Downhole sludge on-site continuous treatment device suitable for oil exploitation

Abstract

The invention relates to the technical field of oil exploitation, in particular to an underground sludge on-site continuous treatment device suitable for oil exploitation, which comprises an oil extraction barrel and a partition plate in the oil extraction barrel, a delivery pipe is connected between the partition plate and the oil extraction barrel, a guide type plugging assembly is arranged at the top of the delivery pipe, and a filter cover is mounted at the bottom of the oil extraction barrel. A scattering type blocking and sealing assembly is arranged in the filtering cover; the guiding type plugging and sealing assembly and the scattering type plugging and sealing assembly are combined through the oil extraction assembly, efficient extraction and extraction treatment can be conducted on oil containing impurities, and a hydraulic transmission system is formed through combination of the oil and the guiding type plugging and sealing assembly and the scattering type plugging and sealing assembly; a scattering type blocking and sealing assembly is assisted, sludge in oil liquid is subjected to multi-stage type crushing treatment, a filtering cover is dredged from inside to outside, and sludge impurities are prevented from being precipitated through a guiding type blocking and sealing assembly; the linkage collection type sludge removal assembly realizes isolated continuous collection treatment on the filtered sludge, and continuous accumulation of the sludge is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of oil production, and in particular to an on-site continuous treatment device for underground sludge in oil production. Background Art

[0002] In the field of oil extraction, especially in the extraction process of deep oil wells, the internal environment of the oil wells is complex and the oil extraction operation faces many challenges. When direct pumping is used to extract oil, the oil inlet pipe goes deep into the bottom of the oil well, resulting in a large amount of mud, impurities and viscous oil mixed in the extracted oil. Especially in the deep area of ​​the oil well, the ratio of oily sludge to high-viscosity oil increases significantly, which not only significantly reduces the oil extraction efficiency, but also easily causes blockage of the oil extraction pipeline, thereby affecting the normal operation of the equipment.

[0003] For example, a high-efficiency extraction device for oil extraction with publication number CN108005616A extracts and transports oil through an oil extraction spiral rotating in a liquid extraction cylinder assembly. It can extract viscous oil and oil containing silt, and filter out sludge impurities in the oil to avoid pipeline blockage and improve the quality of oil extraction. However, the filtered sludge impurities are always located in the filter cartridge body on the oil delivery path. As the extraction time increases, the sludge impurities inside the filter cartridge body continue to accumulate. Although a stirring impeller is provided in the device to slow down the speed at which the sludge wraps around the filter cartridge body, it is still difficult to fundamentally solve the problem of rapid accumulation of sludge impurities, which leads to low extraction efficiency in the later stage. Summary of the invention

[0004] The purpose of the present invention is to provide a device for continuous on-site treatment of underground sludge in oil production to solve the above-mentioned technical defects.

[0005] The purpose of the present invention can be achieved through the following technical solutions: a device for continuous on-site treatment of underground sludge in oil production, comprising an oil production cylinder, and a partition fixedly connected to the inside of the oil production cylinder, a delivery pipe fixedly connected between the partition and the bottom of the oil production cylinder, a guide-type plugging assembly is arranged on the top of the delivery pipe, an oil suction port is opened through the bottom of the oil production cylinder, and a filter cover is fixedly installed, a scattered plugging assembly is arranged inside the filter cover, and a collecting mud removal assembly and an oil production assembly are respectively arranged inside the oil production cylinder and on both sides of the top and bottom of the partition; The collecting type mud removal assembly comprises a mud collecting barrel fixedly installed in the oil production cylinder body, a rotating disk is rotatably installed on the top of the mud collecting barrel, and a plurality of oil delivery cavities are opened through the top of the rotating disk, a wave filter is installed in the oil delivery cavity, and a mud inlet is opened on one side of the top of the mud collecting barrel.

[0006] Preferably, a connecting port 1 is provided on the annular side wall of the mud collecting barrel, a connecting port 2 cooperating with the connecting port 1 is provided through one side of the oil delivery cavity, and two groups of elastic plates distributed in an octave are fixedly connected inside the connecting port 2.

[0007] Preferably, a plurality of trapezoidal grooves are equidistantly provided on the annular outer wall of the rotating disk, a plurality of movable columns are slidably mounted on the annular inner wall of the oil production cylinder, and an auxiliary spring is fixedly connected between the movable columns and the oil production cylinder.

[0008] Preferably, a rotating sleeve rotatably connected to the mud collecting barrel is fixedly connected to the bottom of the rotating disk, and a plurality of oblique grooves are equidistantly provided on the annular outer wall of the rotating sleeve, a vertical groove is provided between two adjacent groups of the oblique grooves, a guide block is fixedly connected inside the vertical groove, and a scraper plate is fixedly connected to the rotating sleeve.

[0009] Preferably, the guided sealing assembly includes a convex blocking block located at the top of the conveying pipe, and the top of the convex blocking block is fixedly connected to a mounting plate, the bottom of the mounting plate is provided with an arc-shaped drainage groove, and the top of the mounting plate is fixedly connected to a guide rod that slides with the mud collecting barrel seal.

[0010] Preferably, a return spring is fixedly connected between the mounting plate and the mud collecting barrel, a spring pin is fixedly installed on the guide rod, one side of the top of the oil production barrel is fixedly connected to an oil pipe with a one-way valve inside, and a mud discharge port that passes through the oil production barrel is opened at the bottom of one side of the mud collecting barrel.

[0011] Preferably, the oil production assembly comprises a piston block slidably connected between the delivery pipe and the oil production cylinder, a reciprocating screw threadedly connected to the piston block is rotatably connected inside the oil production cylinder, and oil inlets are provided at the bottom of both sides of the delivery pipe.

[0012] Preferably, a spline shaft is rotatably mounted on the bottom of the oil production cylinder, and sprockets are mounted on the spline shaft and the reciprocating screw rod, the sprockets are connected via a chain drive, and the end of the spline shaft passes through the outside of the filter cover and is mounted with a stirring rod.

[0013] Preferably, the broken-up sealing assembly includes a sealing block arranged in the oil suction port, and a vertical rod is fixedly connected to the bottom of the sealing block, a U-shaped plate sliding with the vertical rod is welded to the bottom of the oil production cylinder, a mounting frame slides on the spline shaft, and bristles are fixedly provided on the bottom of the mounting frame, the top of the mounting frame is rotatably connected to a mounting ring fixed to the vertical rod, and a reset spring 2 is connected between the mounting ring and the U-shaped plate.

[0014] The beneficial effects of the present invention are as follows: The present invention combines a reciprocating piston block with a convex block and a plugging block, which can not only realize efficient extraction and treatment of impure oil liquids of different viscosities in the oil well, but also form a hydraulic transmission system with the help of the flow of oil liquid in the oil production cylinder, assist the movement of the convex block and the plugging block, and promote the intermittent deflection of the rotating disk and the reciprocating lifting and lowering of the mounting frame; through the intermittent deflection of the rotating disk, multiple oil delivery chambers are used alternately, and the movable column is used to impact and vibrate the trapezoidal groove, while the impure oil liquid in the oil well is extracted by efficient filtering, and the filtered sludge is simultaneously isolated and continuously collected and treated, thereby avoiding the problem of continuous accumulation of sludge and reduced extraction efficiency; The present invention promotes the brush hairs to penetrate into the filter holes of the filter cover by lifting the mounting frame, so as to realize the dredging treatment from the inside to the outside of the impurities blocked in the filter holes of the filter cover, and further ensure the efficient extraction and treatment of the oil by the device. In addition, by means of the spline shaft driving the rotation of the mounting frame and combining with the stirring rod, the viscous oil or oil sludge in the oil well can be subjected to multi-stage stirring and crushing treatment, effectively preventing the accumulation of a large volume of sludge in the oil production cylinder and affecting the oil production efficiency; and, through the arc-shaped drainage groove provided on the mounting plate, during the oil extraction and transportation process, the impure oil liquid impacts the top of the partition plate, thereby performing a disturbing mixing treatment on the impure oil liquid, so as to avoid the problem that the sludge is precipitated into the oil production cylinder and is difficult to be discharged, affecting the oil production efficiency; The present invention also uses the elastic effect of a pair of return springs on the blocking blocks, so that during the initial rise of the piston block to suck oil, part of the impure oil in the delivery pipe is extracted, the auxiliary convex blocking block resets and blocks the delivery pipe, and combined with the one-way valve in the oil pipe, it can suck back the excess oil in the oil delivery chamber, avoiding the problem that the oil in the oil delivery chamber cannot move up and discharge and enters the mud collecting barrel, resulting in the inability to collect sludge in the later stage of extraction, and continuous accumulation in the oil delivery chamber to reduce the extraction efficiency; in addition, when the excess oil is sucked back, combined with the resistance of the ends of the two groups of elastic plates, the sucking back of sludge impurities can be limited, thereby improving the continuous collection and treatment effect of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings; Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the oil production cylinder of the present invention; Figure 3 The structure of the oil extraction cylinder of the present invention is shown in FIG. Figure 1 ; Figure 4 The structure of the oil extraction cylinder of the present invention is shown in FIG. Figure 2 ; Figure 5 It is a structural schematic diagram of the guided plugging and sealing assembly of the present invention; Figure 6 It is a schematic diagram of the cooperation between the guided plugging assembly and the mud collecting barrel of the present invention; Figure 7 It is a structural schematic diagram of the rotating disk of the present invention; Figure 8 It is a schematic diagram of the cooperation between the guide-type plugging and sealing assembly and the rotating sleeve of the present invention; Fig. 9 It is a schematic diagram of the structure of the collecting type mud removal assembly of the present invention; Fig.10 It is a structural schematic diagram of the oil production assembly of the present invention; Fig.11 It is a structural schematic diagram of the scattered plugging and sealing assembly of the present invention; Fig.12 It is a schematic diagram of the cooperation between the oil production component and the scattered plugging component of the present invention; Fig.13 It is a flow diagram of the impure oil liquid on the filtering path of the present invention.

[0016] Legend: 1. Oil production cylinder; 11. Partition plate; 12. Delivery pipe; 13. Filter cover; 14. Active column; 15. Auxiliary spring; 16. Oil delivery pipe; 2. Guided plugging assembly; 21. Convex plugging block; 22. Mounting plate; 23. Arc-shaped drainage groove; 24. Guide rod; 25. Reset spring 1; 3. Break-up type plugging and sealing assembly; 31. Plug-sealing block; 32. Vertical rod; 33. U-shaped plate; 34. Mounting frame; 35. Reset spring 2; 4. Collecting type mud removal assembly; 41. Mud collecting cylinder; 42. Rotating disk; 43. Oil delivery chamber; 44. Wave filter; 45. Mud inlet; 46. Connecting port 1; 47. Connecting port 2; 48. Elastic plate; 49. Trapezoidal groove; 410. Rotating sleeve; 411. Mud scraper; 412. Mud discharge port; 5. Oil production assembly; 51. Piston block; 52. Reciprocating screw; 53. Spline shaft; 54. Sprocket; 55. Chain; 56. Agitator rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1-Figure 10As shown, in view of the fact that the sludge impurities in the prior art are constantly accumulated inside the filter cartridge body, it is difficult to fundamentally solve the problem that the sludge impurities quickly accumulate and wrap the filter cartridge body, resulting in low extraction efficiency in the later stage, which can be solved by the following solution; In this embodiment, a device for continuous on-site treatment of sludge in underground oil production is provided, which comprises an oil production cylinder 1, and a partition 11 fixedly connected to the inside of the oil production cylinder 1, which is used to divide the inside of the oil production cylinder 1 into an oil suction chamber and a sludge treatment chamber. A delivery pipe 12 is fixedly connected between the partition 11 and the bottom of the oil production cylinder 1, and a guide plugging assembly 2 is provided on the top of the delivery pipe 12; An oil suction port is provided through the bottom of the oil production cylinder 1, and a filter cover 13 is fixedly installed. The filter cover 13 is used to filter and intercept the sand and gravel that are difficult to break, so as to prevent them from entering the inside of the device through the oil suction port. A dispersing plugging assembly 3 is provided inside the filter cover 13. A collecting mud removal assembly 4 and an oil production assembly 5 are provided inside the oil production cylinder 1 and on both sides of the top and bottom of the partition 11; The collecting type mud removal assembly 4 includes a mud collecting barrel 41 fixedly installed in the oil production barrel 1, which performs isolated and continuous collection and treatment on the filtered sludge, thereby preventing the sludge from continuously accumulating on the oil delivery path and reducing the extraction efficiency. A rotating disk 42 is rotatably installed on the top of the mud collecting barrel 41, and a plurality of oil delivery cavities 43 are opened through the top of the rotating disk 42; A sealing ring is fixedly embedded on the rotating disc 42 and located outside the oil delivery chamber 43, which is used to increase the sealing performance between the rotating disc 42 and the oil production barrel 1 and the mud collecting barrel 41. With the reciprocating lifting and lowering motion of the convex block 21, the rotating disc 42 is intermittently deflected, so that multiple oil delivery chambers 43 are used alternately; The impure oil liquid in the oil well is efficiently filtered so that the filtered sludge can be collected and processed in an isolated and continuous manner during extraction, thereby avoiding the problem of continuous accumulation of sludge and reduced extraction efficiency. A wave filter 44 is installed in the oil delivery cavity 43 to filter the sludge in the extracted oil liquid, and the wave-shaped structure of the wave filter 44 is used to increase the filtering area and further improve the filtering and extraction efficiency. A mud inlet 45 is opened on one side of the top of the mud collecting barrel 41.

[0019] A communication port 1 46 is provided on the annular side wall of the mud collecting barrel 41, and a communication port 2 47 matching the communication port 1 46 is provided on one side of the oil delivery chamber 43, and two groups of elastic plates 48 distributed in an eight shape are fixedly connected inside the communication port 2 47, and the impurity oil in the oil production barrel 1 above the partition plate 11 enters the corresponding communication port 2 47 through the middle cavity of the mud collecting barrel 41 and the communication port 1 46 on the middle cavity, and pushes the ends of the two groups of elastic plates 48 distributed in an eight shape to separate and enter the corresponding oil delivery chamber 43; The sludge in the impure oil is intercepted and filtered by the wave filter 44 in the oil delivery chamber 43, and the filtered oil is discharged through the oil delivery pipe 16. When the excess oil is sucked back, the resistance at the ends of the two sets of elastic plates 48 can limit the back suction of sludge impurities, thereby improving the continuous collection and treatment effect of the sludge.

[0020] A plurality of trapezoidal grooves 49 are equidistantly provided on the annular outer wall of the rotating disk 42, a plurality of movable columns 14 are slidably mounted on the annular inner wall of the oil production cylinder 1, and an auxiliary spring 15 is fixedly connected between the movable column 14 and the oil production cylinder 1. During the rotation of the rotating disk 42, when a certain trapezoidal groove 49 on its outer wall separates from the movable column 14, the movable column 14 is pushed to move and compress the corresponding auxiliary spring 15. When the adjacent side trapezoidal groove 49 rotates to the position of the movable column 14, the movable column 14 is reset under the compression elastic force of the auxiliary spring 15 and hits the side wall of the trapezoidal groove 49, thereby forming a vibration effect on the rotating disk 42. During the rotation process, the sludge filtered on the wave filter 44 is vibrated and separated, and falls to the top of the sludge collecting barrel 41. The separated sludge is pushed to move through the side wall of the oil delivery chamber 43 until it moves to the sludge inlet 45 and enters the sludge collecting barrel 41 for collection, thereby completing the continuous filtering and collection of sludge in the oil during the oil production process.

[0021] A rotating sleeve 410 rotatably connected to the mud collecting barrel 41 is fixedly connected to the bottom of the rotating disk 42, and a plurality of oblique grooves are equidistantly provided on the annular outer wall of the rotating sleeve 410, and a vertical groove is provided between two adjacent groups of oblique grooves, and a guide block is fixedly connected to the inside of the vertical groove, and the guide block is located at the top of the oblique groove below the vertical groove, and is used to ensure that the spring pin slides in the oblique groove when it rises, and a scraper plate 411 is fixedly connected to the rotating sleeve 410, and the rotation of the rotating sleeve 410 causes the scraper plate 411 to rotate in the mud collecting barrel 41, thereby assisting in the centralized discharge of the collected sludge.

[0022] The guided sealing assembly 2 includes a convex block 21 located at the top of the delivery pipe 12, and a mounting plate 22 is fixedly connected to the top of the convex block 21, an arc-shaped drainage groove 23 is provided at the bottom of the mounting plate 22, and a guide rod 24 is fixedly connected to the top of the mounting plate 22, which is sealed and slidable with the mud collecting barrel 41. The guide rod 24 is used to limit the movement direction of the convex block 21. During the rising process of the piston block 51, the convex block 21 is prompted to seal the top of the delivery pipe 12, so that the pressure in the oil production cylinder 1 below the partition 11 is reduced, and the miscellaneous oil contained in the oil well pushes the sealing block 31 to separate from the oil suction port and is sucked into the interior of the oil production cylinder 1.

[0023] A return spring 25 is fixedly connected between the mounting plate 22 and the mud collecting barrel 41. The return spring 25 is used to assist the piston block 51 in ascending, so that the convex block 21 quickly blocks the top of the delivery pipe 12. A spring pin is fixedly installed on the guide rod 24. When the convex block 21 pushes the mounting plate 22 to ascend, the spring pin on the guide rod 24 slides in the oblique groove. The oblique groove guides the spring pin, causing the rotating disk 42 to deflect until the spring pin enters the corresponding vertical groove, so that the oil delivery chamber 43 on the adjacent side is connected with the oil delivery pipe 16. When the mounting plate 22 is reset and descended under the compression force of the return spring 25, the spring pin slides in the vertical groove to limit the deflection of the rotating disk 42. The top side of the oil production cylinder 1 is fixedly connected to an oil delivery pipe 16 with a check valve inside. As the piston block 51 rises, part of the impurity oil in the delivery pipe 12 is extracted synchronously, and the auxiliary convex block 21 resets and blocks the delivery pipe 12. Combined with the check valve in the oil delivery pipe 16, the excess oil in the oil delivery cavity 43 is sucked back. The two sets of elastic plates 48 are used to interfere with each other at the ends to limit the back suction of impurities, so as to prevent the oil in the oil delivery chamber 43 from being unable to move upward and discharge and enter the mud collecting barrel 41, resulting in the inability to collect sludge in the later stage of extraction, and the continuous accumulation in the oil delivery chamber 43 to reduce the extraction efficiency. A mud discharge port 412 penetrating the oil production cylinder body 1 is provided at the bottom of one side of the mud collecting barrel 41, and a plugging plate is bolted to the mud discharge port 412 on the oil production cylinder body 1. By opening the plugging plate on the oil production cylinder body 1 and drawing air or liquid by lifting and lowering the piston block 51, the rotating disk 42 is driven to rotate, and the scraper plate 411 is rotated in the mud collecting barrel 41 to discharge the collected sludge in a centralized manner.

[0024] The oil production assembly 5 includes a piston block 51 slidably connected between the delivery pipe 12 and the oil production cylinder 1, a reciprocating screw 52 threadedly connected to the piston block 51 is rotatably connected inside the oil production cylinder 1, oil inlets are provided at the bottom of both sides of the delivery pipe 12, a motor for driving the reciprocating screw 52 to rotate is bolted to the bottom of the partition 11, and fins are fixedly connected to the inner wall of the oil production cylinder 1 and the outer wall of the delivery pipe 12 to assist in heat dissipation of the heat generated by the motor; A sliding rod that slides with the piston block 51 is fixedly connected inside the oil production cylinder 1. A telescopic protective tube is fixedly connected between the piston block 51 and the bottom of the oil production cylinder 1 and on the outside of the sliding rod and the reciprocating screw 52. This is used to prevent the impure oil from contacting the reciprocating screw 52 and the sliding rod, which would reduce the sealing performance of the piston block 51 and make it difficult to achieve efficient oil extraction. The oil production cylinder 1 is placed in an oil well, and during the downward movement, the motor drives the reciprocating screw 52 to rotate. The reciprocating screw 52 drives the piston block 51 to move upward inside the oil production cylinder 1 and, in conjunction with the oil suction port, extracts the impure oil in the oil well.

[0025] A spline shaft 53 is rotatably installed at the bottom of the oil production cylinder 1, and sprockets 54 are installed on the spline shaft 53 and the reciprocating screw 52. The sprocket 54 is connected by a chain 55. A protective shell is installed at the bottom of the oil production cylinder 1 on the outside of the sprocket 54. The end of the spline shaft 53 penetrates to the outside of the filter cover 13 and is installed with a stirring rod 56. During the rotation of the reciprocating screw 52, ​​the spline shaft 53 is driven to rotate by the sprocket 54 and the chain 55. The spline shaft 53 drives the stirring rod 56 to rotate on the outside of the filter cover 13, so as to perform preliminary crushing treatment on the viscous oil or oil sludge in the oil well, so as to prevent a large volume of sludge from accumulating in the oil production cylinder 1 and affecting the oil production efficiency.

[0026] The breaking-up type plugging and sealing assembly 3 includes a plugging and sealing block 31 arranged in the oil suction port, and a vertical rod 32 is fixedly connected to the bottom of the plugging and sealing block 31, a U-shaped plate 33 sliding with the vertical rod 32 is welded to the bottom of the oil production cylinder 1, a mounting frame 34 slides on the spline shaft 53, and bristles are fixedly provided on the bottom of the mounting frame 34, and the spline shaft 53 drives the mounting plate 22 to rotate with the bristles, and the viscous oil or oil sludge in the oil well is stirred and crushed in a multi-stage manner through the rotation of the bristles combined with the rotating stirring rod 56, so as to further refine and crush the sludge, and the top of the mounting frame 34 is rotatably connected to a mounting ring fixed to the vertical rod 32, and a reset spring 2 35 is connected between the mounting ring and the U-shaped plate 33.

[0027] Example 2: Please refer to Figure 2 , Figure 5 , Fig.11 and Fig.12 As shown, the following solutions can be used to solve the problem that the filter cover is prone to clogging, and the sludge impurities in the oil in the oil production cylinder are prone to precipitation, making it difficult to isolate and collect them, and it is impossible to further ensure high-efficiency extraction efficiency; In this embodiment, the guided plugging assembly 2 includes a convex plugging block 21 located at the top of the conveying pipe 12, and a mounting plate 22 is fixedly connected to the top of the convex plugging block 21. An arc-shaped drainage groove 23 is provided at the bottom of the mounting plate 22. When the impure oil liquid enters the oil production cylinder 1 above the partition 11, the impure oil liquid is impacted to the top of the partition 11 through the arc-shaped drainage groove 23 at the bottom of the mounting plate 22, thereby performing a disturbed mixing treatment on the impure oil liquid to avoid the problem of sludge settling into the oil production cylinder 1 and being difficult to discharge, which affects the oil production efficiency. A guide rod 24 is fixedly connected to the top of the mounting plate 22 and is sealed and slidable with the mud collecting cylinder 41.

[0028] The scattered sealing assembly 3 includes a sealing block 31 arranged in the oil suction port, and a vertical rod 32 is fixedly connected to the bottom of the sealing block 31, a U-shaped plate 33 sliding with the vertical rod 32 is welded to the bottom of the oil production cylinder 1, a mounting frame 34 slides on the spline shaft 53, and bristles are fixedly provided on the bottom of the mounting frame 34, and a mounting ring fixedly connected to the vertical rod 32 is rotatably connected to the top of the mounting frame 34, and a return spring 2 35 is connected between the mounting ring and the U-shaped plate 33. When the piston block 51 is about to descend, the compression force of the return spring 1 25 prompts the sealing block 31 to quickly reset the sealing oil suction port, and drives the mounting frame 34 to carry the bristles to move downward, so as to clear the impurities blocked in the filter holes of the filter cover 13 from the inside to the outside, thereby further ensuring the efficient extraction and treatment of the oil by the device.

[0029] Example 3: Please refer to Figure 1-Figure 12 As shown, the present invention also proposes a method for using a device for continuous on-site treatment of underground sludge in oil production, comprising the following steps: Step 1: Place the oil production cylinder 1 in the oil well, and during the downward movement, the motor drives the reciprocating screw 52 to rotate, and the reciprocating screw 52 drives the piston block 51 to reciprocate and lift inside the oil production cylinder 1 to extract the impure oil, and the sprocket 54 and the chain 55 drive the spline shaft 53 to rotate, and the spline shaft 53 drives the stirring rod 56 and the mounting plate 22 to carry the brush to rotate, so as to perform multi-stage stirring and crushing treatment on the viscous oil or oil sludge in the oil well, prevent a large volume of sludge from accumulating in the oil production cylinder 1 and affecting the oil production efficiency, and filter and intercept the sand and gravel that are difficult to crush through the filter cover 13; Step 2: During the rising process of the piston block 51, the compression force of the return spring 25 causes the convex block 21 to seal the top of the delivery pipe 12, so that the pressure in the oil production cylinder 1 below the partition 11 is reduced, and the miscellaneous oil in the oil well is pushed up by the external atmospheric pressure to compress the return spring 25, so that the block 31 is separated from the oil suction port, and the miscellaneous oil in the oil well is sucked into the oil production cylinder 1. When the piston block 51 is about to descend, the compression force of the return spring 25 causes the block 31 to quickly return to the original position to seal the oil suction port, and drives the mounting frame 34 to carry the brush to move downward, so as to clean the impurities blocked in the filter holes of the filter cover 13. Step 3: During the descent of the piston block 51, the impure oil liquid in the oil production cylinder 1 below the partition 11 is pushed into the delivery pipe 12 through the oil inlet, and the impure oil liquid entering the delivery pipe 12 pushes the convex block 21 to rise and compress the return spring 2 35, so that the convex block 21 separates from the delivery pipe 12, and the impure oil liquid enters the oil production cylinder 1 above the partition 11, and during the entry process, the impure oil liquid impacts the top of the partition 11 through the arc-shaped drainage groove 23 at the bottom of the mounting plate 22, thereby mixing the impure oil liquid above the partition 11 to prevent the sludge from settling inside the oil production cylinder 1 and being difficult to discharge; Step 4: the impure oil liquid in the oil production cylinder 1 above the partition 11 enters the corresponding connecting port 2 47 through the middle cavity of the mud collecting cylinder 41 and the connecting port 1 46 on the middle cavity, and pushes the ends of the two groups of elastic plates 48 distributed in an eight shape to separate, and then enters the corresponding oil delivery cavity 43, and the sludge in the impure oil liquid is intercepted and filtered by the wave filter 44 in the oil delivery cavity 43, and the filtered oil liquid is discharged through the oil delivery pipe 16; In addition, as the piston block 51 rises, part of the impurity oil in the delivery pipe 12 is extracted synchronously, and the convex block 21 is assisted to reset and block the delivery pipe 12. When the impurity oil in the delivery pipe 12 decreases, the one-way valve in the oil delivery pipe 16 is combined to suck back the excess oil in the oil delivery cavity 43, and the resistance of the ends of the two sets of elastic plates 48 is used to limit the impurity back-absorption. Step 5: When the convex block 21 pushes the mounting plate 22 upward, the spring pin on the guide rod 24 slides in the oblique groove, and the spring pin is guided by the oblique groove to cause the rotating disk 42 to deflect until the spring pin enters the corresponding vertical groove, so that the oil delivery chamber 43 on the adjacent side is connected with the oil delivery pipe 16. When the mounting plate 22 is reset and lowered under the compression force of the reset spring 25, the spring pin slides in the vertical groove to limit the deflection of the rotating disk 42 and suck back the excess oil in the oil delivery chamber 43. With the reciprocating lifting and lowering motion of the convex block 21, the rotating disk 42 is caused to deflect intermittently, so that multiple oil delivery chambers 43 are used alternately to filter the impure oil; Step six: During the rotation of the rotating disk 42, when the trapezoidal groove 49 on its outer wall separates from the movable column 14, the corresponding auxiliary spring 15 is compressed. When the adjacent side trapezoidal groove 49 rotates to a certain position of the movable column 14, the movable column 14 is reset under the compression force of the auxiliary spring 15 and hits the side wall of the trapezoidal groove 49, forming a vibration effect on the rotating disk 42, thereby vibrating and separating the sludge filtered on the wave filter 44 during the rotation process, and then falling to the top of the mud collecting barrel 41, and pushing the separated sludge to move through the side wall of the oil delivery cavity 43 until it moves to the mud inlet 45 and enters the mud collecting barrel 41 for collection, thereby completing the continuous filtering and collection of the sludge inside the oil during the oil production process, and driving the rotating disk 42 to rotate by opening the plugging plate and extracting air or liquid through the piston block 51, prompting the scraper plate 411 to rotate in the mud collecting barrel 41, and assisting in the centralized discharge of the collected sludge.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for continuous on-site treatment of underground sludge in oil production, comprising an oil production cylinder (1), and a partition (11) fixedly connected to the inside of the oil production cylinder (1), wherein a delivery pipe (12) is fixedly connected between the partition (11) and the bottom of the oil production cylinder (1), characterized in that: A guide-type plugging assembly (2) is arranged at the top of the delivery pipe (12); an oil suction port is provided through the bottom of the oil production cylinder (1), and a filter cover (13) is fixedly installed; a scattered-type plugging assembly (3) is arranged inside the filter cover (13); and a collecting-type mud removal assembly (4) and an oil production assembly (5) are arranged inside the oil production cylinder (1) and on both sides of the top and bottom of the partition (11); The collecting type mud removal assembly (4) comprises a mud collecting barrel (41) fixedly mounted in an oil production barrel (1), a rotating disc (42) being rotatably mounted on the top of the mud collecting barrel (41), a plurality of oil delivery cavities (43) being penetrated through the top of the rotating disc (42), a wave filter (44) being mounted in the oil delivery cavity (43), and a mud inlet (45) being disposed on one side of the top of the mud collecting barrel (41).

2. The on-site continuous treatment device for underground sludge in oil production according to claim 1 is characterized in that: A first communication port (46) is provided on the annular side wall of the mud collecting barrel (41), a second communication port (47) matching with the first communication port (46) is provided through one side of the oil delivery chamber (43), and two groups of elastic plates (48) distributed in an octave are fixedly connected inside the second communication port (47).

3. The on-site continuous treatment device for underground sludge in oil production according to claim 1 is characterized in that: A plurality of trapezoidal grooves (49) are equidistantly formed on the annular outer wall of the rotating disk (42), a plurality of movable columns (14) are slidably mounted on the annular inner wall of the oil production cylinder (1), and an auxiliary spring (15) is fixedly connected between the movable columns (14) and the oil production cylinder (1).

4. The on-site continuous treatment device for underground sludge in oil production according to claim 1 is characterized in that: A rotating sleeve (410) rotatably connected to the mud collecting barrel (41) is fixedly connected to the bottom of the rotating disk (42), and a plurality of oblique grooves are equidistantly formed on the annular outer wall of the rotating sleeve (410), a vertical groove is formed between two adjacent groups of the oblique grooves, a guide block is fixedly connected inside the vertical groove, and a mud scraper (411) is fixedly connected to the rotating sleeve (410).

5. The on-site continuous treatment device for underground sludge in oil production according to claim 1 is characterized in that: The guide-type plugging assembly (2) comprises a convex plugging block (21) located at the top of the conveying pipe (12), and a mounting plate (22) is fixedly connected to the top of the convex plugging block (21), an arc-shaped drainage groove (23) is formed at the bottom of the mounting plate (22), and a guide rod (24) is fixedly connected to the top of the mounting plate (22) and is sealed and slidable with the mud collecting barrel (41).

6. The on-site continuous treatment device for underground sludge in oil production according to claim 5 is characterized in that: A return spring (25) is fixedly connected between the mounting plate (22) and the mud collecting barrel (41), a spring pin is fixedly mounted on the guide rod (24), an oil delivery pipe (16) having a one-way valve disposed therein is fixedly connected to one side of the top of the oil production barrel (1), and a mud discharge port (412) penetrating the oil production barrel (1) is provided at the bottom of one side of the mud collecting barrel (41).

7. The on-site continuous treatment device for underground sludge in oil production according to claim 1 is characterized in that: The oil production assembly (5) comprises a piston block (51) slidably connected between a delivery pipe (12) and an oil production cylinder (1); a reciprocating screw rod (52) threadedly connected to the piston block (51) is rotatably connected inside the oil production cylinder (1); and oil inlets are provided at the bottom of both sides of the delivery pipe (12).

8. The on-site continuous treatment device for underground sludge in oil production according to claim 7 is characterized in that: A spline shaft (53) is rotatably mounted on the bottom of the oil extraction cylinder (1), and a sprocket (54) is mounted on the spline shaft (53) and the reciprocating screw rod (52). The sprocket (54) is connected to the spline shaft by a chain (55). The end of the spline shaft (53) passes through the outside of the filter cover (13) and is mounted with a stirring rod (56).

9. The on-site continuous treatment device for underground sludge in oil production according to claim 8 is characterized in that: The scattered plugging and sealing assembly (3) comprises a plugging and sealing block (31) arranged in the oil suction port, and the bottom of the plugging and sealing block (31) is fixedly connected to a vertical rod (32), the bottom of the oil production cylinder (1) is welded with a U-shaped plate (33) that slides with the vertical rod (32), a mounting frame (34) slides on the spline shaft (53), and bristles are fixedly provided at the bottom of the mounting frame (34), the top of the mounting frame (34) is rotatably connected to a mounting ring that is fixedly connected to the vertical rod (32), and a second return spring (35) is connected between the mounting ring and the U-shaped plate (33).

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