Quantitative watering gathering and transportation process combined heat preservation pigging wellhead device

Abstract

The invention relates to the technical field of petroleum drilling and production accessories, in particular to a quantitative watering gathering and transportation process combined heat preservation pigging wellhead device which comprises a supporting frame, an oil inlet pipe, an oil outlet pipe and a mixing pipe are arranged on the supporting frame, and a first water seepage component and a second water seepage component are arranged on the outer wall of the mixing pipe in a communicating mode. A cleaning assembly used for treating sticky oil on the inner pipe wall is arranged between the oil inlet pipe and the oil outlet pipe, the first water seepage assembly comprises a first water pipe, a water control assembly and a driving part, the second water seepage assembly comprises a second water pipe and an additive feeding assembly, and detection parts used for monitoring the water seepage condition are arranged between the mixing pipe and the first water pipe and between the mixing pipe and the second water pipe. The water control assembly is driven by the driving part to work, hot water introduced by the first water pipe is controlled, the water inlet amount is controlled under the condition that the conveying pressure of an external hydraulic pump is not reduced, and sticky oil removing work is conducted on the connecting position of the oil inlet pipe and the oil outlet pipe through the cleaning assembly; real-time dredging in the oil outlet pipe is achieved, and the oil output yield is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling accessories, in particular to a quantitative water mixing and gathering technology combined heat-insulating pipe cleaning wellhead device. Background Art

[0002] In the process of heavy oil extraction, the heavy oil in the oil well usually has high viscosity and low temperature, so the hot water mixing process is introduced. Since the density of oil is smaller than that of water, the oil will float on the water surface during the water injection process. The water mixing process will not affect the extraction of crude oil. With the long-term oil production process, sticky oil will adhere to the inner wall of the oil well pipeline, which will affect the crude oil production. By mixing water at high temperature, the crude oil is diluted, which not only reduces the viscosity of the crude oil, but also dissolves the sticky oil attached to the inside of the pipeline, so as to make the inside of the pipeline unobstructed.

[0003] The current water-adding assembly is usually a pipe connected to the oil inlet port, and a heating furnace and other components are arranged on the pipe to heat the water source. However, it is found in long-term use that despite the water-adding process, the internal pipe will still be clogged with oil. On the one hand, it is because the water-adding temperature is not enough, and on the other hand, it is also because the inside of the pipe will be sticky with oil and other substances sticking together to form scaling. During the crude oil extraction process, real-time cleaning and monitoring of the inside of the pipe are not achieved, and good temperature control cannot be achieved, so blockage inside the pipe will still occur. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a quantitative water mixing and gathering technology combined with a heat-insulating cleaning wellhead device to solve the problem that the existing oil production pipelines are prone to sticky oil blockage inside the pipelines.

[0005] Based on the above purpose, the present invention provides a quantitative water mixing and gathering technology combined heat preservation and cleaning wellhead device, including a support frame, on which an oil inlet pipe, an oil outlet pipe and a mixing pipe are installed, the oil inlet pipe is connected with the oil outlet pipe to form an oil production pipeline, one end of the mixing pipe is connected to the inside of the oil inlet pipe, and a first water seepage component and a second water seepage component are connected on the outer wall of the mixing pipe, and a cleaning component for treating sticky oil on the inner pipe wall is provided between the oil inlet pipe and the oil outlet pipe; The first water seepage component comprises: a first water pipe, one end of which is in communication with the interior of the mixing pipe; A water control component installed inside the first water pipe; A driving member, fixedly mounted on the outer wall of the first water pipe, one end of the driving member passes through the first water pipe and is in transmission connection with the water control assembly; The second water seepage component includes: a second water pipe, one end of which is in communication with the interior of the mixing pipe; An additive delivery assembly is arranged on the outer wall of the second water pipe; Wherein, detection components for monitoring water seepage conditions are provided between the mixing pipe and the first water pipe and the second water pipe.

[0006] Preferably, the water control component comprises: A cross-shaped bracket, fixed inside the first water pipe; A fixing rod, one end of which is fixedly arranged at the middle part of the cross-shaped bracket; A first fan-shaped water baffle is arranged in an angle of the cross-shaped bracket, the arc surface of the first fan-shaped water baffle is fixedly connected to the inner wall of the first water pipe, and the two straight sides of the first fan-shaped water baffle are respectively fixedly connected to a straight rod of the cross-shaped bracket; A second fan-shaped water baffle plate has a first through hole at the angle between its two straight sides, the first through hole is sleeved on the fixing rod, and one side of the second fan-shaped water baffle plate is fitted with one side of the cross-shaped bracket; The third fan-shaped water baffle plate has a second through hole at the angle between its two straight sides, the second through hole is sleeved on the fixing rod, and one side of the third fan-shaped water baffle plate is arranged in close contact with the side of the second fan-shaped water baffle plate away from the cross-shaped bracket; A fourth fan-shaped water baffle plate has a third through hole at the angle between its two straight sides, the third through hole is sleeved on the fixing rod, one side of the fourth fan-shaped water baffle plate is fitted with a side of the third fan-shaped water baffle plate away from the second fan-shaped water baffle plate, and the fourth fan-shaped water baffle plate is transmission-connected to the driving member; Among them, a transmission mechanism is provided between the second fan-shaped water baffle and the third fan-shaped water baffle and between the third fan-shaped water baffle and the fourth fan-shaped water baffle. Through the transmission mechanism, the second fan-shaped water baffle, the third fan-shaped water baffle and the fourth fan-shaped water baffle are unfolded and folded along the first fan-shaped water baffle to complete the closing and opening of the cross-shaped bracket.

[0007] Preferably, two straight rods on the cross-shaped bracket that are diagonal to the first fan-shaped water baffle are respectively fixed with limiting strips for blocking the second fan-shaped water baffle and the third fan-shaped water baffle.

[0008] Preferably, the transmission mechanism comprises: An arc-shaped through hole is provided on the side of the second fan-shaped water baffle plate and the third fan-shaped water baffle plate away from the cross-shaped bracket; A convex shaft is arranged on one side of the third fan-shaped water baffle plate and the fourth fan-shaped water baffle plate close to the cross-shaped bracket, and the convex shaft is arranged in the arc-shaped through hole.

[0009] Preferably, the driving member comprises: A first motor is fixedly mounted on the outer wall of the first water pipe, and an output shaft of the first motor is passed through the interior of the first water pipe; A first bevel gear is arranged inside the first water pipe, the first bevel gear is sleeved on the output shaft of the first motor, and the first bevel gear is fixedly connected to the output shaft of the first motor; The second bevel gear is sleeved on the fixing rod, the second bevel gear is fixedly connected to the fourth sector-shaped water baffle, and the second bevel gear is meshed with the first bevel gear.

[0010] Preferably, the additive delivery component comprises: An outer cylinder is passed through the outer wall of the second water pipe, and the outer cylinder is fixedly connected to the second water pipe; A bottom seal plug is arranged at the bottom of the outer cylinder; A top sealing plug is arranged at the top of the outer cylinder, at least two first connecting plates are fixedly arranged between the top sealing plug and the bottom sealing plug, and the outer walls of the top sealing plug and the bottom sealing plug are both threadedly connected to the inner wall of the outer cylinder; A handle, fixedly mounted on an end of the top sealing plug away from the first connecting plate; When the top seal is threadedly connected to the outer tube, the bottom seal is separated from the threaded connection with the outer tube, and the length of the top seal is greater than that of the bottom seal.

[0011] Preferably, the detection component includes a pressure control valve and a temperature detector.

[0012] Preferably, the cleaning component comprises: A connecting pipe, one end of which is connected to the oil outlet pipe, and the other end of which is fixed with a sealing box, and the sealing box is connected to the oil inlet pipe; An installation box is fixedly mounted on the outer wall of the connecting pipe; A first gear is arranged in the sealing box, one side of the first gear is rotatably connected to the connecting pipe, the aperture of the first gear is the same as the inner diameter of the connecting pipe, and the first gear and the connecting pipe are arranged coaxially; A second motor is fixedly mounted inside the installation box, an output shaft of the second motor passes through the installation box and the sealing box and is fixedly provided with a second gear, and the second gear is meshed with the first gear; At least one oil scraper is disposed on the inner wall of the connecting pipe, and the oil scraper is drivingly connected to the first gear.

[0013] Preferably, the sides of the scraper plates are slidably connected with limit plates, one end of each limit plate is fixed on the inner wall of the first gear, the interior of the connecting tube is slidably connected with a push ring through a key structure, one side of the push ring is provided with an annular groove, and the other side is fixed with a rack, one end of the scraper plate is fixed with a limit shaft, the limit shaft is clamped in the annular groove, a connecting seat is fixed on the inner wall of the first gear, a guide rod is passed through the connecting seat, one end of the guide rod is clamped in the annular groove, a third motor is fixed inside the mounting box, the output shaft of the third motor passes through the mounting box and the connecting tube is fixed with a third gear, and the third gear is meshed with the rack.

[0014] Preferably, a second connecting plate is fixedly provided on the inner wall of the first gear along the diameter direction, and a stirring paddle is provided inside the connecting cylinder, and one end of the stirring paddle is fixedly connected to the center of the second connecting plate.

[0015] The beneficial effects of the present invention are as follows: during the oil production process in the oil production pipeline, external hot water is introduced into the mixing tube through the first water pipe and the second water pipe, and then introduced into the oil production pipeline through the mixing roller. The water control component is driven by the driving member to control the hot water introduced by the first water pipe, so as to ensure that the water intake is controlled without reducing the delivery pressure of the external hydraulic pump, so as to avoid the backflow of liquid in the pipeline. The descaling agent is safely added into the second water pipe by the additive delivery component, so as to effectively avoid the problem that the hot water in the second water pipe is sprayed out from the delivery point. The cleaning component is used to remove sticky oil from the connection between the oil inlet pipe and the oil outlet pipe, so as to achieve real-time dredging in the oil outlet pipe and increase the oil output. The detection member can control the temperature in the first water pipe and the second water pipe, so as to ensure that the temperature of the hot water affects the temperature of the crude oil, reduce the viscosity of the crude oil, and further increase the crude oil output. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the open state of the water control component according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a closed state of a water control component according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the third fan-shaped water retaining plate according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure inside the outer cylinder of an embodiment of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure inside the connecting tube of an embodiment of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the oil scraper according to an embodiment of the present invention.

[0018] The markings in the figure are: 1. Support frame; 2. Oil inlet pipe; 3. Oil outlet pipe; 4. Mixing pipe; 5. Cleaning assembly; 6. First water pipe; 7. Second water pipe; 8. Cross bracket; 9. Fixing rod; 10. First fan-shaped water baffle; 11. Second fan-shaped water baffle; 12. Third fan-shaped water baffle; 13. Fourth fan-shaped water baffle; 14. Limiting strip; 15. Arc-shaped through hole; 16. Convex shaft; 17. First motor; 18. First bevel gear; 19. Second bevel gear; 20. Outer cylinder; 21. Bottom seal plug; 22. Top Plug; 23. First connecting plate; 24. Handle; 25. Pressure control valve; 26. Temperature detector; 27. Connecting pipe; 28. Sealing box; 29. ​​Mounting box; 30. First gear; 31. Second motor; 32. Second gear; 33. Scraper plate; 34. Limit plate; 35. Push ring; 36. Annular groove; 37. Rack; 38. Limit shaft; 39. Connecting seat; 40. Guide rod; 41. Third motor; 42. Third gear; 43. Second connecting plate; 44. Agitator. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1 to 8As shown, a quantitative water mixing gathering and transportation process combined heat preservation pigging wellhead device comprises a support frame 1, on which an oil inlet pipe 2, an oil outlet pipe 3 and a mixing pipe 4 are installed, the oil inlet pipe 2 is connected with the oil outlet pipe 3 to form an oil production pipeline, one end of the mixing pipe 4 is communicated with the inside of the oil inlet pipe 2, and a first water seepage component and a second water seepage component are communicated on the outer wall of the mixing pipe 4, and a cleaning component 5 for treating sticky oil on the inner pipe wall is provided between the oil inlet pipe 2 and the oil outlet pipe 3; The first water seepage component comprises: A first water pipe 6, one end of which is connected to the interior of the mixing pipe 4; A water control component installed inside the first water pipe 6; A driving member, fixedly mounted on the outer wall of the first water pipe 6, one end of the driving member passes through the first water pipe 6 and is transmission-connected to the water control assembly; The second water seepage component includes: A second water pipe 7, one end of which is connected to the interior of the mixing pipe 4; An additive delivery assembly is arranged on the outer wall of the second water pipe 7; Wherein, detection components for monitoring water seepage conditions are provided between the mixing tube 4 and the first water pipe 6 and the second water pipe 7 .

[0022] For example, during the oil production process in the oil production pipeline, external hot water is introduced into the mixing tube 4 through the first water pipe 6 and the second water pipe 7, and then introduced into the oil production pipeline through the mixing roller. The water control component is driven by the driving member to control the hot water introduced by the first water pipe 6 to ensure that the water intake is controlled without reducing the external hydraulic pump delivery pressure to avoid the backflow of liquid in the pipeline. The descaling agent is safely added into the second water pipe 7 through the additive delivery component, which can effectively avoid the problem of hot water in the second water pipe 7 being sprayed out from the delivery point. The cleaning component 5 is used to remove sticky oil from the connection between the oil inlet pipe 2 and the oil outlet pipe 3 to achieve real-time dredging in the oil outlet pipe 3 and increase the oil output. The detection component can control the temperature in the first water pipe 6 and the second water pipe 7 to ensure that the temperature of the hot water affects the temperature of the crude oil, reduce the viscosity of the crude oil, and further increase the crude oil output.

[0023] As an optional embodiment, the water control component includes: A cross-shaped bracket 8, fixed inside the first water pipe 6; A fixing rod 9, one end of which is fixedly arranged in the middle of the cross-shaped bracket 8; The first fan-shaped water baffle 10 is arranged in an angle of the cross-shaped bracket 8, the arc surface of the first fan-shaped water baffle 10 is fixedly connected to the inner wall of the first water pipe 6, and the two straight sides of the first fan-shaped water baffle 10 are respectively fixedly connected to a straight rod of the cross-shaped bracket 8; The second fan-shaped water baffle plate 11 has a first through hole at the angle between its two straight sides, the first through hole is sleeved on the fixing rod 9, and one side of the second fan-shaped water baffle plate 11 is fitted with one side of the cross-shaped bracket 8; The third fan-shaped water baffle plate 12 has a second through hole at the angle between its two straight sides, the second through hole is sleeved on the fixing rod 9, and one side of the third fan-shaped water baffle plate 12 is arranged in close contact with the side of the second fan-shaped water baffle plate 11 away from the cross-shaped bracket 8; The fourth fan-shaped water baffle 13 has a third through hole at the angle between its two straight sides, and the third through hole is sleeved on the fixing rod 9. One side of the fourth fan-shaped water baffle 13 is arranged in close contact with the side of the third fan-shaped water baffle 12 away from the second fan-shaped water baffle 11, and the fourth fan-shaped water baffle 13 is transmission-connected to the driving member. Among them, a transmission mechanism is provided between the second fan-shaped water baffle 11 and the third fan-shaped water baffle 12 and between the third fan-shaped water baffle 12 and the fourth fan-shaped water baffle 13. Through the transmission mechanism, the second fan-shaped water baffle 11, the third fan-shaped water baffle 12 and the fourth fan-shaped water baffle 13 are unfolded and folded along the first fan-shaped water baffle 10 to complete the closing and opening of the cross-shaped bracket 8.

[0024] For example, taking the initial state as a fully closed state as an example, the fourth fan-shaped water baffle 13 is driven to rotate by the driving member so that the fourth fan-shaped water baffle 13 overlaps with the third fan-shaped water baffle 12. At this time, the cross-shaped bracket 8 has an angle portion opened, and the water inlet is at the minimum output stage. When the fourth fan-shaped water baffle 13 overlaps with the third fan-shaped water baffle 12, the third fan-shaped water baffle 12 is driven to rotate together with the second fan-shaped water baffle 11 through the transmission mechanism between the fourth fan-shaped water baffle 13 and the third fan-shaped water baffle 12. At this time, the cross-shaped bracket 8 has two The angled portion is opened, and the water intake is in the medium output stage. The transmission mechanism between the second fan-shaped water baffle 11 and the third fan-shaped water baffle 12 drives the second fan-shaped water baffle 11 to rotate together until it overlaps with the first fan-shaped water baffle 10. At this time, three angled portions of the cross-shaped bracket 8 are in the open state, and the water intake reaches the maximum output stage. The temperature in the first water pipe 6 is monitored by the detection component, and the first motor 17 is controlled to adjust the water intake according to the current temperature of the first water pipe 6 input into the mixing tube 4 to ensure the crude oil temperature, reduce the crude oil viscosity, and increase the crude oil yield.

[0025] As an optional embodiment, two straight rods on the cross-shaped bracket 8 that are diagonal to the first fan-shaped water baffle 10 are respectively fixed with limiting strips 14 for blocking the second fan-shaped water baffle 11 and the third fan-shaped water baffle 12 .

[0026] For example, in order to ensure the accuracy of each water inlet stage, by setting a limit strip 14, after the second fan-shaped water baffle 11 and the third fan-shaped water baffle 12 close the angle corresponding to the cross-shaped bracket 8, they will not continue to rotate under the influence of the transmission mechanism, resulting in the inability to close the angle of the cross-shaped bracket 8.

[0027] As an optional embodiment, the transmission mechanism includes: An arc-shaped through hole 15 is provided on the side of the second fan-shaped water baffle plate 11 and the third fan-shaped water baffle plate 12 away from the cross-shaped bracket 8; A convex shaft 16 is disposed on one side of the third sector-shaped water baffle plate 12 and the fourth sector-shaped water baffle plate 13 close to the cross-shaped bracket 8 , and the convex shaft 16 is disposed in the arc-shaped through hole 15 .

[0028] For example, by providing the arc-shaped through hole 15 and the convex shaft 16 structure, the convex shaft 16 moves in the arc-shaped through hole 15 and abuts against both ends of the arc-shaped through hole 15 to drive the third fan-shaped water baffle 12 or the second fan-shaped water baffle 11 to overlap and unfold.

[0029] As an optional embodiment, the driving member includes: A first motor 17 is fixedly mounted on the outer wall of the first water pipe 6, and an output shaft of the first motor 17 is passed through the interior of the first water pipe 6; A first bevel gear 18 is disposed inside the first water pipe 6. The first bevel gear 18 is sleeved on the output shaft of the first motor 17, and the first bevel gear 18 is fixedly connected to the output shaft of the first motor 17; The second bevel gear 19 is sleeved on the fixing rod 9 . The second bevel gear 19 is fixedly connected to the fourth sector-shaped water baffle 13 , and the second bevel gear 19 is meshed with the first bevel gear 18 .

[0030] For example, the first motor 17 drives the first bevel gear 18 to rotate, the first bevel gear 18 drives the second bevel gear 19 to rotate, and the second bevel gear 19 drives the fourth fan-shaped water baffle 13 to rotate, so as to complete the overlapping and unfolding work of the fourth fan-shaped water baffle 13, the third fan-shaped water baffle 12 and the second fan-shaped water baffle 11.

[0031] As an optional embodiment, the additive delivery component includes: The outer cylinder 20 is passed through the outer wall of the second water pipe 7, and the outer cylinder 20 is fixedly connected to the second water pipe 7; A bottom seal 21, arranged at the bottom of the outer cylinder 20; A top sealing plug 22 is arranged at the top of the outer cylinder 20, at least two first connecting plates 23 are fixedly arranged between the top sealing plug 22 and the bottom sealing plug 21, and the outer walls of the top sealing plug 22 and the bottom sealing plug 21 are both threadedly connected to the inner wall of the outer cylinder 20; A handle 24 is fixedly mounted on one end of the top sealing plug 22 away from the first connecting plate 23; When the top seal plug 22 is threadedly connected to the outer tube 20 , the bottom seal plug 21 is detached from the threaded connection with the outer tube 20 , and the length of the top seal plug 22 is greater than that of the bottom seal plug 21 .

[0032] For example, when it is necessary to add a descaling agent, the bottom plug 21 is in the outer cylinder 20 and is threadedly connected, the top plug 22 is detached from the outer cylinder 20, and the descaling agent is placed in the outer cylinder 20 so that the descaling agent is between the two first connecting plates 23. The top plug 22 is driven to rotate by the handle 24, and the top plug 22 drives the bottom plug 21 to rotate in the outer cylinder 20 through the first connecting plate 23. When the top plug 22 is threadedly connected to the inside of the outer cylinder 20, the bottom plug 21 is detached from the outer cylinder 20, and the handle 24 is continued to be rotated to allow the top plug 22 to completely enter the outer cylinder 20. At this time, the bottom of the outer cylinder 20 is no longer closed, and the hot water in the second water pipe 7 will enter between the two second connecting plates 43 to lead out the descaling agent.

[0033] As an optional embodiment, the detection component includes a pressure control valve 25 and a temperature detector 26 .

[0034] As an optional embodiment, the cleaning component 5 includes: A connecting pipe 27, one end of which is connected to the oil outlet pipe 3, and the other end of which is fixedly provided with a sealing box 28, and the sealing box 28 is connected to the oil inlet pipe 2; The installation box 29 is fixed on the outer wall of the connecting pipe 27; A first gear 30 is disposed in the sealing box 28, one side of the first gear 30 is rotatably connected to the connecting tube 27, the aperture of the first gear 30 is the same as the inner diameter of the connecting tube 27, and the first gear 30 and the connecting tube 27 are coaxially disposed; A second motor 31 is fixedly mounted inside the mounting box 29. An output shaft of the second motor 31 passes through the mounting box 29 and the sealing box 28 and is fixedly provided with a second gear 32. The second gear 32 is meshed with the first gear 30. At least one oil scraper 33 is disposed on the inner wall of the connecting pipe 27 , and the oil scraper 33 is drivingly connected to the first gear 30 .

[0035] For example, the second motor 31 drives the second gear 32 to rotate, the second gear 32 drives the first gear 30 to rotate, and the first gear 30 drives the scraper 33 to rotate to clean the sticky oil on the inner wall of the connecting pipe 27.

[0036] As an optional embodiment, the sides of the scraper plate 33 are slidably connected with limit plates 34, and one end of each limit plate 34 is fixed on the inner wall of the first gear 30. The interior of the connecting tube 27 is slidably connected with a push ring 35 through a key structure. One side of the push ring 35 is provided with an annular groove 36, and the other side is fixed with a rack 37. One end of the scraper plate 33 is fixed with a limit shaft 38, and the limit shaft 38 is clamped in the annular groove 36. A connecting seat 39 is fixed on the inner wall of the first gear 30, and a guide rod 40 is passed through the connecting seat 39, and one end of the guide rod 40 is clamped in the annular groove 36. A third motor 41 is fixed inside the mounting box 29, and the output shaft of the third motor 41 passes through the mounting box 29 and the connecting tube 27 and is fixed with a third gear 42, and the third gear 42 is meshed with the rack 37.

[0037] For example, in order to prevent oil from sticking to the position where the oil inlet pipe 2 is connected to the connecting pipe 27, the third motor 41 drives the third gear 42 to rotate, the third gear 42 drives the rack 37 to move, the rack 37 drives the push ring 35 to move, the push ring 35 drives the scraper plate 33 and the guide rod 40 to move, and the scraper plate 33 moves toward the oil inlet pipe 2 on the inner wall of the first gear 30 through the limit plate 34. Since an annular groove 36 is provided on the push ring 35, it is limited by the limit shaft 38 and the guide rod 40 and does not affect the rotation of the first gear 30. Therefore, when the scraper plate 33 moves into the oil inlet pipe 2, the inner wall of the oil inlet pipe 2 is treated for sticky oil.

[0038] As an optional embodiment, a second connecting plate 43 is fixedly provided on the inner wall of the first gear 30 along the diameter direction, and a stirring paddle 44 is provided inside the connecting tube, and one end of the stirring paddle is fixedly connected to the center of the second connecting plate 43 .

[0039] For example, the first gear 30 drives the second connecting plate 43 to rotate, and the second connecting plate 43 drives the stirring paddle 44 to rotate, so as to mix the crude oil evenly, improve the mixing degree of the crude oil and hot water, ensure the crude oil temperature, reduce the crude oil viscosity, improve the circulation efficiency, and achieve good use effect.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quantitative water mixing and gathering technology combined heat-insulating cleaning wellhead device, comprising a support frame (1), on which an oil inlet pipe (2), an oil outlet pipe (3) and a mixing pipe (4) are mounted, wherein the oil inlet pipe (2) is connected to the oil outlet pipe (3) to form an oil production pipeline, and one end of the mixing pipe (4) is connected to the inside of the oil inlet pipe (2), characterized in that: A first water seepage component and a second water seepage component are connected and arranged on the outer wall of the mixing tube (4); a cleaning component (5) for treating sticky oil on the inner tube wall is arranged between the oil inlet pipe (2) and the oil outlet pipe (3); The first water seepage component comprises: A first water pipe (6), one end of which is in communication with the interior of the mixing pipe (4); A water control component installed inside the first water pipe (6); A driving member, fixedly mounted on the outer wall of the first water pipe (6), one end of the driving member passing through the first water pipe (6) and being transmission-connected to the water control component; The second water seepage component comprises: A second water pipe (7), one end of which is in communication with the interior of the mixing pipe (4); An additive delivery assembly, arranged on the outer wall of the second water pipe (7); Wherein, detection components for monitoring water seepage conditions are provided between the mixing tube (4) and the first water tube (6) and the second water tube (7).

2. A quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 1, characterized in that: The water control component comprises: A cross-shaped bracket (8) fixedly arranged inside the first water pipe (6); A fixing rod (9), one end of which is fixedly mounted in the middle of the cross-shaped bracket (8); A first fan-shaped water baffle (10) is arranged within an angle of the cross-shaped bracket (8), the arc surface of the first fan-shaped water baffle (10) is fixedly connected to the inner wall of the first water pipe (6), and the two straight edges of the first fan-shaped water baffle (10) are respectively fixedly connected to a straight rod of the cross-shaped bracket (8); A second fan-shaped water baffle (11) has a first through hole at the angle between its two straight sides, the first through hole is sleeved on the fixing rod (9), and one side of the second fan-shaped water baffle (11) is arranged to fit with one side of the cross-shaped bracket (8); A third fan-shaped water baffle plate (12) has a second through hole at the angle between its two straight sides, the second through hole is sleeved on the fixing rod (9), and one side of the third fan-shaped water baffle plate (12) is arranged to fit with a side of the second fan-shaped water baffle plate (11) away from the cross-shaped bracket (8); A fourth fan-shaped water baffle (13) is provided with a third through hole at the angle between its two straight sides, the third through hole being sleeved on the fixing rod (9), one side of the fourth fan-shaped water baffle (13) being arranged in close contact with a side of the third fan-shaped water baffle (12) away from the second fan-shaped water baffle (11), and the fourth fan-shaped water baffle (13) being transmission-connected to the driving member; A transmission mechanism is provided between the second fan-shaped water baffle (11) and the third fan-shaped water baffle (12) and between the third fan-shaped water baffle (12) and the fourth fan-shaped water baffle (13), and the second fan-shaped water baffle (11), the third fan-shaped water baffle (12) and the fourth fan-shaped water baffle (13) are unfolded and folded along the first fan-shaped water baffle (10) by the transmission mechanism to complete the closing and opening of the cross-shaped bracket (8).

3. A quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 2, characterized in that: Limiting bars (14) for blocking the second fan-shaped water baffle (11) and the third fan-shaped water baffle (12) are respectively fixedly disposed on two straight rods on the cross-shaped bracket (8) that are diagonally opposite to the first fan-shaped water baffle (10).

4. The quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 2 is characterized in that: The transmission mechanism comprises: an arc-shaped through hole (15) provided on a side of the second sector-shaped water baffle plate (11) and the third sector-shaped water baffle plate (12) away from the cross-shaped bracket (8); A convex shaft (16) is arranged on one side of the third sector-shaped water baffle plate (12) and the fourth sector-shaped water baffle plate (13) close to the cross-shaped bracket (8), and the convex shaft (16) is arranged in the arc-shaped through hole (15).

5. The quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 2 is characterized in that: The driving member comprises: a first motor (17) fixedly mounted on the outer wall of the first water pipe (6), wherein an output shaft of the first motor (17) passes through the interior of the first water pipe (6); a first bevel gear (18) disposed inside the first water pipe (6), the first bevel gear (18) being sleeved on the output shaft of the first motor (17), and the first bevel gear (18) and the output shaft of the first motor (17) being fixedly connected; The second bevel gear (19) is sleeved on the fixing rod (9), the second bevel gear (19) is fixedly connected to the fourth sector-shaped water baffle (13), and the second bevel gear (19) is meshed with the first bevel gear (18).

6. The quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 1 is characterized in that: The additive delivery component comprises: An outer cylinder (20) is inserted through the outer wall of the second water pipe (7), and the outer cylinder (20) is fixedly connected to the second water pipe (7); A bottom seal (21) disposed at the bottom of the outer cylinder (20); A top sealing plug (22) is arranged at the top of the outer cylinder (20), at least two first connecting plates (23) are fixedly arranged between the top sealing plug (22) and the bottom sealing plug (21), and the outer walls of the top sealing plug (22) and the bottom sealing plug (21) are both threadedly connected to the inner wall of the outer cylinder (20); A handle (24) is fixedly mounted on an end of the top sealing plug (22) away from the first connecting plate (23); When the top sealing plug (22) is threadedly connected to the outer tube (20), the bottom sealing plug (21) is detached from the threaded connection with the outer tube (20), and the length of the top sealing plug (22) is greater than the length of the bottom sealing plug (21).

7. The quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 1 is characterized in that: The detection component comprises a pressure control valve (25) and a temperature detector (26).

8. The quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 1 is characterized in that: The cleaning component (5) comprises: A connecting pipe (27), one end of which is in communication with the oil outlet pipe (3), and the other end of which is fixedly provided with a sealing box (28), and the sealing box (28) is in communication with the oil inlet pipe (2); A mounting box (29) fixedly mounted on the outer wall of the connecting pipe (27); a first gear (30) disposed in the sealing box (28), one side of the first gear (30) being rotatably connected to the connecting tube (27), the aperture of the first gear (30) being the same as the inner diameter of the connecting tube (27), and the first gear (30) and the connecting tube (27) being coaxially disposed; a second motor (31) fixedly mounted inside the mounting box (29); an output shaft of the second motor (31) passing through the mounting box (29) and the sealing box (28) and fixedly mounted with a second gear (32); the second gear (32) meshing with the first gear (30); At least one oil scraper (33) is disposed in close contact with the inner wall of the connecting pipe (27), and the oil scraper (33) is drivingly connected to the first gear (30).

9. A quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 8, characterized in that: A limit plate (34) is slidably connected to the side of the scraper plate (33), one end of each limit plate (34) is fixedly mounted on the inner wall of the first gear (30), a push ring (35) is slidably connected to the inside of the connecting pipe (27) via a key structure, one side of the push ring (35) is provided with an annular groove (36), and the other side is fixedly mounted with a rack (37), one end of the scraper plate (33) is fixedly mounted with a limit shaft (38), and the limit shaft (38) is clamped on the annular groove (36). A connecting seat (39) is fixedly provided on the inner wall of the first gear (30) in the groove (36), a guide rod (40) is passed through the connecting seat (39), one end of the guide rod (40) is clamped in the annular groove (36), a third motor (41) is fixedly provided inside the mounting box (29), an output shaft of the third motor (41) passes through the mounting box (29) and the connecting pipe (27) and is fixedly provided with a third gear (42), and the third gear (42) is meshed with the rack (37).

10. The quantitative water mixing and gathering technology combined heat preservation and pigging wellhead device according to claim 8, characterized in that: A second connecting plate (43) is fixedly provided on the inner wall of the first gear (30) along the diameter direction, and a stirring paddle (44) is provided inside the connecting tube, with one end of the stirring paddle (44) fixedly connected to the center of the second connecting plate (43).

Images