Crude oil sampling barrel

Abstract

The utility model relates to a crude oil sampling barrel. The crude oil sampling barrel comprises a lower barrel body and an upper cover body matched with the lower barrel body, the upper cover body is plugged at the barrel opening of the lower barrel body and is used for sealing the crude oil sampling barrel; a magnetic attraction part which can be attracted by a magnet is arranged on the upper cover body, so that the upper cover body can be attracted by a magnetic attraction type manipulator and then can be buckled and opened through plugging and unplugging; when batch crude oil sampling barrels enter a laboratory, a magnetic attraction type manipulator arranged on the automatic measurement assembly line can pull out an upper cover body from a barrel opening of a lower barrel body by means of a magnetic attraction part on the upper cover body, and after detection is finished, the magnetic attraction type manipulator can plug the upper cover body back to the barrel opening of the lower barrel body through the magnetic attraction part. The uncovering and covering of the crude oil sampling barrel can be realized by the manipulator only through two times of simple plugging actions, and the operation is fast and convenient, so that the problems that the uncovering manipulator of an automatic measuring system required by the screwing opening mode of the existing crude oil sampling barrel is complicated in structure and relatively high in cost are solved.

Description

Technical Field

[0001] The utility model relates to the field of sampling devices, in particular to an oil sampling bucket. Background Art

[0002] In the oil production work of oil fields, it is often necessary to use an oil sampling cylinder to take oil samples at the wellhead on site, and then send the oil samples to the laboratory to measure the water content of the crude oil; the staff needs to first tighten the screw cap of the sampled sampling cylinder, and then label each sampling cylinder with the wellhead and other relevant information to be collected, and then send the batch of sampling cylinders to the laboratory for the measurement of the water content of the crude oil; after receiving the batch of sampling cylinders, the laboratory staff need to open them one by one, read the labels one by one, and after the measurement, they also need to close the sampling cylinders one by one and input the information one by one.

[0003] Since the cap body and the cylinder body of the sampling cylinder are connected by a screw connection, it is very inconvenient for the laboratory staff to manually twist the cap body for disassembly; moreover, in the process of promoting automated measurement, this connection method also requires the manipulator responsible for opening and closing the cap to be able to clamp the upper cap and move up and down while rotating to achieve opening and closing the cap, which results in a complex structure of the manipulator and an increase in manufacturing cost; at the same time, the staff also needs to repeatedly check the information of a large number of sampling cylinders, which affects the work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide an oil sampling bucket to solve the problems of the complex structure and high cost of the cap-opening manipulator of the existing automated measurement system for the screw-connected opening method of the oil sampling cylinder.

[0005] An oil sampling bucket of the utility model includes a lower barrel body and an upper cover body. The upper cover body has a plug structure for inserting and plugging at the barrel mouth of the lower barrel body to seal the oil sampling bucket. A magnetic attraction component that can be adsorbed by a magnet is arranged on the upper cover body so that the upper cover body can be adsorbed by a magnetic adsorption manipulator and the cap can be fastened and opened by plugging and unplugging.

[0006] Further, the upper cover body includes a rubber cover body. The magnetic attraction component is inside the rubber cover body. The outer periphery of the rubber cover body is a stepped structure with a smaller lower part and a larger upper part. The small-diameter section at the lower side constitutes the plug structure.

[0007] Further, an annular sealing lip is provided at the lower part of the small-diameter section of the rubber cover body.

[0008] Further, the rubber cover body is an oil-resistant rubber cover body.

[0009] Further, the magnetic attraction component is a circular plate structure and is coaxially arranged with the central axis of the upper cover body.

[0010] Further, an RFID radio frequency chip that can be recognized by the outside world is provided on the upper cover body.

[0011] Further, the magnetic attraction component is a circular steel sheet, an avoidance hole is formed in the circular steel sheet, and the RFID radio frequency chip is arranged at a position corresponding to the avoidance hole on the rubber cover body.

[0012] Further, the avoidance hole is arranged at the central position of the circular steel sheet.

[0013] Further, the RFID radio frequency chip is located inside the avoidance hole and on the same horizontal plane as the circular steel sheet.

[0014] The utility model provides a brand-new crude oil sampling bucket. A crude oil sampling bucket applying the utility model comprises a lower barrel body and an upper cover body. The upper cover body has a plugging structure for plugging at the barrel mouth of the lower barrel body to seal the crude oil sampling bucket. A magnetic attraction component that can be adsorbed by a magnet is arranged on the upper cover body so that the upper cover body can be adsorbed by a magnetic adsorption type manipulator and the buckling cover and the opening of the cover can be realized through plugging and unplugging; when a batch of crude oil sampling buckets enter the laboratory, the magnetic adsorption type manipulator arranged on the automatic measurement production line can pull out the upper cover body from the barrel mouth of the lower barrel body by means of the magnetic attraction component on the upper cover body. After the detection is completed, the magnetic adsorption type manipulator can plug the upper cover body back into the barrel mouth of the lower barrel body through the magnetic attraction component again. The manipulator only needs to perform two simple plugging and unplugging actions to realize the opening and buckling of the cover of the crude oil sampling bucket, which is fast and convenient, thus completely solving the problems that the opening manipulator structure of the existing automatic measurement system required by the screwing opening method of the crude oil sampling cylinder is complex and the cost is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an embodiment of a crude oil sampling bucket (the upper cover body part is sectioned);

[0016] Figure 2 It is a top view of the upper cover body of an embodiment of a crude oil sampling bucket;

[0017] Figure 3 It is a sectional view of the upper cover body of an embodiment of a crude oil sampling bucket;

[0018] Figure 4 It is a top view of the lower barrel body of an embodiment of a crude oil sampling bucket;

[0019] Figure 5 It is a schematic structural diagram of the lower barrel body of an embodiment of a crude oil sampling bucket;

[0020] Figure 6 It is a schematic structural diagram of the circular steel sheet of an embodiment of a crude oil sampling bucket.

[0021] In the figure: 1. Upper cover body; 2. Lower barrel body; 11. Circular steel sheet; 12. RFID radio frequency chip; 13. Annular sealing lip; 14. Small-diameter section; 15. Avoidance hole; 16. Rubber cover body. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] The present invention provides a crude oil sampling barrel, as Figures 1 to 5 shown. In one embodiment, the crude oil sampling barrel includes a lower barrel body 2 and a matching upper cover body 1; the upper cover body 1 is inserted and plugged at the barrel opening of the lower barrel body 2 to achieve the sealing of the crude oil sampling barrel. A magnetic adsorption component that can be adsorbed by a magnet is provided on the upper cover body 1 so that the upper cover body 1 can be adsorbed by a magnetic adsorption type manipulator and the cover can be buckled and opened by plugging and unplugging; when a batch of crude oil sampling barrels enter the laboratory, the magnetic adsorption type manipulator arranged on the automatic measurement production line can pull out the upper cover body 1 from the barrel opening of the lower barrel body 2 by means of the magnetic adsorption component on the upper cover body 1. When the detection is completed, the magnetic adsorption type manipulator can plug the upper cover body 1 back into the barrel opening of the lower barrel body 2 through the magnetic adsorption component again. The manipulator only needs to perform two simple plugging and unplugging actions to open and close the cover of the crude oil sampling barrel, which is fast and convenient, thus completely solving the problem that the opening manipulator structure of the existing automatic measurement system required for the screw connection opening method of the crude oil sampling barrel is complex and the cost is high.

[0024] Based on the above design concept, in one embodiment, the upper cover body 1 is a metal cover body, and the top cover plate of the metal cover body constitutes the magnetic adsorption component. Using a metal cover body can be better sensed by the magnetic adsorption type manipulator, and then the opening and closing operations can be better performed; however, in actual use, the upper cover body 1 is very easy to collide with the barrel opening of the lower barrel body 2, so that the part of the metal cover body inserted and plugged with the barrel opening is deformed or sunken, ultimately affecting the sealing performance of the crude oil sampling barrel.

[0025] Therefore, in another embodiment, as Figure 5As shown in the figure, the upper cover 1 includes a rubber cover 16. The magnetic attraction component is located inside the rubber cover 16. The outer periphery of the rubber cover 16 is a stepped structure with a smaller lower part and a larger upper part. The lower small-diameter section 14 is used to plug into the lower barrel 2 and is hermetically fitted with the inner wall of the barrel mouth. The rubber-made upper cover 1 has a certain elasticity, which can better fit the barrel mouth of the lower barrel 2, avoiding the problem that local deformation of the metal cover affects the sealing performance of the sampling barrel. In another optimized embodiment, an annular sealing lip 13 is provided at the lower part of the rubber cover 16, strengthening the tightness between the upper cover 1 and the lower barrel 2.

[0026] Based on the above design concept or embodiment, the upper cover 1 is a common rubber cover 16, which further reduces the production cost and can be applied in batches. However, after long-term use, due to the principle of similar dissolution, part of the rubber of the upper cover 1 is gradually dissolved by the crude oil splashed during work. This not only reduces the sealing performance between the upper cover 1 and the lower barrel 2 but also causes the connection between the magnetic attraction component and the upper cover 1 to become unstable and gradually loosen during the repeated opening and closing process on the production line, failing to meet the durability requirements. Therefore, to solve the above problems, another preferred embodiment is provided, that is, the rubber cover 16 is an oil-resistant rubber cover. Although the cost is increased during the initial manufacturing, it protects the external and internal structures, extends the service life, and reduces a large amount of later maintenance costs in the long run.

[0027] In one embodiment, the magnetic attraction component is square. The magnetic adsorption type manipulator set on the production line realizes the opening or closing of the upper cover 1 by means of the square magnetic attraction component. However, the upper cover 1 is usually designed to be circular. The setting of the square magnetic attraction component in the upper cover 1 may cause uneven stress, and the corners of the square magnetic attraction component may cause damage to the oil-resistant rubber cover during repeated opening and closing operations. Therefore, in one embodiment, the magnetic attraction component is a circular plate structure and is coaxially arranged with the central axis of the upper cover 1. Such a design makes the stress on the upper cover 1 more uniform.

[0028] In actual engineering, there is also a problem of difficult information entry and reading of the sampling barrel. First, the on-site working environment is very complex, and the manually pasted labels may be blurred by oil stains, etc. Second, laboratory staff also need to compare the information of a large number of sampling barrels sent one by one, with a huge workload. To truly achieve automated measurement, in one embodiment, an RFID radio frequency chip that can be recognized by the outside world is provided on the upper cover 1. Staff only need to scan it with a machine to complete the entry, and laboratory personnel can also batch scan and read it through the machine on the production line, solving the above technical problems.

[0029] Based on the above design concept, in order to facilitate the opening and closing operations of the magnetic adsorption type manipulator, the circular magnetic adsorption component is usually arranged relatively higher inside the upper cover body 1, resulting in the position of the RFID radio frequency chip being closer to the outside of the cover body. Therefore, in one embodiment, the RFID radio frequency chip is arranged on the upper surface of the upper cover body 1. The RFID radio frequency chip arranged on the upper surface is more convenient for the scanning machine on the assembly line to identify, improving the work efficiency. However, the working environment at the oil production plant is very complex, and collisions between instruments often occur. The RFID radio frequency chip arranged outside is easily damaged, and the oil stain on the site is also likely to cover the RFID radio frequency chip, affecting the subsequent identification by the scanning machine.

[0030] Therefore, in another embodiment, as Figure 3 , Figure 4 and Figure 6 shown, the magnetic adsorption component is a circular steel sheet 11. An avoidance hole 15 is opened on the circular steel sheet 11. The RFID radio frequency chip is arranged inside a rubber cover body 16 and is at a position corresponding to the avoidance hole 15. Such a layout protects the RFID radio frequency chip from external environment interference, extends the service life, and does not affect information identification at the same time.

[0031] Based on the above design concept, in one embodiment, the avoidance hole 15 is opened at an eccentric position of the circular steel sheet 11, and the RFID radio frequency chip is also arranged at the eccentric position of the rubber cover body 16 following the avoidance hole 15. Since the azimuth in the circumferential direction of the sampling bucket is not fixed when it enters the assembly line in actual engineering, when facing the scanning machine for reading the RFID radio frequency chip, the azimuth of the RFID radio frequency chips of a batch of such sampling buckets in the circumferential direction of the upper cover body 1 is uncertain, thus bringing difficulties to the reading work of the scanning machine.

[0032] To solve the above technical problems, a preferred embodiment is provided, that is, the core avoidance hole 15 is arranged at the central position of the circular steel sheet 11. Such a design ensures that no matter in which circumferential attitude the crude oil sampling bucket enters the assembly line, the relative position of the RFID radio frequency chip is fixed at the central position, ensuring the stability of machine scanning and improving the accuracy of work.

[0033] In one embodiment, in order to obtain a better signal and further reduce the electromagnetic interference of the circular steel sheet 11 on the RFID radio frequency chip, the position of the RFID radio frequency chip on the upper cover body 1 is higher than that of the circular steel sheet 11; although the sensitivity of the scanning machine is indeed improved to a certain extent, the circular steel sheet 11 cannot effectively protect the RFID radio frequency chip; for durability considerations, in another embodiment, the RFID radio frequency chip is in the avoidance hole 15 and is on the same horizontal plane as the circular steel sheet 11. Since the circular steel sheet 11 supports the inside of the upper cover body 1, the deformation of the upper cover body 1 caused by external force is greatly reduced, and the RFID radio frequency chip in the center position will not be affected by external forces, thereby protecting the RFID radio frequency chip.

[0034] The mouth of the lower barrel body 2 may be provided with an outwardly turned lip 21 to increase the strength of the mouth of the lower barrel body 2 and to prevent the mouth of the lower barrel body 2 from deforming and creating a gap with the upper cover body 1 after long-term use.

[0035] During specific use, the staff first injects the crude oil to be tested into the barrel body 2, then inserts the upper cover body 1 into the barrel mouth of the lower barrel body 2, and scans the RFID radio frequency chip 12 at the center top of the upper cover body 1, enters the corresponding information, completes the sampling, and waits for transportation; when the batch of crude oil sampling barrels is delivered to the laboratory, the staff starts the automatic measurement assembly line, and the batch of crude oil sampling barrels are read by the NFC reading device on the assembly line. The previously entered information, and the upper cover body 1 of the crude oil sampling barrel is opened by the magnetic suction manipulator, and the laboratory staff can measure the water content of the crude oil in the barrel; after the measurement is completed, the upper cover body 1 is inserted back into the barrel mouth of the lower barrel body 2 by the magnetic suction manipulator to complete the entire automatic measurement of water content.

[0036] In the description of the present invention, it should be understood that the terms "center", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore should not be understood as limiting the scope of protection of the present invention.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil sampling bucket, comprising a lower barrel body, characterized in that, It further includes an upper cover body, which has a plugging structure for plugging at the barrel mouth of the lower barrel body to seal the crude oil sampling barrel. A magnetic attraction component that can be adsorbed by a magnet is arranged on the upper cover body so that the upper cover body can be adsorbed by a magnetic adsorption manipulator and the cover can be buckled and opened by plugging and unplugging.

2. The crude oil sampling bucket according to claim 1, characterized in that, The upper cover body includes a rubber cover body. The magnetic attraction component is inside the rubber cover body. The outer periphery of the rubber cover body is a stepped structure with a smaller lower part and a larger upper part. The lower small-diameter section forms the plugging structure.

3. The crude oil sampling bucket according to claim 2, characterized in that, An annular sealing lip is provided at the lower part of the small-diameter section of the rubber cover body.

4. The crude oil sampling bucket according to claim 2, characterized in that, The rubber cover body is an oil-resistant rubber cover body.

5. The crude oil sampling bucket according to claim 2, characterized in that, The magnetic attraction component is a circular plate structure and is coaxially arranged with the central axis of the upper cover body.

6. The crude oil sampling bucket according to claim 5, wherein, An RFID radio frequency chip that can be recognized by the outside world is arranged on the upper cover body.

7. The crude oil sampling bucket according to claim 6, characterized in that, The magnetic attraction component is a circular steel sheet. An avoidance hole is opened on the circular steel sheet. The RFID radio frequency chip is arranged at a position of the rubber cover body corresponding to the avoidance hole.

8. The crude oil sampling bucket according to claim 7, wherein, The avoidance hole is arranged at the central position of the circular steel sheet.

9. The crude oil sampling bucket according to claim 8, characterized in that, The RFID radio frequency chip is inside the avoidance hole and is on the same horizontal plane as the circular steel sheet.

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