Oil, gas and water three-phase separation and transmission device and method

Abstract

The present invention discloses an oil, gas and water three-phase separation and distribution device and method, including an initial transmission pipeline and a three-phase separation and distribution pipeline assembly, the three-phase separation and distribution pipeline assembly including a pipe seat, an oil, gas and water separation mechanism and a distribution pipeline, the pipe seat including a seat body, a first partition is arranged inside the seat body, and the first partition is used as a boundary to separate the inside of the seat body into a gas-liquid installation cavity and an oil-water separation cavity, the oil, gas and water separation mechanism includes a gas-liquid cyclone separator, a centrifugal separator and a driving motor, and the distribution pipeline includes a pipe body, the pipe body is fixedly connected to the surface of the seat body, and a gas flow channel, an oil flow channel and a water flow channel are respectively opened inside the pipe body. The device can achieve three-phase separation after the oil, gas and water three-phase mixture is discharged from the wellhead and before long-distance transmission, effectively reducing the risk of corrosion failure of the transmission medium to the pipeline, improving the life of the pipeline, and increasing the convenience of oil, gas and water transportation and processing at the pipeline terminal, effectively improving work efficiency and production progress, and having a good use effect.

Description

Technical Field

[0001] The present invention relates to the technical field of oil, gas and water separation, and in particular to an oil, gas and water three-phase separation and transmission device and method. Background Art

[0002] With the continuous advancement of offshore oil and gas resource exploration and exploitation technology, the development of offshore oil and gas fields has gradually penetrated deeper into the sea. In this process, submarine oil and gas pipelines, as an important part of the underwater production system, undertake the key task of transporting the oil and gas resources mined from the seabed to ground facilities, and their importance has become increasingly prominent.

[0003] However, existing submarine oil and gas pipeline designs usually only include one transmission channel, which means that the oil, gas and water mixture can only be transported within this channel. Under high pressure and certain temperature conditions, the different components in this mixture may cause serious internal corrosion to the pipeline, thus affecting the safety and service life of the pipeline. In addition, since the oil, gas and water phases in the mixture have different physical and chemical properties, they may interact with each other during transportation, further exacerbating the corrosion of the pipeline.

[0004] More importantly, the oil, gas and water mixture transported through the submarine oil and gas pipeline needs to be separated into three phases after reaching the surface facilities. This step usually requires the installation of special three-phase separation equipment in the surface facilities, which not only increases the equipment cost and floor space, but also may delay production progress due to low separation efficiency. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the present invention is to propose an oil, gas and water three-phase separation and transmission device and method. The device can achieve three-phase separation of the oil, gas and water three-phase mixture after it is discharged from the wellhead and before long-distance transmission, effectively reducing the risk of corrosion failure of the transmission medium to the pipeline, improving the life of the pipeline, and increasing the convenience of oil, gas and water transportation and processing at the pipeline terminal, effectively improving work efficiency and production progress, and having a good use effect.

[0007] To achieve the above-mentioned purpose, the present invention proposes an oil-gas-water three-phase separation and distribution device, comprising an initial delivery pipeline and a three-phase separation and distribution pipeline assembly, wherein the three-phase separation and distribution pipeline assembly comprises a pipe seat, an oil-gas-water separation mechanism and a distribution pipeline, wherein the pipe seat comprises a seat body, a first partition is arranged inside the seat body, and the interior of the seat body is divided into a gas-liquid installation chamber and an oil-water separation chamber with the first partition as the boundary, a second partition is arranged inside the oil-water separation chamber, and the interior of the oil-water separation chamber is divided into a separator installation chamber, an oil chamber and a water chamber with the second partition as the boundary; the oil-gas-water separation mechanism comprises a gas-liquid cyclone separator, a centrifugal separator and a driving motor, wherein the gas-liquid cyclone separator is fixedly connected to the inner wall of the gas-liquid installation chamber, the centrifugal separator is fixedly connected to the inner wall of the separator installation chamber, the driving motor is fixedly connected to the inner wall of the gas-liquid installation chamber, and the output end of the driving motor passes through the interior of the separator installation chamber and is connected to the driving end of the centrifugal separator ; The distribution pipeline includes a pipe body, which is fixedly connected to the surface of the seat body, and a gas flow channel, an oil flow channel and a water flow channel are respectively opened inside the pipe body, and are arranged in sequence along the vertical direction, wherein the gas flow channel, the oil flow channel and the water flow channel are respectively connected with the interior of the separator installation cavity, the interior of the oil cavity and the interior of the water cavity through a connecting conduit; the input end of the gas-liquid cyclone separator passes through the outside of the seat body and is connected to the output end of the initial conveying pipeline, the gas output end of the gas-liquid cyclone separator passes through the outside of the seat body and is connected to the input end of the connecting conduit corresponding to the position of the gas flow channel, the liquid output end of the gas-liquid cyclone separator passes through the interior of the separator installation cavity and is connected to the input end of the centrifugal separator, the light phase output end of the centrifugal separator passes through the interior of the oil cavity and is connected to the interior of the oil cavity, and the heavy phase output end of the centrifugal separator passes through the interior of the water cavity and is connected to the interior of the water cavity.

[0008] The present invention discloses an oil, gas and water three-phase separation and transmission device. The device can achieve three-phase separation of the oil, gas and water three-phase mixture after it is discharged from the wellhead and before it is transported over long distances, effectively reducing the risk of corrosion failure of the transport medium on the pipeline, increasing the life of the pipeline, and increasing the convenience of transporting and processing oil, gas and water at the pipeline terminal, effectively improving work efficiency and production progress, and having a good use effect.

[0009] In addition, the oil, gas and water three-phase separation and transmission device proposed in the application may also have the following additional technical features:

[0010] Specifically, the tube seat also includes a first tube seat connection component, which includes a first connection end seat, a rectangular positioning socket, a middle connecting pipe, a rectangular end head and a first fixing ring, wherein the first connection end seat is integrally formed and arranged on a side surface of the seat body close to the gas-liquid installation cavity, and corresponds to the input end position of the gas-liquid cyclone separator, the rectangular positioning socket is opened on the surface of the first connection end seat, and is connected to the inside of the gas-liquid installation cavity, the input end of the gas-liquid cyclone separator is located inside the rectangular positioning socket, and is connected to the inside of the rectangular positioning socket, the middle connecting pipe is arranged on the outside of the first connection end seat, and the middle connecting pipe is one-piece. The end is threadedly connected to the outer surface of the output end of the initial delivery pipeline, and the other end of the middle connecting pipe is integrally formed with the rectangular end head, which is located inside the rectangular positioning socket and communicated with the inside of the rectangular positioning socket. One end of the first fixing ring is threadedly connected to the outer surface of the middle connecting pipe, and the other end of the first fixing ring is threadedly connected to the outer surface of the first connecting end seat; the pipe seat also includes a second pipe seat connection assembly, which includes a second connecting end seat, a first branch pipe, a second branch pipe, a third branch pipe, a threaded end seat, an air pipe inlet, an oil pipe inlet, a water pipe inlet and a second fixing ring, wherein the second connecting end seat is fixedly connected to The seat body is close to the side surface of the oil-water separation chamber, the first branch pipe, the second branch pipe and the third branch pipe are respectively fixedly connected to the side surface of the second connecting end seat, and are arranged in sequence along the vertical direction, one end of the first branch pipe penetrates into the gas-liquid installation chamber and is connected to the gas output end of the gas-liquid cyclone separator, one end of the second branch pipe penetrates into the oil chamber and is connected to the oil chamber, one end of the third branch pipe penetrates into the water chamber and is connected to the water chamber, the threaded end seat is integrally formed and arranged on the other side surface of the second connecting end seat, and the air pipe inlet, the oil pipe inlet and the water pipe inlet are respectively opened in the The inner wall of the threaded end seat is arranged in sequence along the vertical direction. Three groups of liquid flow channels are respectively opened inside the second connecting end seat and the threaded end seat, and are connected. One end of the first branch pipe, one end of the second branch pipe and one end of the third branch pipe are respectively connected to the air pipe inlet, the oil pipe inlet and the water pipe inlet through the liquid flow channel. One end of the three groups of connecting conduits corresponding to the positions of the gas flow channel, the oil flow channel and the water flow channel are respectively connected to the air pipe inlet, the oil pipe inlet and the water pipe inlet. One end of the second fixing ring is threadedly connected to the outer surface of the tube body, and the other end of the second fixing ring is threadedly connected to the outer surface of the threaded end seat.

[0011] Specifically, the second pipe seat connection assembly also includes a mounting groove and a through hole. The mounting groove is arranged on a side surface of the seat body close to the oil-water separation chamber and is adapted to the outer dimensions of the second connection end seat. The through hole is arranged on the inner wall of the mounting groove. The second connection end seat is located inside the mounting groove and is fixedly connected to the inner wall of the mounting groove by a locking bolt. The first branch pipe, the second branch pipe and the third branch pipe respectively penetrate into the gas-liquid mounting chamber, the oil chamber and the water chamber through the through hole.

[0012] Specifically, the tube body also includes a line mechanism, which includes a wire channel, a conductor, a fourth branch pipe and a wire inlet, wherein a wire channel is opened inside the tube body, the conductor is arranged inside the wire channel, the fourth branch pipe is fixedly connected to the side surface of the second connecting end seat, one end of the fourth branch pipe penetrates into the gas-liquid installation cavity, the wire inlet is opened on the inner wall of the threaded end seat, and is connected to the inside of the fourth branch pipe through a liquid flow channel, one end of the wire penetrates into the gas-liquid installation cavity through the connecting conduit, the wire inlet and the fourth branch pipe, and is connected to the drive motor.

[0013] Specifically, an automatic backwashing filter is connected between the input end of the intermediate connecting pipe and the output end of the initial delivery pipeline, and the automatic backwashing filter is connected to one end of the wire.

[0014] A method for using an oil-gas-water three-phase separation and delivery device is applied to an oil-gas-water three-phase separation and delivery device, comprising the following steps:

[0015] S1: The oil-gas-water three-phase mixture in the initial delivery pipeline flows into the first pipe seat connection component after the impurities are filtered out by the automatic backwashing filter, and then flows from the first pipe seat connection component into the gas-liquid cyclone separator for gas-liquid separation;

[0016] S2: The separated gas flows into the gas flow channel in the tube body through the second tube base connecting assembly to realize separate gas transportation;

[0017] S3: The separated oil-water mixture flows to the inside of the centrifugal separator, and the oil-water separation is achieved through the centrifugal separator. The water with a higher specific gravity flows to the inside of the water cavity through the heavy phase output end of the centrifugal separator, and then flows from the inside of the water cavity to the inside of the second pipe seat connecting assembly, and finally flows from the inside of the second pipe seat connecting assembly to the inside of the water body flow channel in the pipe body, so that the water is transported alone. The oil with a lower specific gravity flows to the inside of the oil cavity through the light phase output end of the centrifugal separator, and then flows from the inside of the oil cavity to the inside of the second pipe seat connecting assembly, and finally flows from the inside of the second pipe seat connecting assembly to the inside of the oil body flow channel in the pipe body, so that the oil is transported alone. At this point, the three phases of gas, oil and water are preliminarily separated by the oil-gas-water separation mechanism, and are transported through the gas flow channel, the oil flow channel and the water flow channel respectively.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic structural diagram of an oil, gas and water three-phase separation and transmission device and method of the present invention;

[0021] Figure 2 It is a schematic diagram of the pipe seat structure in an oil, gas and water three-phase separation and transmission device and method of the present invention;

[0022] Figure 3 It is a structural schematic diagram of an oil-gas-water separation mechanism in an oil-gas-water three-phase separation and transmission device and method of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of a distribution pipeline in an oil, gas and water three-phase separation and distribution device and method of the present invention;

[0024] Figure 5 This is a schematic structural diagram of a first pipe socket connection assembly in an oil, gas and water three-phase separation and transmission device and method of the present invention;

[0025] Figure 6 It is a schematic structural diagram of a second pipe seat connection assembly in an oil, gas and water three-phase separation and transmission device and method of the present invention.

[0026] As shown in the figure:

[0027] 1. Initial transmission pipeline; 2. Three-phase separation and distribution pipeline assembly; 20. Pipe seat; 30. Oil, gas and water separation mechanism; 40. Distribution pipeline;

[0028] 21. seat body; 22. first baffle; 23. gas-liquid installation chamber; 24. oil-water separation chamber; 25. second baffle; 26. separator installation chamber; 27. oil chamber; 28. water chamber;

[0029] 31. Gas-liquid cyclone separator; 32. Centrifugal separator; 33. Drive motor;

[0030] 41. pipe body; 42. gas flow channel; 43. oil flow channel; 44. water flow channel; 100. connecting conduit;

[0031] 50. First pipe socket connection assembly; 51. First connection end seat; 52. Rectangular positioning socket; 53. Middle connecting pipe; 54. Rectangular end head; 55. First fixing ring;

[0032] 60, second pipe seat connection assembly; 62, second connection end seat; 63, first branch pipe; 64, second branch pipe; 65, third branch pipe; 67, threaded end seat; 68, oil pipe inlet; 69, water pipe inlet; 610, second fixing ring; 61, mounting groove; 66, through hole;

[0033] 70. Line mechanism; 71. Line channel; 72. Conductor; 73. Fourth branch pipe; 74. Conductor entrance;

[0034] 80. Automatic backwash filter. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limitations of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0036] An oil, gas and water three-phase separation and transmission device and method according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0037] like Figure 1-Figure 6As shown, an oil-gas-water three-phase separation and distribution device according to an embodiment of the present invention comprises an initial delivery pipeline 1 and a three-phase separation and distribution pipeline assembly 2, wherein the three-phase separation and distribution pipeline assembly 2 comprises a pipe seat 20, an oil-gas-water separation mechanism 30 and a distribution pipeline 40, wherein the pipe seat 20 comprises a seat body 21, a first partition plate 22 is arranged inside the seat body 21, and the interior of the seat body 21 is divided into a gas-liquid installation chamber 23 and an oil-water separation chamber 24 with the first partition plate 22 as the boundary, and a second partition plate 25 is arranged inside the oil-water separation chamber 24, and the second partition plate 25 is arranged inside the oil-water separation chamber 24, and the second partition plate 25 is arranged inside the oil-water separation chamber 24, and the oil-water separation chamber 24 is provided with a gas-liquid installation chamber 23 and an oil-water separation chamber 24 with the first partition plate 22 as the boundary, and the oil-water separation chamber 24 is provided with a gas-liquid installation chamber 23 and an oil-water separation chamber 24 with the first partition plate 25 ... 25 is the boundary to divide the oil-water separation chamber 24 into a separator installation chamber 26, an oil chamber 27 and a water chamber 28; the oil-gas-water separation mechanism 30 includes a gas-liquid cyclone separator 31, a centrifugal separator 32 and a drive motor 33, wherein the gas-liquid cyclone separator 31 is fixedly connected to the inner wall of the gas-liquid installation chamber 23, the centrifugal separator 32 is fixedly connected to the inner wall of the separator installation chamber 26, the drive motor 33 is fixedly connected to the inner wall of the gas-liquid installation chamber 23, and the output end of the drive motor 33 penetrates into the separator installation chamber 26 and is connected to the centrifugal separator 32. The distribution pipeline 40 includes a pipe body 41, which is fixedly connected to the surface of the seat body 21, and the gas flow channel 42, the oil flow channel 43 and the water flow channel 44 are respectively opened inside the pipe body 41, and are arranged in sequence along the vertical direction, wherein the gas flow channel 42, the oil flow channel 43 and the water flow channel 44 are respectively connected to the inside of the separator installation chamber 26, the inside of the oil chamber 27 and the inside of the water chamber 28 through the connecting conduit 100; the input end of the gas-liquid cyclone separator 31 passes through the outside of the seat body 21 and is connected to the initial delivery pipeline 1 The output ends are connected, the gas output end of the gas-liquid cyclone separator 31 passes through the outside of the seat body 21, and is connected to the input end of the connecting conduit 100 corresponding to the position of the gas flow channel 42, the liquid output end of the gas-liquid cyclone separator 31 passes through the inside of the separator installation cavity 26, and is connected to the input end of the centrifugal separator 32, the light phase output end of the centrifugal separator 32 passes through the inside of the oil inlet cavity 27, and is connected to the inside of the oil cavity 27, the heavy phase output end of the centrifugal separator 32 passes through the inside of the water inlet cavity 28, and is connected to the inside of the water cavity 28.

[0038] Specifically, the oil-gas-water three-phase mixture inside the initial delivery pipeline 1 is filtered for impurities by the automatic backwash filter 80 and then flows to the first pipe seat connection component 50, and then flows from the first pipe seat connection component 50 to the gas-liquid cyclone separator 31 for gas-liquid separation. The first pipe seat connection component 50 controls the oil-gas-water three-phase mixture within a suitable flow rate range by reducing the output end pipe diameter. Within this range, the flow rate can ensure sufficient impact force to form a stable vortex without causing increased turbulence, energy loss or decreased separation efficiency, and has a good use effect. The separated gas flows to the gas flow channel 42 in the pipe body 41 through the second pipe seat connection component 60 to realize separate gas transportation. The separated oil-water mixture flows to the inside of the centrifuge 32 and passes through the centrifuge. 32 realizes oil-water separation, the water with high specific gravity flows to the inside of the water cavity 28 through the heavy phase output end of the centrifugal separator 32, and then flows from the inside of the water cavity 28 to the inside of the second pipe seat connecting component 60, and finally flows from the inside of the second pipe seat connecting component 60 to the inside of the water body flow channel 44 in the pipe body 41, so that the water is transported alone, and the oil with low specific gravity flows to the inside of the oil cavity 27 through the light phase output end of the centrifugal separator 32, and then flows from the inside of the oil cavity 27 to the inside of the second pipe seat connecting component 60, and finally flows from the inside of the second pipe seat connecting component 60 to the inside of the oil body flow channel 43 in the pipe body 41, so that the oil is transported alone. At this point, the three phases of gas, oil and water are preliminarily separated by the oil-gas-water separation mechanism 30, and are transported through the gas flow channel 42, the oil flow channel 43 and the water flow channel 44 respectively, with good use effect.

[0039] In one embodiment of the present invention, Figure 4-Figure 6As shown, the tube seat 20 also includes a first tube seat connection component 50, which includes a first connection end seat 51, a rectangular positioning socket 52, a middle connecting pipe 53, a rectangular end head 54 and a first fixing ring 55, wherein the first connection end seat 51 is integrally formed and arranged on a side surface of the seat body 21 close to the gas-liquid installation cavity 23, and corresponds to the input end position of the gas-liquid cyclone separator 31, the rectangular positioning socket 52 is opened on the surface of the first connection end seat 51, and is connected to the inside of the gas-liquid installation cavity 23, the input end of the gas-liquid cyclone separator 31 is located inside the rectangular positioning socket 52, and is connected to the inside of the rectangular positioning socket 52, the middle connecting pipe 53 is arranged on the outside of the first connection end seat 51, and the middle connecting pipe 53 is arranged on the outside of the first connection end seat 51. One end of the intermediate connecting pipe 53 is threadedly connected to the outer surface of the output end of the initial conveying pipeline 1, and the other end of the intermediate connecting pipe 53 is integrally formed with a rectangular end head 54, which is located inside the rectangular positioning socket 52 and communicated with the inside of the rectangular positioning socket 52. One end of the first fixing ring 55 is threadedly connected to the outer surface of the intermediate connecting pipe 53, and the other end of the first fixing ring 55 is threadedly connected to the outer surface of the first connecting end seat 51; the pipe seat 20 also includes a second pipe seat connection assembly 60, and the second pipe seat connection assembly 60 includes a second connecting end seat 62, a first branch pipe 63, a second branch pipe 64, a third branch pipe 65, a threaded end seat 67, an air pipe inlet, an oil pipe inlet 68, a water pipe inlet 69 and a second fixing ring 610, wherein, The second connecting end seat 62 is fixedly connected to the side surface of the seat body 21 close to the oil-water separation chamber 24. The first branch pipe 63, the second branch pipe 64 and the third branch pipe 65 are respectively fixedly connected to the side surface of the second connecting end seat 62 and are arranged in sequence along the vertical direction. One end of the first branch pipe 63 passes through the inside of the gas-liquid installation chamber 23 and is connected to the gas output end of the gas-liquid cyclone separator 31. One end of the second branch pipe 64 passes through the inside of the oil inlet chamber 27 and is connected to the inside of the oil chamber 27. One end of the third branch pipe 65 passes through the inside of the water inlet chamber 28 and is connected to the inside of the water chamber 28. The threaded end seat 67 is integrally formed and arranged on the other side surface of the second connecting end seat 62. The gas pipe inlet, the oil pipe inlet 68 and the water pipe inlet 69 are respectively Opened on the inner wall of the threaded end seat 67 and arranged in sequence along the vertical direction, three groups of liquid flow channels are respectively opened inside the second connecting end seat 62 and the threaded end seat 67, and are connected. One end of the first branch pipe 63, one end of the second branch pipe 64 and one end of the third branch pipe 65 are respectively connected to the inside of the air pipe inlet, the oil pipe inlet 68 and the water pipe inlet 69 through the liquid flow channels. One end of the three groups of connecting conduits 100 corresponding to the positions of the gas flow channel 42, the oil flow channel 43 and the water flow channel 44 are respectively connected to the inside of the air pipe inlet, the oil pipe inlet 68 and the water pipe inlet 69. One end of the second fixing ring 610 is threadedly connected to the outer surface of the tube body 41, and the other end of the second fixing ring 610 is threadedly connected to the outer surface of the threaded end seat 67.

[0040] Specifically, the first pipe seat connection assembly 50 is provided to facilitate connection with the initial delivery pipeline 1, and the oil-gas-water three-phase mixture is controlled within a suitable flow rate range by reducing the output end pipeline diameter. Within this range, the flow rate can ensure sufficient impact force to form a stable vortex, and will not cause increased turbulence, energy loss or decreased separation efficiency, and the use effect is good. The second pipe seat connection assembly 60 is provided to facilitate the installation of the pipe body 41, and it is also convenient for the gas flow channel 42, the oil flow channel 43 and the water flow channel 44 to be connected to the gas output end of the gas-liquid cyclone separator 31, the inside of the oil chamber 27 and the inside of the water chamber 28, respectively, and the use effect is good.

[0041] In one embodiment of the present invention, Figure 6 As shown, the second pipe seat connection assembly 60 also includes a mounting groove 61 and a through hole 66. The mounting groove 61 is arranged on a side surface of the seat body 21 close to the oil-water separation chamber 24 and is adapted to the outer dimensions of the second connection end seat 62. The through hole 66 is arranged on the inner wall of the mounting groove 61. The second connection end seat 62 is located inside the mounting groove 61 and is fixedly connected to the inner wall of the mounting groove 61 by a locking bolt. The first branch pipe 63, the second branch pipe 64 and the third branch pipe 65 pass through the through hole 66 to penetrate the interior of the air-liquid mounting chamber 23, the interior of the oil chamber 27 and the interior of the water chamber 28 respectively.

[0042] Specifically, the design of the mounting groove 61 facilitates the quick positioning and mounting of the second connection end seat 62 , and the design of the through hole 66 facilitates the branch pipe to penetrate into the interior of the seat body 21 , resulting in a good use effect.

[0043] In one embodiment of the present invention, Figure 4-Figure 6 As shown, the tube body 41 also includes a line mechanism 70, which includes a line channel 71, a wire 72, a fourth branch pipe 73 and a wire inlet 74, wherein a line channel 71 is opened inside the tube body 41, the wire 72 is arranged inside the line channel 71, the fourth branch pipe 73 is fixedly connected to the surface of one side of the second connecting terminal seat 62, one end of the fourth branch pipe 73 passes through the inside of the air inlet liquid installation cavity 23, the wire inlet 74 is opened on the inner wall of the threaded terminal seat 67, and is connected to the inside of the fourth branch pipe 73 through the liquid flow channel, one end of the wire 72 passes through the inside of the air inlet liquid installation cavity 23 through the connecting conduit 100, the wire inlet 74 and the fourth branch pipe 73, and is connected to the drive motor 33.

[0044] Specifically, the design of the wire channel 71 facilitates the placement of the wire 72, thereby supplying power to the drive motor 33 and the automatic backwash filter 80, and the use effect is good.

[0045] In one embodiment of the present invention, Figure 5 As shown, an automatic backwashing filter 80 is connected between the input end of the middle connecting pipe 53 and the output end of the initial conveying pipeline 1 , and the automatic backwashing filter 80 is connected to one end of the wire 72 .

[0046] It should be noted that the automatic backwash filter 80 described in this embodiment is a prior art and will not be described in detail here.

[0047] Specifically, an automatic backwash filter 80 is provided for filtering impurities, and its built-in automatic backwash function can realize self-cleaning, thereby ensuring a stable filtering effect and good effect of long-term underwater use.

[0048] A method for using an oil-gas-water three-phase separation and delivery device is applied to an oil-gas-water three-phase separation and delivery device, comprising the following steps:

[0049] S1: The oil-gas-water three-phase mixture in the initial delivery pipeline 1 flows into the first pipe base connection assembly 50 after the impurities are filtered out by the automatic backwashing filter 80, and then flows from the first pipe base connection assembly 50 to the gas-liquid cyclone separator 31 for gas-liquid separation;

[0050] S2: The separated gas flows into the gas flow channel 42 in the tube body 41 through the second tube base connection assembly 60, so as to realize separate gas transportation;

[0051] S3: The separated oil-water mixture flows to the inside of the centrifugal separator 32, and the oil-water separation is realized by the centrifugal separator 32. The water with a large specific gravity flows to the inside of the water cavity 28 through the heavy phase output end of the centrifugal separator 32, and then flows from the inside of the water cavity 28 to the inside of the second pipe seat connecting component 60, and finally flows from the inside of the second pipe seat connecting component 60 to the inside of the water body flow channel 44 in the pipe body 41, so that the water is transported alone. The oil with a small specific gravity flows to the inside of the oil cavity 27 through the light phase output end of the centrifugal separator 32, and then flows from the inside of the oil cavity 27 to the inside of the second pipe seat connecting component 60, and finally flows from the inside of the second pipe seat connecting component 60 to the inside of the oil body flow channel 43 in the pipe body 41, so that the oil is transported alone. At this point, the three phases of gas, oil and water are preliminarily separated by the oil-gas-water separation mechanism 30, and are transported through the gas flow channel 42, the oil flow channel 43 and the water flow channel 44 respectively.

[0052] In summary, the oil, gas and water three-phase separation and transmission device and method of the embodiment of the present invention can achieve three-phase separation after the oil, gas and water three-phase mixture is discharged from the wellhead and before long-distance transmission, effectively reducing the risk of corrosion failure of the transmission medium to the pipeline, improving the life of the pipeline, and increasing the convenience of oil, gas and water transportation and treatment at the pipeline terminal, effectively improving work efficiency and production progress, and having a good use effect.

[0053] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. An oil, gas and water three-phase separation and transmission device, characterized in that: It comprises an initial transmission pipeline (1) and a three-phase separation transmission pipeline component (2), wherein: The three-phase separation and distribution pipeline assembly (2) comprises a pipe seat (20), an oil-gas-water separation mechanism (30) and a distribution pipeline (40), wherein the pipe seat (20) comprises a seat body (21), a first partition plate (22) is arranged inside the seat body (21), and the first partition plate (22) is used as a boundary to separate the inside of the seat body (21) into a gas-liquid installation chamber (23) and an oil-water separation chamber (24), and a second partition plate (25) is arranged inside the oil-water separation chamber (24), and the second partition plate (25) is used as a boundary to separate the inside of the oil-water separation chamber (24) into a separator installation chamber (26), an oil chamber (27) and a water chamber (28); The oil-gas-water separation mechanism (30) comprises a gas-liquid cyclone separator (31), a centrifugal separator (32) and a drive motor (33), wherein the gas-liquid cyclone separator (31) is fixedly connected to the inner wall of the gas-liquid installation cavity (23), the centrifugal separator (32) is fixedly connected to the inner wall of the separator installation cavity (26), the drive motor (33) is fixedly connected to the inner wall of the gas-liquid installation cavity (23), and the output end of the drive motor (33) penetrates into the interior of the separator installation cavity (26) and is connected to the drive end of the centrifugal separator (32); The distribution pipeline (40) comprises a pipe body (41), the pipe body (41) being fixedly connected to the surface of the seat body (21), and the pipe body (41) is provided with a gas flow channel (42), an oil flow channel (43) and a water flow channel (44) respectively, and the gas flow channel (42), the oil flow channel (43) and the water flow channel (44) are arranged in sequence along the vertical direction, wherein the gas flow channel (42), the oil flow channel (43) and the water flow channel (44) are respectively connected to the interior of the separator installation cavity (26), the interior of the oil cavity (27) and the interior of the water cavity (28) through a connecting conduit (100); The input end of the gas-liquid cyclone separator (31) passes through the outside of the seat body (21) and is connected to the output end of the initial delivery pipeline (1); the gas output end of the gas-liquid cyclone separator (31) passes through the outside of the seat body (21) and is connected to the input end of the connecting conduit (100) corresponding to the position of the gas flow channel (42); the liquid output end of the gas-liquid cyclone separator (31) passes through the inside of the separator installation cavity (26) and is connected to the input end of the centrifugal separator (32); the light phase output end of the centrifugal separator (32) passes through the inside of the oil cavity (27) and is connected to the inside of the oil cavity (27); the heavy phase output end of the centrifugal separator (32) passes through the inside of the water cavity (28) and is connected to the inside of the water cavity (28); The tube seat (20) further comprises a first tube seat connection assembly (50), the first tube seat connection assembly (50) comprising a first connection end seat (51), a rectangular positioning socket (52), a middle connecting tube (53), a rectangular end head (54) and a first fixing ring (55), wherein: The first connection end seat (51) is integrally formed and arranged on a side surface of the seat body (21) close to the gas-liquid installation cavity (23), and corresponds to the input end position of the gas-liquid cyclone separator (31); the rectangular positioning plug hole (52) is provided on the surface of the first connection end seat (51), and is connected to the inside of the gas-liquid installation cavity (23); the input end of the gas-liquid cyclone separator (31) is located inside the rectangular positioning plug hole (52), and is connected to the inside of the rectangular positioning plug hole (52); the middle connecting pipe (53) is arranged in the first On the outside of the connecting end seat (51), one end of the middle connecting pipe (53) is threadedly connected to the outer surface of the output end of the initial conveying pipeline (1), and the other end of the middle connecting pipe (53) is integrally formed with the rectangular end head (54), the rectangular end head (54) is located inside the rectangular positioning plug hole (52) and is connected to the inside of the rectangular positioning plug hole (52), one end of the first fixing ring (55) is threadedly connected to the outer surface of the middle connecting pipe (53), and the other end of the first fixing ring (55) is threadedly connected to the outer surface of the first connecting end seat (51); The pipe seat (20) further comprises a second pipe seat connection assembly (60), the second pipe seat connection assembly (60) comprising a second connection end seat (62), a first branch pipe (63), a second branch pipe (64), a third branch pipe (65), a threaded end seat (67), an air pipe inlet, an oil pipe inlet (68), a water pipe inlet (69) and a second fixing ring (610), wherein: The second connecting end seat (62) is fixedly connected to a side surface of the seat body (21) close to the oil-water separation chamber (24); the first branch pipe (63), the second branch pipe (64) and the third branch pipe (65) are respectively fixedly connected to a side surface of the second connecting end seat (62) and are arranged in sequence along the vertical direction; one end of the first branch pipe (63) penetrates into the gas-liquid installation chamber (23) and is connected to the gas output end of the gas-liquid cyclone separator (31); one end of the second branch pipe (64) penetrates into the oil chamber (27) and is connected to the oil chamber (27); one end of the third branch pipe (65) penetrates into the water chamber (28) and is connected to the water chamber (28); the threaded end seat (67) is integrally formed and arranged on the other side surface of the second connecting end seat (62); the gas pipe inlet, the oil pipe inlet (68) and the water pipe inlet (65) are connected to the gas output end of the gas-liquid cyclone separator (31); 9) are respectively opened on the inner wall of the threaded end seat (67) and are arranged in sequence along the vertical direction; three groups of liquid flow channels are respectively opened inside the second connection end seat (62) and the threaded end seat (67) and are connected; one end of the first branch pipe (63), one end of the second branch pipe (64) and one end of the third branch pipe (65) are respectively connected to the inside of the gas pipe inlet, the oil pipe inlet (68) and the water pipe inlet (69) through the liquid flow channels; one end of the three groups of connecting conduits (100) corresponding to the positions of the gas flow channel (42), the oil flow channel (43) and the water flow channel (44) are respectively connected to the inside of the gas pipe inlet, the oil pipe inlet (68) and the water pipe inlet (69); one end of the second fixing ring (610) is threadedly connected to the outer surface of the tube body (41), and the other end of the second fixing ring (610) is threadedly connected to the outer surface of the threaded end seat (67); The second pipe seat connection assembly (60) further comprises a mounting groove (61) and a through hole (66); the mounting groove (61) is formed on a side surface of the seat body (21) close to the oil-water separation chamber (24) and is adapted to the external dimensions of the second connection end seat (62); the through hole (66) is formed on the inner wall of the mounting groove (61); the second connection end seat (62) is located inside the mounting groove (61) and is fixedly connected to the inner wall of the mounting groove (61) by means of locking bolts; the first branch pipe (63), the second branch pipe (64) and the third branch pipe (65) respectively penetrate into the interior of the gas-liquid mounting chamber (23), the interior of the oil chamber (27) and the interior of the water chamber (28) through the through hole (66).

2. The oil, gas and water three-phase separation and transmission device according to claim 1 is characterized in that: The tube body (41) further comprises a line mechanism (70), wherein the line mechanism (70) comprises a line channel (71), a conductor (72), a fourth branch tube (73) and a conductor inlet (74), wherein: A wire channel (71) is provided inside the tube body (41), the wire (72) is arranged inside the wire channel (71), the fourth branch pipe (73) is fixedly connected to a side surface of the second connecting end seat (62), one end of the fourth branch pipe (73) penetrates into the gas-liquid installation cavity (23), the wire inlet (74) is provided on the inner wall of the threaded end seat (67), and is connected to the inside of the fourth branch pipe (73) through a liquid flow channel, one end of the wire (72) penetrates into the gas-liquid installation cavity (23) through the connecting conduit (100), the wire inlet (74) and the fourth branch pipe (73), and is connected to the driving motor (33).

3. The oil, gas and water three-phase separation and transmission device according to claim 2 is characterized in that: An automatic backwashing filter (80) is connected between the input end of the intermediate connecting pipe (53) and the output end of the initial delivery pipeline (1), and the automatic backwashing filter (80) is connected to one end of the conductive wire (72).

4. A method for using an oil, gas and water three-phase separation and transmission device, characterized in that: The oil-gas-water three-phase separation and transmission device as claimed in claim 3 comprises the following steps: S1: the oil, gas and water three-phase mixture inside the initial delivery pipeline (1) is filtered for impurities by the automatic backwash filter (80) and then flows into the first pipe seat connection component (50), and then flows from the first pipe seat connection component (50) to the gas-liquid cyclone separator (31) for gas-liquid separation; S2: the separated gas flows through the second tube base connection assembly (60) to the inside of the gas flow channel (42) in the tube body (41), thereby achieving separate gas transportation; S3: The separated oil-water mixture flows into the centrifugal separator (32), and the oil-water separation is achieved through the centrifugal separator (32). The water with a high specific gravity flows into the water chamber (28) through the heavy phase output end of the centrifugal separator (32), and then flows from the water chamber (28) into the second pipe seat connection assembly (60), and finally flows from the second pipe seat connection assembly (60) into the water body flow channel (44) in the pipe body (41), so that the water is transported alone, and the oil with a low specific gravity is separated from the centrifugal separator. The light phase output end of the machine (32) flows into the oil chamber (27), then flows from the oil chamber (27) into the second pipe seat connection assembly (60), and finally flows from the second pipe seat connection assembly (60) into the oil body flow channel (43) in the pipe body (41), thereby realizing separate oil transportation. At this point, the three phases of gas, oil and water are initially separated through the oil-gas-water separation mechanism (30), and are respectively transported through the gas flow channel (42), the oil flow channel (43) and the water flow channel (44).

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