A combined wellhead device for a quantitative water-injected gathering and transportation process

Abstract

The present invention relates to a wellhead device, and particularly to a combined wellhead device for quantitative water injection in gathering and transportation processes. The present invention provides a combined wellhead device for quantitative water injection in gathering and transportation processes that seals the wellhead to prevent impurities from falling into the wellhead and uniformly performs water injection operations at different positions. The present invention provides such a combined wellhead device for quantitative water injection in gathering and transportation processes, which includes a first fixing plate, a loading frame, a water pipe, a first baffle, etc. A loading frame for loading liquid is connected to the upper side of the first fixing plate. The left and right sides of the inner side of the loading frame are symmetrically communicated with water pipes, and a first baffle is slidably arranged inside the water pipes. When the wellhead is not in use, the connecting plate is used to prevent impurities from falling into the wellhead. The two water pipes are symmetrically arranged to uniformly perform water injection at different positions, and the loading frame is filled with liquid to ensure that the amount of water injection each time is the same.

Description

Technical Field

[0001] The present invention relates to a wellhead device, and particularly to a combined wellhead device for quantitative water injection in gathering and transportation process. Background Art

[0002] Crude oil is a viscous oily liquid with a special smell distributed in shallow and medium-deep underground layers. It also refers to untreated petroleum. During the process of crude oil extraction, it is necessary to detect the position and depth of crude oil in advance, then perform operations such as well drilling and pipeline installation on the ground, and finally transmit the crude oil through pipelines by means of devices. Due to the high viscosity of crude oil, the resistance of pipeline transmission is relatively large. Therefore, water needs to be added to the pipeline or crude oil to reduce the viscosity of crude oil. Also, because the smell of crude oil is rather unpleasant, the traditional method of manual water addition is not very convenient. At the same time, when manually adding water to the inner wall of the pipeline, potential safety hazards are likely to occur.

[0003] According to a self-controlled multi-functional oil well water injection device with the patent authorization publication number CN213087965U and the publication date of April 30, 2021, which includes a main body. A water injection pipe is arranged on the left side of the main body. A dashboard is fixedly connected to the outer surface of the water injection pipe. A first bolt is fixedly connected to the outer surface on the right side of the water injection pipe. A water injection valve is sleeved on the outer surface of the water injection pipe. An outlet pipe is arranged on the right side of the main body. A second bolt is arranged on the upper outer surface of the water mixing valve. A vent valve is fixedly connected to the outer surface on the right side of the second bolt. This self-controlled multi-functional oil well water injection device injects water into the water mixing valve through the water injection pipe, and then performs water injection on the oil well through the water outlet. Although this method completes the water injection operation, when the wellhead is not in use, the wellhead cannot be closed, impurities are likely to fall into the well, and there is only one water outlet, so it is impossible to evenly perform water injection operations at different positions.

[0004] Based on the above-mentioned disadvantages existing in the prior art, a combined wellhead device for quantitative water injection in gathering and transportation process is specially designed to overcome the disadvantages of the prior art, which can close the wellhead, prevent impurities from falling into the wellhead, and evenly perform water injection operations at different positions. Summary of the Invention

[0005] In order to overcome the above-mentioned disadvantages of the prior art that when the wellhead is not in use, the wellhead cannot be closed, impurities are likely to fall into the well, and there is only one water outlet, so it is impossible to evenly perform water injection operations at different positions, the technical problem to be solved by the present invention is to provide a combined wellhead device for quantitative water injection in gathering and transportation process that can close the wellhead, prevent impurities from falling into the wellhead, and evenly perform water injection operations at different positions.

[0006] In order to solve the above technical problems, the present invention provides such a quantitative water-injected gathering and transportation process combined wellhead device, which includes a first fixing plate, a loading frame, a water pipe and a first baffle. A loading frame for loading liquid is connected to the upper side of the first fixing plate. Water pipes are symmetrically communicated with each other on the left and right sides inside the loading frame. A first baffle is slidably arranged at the front of the water pipe, and the first baffle is slidably and sealingly matched with the water pipe. It further includes a covering mechanism and a covering-open mechanism. A covering mechanism for covering the wellhead is arranged on the first fixing plate, and a covering-open mechanism for automatically opening the first baffle is arranged on the water pipe.

[0007] Preferably, the covering mechanism includes a connecting plate and a handrail. A connecting plate located below the water pipe is slidably arranged in the middle of the front side of the first fixing plate. The connecting plate is slidably and sealingly matched with the first fixing plate, and a handrail for grasping is connected to the front side of the connecting plate.

[0008] Preferably, the covering-open mechanism includes a fixing rod, a rubber rod and a spring. Square grooves are symmetrically opened on the left and right sides of the upper side of the connecting plate. A fixing rod for guiding is connected to the upper side of the water pipe. A rubber rod connected to the first baffle on the same side is slidably sleeved on the fixing rod. The rubber rod contacts the adjacent square groove. A spring is connected between the rubber rod and the fixing rod, and the spring is sleeved on the outside of the fixing rod.

[0009] Preferably, it further includes a guiding mechanism for guiding the liquid. The guiding mechanism includes a first connecting block, a first guide plate and an inclined plate. First connecting blocks are symmetrically arranged at the front and rear of the inside of the loading frame and the inside of the first fixing plate. A first guide plate for guiding is connected between the lower sides of the two symmetrical first connecting blocks. The upper first guide plate is located between the water pipe and the connecting plate. An inclined plate for guiding is connected to the lower side of the lower first guide plate, and the outside of the inclined plate is inclined downward.

[0010] Preferably, it further includes a collecting mechanism for collecting the liquid. The collecting mechanism includes a second guide plate, a scraper and a filter plate. A second guide plate for guiding is connected to the upper side of the loading frame. The second guide plate is annular. An arc-shaped groove is opened on the upper part of the second guide plate. A filter plate for filtering is connected to the lower side of the second guide plate. A scraper contacting the filter plate is slidably arranged on the loading frame. The left part of the scraper is convex strip-shaped. The left part of the scraper passes through the arc-shaped groove of the second guide plate and is slidably connected thereto. A pull ring is arranged on the left part of the scraper.

[0011] Preferably, it further includes a rotating mechanism for stirring the oil liquid. The rotating mechanism includes a second connecting block, an annular rack, a third guide plate, a spur gear, a telescopic rod, and a stirring plate frame. Second connecting blocks are symmetrically arranged on the lower sides of the left and right of the inclined plate. Telescopic rods for transmitting power are rotatably arranged on the lower sides of the opposite ends of the two second connecting blocks. Stirring plate frames for stirring are connected to the telescopic parts of the telescopic rods. A spur gear is sleeved on the upper part outside the telescopic rod. A third guide plate is rotatably connected between the lower parts of the two second connecting blocks. The third guide plate is annular. The spur gear is located inside the third guide plate. An annular rack meshing with the spur gear is connected to the inside of the third guide plate.

[0012] Preferably, it further includes a power mechanism for assisting the rotating mechanism. The power mechanism includes a cover plate, a servo motor, a rubber wheel, and a rubber belt. An annular groove is formed on the outer ring surface of the third guide plate. A rubber belt is sleeved in the annular groove of the third guide plate. A servo motor for power output is installed at the rear side of the bottom of the inclined plate. A cover plate for protecting the servo motor is connected to the rear side of the bottom of the inclined plate. The servo motor is located inside the cover plate. The output shaft of the servo motor passes through the bottom of the cover plate. The output shaft of the servo motor is in sliding and sealing fit with the cover plate. A rubber wheel contacting the rubber belt is connected to the output shaft of the servo motor.

[0013] Preferably, it further includes a water outlet mechanism for transmitting water liquid. The water outlet mechanism includes a wire winding wheel, a conduit, a second fixing plate, and a second baffle. Two symmetrically arranged wire winding wheels are rotatably arranged on the lower side of the rear part of the loading frame. A conduit wound around the outside of the wire winding wheel is communicated between the loading frame and the telescopic rod. The lower end of the conduit is located inside the telescopic rod. A second fixing plate penetrating the telescopic rod is connected to the lower side of the second connecting block. A second baffle contacting the second fixing plate is connected to the inside of the telescopic rod.

[0014] Preferably, an oil drainage layer is sleeved outside the cover plate.

[0015] On the basis of overcoming the shortcomings of the prior art, the beneficial effects achieved by the present invention are as follows:

[0016] 1. When the wellhead is not needed, impurities are prevented from falling into the wellhead through the connecting plate. The two water pipes are symmetrically arranged to uniformly add water to different positions, filling the loading frame with water liquid, so that the amount of water added each time is the same.

[0017] 2. Pour the water liquid onto the filter plate. The filter plate filters some impurities in the water liquid, thus preventing the phenomenon of water pipe blockage and also preventing the crude oil in the well from being polluted.

[0018] 3. A small amount of water liquid is directly added into the crude oil near the pipeline through the conduit and the telescopic rod, thereby reducing the viscosity of the crude oil and reducing the resistance of the pipeline for transporting crude oil.

[0019] 4. The operator starts the servo motor, and through the servo motor, the stirring plate frame stirs the water-mixed crude oil, so that the water and the crude oil are more mixed, and further reduces the viscosity of the crude oil. Brief Description of the Drawings

[0020] Figure 1 It is the first three-dimensional structure schematic diagram of the present invention.

[0021] Figure 2 It is the second three-dimensional structure schematic diagram of the present invention.

[0022] Figure 3 It is the three-dimensional structure schematic diagram of the covering mechanism of the present invention.

[0023] Figure 4 It is the three-dimensional structure schematic diagram of the covering mechanism of the present invention.

[0024] Figure 5 It is the three-dimensional structure schematic diagram of the guiding mechanism of the present invention.

[0025] Figure 6 It is the three-dimensional structure schematic diagram of the collection mechanism of the present invention.

[0026] Figure 7 It is the three-dimensional structure schematic diagram of the rotating mechanism of the present invention.

[0027] Figure 8 It is the three-dimensional structure schematic diagram of the power mechanism of the present invention.

[0028] Figure 9 It is the three-dimensional structure schematic diagram of the water outlet mechanism of the present invention.

[0029] Figure 10 It is a partial cross-sectional view of the rotating mechanism of the present invention.

[0030] The reference signs in the drawings are: 1 - the first fixing plate, 2 - the loading frame, 3 - the water pipe, 4 - the first baffle, 5 - the covering mechanism, 51 - the connecting plate, 52 - the handrail, 6 - the covering mechanism, 61 - the fixing rod, 62 - the rubber rod, 63 - the spring, 7 - the guiding mechanism, 71 - the first connecting block, 72 - the first guide plate, 73 - the inclined plate, 8 - the collection mechanism, 81 - the second guide plate, 82 - the scraper, 83 - the filter plate, 9 - the rotating mechanism, 91 - the second connecting block, 92 - the annular rack, 921 - the third guide plate, 93 - the spur gear, 94 - the telescopic rod, 95 - the stirring plate frame, 10 - the power mechanism, 101 - the cover plate, 102 - the servo motor, 103 - the rubber wheel, 104 - the rubber belt, 11 - the water outlet mechanism, 111 - the winding wheel, 112 - the conduit, 113 - the second fixing plate, 114 - the second baffle. Detailed Embodiment

[0031] The present invention will be further described below in conjunction with the drawings and embodiments.

[0032] Example 1

[0033] A quantitative water mixing and gathering technology combined wellhead device, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a first fixed plate 1, a loading frame 2, a water pipe 3, a first baffle plate 4, a covering mechanism 5 and a covering mechanism 6. The loading frame 2 is bolted to the upper side of the first fixed plate 1, and the inner side of the loading frame 2 is symmetrically connected to the water pipe 3. The front part of the water pipe 3 is slidably provided with a first baffle plate 4, and the first baffle plate 4 and the water pipe 3 are slidably sealed. The covering mechanism 5 is arranged on the first fixed plate 1, and the covering mechanism 6 is arranged on the water pipe 3.

[0034] like Figure 3 As shown, the covering mechanism 5 includes a connecting plate 51 and an armrest 52. The connecting plate 51 is slidably provided in the middle of the front side of the first fixed plate 1. The connecting plate 51 is slidably sealed with the first fixed plate 1. The connecting plate 51 is located below the water pipe 3, and an armrest 52 is welded to the front side of the connecting plate 51.

[0035] like Figure 4 As shown, the covering mechanism 6 includes a fixing rod 61, a rubber rod 62 and a spring 63. A square groove is symmetrically opened on the upper side of the connecting plate 51. A fixing rod 61 is welded on the upper side of the water pipe 3. A rubber rod 62 is slidably sleeved on the fixing rod 61. The rubber rod 62 is connected to the first baffle 4 on the same side. The rubber rod 62 contacts the adjacent square groove. A spring 63 is connected between the rubber rod 62 and the fixing rod 61. The spring 63 is sleeved on the outside of the fixing rod 61.

[0036] First, the operator installs the device on the wellhead. Initially, the connecting plate 51 is in a closed state. When the wellhead is not in use, the connecting plate 51 prevents impurities from falling into the wellhead. Subsequently, the operator fills the water liquid to the loading frame 2 and drives the connecting plate 51 to move forward and open through the handrail 52. When the connecting plate 51 moves forward, it will drive the rubber rod 62 to move forward through the square groove, and the spring 63 is gradually compressed. When the rubber rod 62 moves forward, it will drive the first baffle 4 to move forward and gradually separate from the water pipe 3. At this time, the water liquid in the loading frame 2 will drain along the water pipe 3 to the inner wall of the pipeline below the wellhead, thereby achieving the operation of water admixture. When the spring 63 is compressed to the limit, if the connecting plate 51 continues to move forward, it will squeeze the rubber rod 62 to deform, and the rubber rod 62 will then disengage from the square groove. The operator moves the connecting plate 51 forward to disengage from the first fixing plate 1 and releases the rubber rod 62. The spring 63 resets, and the rubber rod 62 rubs against the fixed rod 61 under the action of the reset of the spring 63 and slowly drives the first baffle 4 to move backward and reset. When the first baffle 4 moves backward, it will block the water pipe 3 again, thereby completing the operation of water admixture. Subsequently, the operator inserts the connecting plate 51 back onto the first fixing plate 1 and then drives the connecting plate 51 to move backward through the handrail 52. The connecting plate 51 will squeeze the rubber rod 62 to deform again. When the rubber rod 62 is stuck into the square groove, the rubber rod 62 resets, thereby resetting and closing the connecting plate 51. After the wellhead is used up, the operator disassembles the device from the wellhead.

[0037] Embodiment 2

[0038] On the basis of Embodiment 1, as Figure 1 and Figure 5 shown, it further includes a guiding mechanism 7. The guiding mechanism 7 includes a first connecting block 71, a first guide plate 72, and an inclined plate 73. The inner sides of the loading frame 2 and the first fixing plate 1 are both symmetrically provided with first connecting blocks 71 in the front and rear. A first guide plate 72 is welded between the lower sides of the two symmetric first connecting blocks 71. The upper first guide plate 72 is located between the water pipe 3 and the connecting plate 51. The lower side of the lower first guide plate 72 is bolted with an inclined plate 73, and the outside of the inclined plate 73 is inclined downward.

[0039] When the connecting plate 51 is opened, the water liquid in the loading frame 2 will drain along the water pipe 3 to the upper first guide plate 72. The water liquid on the upper first guide plate 72 will flow down to the lower first guide plate 72, and the water liquid on the lower first guide plate 72 will then flow down to the inclined plate 73. Since the outside of the inclined plate 73 is inclined downward, the water on the inclined plate 73 accurately flows into the inner wall of the pipeline, performing the operation of water admixture on the inner wall of the pipeline.

[0040] Embodiment 3

[0041] On the basis of Embodiment 2, as Figure 1 and Figure 6As shown in the figure, it further includes a collection mechanism 8. The collection mechanism 8 includes a second guide plate 81, a scraper 82, and a filter plate 83. The second guide plate 81 is welded to the upper side of the loading frame 2. The second guide plate 81 is annular. An arc-shaped groove is provided in the upper part of the second guide plate 81. The filter plate 83 is bolted to the lower side of the second guide plate 81. A scraper 82 is slidably provided on the loading frame 2. The scraper 82 is in contact with the filter plate 83. The left part of the scraper 82 is in a convex strip shape. The left part of the scraper 82 passes through the arc-shaped groove of the second guide plate 81 and is slidably connected thereto. A pull ring is provided on the left part of the scraper 82.

[0042] The operator pours the water liquid onto the filter plate 83. The filter plate 83 filters some impurities in the water liquid. The operator rotates the scraper 82 to scrape the impurities on the filter plate 83 together, so as to conveniently collect and process the impurities.

[0043] Embodiment 4

[0044] On the basis of Embodiment 3, as Figure 1 、 Figure 8 and Figure 9 shown in the figure, it further includes a rotating mechanism 9. The rotating mechanism 9 includes a second connecting block 91, an annular rack 92, a third guide plate 921, a spur gear 93, a telescopic rod 94, and a stirring plate frame 95. Second connecting blocks 91 are symmetrically welded to the lower side of the inclined plate 73 on the left and right. The lower ends of the two second connecting blocks 91 facing each other are rotatably provided with telescopic rods 94. The telescopic parts of the telescopic rods 94 are connected with two stirring plate frames 95. A spur gear 93 is sleeved on the upper part of the outer side of the telescopic rod 94. A third guide plate 921 is rotatably connected between the lower parts of the two second connecting blocks 91. The third guide plate 921 is annular. The spur gear 93 is located inside the third guide plate 921. An annular rack 92 is connected to the inside of the third guide plate 921. The annular rack 92 meshes with the spur gear 93.

[0045] As Figure 2 、 Figure 7 and Figure 8 shown in the figure, it further includes a power mechanism 10. The power mechanism 10 includes a cover plate 101, a servo motor 102, a rubber wheel 103, and a rubber belt 104. An annular groove is provided on the outer ring surface of the third guide plate 921. A rubber belt 104 is sleeved in the annular groove of the third guide plate 921. A servo motor 102 is installed at the rear side of the bottom of the inclined plate 73 by means of screw connection. A cover plate 101 is welded to the rear side of the bottom of the inclined plate 73. The servo motor 102 is located inside the cover plate 101. The output shaft of the servo motor 102 passes through the bottom of the cover plate 101. The output shaft of the servo motor 102 is in sliding and sealing cooperation with the cover plate 101. An oil-repellent layer is sleeved on the outside of the cover plate 101 to prevent crude oil from sticking to the motor. A rubber wheel 103 is connected to the output shaft of the servo motor 102. The rubber wheel 103 is in contact with the rubber belt 104.

[0046] AsFigure 2 , Figure 8 , Figure 9 and Figure 10 As shown in Figure 2 , Figure 8 , Figure 9 and Figure 10 , it further includes a water outlet mechanism 11. The water outlet mechanism 11 includes a wire winding wheel 111, a conduit 112, a second fixing plate 113 and a second baffle 114. Two symmetrically arranged wire winding wheels 111 are rotatably provided at the lower side of the rear part of the loading frame 2. A conduit 112 wound around the outer side of the wire winding wheel 111 is communicated between the loading frame 2 and the telescopic rod 94. The lower end of the conduit 112 is located inside the telescopic rod 94. A second fixing plate 113 penetrating through the telescopic rod 94 is connected to the lower side of the second connecting block 91. A second baffle 114 is bolted inside the telescopic rod 94. The second baffle 114 contacts the second fixing plate 113.

[0047] Before installing the device, the operator moves the stirring plate frame 95 downward until the stirring plate frame 95 contacts the crude oil in the well. The downward movement of the stirring plate frame 95 will drive the telescopic rod 94 to extend, and the telescopic rod 94 drives the second baffle 114 to move downward away from the second fixing plate 113. After the device is installed, when water injection operation needs to be carried out on the wellhead, the operator adds the water liquid into the loading frame 2. The water liquid in the loading frame 2 will flow into the telescopic rod 94 through the conduit 112. The water liquid in the telescopic rod 94 then flows into the crude oil, mixing the water and the crude oil, thereby reducing the viscosity of the crude oil near the pipeline. Subsequently, the operator starts the servo motor 102. The output shaft of the servo motor 102 drives the rubber wheel 103 to rotate forward and backward alternately. The rubber wheel 103 rubs against the rubber belt 104. The rubber belt 104 is stressed to drive the third guide plate 921 to rotate forward and backward alternately. The third guide plate 921 drives the annular rack 92 to rotate and engage with the spur gear 93. The spur gear 93 drives the stirring plate frame 95 to rotate forward and backward alternately through the telescopic rod 94. Thus, while the telescopic rod 94 drains water, the stirring plate frame 95 stirs the crude oil, further mixing the water liquid and the crude oil. Subsequently, the operator turns off the servo motor 102 to complete the water injection and stirring operation. After the device is disassembled, the operator drives the stirring plate frame 95 to move upward to reset. The stirring plate frame 95 drives the telescopic rod 94 to contract, and the telescopic rod 94 drives the second baffle 114 to move upward to contact the second fixing plate 113 again, thus completing the stirring and mixing operation.

[0048] The above embodiments only represent the preferred implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, improvements and substitutions can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A combined wellhead device for a quantitative water-injected gathering and transportation process, comprising a first fixing plate (1), a loading frame (2), a water pipe (3) and a first baffle plate (4). A loading frame (2) for loading water liquid is connected to the upper side of the first fixing plate (1). Water pipes (3) are symmetrically and communicatively arranged on the left and right inside the loading frame (2). A first baffle plate (4) is slidably arranged at the front of the water pipe (3), and the first baffle plate (4) is in sliding and sealing fit with the water pipe (3). It is characterized in that, It further includes a covering mechanism (5) and a covering-up mechanism (6). A covering mechanism (5) for covering the wellhead is provided on the first fixed plate (1), and a covering-up mechanism (6) for automatically opening the first baffle (4) is provided on the water pipe (3); It further includes a rotating mechanism (9) for stirring the oil liquid. The rotating mechanism (9) includes a second connecting block (91), an annular rack (92), a third guide plate (921), a spur gear (93), a telescopic rod (94), and a stirring plate frame (95). Second connecting blocks (91) are symmetrically arranged on the left and right sides of the lower side of the inclined plate (73). Telescopic rods (94) for transmitting power are rotatably provided at the lower sides of the opposite ends of the two second connecting blocks (91). Stirring plate frames (95) for stirring are connected to the telescopic parts of the telescopic rods (94). A spur gear (93) is sleeved on the upper part of the outer side of the telescopic rod (94). A third guide plate (921) is rotatably connected between the lower parts of the two second connecting blocks (91). The third guide plate (921) is annular. The spur gear (93) is located inside the third guide plate (921). An annular rack (92) meshing with the spur gear (93) is connected to the inside of the third guide plate (921); It further includes a power mechanism (10) for assisting the rotating mechanism (9). The power mechanism (10) includes a cover plate (101), a servo motor (102), a rubber wheel (103), and a rubber belt (104). An annular groove is formed on the outer ring surface of the third guide plate (921). A rubber belt (104) is sleeved in the annular groove of the third guide plate (921). A servo motor (102) for power output is installed at the rear side of the bottom of the inclined plate (73). A cover plate (101) for protecting the servo motor (102) is connected to the rear side of the bottom of the inclined plate (73). The servo motor (102) is located inside the cover plate (101). The output shaft of the servo motor (102) passes through the bottom of the cover plate (101). The output shaft of the servo motor (102) is in sliding and sealing cooperation with the cover plate (101). A rubber wheel (103) in contact with the rubber belt (104) is connected to the output shaft of the servo motor (102); It further includes a water outlet mechanism (11) for transmitting water liquid. The water outlet mechanism (11) includes a wire winding wheel (111), a conduit (112), a second fixed plate (113), and a second baffle (114). Two symmetrically arranged wire winding wheels (111) are rotatably provided at the lower rear part of the loading frame (2). A conduit (112) wound around the outer side of the wire winding wheel (111) is communicated between the loading frame (2) and the telescopic rod (94). The lower end of the conduit (112) is located inside the telescopic rod (94). A second fixed plate (113) penetrating through the telescopic rod (94) is connected to the lower side of the second connecting block (91). A second baffle (114) in contact with the second fixed plate (113) is connected to the inside of the telescopic rod (94).

2. The combined wellhead device for a quantitative water-injected gathering and transportation process according to claim 1, characterized in that, The covering mechanism (5) includes a connecting plate (51) and an armrest (52). A connecting plate (51) located below the water pipe (3) is slidably arranged in the middle of the front side of the first fixed plate (1). The connecting plate (51) is in sliding and sealing cooperation with the first fixed plate (1). An armrest (52) for grasping is connected to the front side of the connecting plate (51).

3. The combination wellhead device for a quantitative water-injected gathering and transportation process according to claim 2, characterized in that The covering mechanism (6) includes a fixed rod (61), a rubber rod (62) and a spring (63). Square grooves are symmetrically formed on the left and right sides of the upper side of the connecting plate (51). A fixed rod (61) for guiding is connected to the upper side of the water pipe (3). A rubber rod (62) connected to the same-side first baffle (4) is slidably sleeved on the fixed rod (61). The rubber rod (62) contacts the adjacent square groove. A spring (63) is connected between the rubber rod (62) and the fixed rod (61). The spring (63) is sleeved on the outside of the fixed rod (61).

4. A quantitative water-injected gathering and transportation process combined wellhead device according to claim 3, characterized in that, It further includes a guiding mechanism (7) for guiding the water liquid. The guiding mechanism (7) includes a first connecting block (71), a first guide plate (72) and an inclined plate (73). First connecting blocks (71) are symmetrically arranged before and after on the inner side of the loading frame (2) and the inner side of the first fixed plate (1). A first guide plate (72) for guiding is connected between the lower sides of the two symmetric first connecting blocks (71). The upper first guide plate (72) is located between the water pipe (3) and the connecting plate (51). An inclined plate (73) for guiding is connected to the lower side of the lower first guide plate (72). The outside of the inclined plate (73) is inclined downward.

5. A quantitative water-injected gathering and transportation process combined wellhead device according to claim 4, characterized in that, It further includes a collecting mechanism (8) for collecting the water liquid. The collecting mechanism (8) includes a second guide plate (81), a scraping plate (82) and a filter plate (83). A second guide plate (81) for guiding is connected to the upper side of the loading frame (2). The second guide plate (81) is annular. An arc-shaped groove is formed in the upper part of the second guide plate (81). A filter plate (83) for filtering is connected to the lower side of the second guide plate (81). A scraping plate (82) contacting the filter plate (83) is slidably arranged on the loading frame (2). The left part of the scraping plate (82) is convex strip-shaped. The left part of the scraping plate (82) passes through the arc-shaped groove of the second guide plate (81) and is slidably connected thereto. A pull ring is arranged on the left part of the scraping plate (82).

6. The combination wellhead device for a quantitative water-injected gathering and transportation process according to claim 1, characterized in that An oil-repellent layer is sleeved outside the cover plate (101).

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