A treatment device for sediments in oilfield produced fluids

Abstract

The present invention relates to the technical field of oilfield exploitation, and particularly relates to a processing device for sediments in oilfield produced fluids. It includes: a frame; a controller, installed on the frame; a connecting cylinder, connected to the frame; a baffle, connected to the inner wall of the connecting cylinder; a first check valve, installed on the baffle; a water suction pipe, connected to the side of the baffle, and the end of the water suction pipe is aligned with the first check valve; a sliding pipe, slidably connected to the baffle; a hose, connected to one end of the sliding pipe and kept in communication. Through the cooperation of the sliding pipe, the first piston and the driving assembly, the present invention can realize the continuous extraction and solid-liquid separation process of oilfield produced fluids. When the first piston moves left and right, the liquid can be effectively discharged through the filter cloth, and at the same time, the solid particles are compressed into filter cakes, thus avoiding the problem that the traditional filter press must wait for completion before receiving new materials during the batch processing process, and greatly improving the continuity and working efficiency of the system.

Description

Technical Field

[0001] The present invention relates to the technical field of oilfield exploitation, and particularly to a treatment device for sediments in oilfield produced fluids. Background Art

[0002] With the progress of oilfield development, especially in the middle and late stages, a significant challenge encountered in the oil production process is that the composition of the produced fluids becomes extremely complex. In addition to the traditional three-phase media of crude oil, water, and gas, it also contains sediments such as wax, asphaltene, sand grains, scale layers (such as carbonates and sulfates), and microbial metabolites. These complex components not only affect the quality of petroleum but also pose higher requirements for subsequent treatment processes.

[0003] Currently, one of the main methods for treating these oilfield produced fluids is to use a slurry pump to pump out the produced fluids containing various impurities and transport them through pipelines to a filter press for solid-liquid separation. Specifically, plate and frame filter presses and diaphragm filter presses are widely used in such situations to press solid particles into filter cakes. However, these devices have an obvious defect in the actual operation process: when a batch of produced fluids is being processed in the filter press, since it is necessary to wait for the completion of the processing of this batch before receiving the next batch of materials, the slurry pump must be suspended during this period. Due to this intermittent working mode, the continuous operation ability and efficiency of the entire system will be severely affected. Although belt filter presses and slurry vibrating screens can solve the problem of continuous operation to a certain extent, they perform poorly in terms of solid-liquid separation effect. In particular, the water content of the filtered solid particles is relatively high, which not only increases the subsequent treatment cost but may also have an adverse impact on the environment. In addition, like the slurry pump, all types of filter presses are usually bulky, which not only increases the transportation difficulty of the equipment but also means that more preparatory work is required during on-site installation and commissioning, including complex pipeline connections, etc. Summary of the Invention

[0004] In view of this, the present invention provides a treatment device for sediments in oilfield produced fluids, which can overcome the disadvantages that the existing slurry pump cannot continuously treat the oilfield produced fluids when cooperating with a filter press, has low working efficiency, is not convenient for transportation, and the on-site installation and commissioning process is relatively troublesome.

[0005] The technical implementation solution of the present invention is as follows: A processing device for sediments in oilfield produced fluids, comprising: a frame; a controller installed on the frame; a connecting cylinder connected to the frame; a baffle connected to the inner wall of the connecting cylinder; a first one-way valve installed on the baffle; a water suction pipe connected to the side of the baffle, and the end of the water suction pipe is aligned with the first one-way valve; a sliding pipe slidably connected to the baffle; a hose connected to one end of the sliding pipe and kept communicating; a first piston connected to the other end of the sliding pipe, and the first piston is in close contact with the inner wall of the connecting cylinder. A through hole communicating with the end of the sliding pipe is opened in the middle of the first piston; a second one-way valve symmetrically installed on the first piston; a filter cloth connected to the inner wall of the through hole; a driving assembly arranged on the frame for driving the sliding pipe to move left and right; a blocking assembly arranged on the connecting cylinder for blocking solid particles in the connecting cylinder.

[0006] More preferably, the driving assembly includes: driving motors symmetrically installed on the frame; rotating plates symmetrically rotatably connected to the frame; connecting plates connected to the sliding pipe, and vertical grooves are opened on both sides of the connecting plates; a worm connected to the output shaft of the driving motor; a worm gear connected to the rotating plate, and the worm gear meshes with the worm; a short rod connected to the side of the rotating plate, and the short rod is located in the vertical groove.

[0007] More preferably, the blocking assembly includes: cylinders symmetrically installed on the connecting cylinder; mounting cylinders connected to the telescopic rods of the cylinders, and the side of the mounting cylinder is in contact with the side of the connecting cylinder; fixing plates connected to the inner wall of the mounting cylinder; sliding rods slidably connected to the fixing plates; pressing plates connected to the ends of the sliding rods, and the pressing plates are in close contact with the inner wall of the mounting cylinder; connecting springs wound around the sliding rods, and both ends of the connecting springs are respectively connected to the fixing plate and the pressing plate; control switches installed on the side of the connecting cylinder; a limiting mechanism arranged in the fixing plate for limiting the sliding rods.

[0008] More preferably, the limiting mechanism includes: circular plates symmetrically connected to the inside of the fixing plate; return springs connected to the sides of the circular plates; limiting rods symmetrically slidably connected to the inside of the fixing plate, the ends of the return springs away from the circular plates are connected to the limiting rods, and limiting grooves cooperating with the limiting rods are symmetrically opened on the sliding rods.

[0009] More preferably, it further includes: a filter block connected to the inner wall of the through hole, and the side of the filter block is in contact with the filter cloth.

[0010] More preferably, it further includes: magnets symmetrically connected to the side of the baffle; a second piston slidably connected to the inner wall of the connecting cylinder; a telescopic pipe with both ends respectively connected to the first piston and the second piston, and one end of the telescopic pipe is aligned with the second one-way valve. Circular holes aligned with the other end of the telescopic pipe are symmetrically opened on the second piston and kept communicating, an air flow channel is opened inside the sliding pipe, a notch is opened on the side of the first piston, and the notch communicates with the air flow channel.

[0011] More preferably, it further includes: an air pump installed on the frame; a connecting pipe connected to the air outlet of the air pump; an arc plate connected to the top of the installation cylinder; an arc pipe connected to the side of the arc plate, and the end of the connecting pipe away from the air pump is connected to and in communication with the arc pipe; nozzles evenly spaced and installed on the arc pipe.

[0012] More preferably, it further includes: a sleeve connected to the end of the water extraction pipe away from the baffle, and water inlet holes are circumferentially spaced on the sleeve; a brushless motor installed inside the sleeve; a stirring frame installed on the brushless motor.

[0013] Compared with the prior art, the present invention has the following advantages: 1. Through the cooperation of the sliding pipe, the first piston and the driving assembly, the present invention can realize the continuous extraction and solid-liquid separation process of the oilfield produced fluid. When the first piston moves left and right, the liquid can be effectively discharged through the filter cloth, and at the same time, the solid particles are compressed into filter cakes, thus avoiding the problem that the traditional filter press must wait for completion to receive new materials during the batch processing process, and greatly improving the continuity and working efficiency of the system.

[0014] 2. Through the collaborative work of the first piston, the second piston and the blocking assembly, the present invention can ensure that the solid particles are effectively compressed under high pressure, reducing the water content in the filter cake. In addition, when the predetermined pressure is reached, the control system will trigger the cylinder to separate the installation cylinder from the connection cylinder, and at this time, the connecting spring will push the pressing plate to push out the filter cake, which is convenient for quickly and cleanly discharging the filter cake, reducing the subsequent processing cost and reducing the impact on the environment.

[0015] 3. Through the design of the sleeve, the brushless motor and the stirring frame, when the water extraction pipe extracts the oilfield produced fluid, it can enter through the water inlet holes, and at the same time, the brushless motor drives the stirring frame to rotate, which can prevent the produced fluid from depositing and blocking the pipeline, ensuring the smooth flow of the fluid. In addition, through the cooperation of the air pump, the connecting pipe, the arc plate, the arc pipe and the nozzles, when the pressing plate pushes out the filter cake each time, compressed air can be used to clean the surface of the pressing plate, ensuring the smooth dropping of the filter cake, and improving the operation flexibility and maintenance convenience of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 It is an installation schematic diagram of the baffle, the first one-way valve, the first piston and the second one-way valve of the present invention.

[0018] Figure 3 It is a cross-sectional view of the sliding pipe and the first piston of the present invention.

[0019] Figure 4 It is an installation schematic diagram of the driving assembly of the present invention.

[0020] Figure 5 This is a schematic diagram of the specific structure of the driving component of the present invention.

[0021] Figure 6 This is a schematic diagram of the separation structure of the rotating plate and the connecting plate of the present invention.

[0022] Figure 7 This is an installation schematic diagram of the blocking component of the present invention.

[0023] Figure 8 This is a schematic diagram of the specific structure of the sliding rod, the pressing plate, the connecting spring and the control switch of the present invention.

[0024] Figure 9 This is an installation schematic diagram of the limiting mechanism of the present invention.

[0025] Figure 10 This is a schematic diagram of the specific structure of the filter block of the present invention.

[0026] Figure 11 This is an installation schematic diagram of the magnet, the second piston and the telescopic tube of the present invention.

[0027] Figure 12 This is a matching schematic diagram of the sliding tube and the second piston of the present invention.

[0028] Figure 13 This is an installation schematic diagram of the air pump, the connecting pipe and the arc-shaped plate of the present invention.

[0029] Figure 14 This is a schematic diagram of the specific structure of the arc-shaped plate, the arc-shaped tube and the nozzle of the present invention.

[0030] Figure 15 This is an installation schematic diagram of the sleeve of the present invention.

[0031] Figure 16 This is an installation schematic diagram of the brushless motor and the stirring frame of the present invention.

[0032] The markings of each component in the attached drawings are as follows: 1 - frame, 2 - controller, 3 - connecting cylinder, 4 - baffle, 5 - first check valve, 6 - water suction pipe, 7 - sliding pipe, 8 - hose, 9 - first piston, 10 - through hole, 11 - second check valve, 12 - filter cloth, 13 - drive motor, 14 - rotating plate, 15 - connecting plate, 1501 - vertical groove, 16 - worm, 17 - worm gear, 18 - short rod, 19 - cylinder, 20 - mounting cylinder, 21 - fixing plate, 22 - sliding rod, 23 - pressing plate, 24 - connecting spring, 25 - control switch, 26 - limiting groove, 27 - circular plate, 28 - reset spring, 29 - limiting rod, 30 - filter block, 31 - magnet, 32 - second piston, 33 - telescopic pipe, 34 - circular hole, 35 - air flow channel, 36 - notch, 37 - air pump, 3701 - connecting pipe, 38 - arc plate, 39 - arc pipe, 40 - nozzle, 41 - sleeve, 4101 - water inlet hole, 42 - brushless motor, 43 - stirring frame. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] Embodiment: A device for treating sediments in oilfield produced fluids, as Figures 1 - 9 shown, comprising a frame 1, a controller 2, a connecting cylinder 3, a baffle 4, a first check valve 5, a water suction pipe 6, a sliding pipe 7, a hose 8, a first piston 9, a second check valve 11, a filter cloth 12, a driving assembly and a blocking assembly. Handles are connected to both the left and right sides of the upper part of the frame 1 for facilitating the handling and movement of the device. An inclined surface is provided at the lower left side of the frame 1. A controller 2 is installed on the front side of the frame 1. A connecting cylinder 3 is connected to the left side of the upper part of the frame 1. A baffle 4 is connected to the right side inner wall of the connecting cylinder 3. A first check valve 5 is installed at the lower part of the baffle 4. A water suction pipe 6 is connected to the lower right side of the baffle 4. The left end of the water suction pipe 6 is located directly to the right of the first check valve 5. A sliding pipe 7 is slidably connected to the middle part of the baffle 4. The right end of the sliding pipe 7 is connected to a hose 8 and kept in communication. The left end of the sliding pipe 7 is connected to a first piston 9, and the first piston 9 is closely attached to the inner wall of the connecting cylinder 3. A through hole 10 communicating with the left end of the sliding pipe 7 is opened in the middle of the first piston 9. Two second check valves 11 are symmetrically installed on the first piston 9. A filter cloth 12 is connected to the left side inner wall of the through hole 10. The driving assembly is used to drive the sliding pipe 7 to move left and right. The blocking assembly is used to block solid particles in the connecting cylinder 3.

[0035] As Figures 4 - 6As shown in the figure, the driving assembly includes a driving motor 13, a rotating plate 14, a connecting plate 15, a worm 16, a worm gear 17 and a short rod 18. The driving motors 13 are symmetrically installed at the front and rear of the middle part of the upper part of the frame 1. The rotating plates 14 are symmetrically rotatably connected at the front and rear of the right side of the upper part of the frame 1. The right part of the sliding tube 7 is connected with the connecting plate 15. Vertical grooves 1501 are opened on both the front and rear sides of the connecting plate 15. The output shafts of the two driving motors 13 are both connected with the worm 16. The rotating shafts of the two rotating plates 14 are both connected with the worm gear 17. The worm gears 17 correspond to the worms 16 one by one, and the worm gear 17 meshes with its corresponding worm 16. The two rotating plates 14 are both connected with a short rod 18 on the side close to the connecting plate 15. The two short rods 18 are respectively inserted into and slide along the vertical grooves 1501 on both sides of the connecting plate 15.

[0036] As Figures 7 - 9 As shown in the figure, the blocking assembly includes a cylinder 19, a mounting cylinder 20, a fixing plate 21, a sliding rod 22, a pressing plate 23, a connecting spring 24, a control switch 25 and a limiting mechanism. Cylinders 19 are connected to both the front and rear sides of the connecting cylinder 3. An installation cylinder 20 is connected between the telescopic rods of the two cylinders 19. The installation cylinder 20 is located on the left side of the connecting cylinder 3, and the inner and outer diameters of the installation cylinder 20 are the same as those of the connecting cylinder 3. The right side of the installation cylinder 20 is in close contact with the left side of the connecting cylinder 3 to ensure sealing. The left side of the inner wall of the installation cylinder 20 is connected with a fixing plate 21. The middle part of the fixing plate 21 is slidably connected with a sliding rod 22. The right end of the sliding rod 22 is connected with a pressing plate 23, and the pressing plate 23 is closely attached to the inner wall of the installation cylinder 20. A connecting spring 24 is wound around the outer side of the sliding rod 22, and the two ends of the connecting spring 24 are respectively connected to the right side of the fixing plate 21 and the left side of the pressing plate 23. A control switch 25 is installed on the upper part of the right side of the connecting cylinder 3. The limiting mechanism is used to limit the sliding rod 22; the limiting mechanism includes a circular plate 27, a return spring 28 and a limiting rod 29. Four limiting grooves 26 are symmetrically opened on the sliding rod 22. Circular plates 27 are connected to the front, rear, upper and lower four sides inside the fixing plate 21. A return spring 28 is connected to the side of each of the four circular plates 27 close to the sliding rod 22. Limiting rods 29 are slidably connected to the front, rear, upper and lower four sides inside the fixing plate 21. The limiting rods 29 correspond to the return springs 28 one by one. The end of the limiting rod 29 away from the sliding rod 22 is connected to the end of its corresponding return spring 28. The end of the limiting rod 29 close to the sliding rod 22 is an arc surface and can be stuck in the corresponding limiting groove 26.

[0037] Initially, both the first check valve 5 and the second check valve 11 are in the closed state, and the first piston 9 is in contact with the pressing plate 23. First, transport the device to the designated position, then place the right ends of the water suction pipe 6 and the hose 8 at the designated positions respectively, and then start the driving motor 13 through the controller 2. The driving motor 13 can drive the worm 16 to rotate, the worm 16 can drive the worm wheel 17 to rotate, the worm wheel 17 can drive the rotating plate 14 to rotate, and the rotating plate 14 can drive the connecting plate 15 to move left and right reciprocally through the cooperation of the short rod 18 and the vertical groove 1501. The connecting plate 15 can drive the sliding pipe 7 and the first piston 9 to move left and right reciprocally. When the first piston 9 moves to the right, the first piston 9 will separate from the pressing plate 23, and the first piston 9 will squeeze the air between the first piston 9 and the baffle 4. At this time, the air between the first piston 9 and the baffle 4 will push the valve flap of the second check valve 11 to open, so that the air between the first piston 9 and the baffle 4 can flow through the second check valve 11 to the space between the first piston 9 and the pressing plate 23, while the first check valve 5 remains in the closed state until the right side of the first piston 9 contacts the left side of the baffle 4. At this time, all the air between the first piston 9 and the baffle 4 is discharged, and the second check valve 11 will return to the closed state. Subsequently, the first piston 9 will move to the left, and the first piston 9 will squeeze the air between the first piston 9 and the pressing plate 23, so that the air is discharged through the filter cloth 12, the sliding pipe 7 and the hose 8. At the same time, a negative pressure will be formed between the first piston 9 and the baffle 4, and the valve flap of the first check valve 5 will open due to the pressure effect, while the second check valve 11 remains in the closed state, so that the oilfield produced fluid can be extracted through the water suction pipe 6. The oilfield produced fluid will enter the space between the first piston 9 and the baffle 4 through the first check valve 5. When the first piston 9 contacts the pressing plate 23 again, the oilfield produced fluid will no longer enter the space between the first piston 9 and the baffle 4, and the first check valve 5 will return to the closed state;Similarly, when the first piston 9 moves to the right again, the oilfield produced fluid located between the first piston 9 and the baffle 4 will enter the space between the first piston 9 and the pressing plate 23 through the second one-way valve 11. When the first piston 9 moves to the left again, a new batch of oilfield produced fluid will enter the space between the first piston 9 and the baffle 4. At the same time, the first piston 9 and the pressing plate 23 cooperate to squeeze the oilfield produced fluid between the first piston 9 and the pressing plate 23. The filter cloth 12 plays a filtering role, enabling the liquid in the oilfield produced fluid to be discharged through the filter cloth 12, the sliding tube 7, and the hose 8, while the solid particles in the oilfield produced fluid are pressed into filter cakes by the first piston 9 and the pressing plate 23. When the solid particles in the oilfield produced fluid can no longer be compressed, the first piston 9 can push the pressing plate 23 to move leftward and retract into the installation cylinder 20 through the filter cake. The pressing plate 23 can drive the sliding rod 22 to move leftward, the connecting spring 24 is compressed, and the sliding rod 22 can squeeze the limiting rod 29 to move away from the sliding rod 22 through the limiting groove 26, and the reset spring 28 is compressed, causing the limiting rod 29 to disengage from the limiting groove 26. Subsequently, the connecting plate 15 will contact the control switch 25, and the control switch 25 will send a signal. When the controller 2 receives the signal, it will control the cylinder 19 to drive the installation cylinder 20 to move leftward and disengage from the connecting cylinder 3. At this time, the connecting spring 24 will return to its original state, driving the pressing plate 23 and the sliding rod 22 to move rightward and reset. The pressing plate 23 can push the filter cake to the right, causing the filter cake to fall downward onto the inclined plane on the left side of the frame 1 for discharging. Moreover, the reset spring 28 will return to its original state, driving the limiting rod 29 to move toward the sliding rod 22 to reset and re-lock in the limiting groove 26 to limit the sliding rod 22. Subsequently, the connecting plate 15 will move rightward to separate from the control switch 25, and the control switch 25 will send a signal. When the controller 2 receives the signal, it will control the cylinder 19 to drive the installation cylinder 20 to move rightward to reset, causing the installation cylinder 20 to contact the connecting cylinder 3 again. In this way, the oilfield produced fluid can be extracted and solid-liquid separated simultaneously, with high continuity and working efficiency.

[0038] As Figure 3 and Figure 10 shown, it further includes a filter block 30. The inner wall of the through hole 10 is connected with the filter block 30. The left side of the filter block 30 contacts the right side of the filter cloth 12, and the pore diameter of the filter block 30 is larger than that of the filter cloth 12. The filter block 30 is used to support the filter cloth 12 and can prevent the filter cloth 12 from being damaged due to excessive pressure.

[0039] When the connecting plate 15 moves rightward to separate from the control switch 25, the oilfield produced fluid in the connecting cylinder 3 will immediately squeeze and open the valve flap of the second one-way valve 11. Since it takes a certain amount of time for the cylinder 19 to control the movement and closing of the installation cylinder 20, the oilfield produced fluid may directly fall downward through the gap between the first piston 9 and the pressing plate 23. Therefore, a buffer component is designed; As Figure 3 、 Figure 11 andFigure 12 As shown, it further includes a magnet 31, a second piston 32 and a telescopic tube 33. Four magnets 31 are circumferentially and spacedly connected to the left side of the baffle 4. The second piston 32 is slidably connected to the inner wall of the connecting cylinder 3. The second piston 32 is located between the baffle 4 and the first piston 9, and the sliding tube 7 slidably penetrates through the middle of the second piston 32. Telescopic tubes 33 are symmetrically connected up and down between the second piston 32 and the first piston 9. The left ends of the two telescopic tubes 33 are respectively aligned with the two second check valves 11. Circular holes 34 are opened on both the upper and lower sides of the second piston 32. The right ends of the two telescopic tubes 33 are respectively aligned with the two circular holes 34. An air flow passage 35 is opened on the upper side inside the sliding tube 7. A notch 36 is opened on the upper right side of the first piston 9, and the notch 36 communicates with the air flow passage 35, so that the space between the second piston 32 and the first piston 9 can communicate with the outside through the notch 36 and the air flow passage 35.

[0040] When the connecting plate 15 moves to the right and separates from the control switch 25, the first piston 9 will move to the right synchronously with the connecting plate 15. At this time, the second piston 32 remains stationary, the telescopic tube 33 will shorten, and the air between the first piston 9 and the second piston 32 will be squeezed and discharged outward through the notch 36 and the air flow passage 35. Since the second piston 32 remains stationary, the oilfield produced fluid in the connecting cylinder 3 is not under pressure, and the oilfield produced fluid will not squeeze open the valve flap of the second check valve 11 for the time being, so as to ensure that the installation cylinder 20 has enough time to close. When the first piston 9 contacts the second piston 32, the first piston 9 will push the second piston 32 to move to the right synchronously, so that the oilfield produced fluid in the connecting cylinder 3 is pressurized and can enter the circular hole 34 and the telescopic tube 33, and squeeze open the valve flap of the second check valve 11 to complete the transfer work of the oilfield produced fluid. When the second piston 32 contacts the magnet 31, the magnet 31 can attract the second piston 32 by magnetic force. When the first piston 9 moves to the left, the second piston 32 remains stationary, the telescopic tube 33 will elongate and recover, and the outside air can enter between the first piston 9 and the second piston 32 through the air flow passage 35 and the notch 36, providing time for the next closing of the installation cylinder 20. When the telescopic tube 33 can no longer elongate, the first piston 9 will pull the second piston 32 to move to the left synchronously through the telescopic tube 33, so that the second piston 32 separates from the magnet 31.

[0041] As Figure 13 and Figure 14As shown in the figure, it further includes an air pump 37, a connecting pipe 3701, an arc-shaped plate 38, an arc-shaped pipe 39 and a spray head 40. The air pump 37 is installed at the right rear side of the top of the frame 1. The air outlet of the air pump 37 is connected with the connecting pipe 3701 and kept in communication. The right side of the top of the installation cylinder 20 is connected with the arc-shaped plate 38. The right side of the arc-shaped plate 38 is connected with the arc-shaped pipe 39. The left end of the connecting pipe 3701 is connected with the arc-shaped pipe 39 and kept in communication. A plurality of spray heads 40 are evenly spaced and installed at the bottom of the arc-shaped pipe 39. By controlling the air pump 37 to start working through the controller 2, the air pump 37 can transport compressed air to the spray head 40 through the connecting pipe 3701 and the arc-shaped pipe 39. Whenever the pressing plate 23 pushes the filter cake to the right, the spray head 40 can spray the compressed air downward to ensure that the filter cake can quickly fall downward for discharging and prevent the filter cake from sticking to the side of the pressing plate 23.

[0042] As Figure 15 and Figure 16 shown in the figure, it further includes a sleeve 41, a brushless motor 42 and a stirring frame 43. The right end of the water suction pipe 6 is connected with the sleeve 41, and water inlet holes 4101 are circumferentially spaced on the sleeve 41. The brushless motor 42 is installed inside the sleeve 41, and the stirring frame 43 is installed on the brushless motor 42. When the water suction pipe 6 is used to extract the oilfield produced fluid, the oilfield produced fluid can enter the water suction pipe 6 through the water inlet holes 4101 and the sleeve 41. At the same time, the controller 2 can be used to control the brushless motor 42 to drive the stirring frame 43 to rotate, and the stirring frame 43 can stir the oilfield produced fluid to make the oilfield produced fluid flow and prevent the oilfield produced fluid from depositing.

[0043] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A sediment treatment device for oilfield produced fluids, comprising: a frame (1); characterized in that, It also includes: a controller (2), installed on the frame (1); a connecting cylinder (3), connected to the frame (1); a baffle (4), connected to the inner wall of the connecting cylinder (3); a first check valve (5), installed on the baffle (4); a water suction pipe (6), connected to the side of the baffle (4), and the end of the water suction pipe (6) is aligned with the first check valve (5); a sliding pipe (7), slidably connected to the baffle (4); a hose (8), connected to one end of the sliding pipe (7) and kept in communication; a first piston (9), connected to the other end of the sliding pipe (7), and the first piston (9) is in close contact with the inner wall of the connecting cylinder (3), and a through hole (10) communicating with the end of the sliding pipe (7) is opened in the middle of the first piston (9); a second check valve (11), symmetrically installed on the first piston (9); a filter cloth (12), connected to the inner wall of the through hole (10); a driving component, arranged on the frame (1) and used to drive the sliding pipe (7) to move left and right; a blocking component, arranged on the connecting cylinder (3) and used to block solid particles in the connecting cylinder (3); the blocking component includes: a cylinder (19), symmetrically installed on the connecting cylinder (3); an installation cylinder (20), connected to the telescopic rod of the cylinder (19), and the side of the installation cylinder (20) is in contact with the side of the connecting cylinder (3); a fixing plate (21), connected to the inner wall of the installation cylinder (20); a sliding rod (22), slidably connected to the fixing plate (21); a pressing plate (23), connected to the end of the sliding rod (22), and the pressing plate (23) is in close contact with the inner wall of the installation cylinder (20); a connecting spring (24), wound around the outside of the sliding rod (22), and both ends of the connecting spring (24) are respectively connected to the fixing plate (21) and the pressing plate (23); a control switch (25), installed on the side of the connecting cylinder (3); a limiting mechanism, arranged in the fixing plate (21) and used to limit the sliding rod (22); by the left and right movement of the sliding pipe (7), the first piston (9) is driven to move left and right, so that the oilfield produced fluid will enter between the first piston (9) and the baffle (4) through the first check valve (5). The oilfield produced fluid located between the first piston (9) and the baffle (4) will enter between the first piston (9) and the pressing plate (23) through the second check valve (11). The cooperation of the first piston (9) and the pressing plate (23) will squeeze the oilfield produced fluid between the first piston (9) and the pressing plate (23), so that the liquid in the oilfield produced fluid can be discharged through the filter cloth (12), the sliding pipe (7) and the hose (8).

2. The treatment equipment for sediments in oilfield produced fluids according to claim 1, characterized in that, The driving component includes: a driving motor (13), symmetrically installed on the frame (1); a rotating plate (14), symmetrically rotatably connected to the frame (1); a connecting plate (15), connected to the sliding pipe (7), and vertical grooves (1501) are opened on both sides of the connecting plate (15); a worm (16), connected to the output shaft of the driving motor (13); a worm gear (17), connected to the rotating plate (14), and the worm gear (17) meshes with the worm (16); a short rod (18), connected to the side of the rotating plate (14), and the short rod (18) is located in the vertical groove (1501).

3. The sediment treatment equipment for oilfield produced fluids according to claim 2, characterized in that, The limiting mechanism includes: a circular plate (27) symmetrically connected inside the fixing plate (21); a return spring (28) connected to the side of the circular plate (27); a limiting rod (29) symmetrically and slidably connected inside the fixing plate (21), one end of the return spring (28) away from the circular plate (27) is connected to the limiting rod (29), and limiting grooves (26) cooperating with the limiting rod (29) are symmetrically formed on the sliding rod (22).

4. The treatment equipment for sediments in oilfield produced fluids according to claim 3, characterized in that, It further includes: a filter block (30) connected to the inner wall of the through hole (10), and the side of the filter block (30) contacts the filter cloth (12).

5. The treatment device for sediments in oilfield produced fluids according to claim 4, characterized in that, It further includes: magnets (31) symmetrically connected to the side of the baffle (4); a second piston (32) slidably connected to the inner wall of the connecting cylinder (3); a telescopic tube (33) with two ends respectively connected to the first piston (9) and the second piston (32), and one end of the telescopic tube (33) is aligned with the second one-way valve (11), circular holes (34) aligned with the other end of the telescopic tube (33) are symmetrically formed on the second piston (32) and kept in communication, an air flow channel (35) is formed inside the sliding tube (7), a notch (36) is formed on the side of the first piston (9), and the notch (36) is in communication with the air flow channel (35).

6. The treatment equipment for sediments in oilfield produced substances according to claim 5, characterized in that, It further includes: an air pump (37) installed on the frame (1); a connecting pipe (3701) connected to the air outlet of the air pump (37); an arc-shaped plate (38) connected to the top of the mounting cylinder (20); an arc-shaped pipe (39) connected to the side of the arc-shaped plate (38), and the end of the connecting pipe (3701) away from the air pump (37) is connected to the arc-shaped pipe (39) and kept in communication; nozzles (40) are evenly spaced and installed on the arc-shaped pipe (39).

7. The treatment equipment for sediments in oilfield produced fluids according to claim 6, characterized in that, It further includes: a sleeve (41) connected to the end of the water suction pipe (6) away from the baffle (4), and water inlet holes (4101) are circumferentially spaced on the sleeve (41); a brushless motor (42) installed inside the sleeve (41); a stirring frame (43) installed on the brushless motor (42).

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