Blockage removal oil extraction device
By designing a vibration plate set and an ultrasonic generator to deblock the oil production device, the problem of blockage of the well fluid in the oil layer is solved, and the effect of efficient deblocking and wax removal is achieved, avoiding the use of chemical agents and environmental pollution.
Patent Information
- Application Number
- CN202421741107.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The prior art is difficult to effectively remove the well fluid in the oil layer during oil production, resulting in a decrease in permeability, an increase in flow resistance, a decrease in oil output, and conventional wax removal methods consume a large amount of chemical agents and cause pollution to the environment.
A deblocking and oil production device is designed to generate vibration waves and ultrasonic waves through the vibrating plate set, combined with a resonant wax removal mechanism, and power is provided by the movement of the oil pump to achieve the boosting rate of well fluid and ultrasonic emulsification, so as to achieve the effect of deblocking and wax removal.
It achieves efficient and energy-saving and environmentally friendly oil production effects, and can simultaneously unblock the well fluid drawn into the oil collector and oil layer, avoiding the use of chemical agents and environmental pollution.
Smart Images
Figure CN223119893U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an oil production device, in particular to a plug removal oil production device. Background Art
[0002] The wax-containing crude oil in China is very rich. According to statistics, the wax content of 90% of the crude oil is between 20% and 40%. For heavy oil wells with high water content, wax-prone oil wells, and oil wells with high salinity of the produced fluid being an oil-water mixture, it is necessary to take measures to prevent wax and remove wax, and prevent scale and remove scale throughout the oil production process. At present, the oil production plants in the Yanchang Oilfield adopt the conventional hot washing method to remove wax. The consumption of the washing liquid is large, and it is easy to cause environmental pollution. This method can only remove wax from the well fluid that has been pumped into the oil production device, but removing wax too quickly during the production process is likely to cause accidents such as pump jamming and rod jamming. For the well fluid still stored in the formation, the oil well acid method is usually used to remove the plug, but this method will cause secondary pollution to the well fluid in the formation, and the oil holes on the oil production device body are also easy to be blocked. Once blocked, the machine needs to be stopped and the plug is removed manually.
[0003] At present, the existing wax removal technologies mainly include the following several types:
[0004] (1) Chemical method: The chemical method mainly injects chemical wax inhibitors and chemical wax removers into the oil well. The chemical agents react with the substances in the crude oil to generate heat energy, thereby dissolving the paraffin.
[0005] (2) Thermal wax removal: Thermal wax removal is to heat the accumulated wax to make it soften and melt by heating, and finally it is carried out by the oil flow to achieve the purpose of wax prevention and removal.
[0006] (3) Strong magnetic wax prevention: The principle is that the magnetic field can extend far in the pipeline. After the magnetic field acts on the fluid, it can change the molecular arrangement structure, make the disordered molecular clusters become polarized and stable molecular clusters, neutralize the paraffin molecules, and make it lose the ability to precipitate out of the solution, so as to achieve the purpose of wax prevention.
[0007] (4) Acoustic wave wax and scale prevention method: Acoustic wave wax and scale prevention is a new type of physical wax and scale prevention method; this method mainly inhibits the precipitation of paraffin and scale by a series of mechanical effects of acoustic waves on the produced fluid in the oilfield; when acoustic waves propagate in a liquid, mechanical effects, cavitation effects, and thermal effects can be generated; among them, the cavitation effect of acoustic waves is that acoustic waves can generate tiny bubbles in the liquid, and under the stretching and compression of acoustic waves, when the bubbles reach a certain limit, they will burst; this bursting phenomenon can generate local high temperature and high pressure and intense micro-jet impact effects, which can well keep paraffin and various crystals in a dispersed state in the liquid and make them not easy to grow and deposit.
[0008] (5) Mechanical method: Using mechanical devices to fully emulsify the produced fluid in the oil well underground.
[0009] (6) Emulsification technology: There are two main technical methods currently used, one is ultrasonic emulsification, and the other is high-speed mechanical stirring emulsification; the mechanism of ultrasonic emulsification is: under the action of strong ultrasonic waves, a large number of bubbles will be generated in the liquid, and the small bubbles will gradually grow and increase with the ultrasonic vibration, and then suddenly burst and split, and the bubbles after splitting will continue to grow and burst; when these small bubbles collapse rapidly, high temperature and high pressure are generated in the bubbles, and because the liquid around the bubbles rushes into the bubbles at high speed, a strong local shock wave is generated in the liquid near the bubbles, and local high temperature and high pressure are also formed, thereby producing ultrasonic crushing and emulsification. The prerequisite for ultrasonic emulsification is the need to generate ultra-strong ultrasonic waves; the mechanism of high-speed mechanical stirring emulsification is: the stirring element generates strong kinetic energy with its extremely high linear speed and high-frequency mechanical effect, so that the emulsified material is subjected to shearing, centrifugal extrusion, liquid layer friction, impact tearing and turbulence in the extremely small gap between the moving part and the fixed part, thereby achieving the effect of dispersion, grinding and emulsification. The prerequisite for high-speed mechanical emulsification is that the moving parts rotate at an extremely high speed. Practice has shown that the number of revolutions of the moving parts needs to reach several thousand or even tens of thousands of revolutions per minute; the moving parts and the fixed parts need to be precisely matched to ensure that the gap between the moving parts and the fixed parts is small enough.
[0010] Most of the above wax removal methods are only for wax removal and cleaning of well fluid that has been pumped into the oil production device, but less for wax removal and cleaning of well fluid in the oil layer; however, due to the increase in mining intensity and time, the formation pressure gradually decreases, which often reduces the permeability of the oil layer, increases the flow resistance, reduces the oil output, and slows down the oil production rate, thereby affecting the overall oil production.
[0011] Some oil recovery methods use the method of adding chemical agents, which react with substances in the crude oil to generate heat, thereby removing blockages and wax. This method not only consumes a large amount of chemical agents, but also pollutes the well fluid and the environment. Summary of the invention
[0012] The technical problem to be solved by the utility model is: to provide a blockage-removing oil production device in order to solve the problems existing in the prior art.
[0013] The utility model solves the technical problem by adopting the following technical scheme: an unblocking oil production device, wherein a weighted oil pipe is arranged at the bottom of the unblocking oil production device, a vibrating plate with an oil inlet is arranged at the upper end of the weighted oil pipe, the vibrating plate can be slidably sleeved on the unblocking piston pipe up and down, and a reverse diameter reducing piston is arranged outside the unblocking piston pipe;
[0014] A plugging removal piston is arranged in the plugging removal piston pipe. The plugging removal piston rod at the lower end of the plugging removal piston assembly is connected to the vibrating disk. A vibrating vane group is arranged outside the vibrating disk. The rear section of the plugging removal piston pipe has a limiting chamber. The bottom of the limiting chamber has an inlet. The plugging removal piston at the upper end of the plugging removal piston assembly is arranged in the limiting chamber. When the plugging removal piston moves upward or downward, it impacts the top or bottom of the limiting chamber, causing the vibrating vane group to generate vibration waves.
[0015] Furthermore, a spiral flow channel is opened in the side wall of the limiting chamber. There is a spiral vane surrounding the limiting chamber in the spiral flow channel. There is a throat pipe communicating with the spiral flow channel in the upper wall of the limiting chamber. The inlet of the spiral flow channel is located in the lower part of the limiting chamber. The outlet end of the spiral flow channel communicates with the inlet of the throat pipe. A one-way valve is arranged at the inlet of the limiting chamber. A liquid whistle reed is arranged directly above the outlet of the throat pipe. When the plugging removal piston moves downward, well fluid enters the throat pipe through the spiral flow channel, is pressurized and accelerated, and impacts the liquid whistle reed to generate sound, producing ultrasonic waves.
[0016] A positive diameter-changing piston is arranged on the outer side of the upper section of the plugging removal piston pipe.
[0017] Furthermore, a joint is arranged at the upper end of the plugging removal piston pipe. The joint is connected to the lower joint of the resonance wax removal mechanism. The resonance wax removal mechanism includes a lower joint. A mixer is arranged at the upper end of the lower joint. A jet generator is arranged at the upper end of the mixer. A harmonic multiplication pulse generator is arranged at the upper end of the jet generator. An ultrasonic generator is arranged at the upper end of the harmonic multiplication pulse generator. A strong magnet is arranged at the upper end of the ultrasonic generator. An upper joint is arranged at the upper end of the strong magnet. A screen pipe is arranged at the upper end of the upper joint. The upper end of the screen pipe is connected to the tubing through a pump barrel.
[0018] Furthermore, a positive one-way valve is arranged in the joint to block the well fluid from flowing back from the joint to the plugging removal piston pipe when the device moves upward.
[0019] Furthermore, the number of the vibrating vane groups is multiple groups. Each group of vibrating vane groups is composed of several metal sheets with different thicknesses.
[0020] Furthermore, the lower end of the jet generator connected to the mixer is a concave end face. A jet fine hole with a wider lower part and a narrower upper part is opened at the upper end of the concave end face.
[0021] Furthermore, the lower end of the harmonic multiplication pulse generator connected to the jet generator is a liquid inlet with a wider lower part and a narrower upper part. A turbine shaft is arranged at the upper end of the liquid inlet. A rotating intercepting block is arranged at the upper end of the turbine shaft. A fixed intercepting block is arranged at the upper end of the rotating intercepting block. A resonance enhancing part is arranged at the upper end of the fixed intercepting block. The resonance enhancing part has an outlet resonance cavity. The upper end of the resonance enhancing part is a liquid outlet with a narrower lower part and a wider upper part.
[0022] Further, the lower end of the ultrasonic generator connected to the harmonic multiplication pulse generator has a plurality of partitions arranged at intervals from bottom to top. The partitions are provided with well fluid channels that are wider at the bottom and narrower at the top. The upper ends of the well fluid channels are provided with oscillator groups at intervals.
[0023] Further, the lower end of the strong magnet connected to the ultrasonic generator is a front connection port that is wider at the bottom and narrower at the top. A magnet sleeve is provided at the upper end of the connection port. Permanent magnets are arranged at intervals inside the magnet sleeve, and a spacer sleeve is arranged between adjacent permanent magnets. The upper end of the strong magnet is a rear connection port that is wider at the bottom and narrower at the top.
[0024] The beneficial effects of the present utility model are as follows: A plugging removal and oil production device of the present utility model has the characteristics of simple structure, high productivity, energy conservation and environmental protection, and good plugging removal effect.
[0025] In the present utility model, the movement of the plugging removal piston in the oil production equipment causes collisions, which makes the vibration piece group generate vibrations, thereby playing a role in plugging removal for the well fluid in the oil layer.
[0026] The well fluid in a plugging removal and oil production device flows in the equipment, enters the throat through the spiral flow channel to increase pressure and speed, impacts the liquid whistle reed piece, generates ultrasonic waves, and continues to act on the well fluid in the oil layer to play a role in plugging removal.
[0027] When the oil extraction pump is in the suction state, the well fluid passes through the mixer, harmonic multiplication generator, ultrasonic generator and strong magnet in the equipment to achieve the best emulsification effect.
[0028] This oil production equipment does not consume any electricity, is energy-saving and environmentally friendly. The power of this equipment is provided by the well fluid pressure caused by the movement of the plunger of the oil extraction pump and the elastic change of the oil pipe.
[0029] The present utility model can not only carry out plugging removal and wax removal on the well fluid pumped into the oil extraction pump and the oil pipe through the wax prevention method of harmonic multiplication oscillation, but also carry out plugging removal and wax removal on the well fluid in the oil layer through the vibration and ultrasonic waves provided by the plugging removal and oil production equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The present utility model will be further described below with reference to the drawings and embodiments.
[0031] Figure 1 is a schematic structural diagram of the front section of the present utility model.
[0032] Figure 2 is Figure 1 the enlarged view of part A in
[0033] Figure 3 is a schematic structural diagram of the rear section of the present utility model.
[0034] Figure 4 is Figure 3 the schematic structural diagram of the jet generator in
[0035] Figure 5 is Figure 3 a schematic structural diagram of a harmonic multiplication pulse generator.
[0036] Figure 6 is Figure 3 a schematic structural diagram of an ultrasonic generator.
[0037] Figure 7 is Figure 3 a schematic structural diagram of a strong magnetizer.
[0038] In the figure: 1. counterweight oil pipe, 2. vibrating disk, 3. oil inlet, 4. plug removal piston pipe, 5. oil sheath, 6. reverse variable diameter piston, 7. plug removal piston, 8. vibration piece group, 9. limiting chamber, 10. spiral flow channel, 11. one-way valve, 12. outlet, 13. liquid whistle reed, 14. forward variable diameter piston, 15. joint, 16. lower joint, 17. mixer, 18. jet generator, 19. harmonic multiplication pulse generator, 20. ultrasonic generator, 21. strong magnetizer, 22. upper joint, 23. screen pipe, 24. forward check valve, 25. throat pipe, 26. jet fine hole, 27. liquid inlet, 28. concave end face, 29. turbine shaft, 30. front limiting block, 31. rear limiting block, 32. rotating shut-off block, 33. fixed shut-off block, 34. resonance enhancement member, 35. outlet resonance cavity, 36. liquid outlet, 37. partition board, 38. well fluid flow channel, 39. oscillator group, 40. front connection port, 41. magnet sleeve, 42. permanent magnet, 43. spacer sleeve, 44. rear connection port, 45. end cover. Specific embodiments
[0039] The present invention will now be further described in detail with reference to the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.
[0040] As Figures 1 to 7 shown, a plug removal oil production device is arranged in the oil sheath 5 and reciprocates up and down in the oil sheath 5.
[0041] Among them Figure 1 and Figure 2At the very front of a plugging removal and oil production device, a weighted tubing 1 is provided. A plug is installed at the lower end of the weighted tubing 1. The plug is a soft metal wire plug. The upper end of the weighted tubing 1 is connected to a vibrating disk 2. An oil inlet 3 is provided on the side of the vibrating disk 2. The vibrating disk 2 is slidably sleeved on a plugging removal piston tube 4, so that the vibrating disk 2 can reciprocate up and down along the wall of the plugging removal piston tube 4 for a certain distance. An inverse diameter-changing piston 6 is arranged outside the plugging removal piston tube 4, which can close the annular space of the oil casing 5 when the device moves downward. The inverse diameter-changing piston 6 does not play a role in closing the annular space of the oil casing 5 when the device moves upward.
[0042] A plugging removal piston assembly is installed in the plugging removal piston tube 4. The plugging removal piston assembly includes a plugging removal piston rod and a plugging removal piston 7. The plugging removal piston rod is connected to the vibrating disk 2. The plugging removal piston rod reciprocates up and down in the plugging removal piston tube 4 as the vibrating disk 2 moves. Vibration piece groups 8 are machined on the outside of the vibrating disk 2. There is a limiting chamber 9 in the rear section of the plugging removal piston tube 4. The bottom of the limiting chamber 9 has an inlet. The plugging removal piston 7 is arranged in the limiting chamber 9. When the plugging removal piston 7 moves upward or downward, it impacts the top or bottom of the limiting chamber 9, causing the vibration piece groups 8 to generate vibration waves. The number of vibration piece groups 8 is multiple groups, and each group of vibration piece groups is composed of several metal pieces with different thicknesses.
[0043] A spiral flow channel 10 is provided in the side wall of the limiting chamber 9. There are spiral fins surrounding the limiting chamber 9 in the spiral flow channel 10. A throat tube 25 communicating with the spiral flow channel 10 is provided in the upper wall of the limiting chamber 9. The inlet of the spiral flow channel 10 is located at the lower part of the limiting chamber 9. The outlet end of the spiral flow channel 10 communicates with the inlet of the throat tube 25. A check valve 11 is provided at the inlet at the bottom of the limiting chamber 9. The throat tube 25 converges from the outside to the center. A liquid whistle reed piece 13 is provided directly above the outlet 12 of the throat tube 25. When the plugging removal piston 7 moves downward, well fluid enters the throat tube 25 through the spiral flow channel 10, is pressurized and accelerated, and then impacts the liquid whistle reed piece 13 to generate sound, producing ultrasonic waves.
[0044] A forward diameter-changing piston 14 is arranged outside the upper section of the plugging removal piston tube 4, which blocks the well fluid from flowing back into the well from the oil casing 5 oil path when the device moves upward. The check direction of the forward diameter-changing piston 14 is opposite to that of the inverse diameter-changing piston 6.
[0045] Among them Figure 3 and Figure 7 As shown, in order to further improve the plugging removal effect, a plugging removal and oil production device of the present utility model also has a resonance wax removal mechanism. A joint 15 is provided at the upper end of the plugging removal piston tube 4 for connecting with the lower joint 16 of the resonance wax removal mechanism. A forward check valve 24 that blocks the well fluid from flowing back from the joint 15 to the plugging removal piston tube 4 when the device moves upward is provided in the joint 15.
[0046] The resonant dewaxing mechanism includes a lower joint 16. A mixer 17 is arranged at the upper end of the lower joint 16. A jet generator 18 is arranged at the upper end of the mixer 17. The lower end of the jet generator 18 connected to the mixer 17 is a concave end face 28. A jet orifice 26 with a wider lower part and a narrower upper part is opened at the upper end of the concave end face 28.
[0047] An harmonic multiplication pulse generator 19 is arranged at the upper end of the jet generator 18. The lower end of the harmonic multiplication pulse generator 19 connected to the jet generator 18 is a liquid inlet 27 with a wider lower part and a narrower upper part. A turbine is arranged at the upper end of the liquid inlet 27. A front limit block 30 and an end cover 45 are arranged at the lower end of a turbine shaft 29 of the turbine. A rear limit block 31 is arranged on the upper section of the turbine shaft 29. The front limit block 30, the end cover 45 and the rear limit block 31 are used for the installation of the turbine. A rotary shut-off block 32 is arranged at the upper end of the turbine shaft 29. A fixed shut-off block 33 is arranged at the upper end of the rotary shut-off block 32. A resonance enhancement part 34 is arranged at the upper end of the fixed shut-off block 33. The resonance enhancement part 34 has an outlet resonance cavity 35. The upper end of the resonance enhancement part 34 is a liquid outlet 36 with a narrower lower part and a wider upper part. The oil-gas-water mixed-phase flow ejected from the jet orifice 26 in the jet generator 18 enters the harmonic multiplication pulse generator 19. The steady oil-gas-water mixed-phase flow passes through the liquid inlet 27, the turbine shaft 29, the rotary shut-off block 32, the fixed shut-off block 33, the resonance enhancement part 34 and the liquid outlet 36, so that the steady liquid flow forms an oscillating pulse liquid flow and is discharged after passing through the harmonic multiplication pulse generator19.
[0048] An ultrasonic generator 20 is arranged at the upper end of the harmonic multiplication pulse generator 19. The lower end of the ultrasonic generator 20 connected to the harmonic multiplication pulse generator 19 has a plurality of partition plates 37 arranged at intervals from bottom to top. A well liquid flow channel 38 with a wider lower part and a narrower upper part is opened on the partition plate 37. An oscillator group is arranged at intervals at the upper end of the well liquid flow channel 38. After the well liquid passes through the harmonic multiplication pulse generator 19, the well liquid changes into an oscillating pulse liquid and enters the ultrasonic generator 20. A strong magnet 21 is arranged at the upper end of the ultrasonic generator 20. The well liquid continuously passes through the ultrasonic generator 20 to provide energy for the ultrasonic generator 20 to generate ultra-high frequency resonance. Subsequently, the oscillating pulse liquid flows into the strong magnet 21. The oscillator group 39 in the ultrasonic generator 20 is formed by superimposing a group of vibration reed sheets. The group of vibration reed sheets is composed of a plurality of vibration reed sheets. The well liquid impacts the group of vibration reed sheets through the well liquid flow channel 38 of the ultrasonic generator 20, so that the group of vibration reed sheets obtains pulse energy and generates high-frequency resonance.
[0049] The front end of the strong magnetizer 21 connected to the ultrasonic generator 20 is a front connection port 40 that is wider at the bottom and narrower at the top. A magnet sleeve 41 is provided at the upper end of the connection port 40. Permanent magnets 42 are arranged at intervals before and after inside the magnet sleeve 41. A spacer sleeve 43 is arranged between two adjacent permanent magnets 42. The upper end of the strong magnetizer 21 is a rear connection port 44 that is wider at the bottom and narrower at the top. After the well fluid passes through the ultrasonic generator 20, it enters the strong magnetizer 21. The magnetic field in the strong magnetizer 21 can extend far in the pipeline. After the magnetic field acts on the well fluid, it can change the molecular arrangement structure of the well fluid itself, make the chaotic molecular clusters of the well fluid itself become polarized stable molecules, neutralize the paraffin molecules in the well fluid itself, and make it lose the ability to separate from the solution and precipitate. Thus, the well fluid pumped into the oil pump and oil pipe does not produce wax, achieving the purpose of wax prevention.
[0050] An upper joint 22 is provided at the upper end of the strong magnetizer 21, and a screen pipe 23 is provided at the upper end of the upper joint 22. The upper end of the screen pipe 23 is connected to the oil pipe through a pump barrel.
[0051] The working process is as follows:
[0052] When the plunger of the sucker rod pump moves downward, the oil pipe is elastically elongated and drives this device to move downward. At this time, since the reverse diameter-changing piston 6 blocks the annular space of the casing 5, the downward movement of this device will inevitably squeeze the lower well fluid, forcing the pressurized well fluid to spray upward through the oil inlet 3, pushing the plugging removal piston 7 upward, causing the counterweight oil pipe 1 and the vibration disk 2 to move upward and store gravitational potential energy. When the plugging removal piston 7 moves upward to the top of the limit chamber 9, an impact occurs, generating vibration waves.
[0053] After the elastic elongation of the oil pipe ends, this device stops moving downward. The counterweight oil pipe 1 and the vibration disk 2 in the upper position fall by their own weight, releasing gravitational potential energy and generating kinetic energy. When the counterweight oil pipe 1 falls, it pulls the plugging removal piston 7 downward, forming a low-pressure area above the plugging removal piston 7, promoting the formation of negative pressure at the bottom of the well and generating a suction effect.
[0054] At the same time, because the bottom of the limit chamber 9 has an inlet blocked by a check valve 11, the well fluid below the plugging removal piston 7 is pushed into the spiral flow channel 10 through the inlet of the spiral flow channel 10. The well fluid flows from bottom to top in the spiral flow channel 10, and then enters the throat pipe 25 to be pressurized and accelerated, impacting the liquid whistle reed 13 to generate ultrasonic waves, and then continuing to act on the oil layer outside the vibration source.
[0055] When the plugging removal piston 7 falls to the bottom of the limit chamber 9, an impact occurs again, generating vibration waves and playing a role in plugging removal.
[0056] When the plunger of the oil pump moves upward, the tubing unloads and shrinks, driving this device to move upward. At this time, the forward check valve 24 closes, and the forward variable-diameter piston 14 blocks the oil path of the oil casing 5. The upward movement of this device is bound to suck the lower well fluid, creating a negative pressure at the bottom of the well again; the two suction effects are superimposed, further ensuring the effect of the suction force; thus, a pulsation cycle is completed.
[0057] When the plunger of the oil pump moves upward, the well fluid pumped into the harmonic wax removal mechanism sequentially passes through the mixer 17, the jet generator 18, the harmonic multiplication pulse generator 19, the ultrasonic generator 20, and the strong magnet 21.
[0058] After the well fluid enters the harmonic wax removal mechanism, it becomes an oil-gas-water mixed-phase flow through the rotating rotor in the mixer 17. The changed oil fluid is atomized by the jet generator 18. The design of the concave end face 28 of the jet generator 18 makes it easier to obtain the oil-gas-water mixed-phase flow formed by the mixer 17. The design of the jet orifice 26 of the jet generator 18 can accelerate and pressurize the formed oil-gas-water mixed-phase flow into the harmonic multiplication pulse generator 19.
[0059] The steady oil-gas-water mixed-phase flow passes through the liquid inlet 27, the turbine, the rotating intercepting block 32, the fixed intercepting block 33, the harmonic enhancement part 34, and the liquid outlet 36, so that the steady liquid flow forms an oscillating pulse liquid flow and is discharged after passing through the harmonic multiplication pulse generator 19.
[0060] After the well fluid passes through the harmonic multiplication pulse generator 19, the well fluid changes into an oscillating pulse liquid and enters the ultrasonic generator 20. The well fluid continuously passes through the ultrasonic generator 20, providing energy for the ultrasonic generator 20 to generate ultra-high-frequency resonance, so that the oscillating pulse liquid flows into the strong magnet 21.
[0061] The oil fluid flow path of the well fluid passing through the ultrasonic generator 20 impacts the vibrating reed group, so that the vibrating reed group obtains pulse energy and generates high-frequency resonance.
[0062] After the oil fluid passes through the ultrasonic generator 20, it enters the strong magnet 21 device. After the magnetic field in the strong magnet 21 acts on the oil fluid, it can change the molecular arrangement structure of the oil fluid itself, make the disordered molecular clusters of the oil fluid itself become polarized stable molecules, neutralize the paraffin molecules in the oil fluid itself, make it lose the ability to separate from the solution and precipitate, so that the oil fluid pumped into the oil pump and the tubing does not produce wax, achieving the purpose of wax prevention.
[0063] What is described in the above specification is only the specific implementation manner of the present invention. Various examples do not constitute a limitation to the essence of the present invention. Those of ordinary skill in the art can make modifications or deformations to the previously described specific implementation manners after reading the specification without departing from the essence and scope of the invention.
Claims
1. A plugging removal oil production device, characterized in that: A counterweight tubing is provided at the lowermost end of a plug removal and oil production device. An oscillating disk with an oil inlet is provided at the upper end of the counterweight tubing. The oscillating disk is slidably sleeved on a plug removal piston tube. A reverse variable diameter piston is provided outside the plug removal piston tube. A plug removal piston assembly is provided in the plug removal piston tube. The plug removal piston rod at the lower end of the plug removal piston assembly is connected to the oscillating disk. A vibration plate group is provided outside the oscillating disk. The rear section of the plug removal piston tube has a limiting chamber. The bottom of the limiting chamber has an inlet. The plug removal piston at the upper end of the plug removal piston assembly is arranged in the limiting chamber. When the plug removal piston moves upward or downward, it impacts the top or bottom of the limiting chamber, causing the vibration plate group to generate vibration waves.
2. The plugging removal oil production device according to claim 1, characterized in that: A spiral flow channel is opened in the side wall of the limiting chamber. A spiral fin surrounding the limiting chamber is provided in the spiral flow channel. A throat tube communicating with the spiral flow channel is provided in the upper wall of the limiting chamber. The inlet of the spiral flow channel is located at the lower part of the limiting chamber. The outlet end of the spiral flow channel communicates with the inlet of the throat tube. A one-way valve is provided at the inlet of the limiting chamber. A liquid whistle reed is provided directly above the outlet of the throat tube. When the plug removal piston moves downward, well fluid enters the throat tube through the spiral flow channel, is pressurized and accelerated, and impacts the liquid whistle reed to generate sound, producing ultrasonic waves. A forward variable diameter piston is provided outside the upper section of the plug removal piston tube.
3. The plugging removal oil production device according to claim 1, characterized in that: A joint is provided at the upper end of the plug removal piston tube. The joint is connected to the lower joint of a resonance wax removal mechanism. The resonance wax removal mechanism includes a lower joint. A mixer is provided at the upper end of the lower joint. A jet generator is provided at the upper end of the mixer. A harmonic multiplication pulse generator is provided at the upper end of the jet generator. An ultrasonic generator is provided at the upper end of the harmonic multiplication pulse generator. A strong magnet is provided at the upper end of the ultrasonic generator. An upper joint is provided at the upper end of the strong magnet. A screen pipe is provided at the upper end of the upper joint. The upper end of the screen pipe is connected to the tubing through a pump barrel.
4. The plugging removal oil production device according to claim 3, characterized in that: A forward one-way valve that blocks well fluid from flowing back from the joint to the plug removal piston tube when the device moves upward is provided in the joint.
5. The plugging removal oil production device according to claim 1, wherein: The number of the vibration plate groups is multiple. Each vibration plate group is composed of several metal plates with different thicknesses.
6. The plugging removal oil production device according to claim 3, wherein: The lower end of the jet generator connected to the mixer is a concave end face. A jet fine hole with a wider lower part and a narrower upper part is opened at the upper end of the concave end face.
7. The plugging removal oil production device according to claim 3, wherein: The lower end of the harmonic multiplication pulse generator connected to the jet generator is a liquid inlet with a wider lower part and a narrower upper part. A turbine shaft is provided at the upper end of the liquid inlet. A rotating intercepting block is provided at the upper end of the turbine shaft. A fixed intercepting block is provided at the upper end of the rotating intercepting block. A resonance enhancing member is provided at the upper end of the fixed intercepting block. The resonance enhancing member has an outlet resonance cavity. The upper end of the resonance enhancing member is a liquid outlet with a narrower lower part and a wider upper part.
8. The plugging removal oil production device according to claim 3, wherein: The lower end of the ultrasonic generator connected to the harmonic multiplication pulse generator has multiple partitions arranged at intervals from bottom to top. A well fluid flow channel with a wider lower part and a narrower upper part is opened on the partition. An oscillator group is arranged at intervals at the upper end of the well fluid flow channel.
9. The plugging removal oil production device according to claim 3, characterized in that: The lower end of the strong magnet connected to the ultrasonic generator is a front connection port with a wider lower part and a narrower upper part. A magnet sleeve is provided at the upper end of the connection port. Permanent magnets are arranged at intervals up and down inside the magnet sleeve. A spacer sleeve is provided between adjacent two permanent magnets. The upper end of the strong magnet is a rear connection port with a wider lower part and a narrower upper part.