Crude oil water separating and mixing pressurizing and outputting integrated device

Abstract

The utility model discloses a crude oil water-separating and water-mixing pressurization and output integrated device, and relates to the technical field of oil-gas gathering and transportation of oil field surface engineering.A separation assembly is arranged in a filter pipe and comprises a spiral blade, the spiral blade is rotationally connected into the filter pipe, a plurality of through holes are formed in the surface of the spiral blade, and the through holes are communicated with the separation assembly. The apertures of the through holes are the same as those of the filtering holes, and the distances between the blades of the spiral blade are different, and are gradually reduced from one end close to the motor to one end far away from the motor. The separation assembly comprises rectangular holes, the hole diameters of the rectangular holes are sequentially decreased from the end close to the motor to the end away from the motor, and the distances between the holes are increasingly dense. The mixing effect between oil and water can be enhanced, the water distribution efficiency is improved, fluid can flow more uniformly and stably in a pipeline, fluctuation of flow resistance is reduced, and therefore the stability of the whole system is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of oil-gas gathering and transportation in oilfield surface engineering, and particularly relates to an integrated device for crude oil water separation, water blending, pressurization and external transportation. Background Art

[0002] A device for separating oil, gas and water phases in formation fluids on the ground and accurately measuring their production. It is divided into three forms: vertical, horizontal and spherical. For the convenience of handling, horizontal separators are usually used for production measurement. The internal structure of a typical horizontal three-phase separator mainly includes: an inlet diverter, a defoamer, coalescing plates, a vortex eliminator, a demister, etc. When formation fluids enter the three-phase separator, they first encounter the inlet diverter, which preliminarily separates the liquid and gas. The gas with a large number of entrained liquid droplets is further separated by the coalescing plates, and then passes through the defoamer and demister for further purification, so that it becomes dry gas and is discharged from the gas outlet. A pneumatic valve is provided on the exhaust pipeline to control the gas discharge volume to maintain the required pressure in the container. The separation technology adopted by the existing device is not advanced enough to effectively separate the water and impurities in the crude oil completely. The design and setting of the separation equipment are unreasonable, resulting in poor separation effect. The impurities accumulated during the separation process may be difficult to remove from the equipment, affecting the continuous operation of the equipment. The cleaning process is complex and time-consuming, increasing the maintenance cost. Summary of the Invention

[0003] In the embodiments of the present application, by providing an integrated device for crude oil water separation, water blending, pressurization and external transportation, when the filter component is blocked, it can be easily removed and cleaned or replaced to reduce the cleaning difficulty and time. A cleaning hole is provided at an appropriate position of the separation device to facilitate the cleaning work when needed. The problem of difficult crude oil separation in the prior art is solved, making it easier for the gas-liquid two-phase to separate during the flow process, and having better self-cleaning ability, reducing energy loss and improving the efficiency of fluid transportation.

[0004] The embodiments of the present application provide an integrated device for crude oil water separation, water blending, pressurization and external transportation, which is characterized by comprising a fixing component, a supporting component, a filtering component and a separating component;

[0005] The fixing component includes a separation tank, an outlet pipe, a demister installation cavity, a degassing area, and a sewage outlet;

[0006] The separation tank is an elliptical body, and one end of the separation tank is fixedly connected with an outlet pipe;

[0007] The outlet pipe is a cylindrical body, and there are two outlet pipes;

[0008] The sewage outlet is fixedly connected to the lower surface of the separation tank near one end of the outlet pipe;

[0009] On one side of the sewage outlet, away from the gas outlet pipe, there is a degassing area fixedly connected thereto;

[0010] On one side of the degassing area, away from the sewage outlet, there is a mist catcher installation cavity fixedly connected thereto. Inside the separation tank, on one side away from the gas outlet pipe, there is a filtering component;

[0011] The filtering component includes a filter plate, a filter pipe, filter holes, an oil-gas mixture inlet pipe, a motor, and a waste discharge port;

[0012] The filter plate is horizontally arranged on one side of the separation tank, away from the gas outlet pipe. The filter plate is a rectangular body, and above the filter plate, there is a filter pipe;

[0013] The filter pipe is fixedly connected inside the separation tank and extends out at both ends. The filter pipe is a cylindrical body, and on the upper surface of the filter pipe that cooperates with the inside of the separation tank, there are a number of filter holes;

[0014] One end of the filter pipe is provided with a waste discharge port;

[0015] Inside the filter pipe, there is a separation component;

[0016] The separation component includes spiral blades;

[0017] The spiral blades are rotatably connected inside the filter pipe;

[0018] On the surface of the spiral blades, there are a number of through holes;

[0019] The through holes have the same aperture as the filter holes. One end of the spiral blade, away from the waste discharge port, is fixedly connected with a motor, and the motor is fixedly connected to the outer surface of the filter pipe;

[0020] The aperture of the filter plate is smaller than that of the filter holes. On the upper surface of the filter pipe, there is an oil-gas mixture inlet pipe fixedly connected and communicating with each other;

[0021] The spacing between the blades of the spiral blades is different, and the spacing decreases successively from the end close to the motor to the end away from the motor;

[0022] The separation component includes rectangular holes, and the aperture of the rectangular holes decreases successively from the end close to the motor to the end away from the motor, and the distance between each hole becomes denser;

[0023] One end of the spiral blade, away from the motor, is a tail-end filter plate, and there is an airbag in the rectangular hole on the tail-end filter plate;

[0024] The airbag is an ellipsoidal body, and the airbag is fixedly connected in the rectangular hole on the back inside of the tail-end filter plate;

[0025] In the middle of the airbag, there is a through hole for liquid to flow through;

[0026] The inflated state of the airbag does not exceed the top and bottom inside the rectangular hole. There are multiple airbags, and they are all matched with the rectangular hole;

[0027] There is a cover plate for threaded connection at the front end of the impurity discharge port;

[0028] The support assembly includes a support base. The support base is a rectangular body. The support base is fixedly connected to the bottom of the separation tank and is symmetrically arranged;

[0029] A number of the filter holes are evenly opened on the surface and the edge of the spiral blade;

[0030] One end of the oil-gas mixture inlet pipe close to the impurity discharge port is lower than the end close to the motor.

[0031] By reducing the spacing between the spiral blades, the passing area of the fluid can be effectively increased, so that the fluid is more strongly squeezed and pushed when passing through the spiral blades, thereby improving the pressure boosting capacity of the device. Changing the circular holes of the spiral blades to rectangular holes can change the flow pattern of the fluid, reduce the vortex and turbulence phenomena, and make the fluid flow more smoothly and orderly. This helps to reduce energy loss and improve the fluid transmission efficiency. The rectangular holes make the mixing of water and crude oil more uniform during the water injection process. Because the rectangular holes can guide the fluid to flow in a specific direction, promote the full contact and mixing between different fluids, and are conducive to realizing efficient water injection operation. Description of the Drawings

[0032] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0033] Figure 2 is the cross-sectional structural schematic diagram of the present utility model;

[0034] Figure 3 is the structural schematic diagram of the filter assembly of the present utility model;

[0035] Figure 4 is the second structural schematic diagram of the present utility model;

[0036] Figure 5 is the first structural schematic diagram of the spiral blade of the present utility model;

[0037] Figure 6 is the second structural schematic diagram of the spiral blade of the present utility model;

[0038] Figure 7 is the third structural schematic diagram of the spiral blade of the present utility model.

[0039] In the figure:

[0040] 100. Fixed component; 110. Separation tank; 120. Outlet pipe; 130. Mist eliminator installation cavity; 140. Degassing area; 150. Drain port; 160. Cover plate;

[0041] 200. Filter component; 210. Filter plate; 220. Filter pipe; 230. Filter hole; 240. Oil-gas mixture inlet pipe; 250. Motor; 260. Impurity discharge port;

[0042] 300. Support component; 310. Support base;

[0043] 400. Separation component; 410. Spiral blade; 411. Through hole; 412. Tail end filter plate; 420. Rectangular hole; 430. Airbag. Detailed implementation mode

[0044] For the convenience of understanding the present invention, the present application will be described more comprehensively with reference to the relevant drawings; the preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0045] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation mode.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs; the terms used in the description of the present invention in this specification are only for the purpose of describing specific implementation modes and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0047] Please refer to Figure 1 , which is a schematic three-dimensional structure diagram of one kind of the present invention; through optimizing and improving the integrated device for crude oil water separation, water addition, pressure boosting and external transportation in the prior art, the present application reduces the spacing of the spiral blades to narrow the flow channel when water flows through the spiral blades, and the water flow speed is accelerated, thereby enhancing the mixing effect between oil and water. Then, the shape of the through hole is improved to a rectangular hole, and the design of the rectangular hole can generate more disturbances and turbulences when the fluid passes through, which helps to accelerate the separation process of the gas-liquid two-phase, so that more energy is used to push the fluid forward, thereby improving the output pressure of the system to a certain extent. This can not only improve the processing efficiency and stability of the equipment, but also make the equipment structure more compact and reasonable.

[0048] Example 1: As Figures 1 to 5As shown in the figure, an integrated device for crude oil water separation, water mixing, pressurization and external transportation according to the present application includes a fixing component 100, a support component 300, a filtering component 200 and a separation component 400;

[0049] The fixing component 100 includes a separation tank 110, an air outlet pipe 120, a mist eliminator installation cavity 130, a degassing area 140, and a sewage outlet 150;

[0050] The separation tank 110 is an oval body, and one end of the separation tank 110 is fixedly connected to an air outlet pipe 120;

[0051] The air outlet pipe 120 is a cylindrical body, there are two air outlet pipes 120, and a sewage outlet 150 is fixedly connected to the lower surface of the separation tank 110 near one end of the air outlet pipe 120;

[0052] One side of the sewage outlet 150 away from the air outlet pipe 120 is fixedly connected to a degassing area 140;

[0053] One side of the degassing area 140 away from the sewage outlet 150 is fixedly connected to a mist eliminator installation cavity 130, and a filtering component 200 is arranged on one side of the separation tank 110 away from the air outlet pipe 120;

[0054] The filtering component 200 includes a filter plate 210, a filter pipe 220, filter holes 230, an oil-gas mixture inlet pipe 240, a motor 250, and a waste discharge port 260;

[0055] The filter plate 210 is horizontally arranged on one side of the separation tank 110 away from the air outlet pipe 120. The filter plate 210 is a rectangular body, and a filter pipe 220 is arranged directly above the filter plate 210;

[0056] The filter pipe 220 is fixedly connected inside the separation tank 110 and extends out at both ends. The filter pipe 220 is a cylindrical body, and a plurality of filter holes 230 are opened on the upper surface of the filter pipe 220 that cooperates with the inside of the separation tank 110;

[0057] A waste discharge port 260 is opened at one end of the filter pipe 220;

[0058] A separation component 400 is arranged inside the filter pipe 220;

[0059] The separation component 400 includes a spiral blade 410;

[0060] The spiral blade 410 is rotatably connected inside the filter pipe 220, and a plurality of through holes 411 are opened on the surface of the spiral blade 410;

[0061] The through hole 411 has the same aperture as the filtering hole 230. One end of the spiral blade 410 away from the impurity discharge port 260 is fixedly connected to a motor 250, and the motor 250 is fixedly connected to the outer surface of the filter tube 220;

[0062] The filter plate 210 is smaller than the aperture of the filtering hole 230. An oil-gas mixture inlet pipe 240 that communicates with each other is fixedly connected to the upper surface of the filter tube 220;

[0063] The distances between the blades of the spiral blade 410 are different, and the distance sizes decrease in sequence from the end close to the motor 250 to the end away from the motor 250;

[0064] A cover plate 160 for threaded connection is provided at the front end of the impurity discharge port 260;

[0065] The support assembly 300 includes a support base 310. The support base 310 is a rectangular body. The support base 310 is fixedly connected to the bottom of the separation tank 110, and the support bases 310 are symmetrically arranged;

[0066] A plurality of the filtering holes 230 are evenly formed on the surface and the edge of the spiral blade 410;

[0067] One end of the oil-gas mixture inlet pipe 240 close to the impurity discharge port 260 is lower than one end close to the motor 250.

[0068] The technical solutions in the embodiments of the present application described above have at least the following technical effects or advantages:

[0069] Reducing the spacing of the spiral blades 410 will narrow the flow channel when the water flow passes through the spiral blades 410, accelerating the water flow velocity, thereby enhancing the mixing effect between oil and water. This helps to mix crude oil and water more fully, improve the water separation efficiency, and reduce the energy consumption and cost in the subsequent treatment process. The guiding effect of the spiral blades 410 makes the water layer spiral forward in the pipeline and generates centrifugal force. Reducing the spacing can further intensify this centrifugal effect, which is beneficial to the formation and stability of the water ring. A stable water ring can reduce the turbulence and eddy current of the fluid in the pipeline, reduce energy loss, improve the fluid transportation efficiency. Reducing the spacing of the spiral blades 410 can make the flow of the fluid in the pipeline more uniform and stable, reduce the fluctuation of the flow resistance, thereby improving the stability of the entire system. Unstable flow may lead to an increase in vibration and noise of the pipeline and equipment. By optimizing the spacing of the spiral blades 410, this unstable flow phenomenon can be reduced, thereby reducing the vibration and noise levels and protecting the equipment and pipeline from damage. Enhancing the mixing effect and promoting the formation of the water ring can reduce the energy loss of the fluid in the pipeline, enabling more energy to be used to push the fluid forward, thereby increasing the output pressure of the system to a certain extent. This can not only improve the processing efficiency and stability of the equipment, but also make the equipment structure more compact and reasonable, reduce the floor area and manufacturing cost. The equipment structure after adjusting the pitch may make the maintenance and management work simpler and more efficient. A more compact equipment structure can reduce the workload of inspection and maintenance; a more stable system operation can reduce the failure rate and downtime.

[0070] Embodiment 2: In order to further improve the applicability of an integrated device for crude oil water separation, water mixing, pressurization and external transportation of the present application and the convenience during use, the embodiment of the present application optimizes and improves the through holes of the spiral blades 410. Specifically:

[0071] As Figure 6 shown, the separation component 400 further includes rectangular holes 420, and the aperture of the rectangular holes 420 increases sequentially from the end close to the motor 250 to the end far from the motor 250, and the distance between each hole becomes denser.

[0072] The design of the rectangular holes 420 can generate more disturbances and turbulences when the fluid passes through, which helps to accelerate the separation process of the gas-liquid two-phase. The density difference in the turbulence is easier to be amplified, thus improving the separation effect. The layout of the rectangular holes 420 can guide the fluid to form a more complex flow field around the spiral blades 410, making it easier for the gas-liquid two-phase to separate during the flow process. Compared with circular holes or holes of other shapes, the rectangular holes 420 have better self-cleaning ability at a specific angle. When impurities or particles in the fluid try to block the orifice, the edges of the rectangular holes 420 can more easily push them away or guide them through, thus reducing the risk of blockage. The design of the rectangular holes 420 helps to maintain the smoothness of the fluid flow, reducing the reduction of flow rate or pressure loss caused by the blockage of the orifice. The design of the rectangular holes 420 can increase the rigidity of the spiral blades 410 to a certain extent, because the edges of the rectangular holes 420 can serve as additional support structures, helping to resist the influence of fluid impact and vibration. The enhanced rigidity means that the spiral blades 410 can withstand higher working pressures and harsher working environments, thus improving the durability and reliability of the entire device. The design of the rectangular holes 420 is relatively simple and can be processed using standard machining equipment or processes, thus simplifying the processing process and reducing the manufacturing cost. Since the shape of the rectangular holes 420 is regular and easy to measure, the machining accuracy can be more easily controlled during the processing, ensuring the manufacturing quality of the spiral blades 410.

[0073] Embodiment 3: In order to further improve the applicability of an integrated device for crude oil water separation, water blending, pressurization and external transportation of the present application and the convenience during the use process, the embodiment of the present application optimizes and improves the rectangular holes 420 on the end filter plate 412, specifically as follows:

[0074] As Figure 7 shown, one end of the spiral blade 410 away from the motor is the end filter plate, and there is an airbag 430 in the rectangular hole 420 on the end filter plate 412;

[0075] The airbag 430 is an ellipsoid, the airbag 430 is fixedly connected in the rectangular hole 420 inside the back surface of the end filter plate 412, a hole for liquid to flow through is arranged in the middle of the airbag 430, the inflated state of the airbag 430 does not exceed the top and bottom inside the rectangular hole 420, and there are multiple airbags 430, and all of them cooperate with the rectangular hole 420.

[0076] The airbag 430 is arranged in the rectangular hole 420 on the back of the tail-end filter plate 412 and is located in the crude oil inlet direction. This enables the crude oil to pass through the airbag 430 during the flowing process, thereby achieving the filtration of impurities in the crude oil. As the crude oil continuously flows, impurities gradually accumulate on the surface of the airbag 430, thus realizing the purification of the crude oil. The airbag 430 also has a certain buffering effect, which can reduce the impact of the crude oil flow on the spiral blade 410, thereby extending the service life of the spiral blade 410. When the crude oil contains relatively large solid particles or impurities, the airbag 430 can prevent these particles from directly impacting the spiral blade 410 and causing damage to the spiral blade 410. When the crude oil passes through the spiral blade 410, due to the blocking effect of the airbag 430, the impurities in the crude oil are intercepted on the surface of the airbag 430. With the accumulation of impurities, the airbag 430 will gradually expand, but due to its elasticity, it can still maintain a certain filtration efficiency. The airbag 430 makes the filtration process more efficient and can effectively remove tiny impurities in the crude oil, reducing the maintenance time and cost. By regularly cleaning the airbag 430, the good state of the spiral blade 410 can be maintained and its service life can be extended. The cleaning process can be carried out when the device is shut down or in a low-flow state, reducing the operation risk.

[0077] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated device for crude oil water separation, water injection, pressure boosting and external transportation, characterized in that, It includes a fixed component (100), a support component (300), a filtering component (200), and a separation component (400); The fixed component (100) includes a separation tank (110), an air outlet pipe (120), a mist eliminator installation cavity (130), a degassing area (140), and a sewage outlet (150); The separation tank (110) is an oval body. One end of the separation tank (110) is fixedly connected to an air outlet pipe (120). The air outlet pipe (120) is a cylindrical body. There are two air outlet pipes (120). One end of the lower surface of the separation tank (110) near the air outlet pipe (120) is fixedly connected to a sewage outlet (150). On the side of the sewage outlet (150) away from the air outlet pipe (120), a degassing area (140) is fixedly connected. On the side of the degassing area (140) away from the sewage outlet (150), a mist eliminator installation cavity (130) is fixedly connected. On the side of the separation tank (110) away from the air outlet pipe (120) inside, a filtering component (200) is arranged; The filtering component (200) includes a filter plate (210), a filter pipe (220), filter holes (230), an oil-gas mixture inlet pipe (240), a motor (250), and a waste discharge port (260); The filter plate (210) is horizontally arranged on the side of the separation tank (110) away from the air outlet pipe (120) inside. The filter plate (210) is a rectangular body. Above the filter plate (210) is arranged a filter pipe (220). The filter pipe (220) is fixedly connected inside the separation tank (110) and extends out at both ends. The filter pipe (220) is a cylindrical body. On the upper surface of the filter pipe (220) that cooperates with the inside of the separation tank (110), a number of filter holes (230) are opened. One end of the filter pipe (220) is provided with a waste discharge port (260); Inside the filter pipe (220) is arranged a separation component (400). The separation component (400) includes a spiral blade (410). The spiral blade (410) is rotatably connected inside the filter pipe (220). On the surface of the spiral blade (410), a number of through holes (411) are opened. The through holes (411) have the same aperture as the filter holes (230). One end of the spiral blade (410) away from the waste discharge port (260) is fixedly connected to a motor (250), and the motor (250) is fixedly connected to the outer surface of the filter pipe (220). The filter plate (210) is smaller than the aperture of the filter holes (230). On the upper surface of the filter pipe (220), an oil-gas mixture inlet pipe (240) that is interconnected is fixedly connected; The distances between the blades of the spiral blade (410) are different, and the distances decrease in sequence from the end close to the motor (250) to the end far from the motor (250).

2. The integrated device for crude oil water separation, water injection, pressure boosting and external transportation according to claim 1, characterized in that: The separation component (400) includes a rectangular hole (420). The aperture size of the rectangular hole (420) decreases in sequence from the end close to the motor (250) to the end far from the motor (250), and the distances between the holes become denser.

3. The integrated device for crude oil water separation, water injection, pressurization and external transportation according to claim 2, wherein: One end of the spiral blade (410) away from the motor (250) is a tail-end filter plate (412), and an airbag (430) is arranged in a rectangular hole (420) on the back surface of the tail-end filter plate (412).

4. The integrated device for crude oil water separation, water injection, pressure boosting and external transportation according to claim 3, wherein: The airbag (430) is an ellipsoid. The airbag (430) is fixedly connected in a rectangular hole inside the back surface of the tail-end filter plate (412). A through hole for liquid to flow through is arranged in the middle of the airbag (430). The inflated state of the airbag (430) does not exceed the top end and the bottom end inside the rectangular hole (420). There are multiple airbags (430), and they all cooperate with the rectangular hole (420).

5. An integrated device for crude oil water separation, water injection, pressure boosting and external transportation according to claim 2, characterized in that: A cover plate (160) for threaded connection is arranged at the front end of the impurity discharge port (260).

6. The integrated device for crude oil water separation, water injection, pressurization and external transportation according to claim 1, wherein: The support assembly (300) includes a support base (310). The support base (310) is a rectangular body. The support base (310) is fixedly connected to the bottom of the separation tank (110), and the support bases (310) are symmetrically arranged.

7. The integrated device for crude oil water separation, water injection, pressure boosting and external transportation according to claim 2, wherein: A number of the filter holes (230) are evenly formed on the surface and the edge of the spiral blade (410).

8. An integrated device for crude oil water separation, water injection, pressure boosting and external transportation according to claim 2, characterized in that: One end of the oil-gas mixture inlet pipe (240) close to the impurity discharge port (260) is lower than one end close to the motor (250).

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