16) is provided inside the connecting sleeve (19) and the sealing gasket (16) is fixed on the base plate (18), a sealing engagement protrusion (17) adapted to the sampling port is fixed on the sealing gasket (16), and a thread is provided on the inner wall of the connecting sleeve (19).
8. The sampling and detection device based on petroleum exploration and development according to claim 5, characterized in that, A knob (26) is provided on the outside of the threaded sealing cap (3).
9. The sampling and detection device based on petroleum exploration and development according to claim 4, characterized in that, The edge of the rotating sleeve (14) is aligned with the piston plate (12).