A multi-way valve for multi-well production metering

Abstract

The application discloses a multi-way valve for multi-well production metering, which comprises a multi-way valve, a back cover, a valve core, a connecting plate, a valve seat, a ball collecting pipe, a medium pipe, a metering pipe, a bend pipe, a total driving element and an inlet; wherein the multi-way valve is a cavity structure, a metering pipe is arranged at the center of one end of the multi-way valve, a back cover is arranged at the other end of the multi-way valve, a plurality of inlets are arranged at the circumference of one end of the multi-way valve, and the bend pipes are communicated with the inlets except one; the connecting plate is arranged on the inner wall of the multi-way valve close to the metering pipe, the valve core is arranged in the multi-way valve and rotates coaxially, the valve seat is arranged on the valve core, the total driving element is arranged on the side of the back cover away from the multi-way valve; the ball collecting pipe is arranged on the side wall of the multi-way valve, the medium pipe is arranged on the ball collecting pipe, and the ball collecting pipe is communicated with the cavity of the multi-way valve. The application can accurately and efficiently complete the metering operation of the production of each single well, has high metering efficiency and meets the metering precision standard.

Description

Technical Field

[0001] This invention relates to the field of wellhead conveying equipment, and more specifically to a multi-way valve for multi-well production measurement. Background Technology

[0002] In the current industrial field of multi-well media transportation and metering, the traditional method used is to configure and connect a separate valve body to each well. When it is necessary to meter the media transported from different wells in multiple wells, on-site personnel must manually operate repeatedly, constantly switching the connection status of each passage to achieve individual metering of the media transported from different wells.

[0003] Staff need to perform switching operations frequently and for extended periods, resulting in a constant state of high-intensity work. This not only affects work efficiency but may also lead to substandard measurement accuracy due to the limited response speed of manual operation, making it difficult to accurately complete the channel switching in a short time.

[0004] Throughout the metering process, regular cleaning of the valve body becomes particularly important. Existing common cleaning operations cannot successfully remove the cleaning components inside the valve body, leading to blockage of the valve passage. The cleaning components may also flow out with the conveying medium, ultimately affecting subsequent operations and damaging the valve body itself.

[0005] Therefore, a multi-way valve for multi-well production measurement is needed to solve the above-mentioned technical problems. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-way valve for multi-well production metering, comprising: a multi-way valve, a rear cover, a valve core, a connecting plate, a valve seat, a ball receiving pipe, a medium pipe, a metering pipe, a bend, a main drive component, and an inlet;

[0007] The multi-way valve has a hollow internal structure, with the metering tube located at the center of one end and the rear cover located at the other end. The multi-way valve has multiple inlets around the circumference of one end of the metering tube, and all inlets except one of the inlets are connected to the bend.

[0008] The connecting plate is provided on the inner wall of the multi-way valve near the metering tube. The valve core is coaxially rotatably arranged inside the multi-way valve. The valve seat is installed on the valve core. The main drive component is provided on the side of the rear cover away from the multi-way valve.

[0009] The ball receiving tube is provided on the side wall of the multi-way valve, and the medium tube is provided on the ball receiving tube. The ball receiving tube is connected to the internal cavity of the multi-way valve.

[0010] Furthermore, preferably, the connecting plate includes: a plate body, a central hole, and a connecting hole;

[0011] The plate is disposed on the inner wall of the multi-way valve near the metering tube, and a central hole is provided at the center of the plate. Multiple connecting holes are provided on the circumference of the plate outside the central hole.

[0012] The number of connecting holes is the same as the number of inlets, and each of the connecting holes is connected to a corresponding bend in the pipe.

[0013] Furthermore, as a preferred embodiment, the valve core includes: a core body, a mounting end, a driving end, a channel, and a mounting cavity;

[0014] The core has an installation end at one end and a driving end at the other end. The installation end is rotatably disposed in the central hole and passes through the multi-way valve and is connected to the metering tube. The driving end rotatably passes through the rear cover and is connected to the main driving component.

[0015] The core has a mounting cavity at one end near the mounting end, located on one side of the mounting end, and is recessed at the other side.

[0016] The core and the mounting end are provided with the channel, one end of the channel is connected to the mounting cavity and the other end is connected to the metering tube.

[0017] Furthermore, as a preferred embodiment, the valve seat includes: a seat body, a barrier ring, a spring seat, a receiving cavity, and a preload spring;

[0018] The spring seat has a concave structure and is disposed in the mounting cavity. The end of the spring seat near the inner wall of the mounting cavity has a plurality of receiving cavities circumferentially formed. Each receiving cavity is provided with a pre-tightening spring. One end of each pre-tightening spring is connected to the inner wall of its corresponding receiving cavity, and the other end is connected to the inner wall of the mounting cavity.

[0019] The seat body has an outward convex structure, and the outward convex part of the seat body is connected to the inward concave part of the spring seat. The end of the seat body away from the spring seat is provided with a mounting groove, and the barrier ring is provided in the mounting groove.

[0020] Furthermore, as a preferred embodiment, the valve seat further includes: a partition, a seat hole, and a spring seat hole;

[0021] The seat and the spring seat are respectively provided with a seat hole and a spring seat hole, the seat hole and the spring seat hole are coaxially connected, and the partition is installed in the seat hole;

[0022] The end of the channel near the valve seat is connected to the seat hole and the spring seat hole. The seat hole can be connected to each of the bends through the connecting holes by the rotation of the valve core.

[0023] Furthermore, preferably, the diameters of the seat hole, the spring seat hole, the bend, the metering tube, the connecting hole, the channel, and the inlet are all the same.

[0024] Furthermore, as a preferred embodiment, the medium tube includes: a square tube and a round tube;

[0025] One end of the square tube is connected to the ball receiving tube, and the other end is connected to the round tube. The end of the round tube away from the square tube is connected to an external mechanism. A springback mechanism is provided on the square tube.

[0026] Furthermore, as a preferred embodiment, the springback mechanism includes: a rotating column, a flow cavity, a springback assembly, and a secondary drive component;

[0027] The square tube is provided with the auxiliary driving component on its outer side, and two rotating columns are rotatably arranged inside the square tube. Each rotating column has multiple V-shaped flow cavities on its circumference, and multiple spring-loaded components are arranged on the outer circumference of each rotating column. The number of flow cavities and spring-loaded components is the same.

[0028] The secondary drive component includes: a mounting box and a motor;

[0029] The mounting box contains two motors, and the output shafts of the two motors are sealed through the mounting box and the square tube and connected to their corresponding rotating columns.

[0030] Furthermore, as a preferred embodiment, the rebound assembly includes: a base, a rotating shaft, a spring plate, a sliding cavity, a sliding column, a rebound spring, and an elastic layer;

[0031] The base is a plurality of bases, which are equidistantly arranged on the outer wall of the rotating column along the axial direction of the rotating column. The rotating shaft is rotatably mounted on the plurality of bases, and the elastic plate with the elastic layer is mounted on the rotating shaft.

[0032] The side of the spring plate near the outer wall of the rotating column is connected to the outer wall of the rotating column by a plurality of spring springs. Each spring spring is sleeved on a sliding column located on the outer wall of the rotating column, and each sliding column is slidably connected to a sliding cavity located on the outer wall of the rotating column.

[0033] Furthermore, as a preferred embodiment, the overall driving component includes: a power source and a turntable;

[0034] The power source output end is connected to the drive end, and the power source is equipped with the turntable.

[0035] Compared with the prior art, the present invention provides a multi-way valve for multi-well production metering, which has the following advantages:

[0036] Advantage 1: This invention can accurately and efficiently complete the metering operation of the production of each single well, reduce the workload of the staff, and achieve high metering efficiency and accuracy.

[0037] Advantage 2: When the multi-way valve needs cleaning, pigging balls are launched into the valve from each bend. During their flow, the pigging balls remove impurities from the inner wall of the multi-way valve, and the cleaned pigging balls are discharged through the collection pipe.

[0038] Advantage 3: This invention enables dynamic ejection of the pigging ball, allowing it to be smoothly discharged from the multi-way valve via the receiving pipe. Furthermore, the pigging ball will not deform and become stuck in the blocking components, nor will its structure be damaged when it collides with the blocking components due to excessive impact force. This prevents pigging ball fragments from being discharged along with the transport medium through the medium pipe.

[0039] Advantage 4: This invention can provide additional force for the pigging ball to pop out while discharging the conveying medium, which further ensures that the pigging ball will not be blocked in the multi-way valve and guarantees the smooth discharge of the pigging ball. Attached Figure Description

[0040] Figure 1 A schematic diagram of a multi-way valve structure used for multi-well production measurement;

[0041] Figure 2 A schematic diagram of the inlet structure of a multi-way valve used for multi-well production measurement;

[0042] Figure 3 A schematic diagram of a multi-way valve connection plate structure for multi-well production measurement;

[0043] Figure 4 A schematic diagram of the valve core structure of a multi-way valve used for multi-well production measurement;

[0044] Figure 5 A schematic diagram of a multi-way valve seat structure for multi-well production measurement;

[0045] Figure 6 A schematic diagram of a multi-way valve medium pipe structure for multi-well production measurement;

[0046] Figure 7 A schematic diagram of a multi-way valve rebound mechanism for multi-well production measurement;

[0047] Figure 8 This describes the operating status of a multi-way valve rebound mechanism used for multi-well production measurement. Figure 1 ;

[0048] Figure 9 This describes the operating status of a multi-way valve rebound mechanism used for multi-well production measurement. Figure 2 ;

[0049] Figure 10 This describes the operating status of a multi-way valve rebound mechanism used for multi-well production measurement. Figure 3 ;

[0050] In the diagram: 1. Multi-way valve; 2. Rear cover; 3. Valve core; 31. Core body; 32. Mounting end; 33. Drive end; 34. Channel; 35. Mounting cavity; 4. Connecting plate; 41. Plate body; 42. Center hole; 43. Connecting hole; 5. Valve seat; 51. Seat body; 52. Barrier ring; 53. Spring seat; 54. Receiving cavity; 55. Preload spring; 56. Partition; 57. Seat body hole; 58. Spring seat hole; 6. Ball receiving tube; 7. Medium tube; 71. Square tube; 7 2. Circular tube; 8. Rebound mechanism; 81. Rotating column; 82. Flow cavity; 83. Rebound assembly; 831. Base; 832. Rotating shaft; 833. Spring plate; 834. Sliding cavity; 835. Sliding column; 836. Rebound spring; 837. Elastic layer; 84. Secondary drive component; 841. Mounting box; 842. Motor; 9. Metering tube; 10. Bend; 11. Main drive component; 111. Power source; 112. Turntable; 12. Blind cover; 13. Inlet; 14. Flange. Detailed Implementation

[0051] Please see Figures 1-10 The present invention provides a multi-way valve for multi-well production measurement, comprising: multi-way valve 1, rear cover 2, valve core 3, connecting plate 4, valve seat 5, ball receiving pipe 6, medium pipe 7, metering pipe 9, bend 10, main drive component 11, and inlet 13;

[0052] Among them, the multi-way valve 1 has a hollow cavity structure, and a metering tube 9 is provided at the center of one end, and a rear cover 2 is provided at the other end. The multi-way valve 1 has multiple inlets 13 arranged around the circumference of one end of the metering tube 9. Except for one inlet 13, the other inlets 13 are all connected to a bend 10.

[0053] A connecting plate 4 is provided on the inner wall of the multi-way valve 1 near the metering tube 9. A valve core 3 is coaxially rotatably provided inside the multi-way valve 1. A valve seat 5 is installed on the valve core 3. A main drive component 11 is provided on the side of the rear cover 2 away from the multi-way valve 1.

[0054] A ball receiving pipe 6 is provided on the side wall of the multi-way valve 1, and a medium pipe 7 is provided on the ball receiving pipe 6. The ball receiving pipe 6 is connected to the internal cavity of the multi-way valve 1.

[0055] For a preferred embodiment, please refer to Figure 1 and Figure 2As shown, the multi-way valve 1 of this invention has ten inlets 13, nine of which are connected to bends 10, and the remaining inlet 13 is sealed by a blind cap 12, which is designated as the pause port. The multi-way valve 1 of this invention has three outlets, namely the outlets of the metering pipe 9, the ball receiving pipe 6, and the medium pipe 7 located at the ends of the multi-way valve 1 furthest from the valve.

[0056] In this invention, the ends of the nine bends 10, the metering pipe 9, the ball receiving pipe 6, and the medium pipe 7 that are away from the multi-way valve 1 are all provided with flanges 14. The ends of the nine bends 10 that are close to the flanges 14 are respectively connected to their corresponding external single-well conveying pipelines for receiving conveying media from different single wells.

[0057] Furthermore, the connecting plate 4 includes: a plate body 41, a central hole 42, and a connecting hole 43;

[0058] The plate 41 is located on the inner wall of the multi-way valve 1 near the metering tube 9. A central hole 42 is provided at the center of the plate 41, and multiple connecting holes 43 are provided around the plate 41 outside the central hole 42.

[0059] The number of connecting holes 43 is the same as that of inlet 13, and the multiple connecting holes 43 are connected to the multiple bends 10 one by one.

[0060] In this embodiment, please refer to Figure 1 and Figure 3 As shown, the plate 41 is connected to the inner wall of the multi-way valve 1 near the metering tube 9 by screws. There are ten connecting holes 43, which are connected to the ten inlets 13 one by one.

[0061] Furthermore, the valve core 3 includes: a core body 31, a mounting end 32, a drive end 33, a channel 34, and a mounting cavity 35;

[0062] The core 31 has an installation end 32 at one end and a driving end 33 at the other end. The installation end 32 is rotatably disposed in the central hole 42 and passes through the multi-way valve 1 and is connected to the metering tube 9. The driving end 33 rotatably passes through the rear cover 2 and is connected to the main driving component 11.

[0063] The core 31 has a mounting cavity 35 on one side of the mounting end 32, and the other side is recessed.

[0064] The core 31 and the mounting end 32 have a channel 34 inside. One end of the channel 34 is connected to the mounting cavity 35, and the other end is connected to the metering tube 9.

[0065] For a preferred embodiment, please refer to Figure 1 and Figure 4As shown, in this invention, the valve core 3 can rotate a full circle within the internal cavity of the multi-way valve 1 under the drive of the main drive component 11. Specifically, the main drive component 11 drives the drive end 33 to rotate a full circle, which in turn drives the core body 31 and the mounting end 32 to rotate synchronously.

[0066] Furthermore, the valve seat 5 includes: a seat body 51, a barrier ring 52, a spring seat 53, a receiving cavity 54, and a preload spring 55;

[0067] The spring seat 53 has a concave structure and is located in the mounting cavity 35. The end of the spring seat 53 near the inner wall of the mounting cavity 35 has multiple receiving cavities 54. Each receiving cavity 54 is provided with a pre-tightening spring 55. One end of each pre-tightening spring 55 is connected to the inner wall of its corresponding receiving cavity 54, and the other end is connected to the inner wall of the mounting cavity 35.

[0068] The seat 51 has an outward convex structure. The outward convex part of the seat 51 is connected to the concave part of the spring seat 53. The end of the seat 51 away from the spring seat 53 is provided with a mounting groove, and a barrier ring 52 is provided in the mounting groove.

[0069] In this embodiment, please refer to Figure 1 and Figure 5 As shown, during the full rotation of the valve core 3, the valve seat 5 within its mounting cavity 35 will rotate synchronously. It should be noted that the barrier ring 52 serves a sealing function, and the preload springs 55 within each receiving cavity 54 provide preload force to the valve seat 5 to achieve a more efficient seal.

[0070] In this embodiment, O-rings are provided at the connection between the barrier ring 52 and the seat 51, the connection between the seat 51 and the spring seat 53, and the connection between the spring seat 53 and the mounting cavity 35 to ensure the normal operation of the invention.

[0071] Furthermore, the valve seat 5 also includes: a partition 56, a seat hole 57, and a spring seat hole 58;

[0072] Among them, the seat 51 and the spring seat 53 are respectively provided with seat hole 57 and spring seat hole 58, the seat hole 57 and the spring seat hole 58 are coaxially connected, and the partition 56 is installed in the seat hole 57.

[0073] One end of channel 34 near valve seat 5 is connected to seat hole 57 and spring seat hole 58. Seat hole 57 can be connected to each bend 10 through each connecting hole 43 by the rotation of valve core 3.

[0074] Furthermore, the diameters of the seat hole 57, spring seat hole 58, bend 10, metering tube 9, connecting hole 43, channel 34, and inlet 13 are all the same.

[0075] For a preferred embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when it is necessary to measure the production of a single well among multiple wells, the bend 10 connected to this single well is first determined, and then the main drive unit 11 is started. The main drive unit 11 drives the valve core 3 to rotate a full circle until the end of the channel 34 near the valve seat 5 corresponds to the inlet 13 and the connecting hole 43 at the corresponding position of the bend 10.

[0076] At this point, a passage is formed between the single-well delivery pipe, bend 10, inlet 13, connecting hole 43, seat hole 57, spring seat hole 58, channel 34, and metering pipe 9. The single-well delivery medium is ultimately sent to the metering equipment for metering. The flow sequence of the single-well delivery medium (e.g.) Figure 1 (As indicated by the dashed arrow in the middle) are: single well delivery pipe, bend 10, inlet 13, connecting hole 43, seat hole 57, spring seat hole 58, channel 34 and metering pipe 9.

[0077] At this point, the production of a single well can be measured. To measure the production of different single wells, simply use the main drive component 11 to rotate the valve core 3 to the designated position (the principle is the same as above). It should be noted that when this invention measures the production of one single well, the transport medium from the other eight single wells will enter the multi-way valve 1 and eventually be discharged through the medium pipe 7. This invention can measure both gas production and liquid production.

[0078] In a preferred embodiment, when it is not necessary to measure the production of a single well, the main drive unit 11 will rotate the valve core 3 to a position corresponding to the stop port (described above) at the end of the channel 34 near the valve seat 5. At this time, the conveying medium from each single well will flow through each bend 10 and enter the multi-way valve 1 for mixing, and then be discharged through the medium pipe 7.

[0079] Furthermore, the medium tube 7 includes: a square tube 71 and a round tube 72;

[0080] One end of the square tube 71 is connected to the ball receiving tube 6, and the other end is connected to the round tube 72. The end of the round tube 72 away from the square tube 71 is connected to an external mechanism. A springback mechanism 8 is provided on the square tube 71.

[0081] In this embodiment, please refer to Figure 1 and Figure 6 As shown, when the inside of the multi-way valve 1 needs to be cleaned, pigging balls (currently, all pigging balls are made of elastic rubber) are launched into the multi-way valve 1 from each bend 10. During the flow process, the pigging balls will remove impurities from the inner wall of the multi-way valve 1, and the pigging balls will be discharged from the collection pipe 6 after cleaning.

[0082] It should be noted that, in order to ensure that the pig can be smoothly discharged to the outside of the multi-way valve 1 and to prevent the fragments of the pig from being discharged from the medium pipe 7 along with the transport medium, the present invention divides the medium pipe 7 into two parts: a square pipe 71 and a round pipe 72, and a rebound mechanism 8 is provided in the square pipe 71.

[0083] Furthermore, the springback mechanism 8 includes: a rotating column 81, a flow cavity 82, a springback assembly 83, and a secondary drive component 84;

[0084] Among them, a secondary drive component 84 is provided on the outer side of the square tube 71, and two rotating columns 81 are rotatably arranged inside the square tube 71. Each rotating column 81 has multiple V-shaped flow cavities 82 opened on its circumference, and multiple spring-loaded components 83 are arranged on the outer circumference of each rotating column 81. The number of flow cavities 82 and spring-loaded components 83 is the same.

[0085] Sub-drive component 84 includes: mounting box 841 and motor 842;

[0086] The mounting box 841 contains two motors 842. The output shafts of the two motors 842 pass through the mounting box 841 and the square tube 71 in a sealed manner and are connected to their corresponding rotating columns 81 respectively.

[0087] Furthermore, the rebound assembly 83 includes: a base 831, a rotating shaft 832, a spring plate 833, a sliding cavity 834, a sliding column 835, a rebound spring 836, and an elastic layer 837;

[0088] Among them, there are multiple bases 831, and multiple bases 831 are equidistantly arranged on the outer wall of the rotating column 81 along the axial direction of the rotating column 81. A rotating shaft 832 is rotatably arranged on the multiple bases 831, and an elastic plate 833 with an elastic layer 837 is arranged on the rotating shaft 832.

[0089] The side of the spring plate 833 near the outer wall of the rotating column 81 is connected to the outer wall of the rotating column 81 by multiple spring springs 836. Each spring spring 836 is sleeved on a sliding column 835 located on the outer wall of the rotating column 81, and each sliding column 835 is slidably connected in a sliding cavity 834 located on the outer wall of the rotating column 81.

[0090] For a preferred embodiment, please refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, when the two rotating columns 81 are in their initial positions, the spring-loaded components 83 on their adjacent side walls are in a mating position (see [reference]). Figure 8 As shown, the spring return component 83 at position A corresponds to the spring return component 83 at position B.

[0091] Specifically, the two motors 842 will drive the two rotating columns 81 to rotate a full circle at the same speed but in different directions (e.g., Figure 8As the rotation continues (as indicated by the dashed arrow), the spring plates 833 in the two spring-rebound assemblies 83 at positions A and B will press against each other (as shown by the dashed arrow). Figure 9 As shown in the figure, at this time, the slide bar 835 will slide into the slide cavity 834, and the return spring 836 will begin to compress and store force.

[0092] As rotation continues, the spring plates 833 in the two spring-return assemblies 83 at positions A and B will disengage from each other (e.g., Figure 10 As shown), at this time, the return spring 836 begins to release its elastic force, which pops out the two spring plates 833, thereby popping the pig located at this position towards the pig collection pipe 6 (during the full rotation of the two rotating columns 81, the rotation trend can also play an auxiliary role in popping out the pig), so that the pig can be smoothly discharged from the multi-way valve 1 through the pig collection pipe 6.

[0093] This invention avoids using obstruction components such as slotted balls or intercepting rods to block the pigging process. Furthermore, because the two rotating columns 81 are continuously rotating a full circumference, this invention enables the dynamic ejection of the pigging ball. The pigging ball will not deform and become stuck in the obstruction components, nor will its structure be damaged when it collides with the obstruction components due to excessive impact force.

[0094] In this invention, the elastic plate 833 is provided with an elastic layer 837, which will not damage the structure of the pig itself, and prevent the pig fragments from being discharged from the medium pipe 7 along with the conveying medium, thus preventing it from affecting subsequent use.

[0095] It should be noted that the flow cavity 82 in this invention has a V-shaped structure and has two openings, one of which is located between two adjacent rebound assemblies 83 (this opening is referred to as the first opening, e.g.) Figure 7 As shown at point C), another cavity is located inside the spring plate 833 (this cavity is referred to as the second cavity, as shown in point C). Figure 7 As shown at point D in the middle.

[0096] In a preferred embodiment, during the rotation of the two rotating columns 81, when the flow cavity 82 rotates to the side closer to the receiving tube 6, the conveying medium will enter the flow cavity 82 from the first cavity opening. Since the conveying medium is continuous, a portion of the conveying medium will be temporarily stored in the flow cavity 82, and another portion of the conveying medium will be directly discharged from the second cavity opening.

[0097] The conveying medium discharged directly from the second cavity will add force to the operation of the spring plate 833 to eject the pigging ball. The conveying medium temporarily stored in the flow cavity 82 will enter the circular tube 72 as the rotating column 81 rotates, and then be discharged smoothly.

[0098] It should be noted that the diameter of the pigging ball in this invention is designed to prevent it from getting stuck on the inner wall of the square tube 71. In this invention, during the rotation of the rotating column 81, the spring plate 833 in its upper spring assembly 83 contacts the inner wall of the square tube 71 but does not compress (the spring spring 836 is not compressed to store force), so as to prevent the spring plate 833 from damaging the inner wall of the square tube 71 due to its rebound.

[0099] Furthermore, the overall drive unit 11 includes: a power source 111 and a turntable 112;

[0100] The output end of the power source 111 is connected to the drive end 33, and a turntable 112 is installed on the power source 111.

[0101] In this embodiment, the power source 111 can be any component that can drive the valve core 3 to rotate a full circle. It needs to have the function of accurately stopping at a certain rotation angle. The power source 111 is a common existing component, and will not be described in detail here.

[0102] As a preferred embodiment, to prevent the inability to perform single-well production metering operations normally when the power source 111 fails or is damaged, the present invention provides another driving method for driving the valve core 3 to rotate a full circle, namely, through the turntable 112. The connection method of the turntable 112 driving the valve core 3 to rotate a full circle is a common existing method, and will not be described in detail here.

[0103] In practice, when it is necessary to measure the production of a single well among multiple wells, the bend 10 connected to this single well is first determined. Then, the main drive unit 11 is activated, which drives the valve core 3 to rotate a full circle until the end of the channel 34 near the valve seat 5 corresponds to the inlet 13 and the connecting hole 43 at the corresponding position of the bend 10. At this time, a passage is formed between the single well delivery pipe, the bend 10, the inlet 13, the connecting hole 43, the seat hole 57, the spring seat hole 58, the channel 34, and the metering pipe 9, and the single well delivery medium is finally sent to the metering equipment for measurement. When it is not necessary to measure the production of a single well, the main drive unit 11 will drive the valve core 3 to rotate until the end of the channel 34 near the valve seat 5 corresponds to the stop port. At this time, the medium delivered from each single well will flow through each bend 10 and enter the multi-way valve 1 for mixing, and then be discharged through the medium pipe 7. When the inside of the multi-way valve 1 needs to be cleaned, cleaning balls are launched into the multi-way valve 1 from each bend 10. During the flow process, the cleaning balls will remove impurities from the inner wall of the multi-way valve 1. After the cleaning is completed, the cleaning balls will be discharged from the ball receiving pipe 6.

[0104] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-way valve for multi-well production metering, characterized in that: include: Multi-way valve, rear cover, valve core, connecting plate, valve seat, ball receiving pipe, medium pipe, metering pipe, bend, main drive component and inlet; The multi-way valve has a hollow internal structure, with the metering tube located at the center of one end and the rear cover located at the other end. The multi-way valve has multiple inlets around the circumference of one end of the metering tube, and all inlets except one of the inlets are connected to the bend. The connecting plate is provided on the inner wall of the multi-way valve near the metering tube. The valve core is coaxially rotatably arranged inside the multi-way valve. The valve seat is installed on the valve core. The main drive component is provided on the side of the rear cover away from the multi-way valve. The ball receiving tube is provided on the side wall of the multi-way valve, and the medium tube is provided on the ball receiving tube. The ball receiving tube is connected to the internal cavity of the multi-way valve. The medium tube includes: a square tube; One end of the square tube is connected to the ball receiving tube, and a spring-back mechanism is provided on the square tube; The springback mechanism includes: a rotating column, a flow cavity, a springback assembly, and a secondary drive component; The auxiliary driving component is provided on the outside of the square tube, and two rotating columns are rotatably arranged inside the square tube. Each rotating column has multiple V-shaped flow cavities on its circumference, and multiple spring-loaded components are arranged on the outer circumference of each rotating column. The number of flow cavities and spring-loaded components is the same. The output end of the auxiliary driving component is connected to the rotating column. The rebound assembly includes: a base, a spring plate, a sliding cavity, a sliding column, and a rebound spring; The base is multiple, and the multiple bases are equidistantly arranged on the outer wall of the rotating column along the axial direction of the rotating column. The spring plate is rotatably arranged on the multiple bases. The side of the spring plate near the outer wall of the rotating column is connected to the outer wall of the rotating column by a plurality of spring springs. Each spring spring is sleeved on a sliding column located on the outer wall of the rotating column, and each sliding column is slidably connected to a sliding cavity located on the outer wall of the rotating column.

2. A multi-way valve for multi-well production metering according to claim 1, characterized in that: The connecting plate includes: a plate body, a central hole, and a connecting hole; The plate is disposed on the inner wall of the multi-way valve near the metering tube, and a central hole is provided at the center of the plate. Multiple connecting holes are provided on the circumference of the plate outside the central hole. The number of connecting holes is the same as the number of inlets, and each of the connecting holes is connected to a corresponding bend in the pipe.

3. A multi-way valve for multi-well production metering according to claim 2, characterized in that: The valve core includes: a core body, a mounting end, a driving end, a channel, and a mounting cavity; The core has an installation end at one end and a driving end at the other end. The installation end is rotatably disposed in the central hole and passes through the multi-way valve and is connected to the metering tube. The driving end rotatably passes through the rear cover and is connected to the main driving component. The core has a mounting cavity at one end near the mounting end, located on one side of the mounting end, and is recessed at the other side. The core and the mounting end are provided with the channel, one end of the channel is connected to the mounting cavity and the other end is connected to the metering tube.

4. A multi-way valve for multi-well production metering according to claim 3, characterized in that: The valve seat includes: a seat body, a barrier ring, a spring seat, a receiving cavity, and a preload spring; The spring seat has a concave structure and is disposed in the mounting cavity. The end of the spring seat near the inner wall of the mounting cavity has a plurality of receiving cavities circumferentially formed. Each receiving cavity is provided with a pre-tightening spring. One end of each pre-tightening spring is connected to the inner wall of its corresponding receiving cavity, and the other end is connected to the inner wall of the mounting cavity. The seat body has an outward convex structure, and the outward convex part of the seat body is connected to the inward concave part of the spring seat. The end of the seat body away from the spring seat is provided with a mounting groove, and the barrier ring is provided in the mounting groove.

5. A multi-way valve for multi-well production metering according to claim 4, characterized in that: The valve seat also includes: a baffle, a seat hole, and a spring seat hole; The seat and the spring seat are respectively provided with a seat hole and a spring seat hole, the seat hole and the spring seat hole are coaxially connected, and the partition is installed in the seat hole; The end of the channel near the valve seat is connected to the seat hole and the spring seat hole. The seat hole can be connected to each of the bends through the connecting holes by the rotation of the valve core.

6. A multi-way valve for multi-well production metering according to claim 5, characterized in that: The diameters of the seat hole, the spring seat hole, the bend, the metering tube, the connecting hole, the channel, and the inlet are all the same.

7. A multi-way valve for multi-well production metering according to claim 1, characterized in that: The medium tube also includes: a circular tube; The square tube is connected to the round tube at one end away from the ball receiving tube, and the round tube is connected to an external mechanism at one end away from the square tube.

8. A multi-way valve for multi-well production metering according to claim 7, characterized in that: The secondary drive component includes: a mounting box and a motor; The mounting box contains two motors, and the output shafts of the two motors are sealed through the mounting box and the square tube and connected to their corresponding rotating columns.

9. A multi-way valve for multi-well production metering according to claim 8, characterized in that: The rebound assembly also includes: a pivot and an elastic layer; The elastic plate with the elastic layer is rotatably mounted on the base via the rotating shaft.

10. A multi-way valve for multi-well production metering according to claim 3, characterized in that: The overall driving component includes: a power source and a turntable; The power source output end is connected to the drive end, and the power source is equipped with the turntable.

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