Jet pressurization mixed transportation device

Abstract

The utility model discloses an injection pressurization mixed transportation device which is used for the field of oil and gas equipment. The device comprises a jet booster pump, a high-pressure plunger pump, a buffer tank, a gas-liquid mixed conveying pipe and a filtering assembly, one end of the jet booster pump is connected with the high-pressure plunger pump and a natural gas wellhead, and the other end of the jet booster pump is connected with the buffer tank; the bottom of the buffer tank is connected with the high-pressure plunger pump through the filtering assembly, and the top of the buffer tank is connected with the gas-liquid mixed conveying pipe. The pressure difference between the natural gas wellhead and the negative pressure area formed by injecting sewage into the jet booster pump through the high-pressure plunger pump is utilized, natural gas is led out of the wellhead and pressurized, and the energy recovery rate is increased. Effective separation of oil gas and sewage is realized by arranging the buffer tank. The filter assembly arranged at the bottom of the buffer tank is used for removing impurities in sewage flowing back to the high-pressure plunger pump, the pump body is prevented from being blocked or abraded, and the production cost is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of oil and gas equipment, and particularly to an injection boosting and mixed transportation device. Background Art

[0002] In the global energy structure, natural gas, as a clean and efficient energy source, its exploitation and utilization are of great significance for promoting energy transformation and environmental protection. However, during the exploitation of natural gas wells, as the exploitation time goes by, the wellhead pressure gradually decreases, resulting in a significant drop in natural gas production. When the wellhead pressure drops to equal or less than the export pressure, the natural gas well can no longer be exploited. In order to better exploit these low-yield and inefficient wells, the mode of wellhead boosting + heating + separator separation + export is adopted, but the startup cost of this mode is relatively high.

[0003] To reduce costs, the prior art adopts the process of mixing and transporting natural gas from low-pressure wellheads to directly transport all wellhead products to the downstream treatment station for centralized treatment, which can greatly simplify the process and save the one-time investment and operating costs.

[0004] However, in the technology with a hydraulic compressor as the core in the process of mixing and transporting natural gas from low-pressure wellheads, when facing a single low-pressure mixed transportation well, the output is often low and the production cost is relatively high. Utility Model Content

[0005] To solve the above technical problems, this application provides an injection boosting and mixed transportation device, which includes: an injection boosting pump, a high-pressure plunger pump, a buffer tank, a gas-liquid mixed transportation pipe, and a filtering component;

[0006] One end of the injection boosting pump is respectively connected to the high-pressure plunger pump and the natural gas wellhead;

[0007] The other end of the injection boosting pump is connected to the buffer tank;

[0008] The bottom of the buffer tank is connected to the high-pressure plunger pump through the filtering component;

[0009] The top of the buffer tank is connected to the gas-liquid mixed transportation pipe;

[0010] The high-pressure plunger pump is used to introduce sewage into the injection boosting pump to form a negative pressure area inside the injection boosting pump, and introduce the natural gas from the natural gas wellhead into the injection boosting pump through the negative pressure area. The injection boosting pump is used to boost the natural gas and then transport it to the buffer tank. The buffer tank is used to achieve gas-liquid separation and transport the boosted natural gas out through the gas-liquid mixed transportation pipe.

[0011] Optionally, a high-pressure sewage inlet pipe, a jet nozzle, a jet booster pipe, a gas-liquid mixture output pipe, and a natural gas suction pipe are provided on the jet booster pump;

[0012] The high-pressure sewage inlet pipe is connected to the high-pressure plunger pump;

[0013] The high-pressure sewage inlet pipe is connected to the jet booster pipe through the jet nozzle;

[0014] The bottom of the jet booster pipe is connected to the natural gas suction pipe;

[0015] The natural gas suction pipe is connected to the natural gas wellhead;

[0016] The jet booster pipe is connected to the buffer tank through the gas-liquid mixture output pipe.

[0017] Optionally, the jet booster pipe is provided with a suction part, a throat part, and a diffuser part;

[0018] One end of the suction part is connected to the jet nozzle and the natural gas suction pipe;

[0019] The other end of the suction part is connected to the diffuser part through the throat part;

[0020] The diffuser part is connected to the gas-liquid mixture output pipe.

[0021] Optionally, the accommodation volume of the suction part is greater than that of the diffuser part, and the accommodation volume of the diffuser part is greater than that of the throat part.

[0022] Optionally, the gas-liquid mixture output pipe is provided with a gas-liquid mixture output port and a gas-liquid mixture input port;

[0023] The diffuser part is hermetically connected to the gas-liquid mixture input port;

[0024] The gas-liquid mixture output port is hermetically connected to the buffer tank.

[0025] Optionally, the filtration assembly includes a sewage circulation control valve, a sewage filter, and a sewage flowmeter;

[0026] The sewage filter is connected to the bottom of the buffer tank through a first sewage conduit;

[0027] The sewage circulation control valve is provided on the first sewage conduit;

[0028] The sewage filter is connected to the sewage flowmeter through a second sewage conduit;

[0029] The sewage flowmeter is connected to the high-pressure plunger pump through a third sewage conduit.

[0030] Optionally, the buffer tank is provided with a gas-liquid mixed liquid opening, and the gas-liquid mixed liquid opening is hermetically connected to the gas-liquid mixed transport pipe.

[0031] Optionally, a first ball valve, a second ball valve and a liquid level gauge are connected to the buffer tank;

[0032] A preset distance is provided between the first ball valve and the second ball valve;

[0033] The first ball valve is connected to the second ball valve through the liquid level gauge.

[0034] Optionally, the high-pressure plunger pump is provided with a sewage inlet and a high-pressure plunger pump outlet;

[0035] The high-pressure plunger pump outlet is hermetically connected to the high-pressure sewage inlet pipe;

[0036] The sewage inlet is hermetically connected to the third sewage conduit.

[0037] Optionally, the sewage filter is provided with a filter inlet, a filter outlet and a sewage discharge valve;

[0038] The filter inlet is hermetically connected to the first sewage conduit;

[0039] The filter outlet is hermetically connected to the second sewage conduit;

[0040] The sewage discharge valve is connected to the sewage filter through a sewage discharge conduit.

[0041] From the above technical solutions, it can be seen that the present application has the following advantages:

[0042] 1. In this solution, by utilizing the pressure difference between the natural gas wellhead and the negative pressure area formed by injecting sewage from the high-pressure plunger pump into the jet booster pump, natural gas is led out from the wellhead and pressurized. This process improves the energy recovery efficiency and reduces energy waste.

[0043] 2. The design of the buffer tank realizes the effective separation of oil-gas and sewage, and improves the stability of the output oil-gas mixture. At the same time, due to the buffering effect of the buffer tank, the buffer tank can stably output the flow rate of natural gas to meet the subsequent processing and transportation requirements.

[0044] 3. The filter assembly provided at the bottom of the buffer tank can remove impurities in the sewage flowing back to the high-pressure plunger pump, prevent the pump body from being blocked or worn, extend the service life of the equipment, enhance the stability of the jet booster mixing and transportation device, and reduce the production cost. Description of the Drawings

[0045] Figure 1Schematic structural diagram of an embodiment of the jet boosting mixed transportation device provided in this application;

[0046] Figure 2 Schematic structural diagram of a jet boosting pump of an embodiment of the jet boosting mixed transportation device provided in this application;

[0047] Figure 3 Schematic structural diagram of a jet boosting pipe of an embodiment of the jet boosting mixed transportation device provided in this application. Detailed implementation manners

[0048] To solve the above technical problems, this application provides a jet boosting mixed transportation device for solving the problems of low production and high production costs when facing low-pressure mixed transportation single wells.

[0049] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings, and is only used to illustrate the relative positional relationship between each component or constituent part, and does not particularly limit the specific installation orientation of each component or constituent part.

[0050] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0051] In addition, the terms "install", "set", "be provided with", "connect", "be connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or constituent parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In addition, the structures, ratios, sizes, etc. drawn in the drawings in this application are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions that this application can be implemented. Therefore, they do not have technical substantial significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0053] The following will clearly and completely describe the technical solutions in the present application in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0054] Please refer to Figures 1 to 3 , the present application provides an injection boosting and multiphase transportation device, and the injection boosting and multiphase transportation device includes:

[0055] An injection boosting pump 1, a high-pressure plunger pump 2, a buffer tank 3, a gas-liquid multiphase transportation pipe 4, and a filtration assembly 5;

[0056] One end of the injection boosting pump 1 is respectively connected to the high-pressure plunger pump 2 and the natural gas wellhead 7;

[0057] The other end of the injection boosting pump 1 is connected to the buffer tank 3;

[0058] The bottom of the buffer tank 3 is connected to the high-pressure plunger pump 2 through the filtration assembly 5;

[0059] The top of the buffer tank 3 is connected to the gas-liquid multiphase transportation pipe 4;

[0060] The high-pressure plunger pump 2 is used to introduce sewage into the injection boosting pump 1 to form a negative pressure area inside the injection boosting pump 1, and introduce the natural gas in the natural gas wellhead 7 into the injection boosting pump 1 through the negative pressure area. The injection boosting pump 1 is used to boost the natural gas and then transport it to the buffer tank 3. The buffer tank 3 is used to achieve gas-liquid separation and transport the boosted natural gas out through the gas-liquid multiphase transportation pipe 4.

[0061] The following will describe each component in this embodiment in detail:

[0062] Injection boosting pump 1: One end of the injection boosting pump 1 is respectively connected to the high-pressure plunger pump 2 and the natural gas wellhead 7, and the other end is connected to the buffer tank 3. The pipe diameter of the injection boosting pump 1 is 50 millimeters, and the pipe pressure inside the injection boosting pump 1 is 25 megapascals. The main function is to use the negative pressure area formed inside to introduce the natural gas in the natural gas wellhead 7 into the injection boosting pump 1, boost it, and finally transport the natural gas to the buffer tank 3 for gas-liquid separation.

[0063] High-pressure plunger pump 2: One end of the high-pressure plunger pump 2 is connected to the filtration assembly 5, and the other end is connected to the jet booster pump 1. The high-pressure plunger pump 2 is a 3S plunger pump, with an internal fluid volume flow rate of 4 cubic meters per hour, a pressure of 17 MPa, and a power of 22 kW. Its main function is to pressurize the filtered sewage and supply it as a driving force to the jet booster pump 1 to generate high-pressure sewage to drive the natural gas to move upward.

[0064] Buffer tank 3: One end of the buffer tank 3 is connected to the jet booster pump 1, and the other end is connected to the filtration assembly 5. The pipeline diameter of the buffer tank 3 is 800 mm, the volume is 2500 liters, and the nominal pressure inside is 6.3 MPa. Its main function is to receive the pressurized oil-gas-liquid mixture output by the jet booster pump 1, separate the oil-gas-liquid mixture, and then output it through the gas-liquid mixed transportation pipe 4.

[0065] Gas-liquid mixed transportation pipe 4: The gas-liquid mixed transportation pipe 4 is connected to the buffer tank 3. Its main function is to safely transport the oil-gas-water mixture separated in the buffer tank 3 to the centralized treatment station for treatment.

[0066] Filtration assembly 5: The filtration assembly 5 is connected to the buffer tank 3 and the high-pressure plunger pump 2. Its main function is to filter and purify the sewage in the buffer tank 3, ensure the quality of the recycled sewage, and prevent solid particles and other impurities from entering the high-pressure plunger pump 2.

[0067] In this embodiment, the sewage is used as a power source. After being pressurized by the high-pressure plunger pump 2, the high-pressure sewage is sprayed into the jet booster pump 1, creating a negative pressure area inside the jet booster pump 1 to attract the natural gas from the natural gas wellhead 7 into the jet booster pump 1. Subsequently, the jet booster pump 1 pressurizes the natural gas. The pressurized natural gas is mixed with part of the sewage to form an oil-gas-liquid mixture, which is then transported to the buffer tank 3 together. In the buffer tank 3, the oil-gas-liquid mixture is separated from the sewage by gravity sedimentation and its own pressure. In practical applications, the gas-liquid is transported out through the gas-liquid mixed transportation pipe 4 from the top of the buffer tank 3, while the sewage containing impurities sediments at the bottom of the buffer tank 3. The sewage at the bottom of the buffer tank 3 needs to be purified by the filtration assembly 5 to remove the solid particles and impurities. The purified sewage is sucked into the high-pressure plunger pump 2 again to form a cycle and continuously provide power for the jet booster pump 1.

[0068] In practical applications, this solution utilizes the pressure difference between the natural gas wellhead 7 and the negative pressure area formed by injecting sewage into the jet booster pump 1 by the high-pressure piston pump 2, thereby drawing out natural gas from the wellhead and boosting its pressure. This process improves the energy recovery efficiency and reduces energy waste. The design of the buffer tank 3 realizes the effective separation of oil, gas, water, and sewage, improving the stability of the output oil-gas mixture. At the same time, due to the buffering effect of the buffer tank 3, the buffer tank 3 can smoothly output the natural gas flow rate to meet the subsequent processing and transportation requirements. The filter component 5 provided at the bottom of the buffer tank 3 can remove impurities in the sewage flowing back to the high-pressure piston pump 2, prevent the pump body from being blocked or worn, extend the service life of the equipment, enhance the stability of the jet booster mixing and transportation device, and reduce production costs.

[0069] In an alternative embodiment, a high-pressure sewage inlet pipe 11, a jet nozzle 12, a jet booster pipe 15, a gas-liquid mixture output pipe 18, and a natural gas suction pipe 17 are provided on the jet booster pump 1;

[0070] The high-pressure sewage inlet pipe 11 is connected to the high-pressure piston pump 2;

[0071] The high-pressure sewage inlet pipe 11 is connected to the jet booster pipe 15 through the jet nozzle 12;

[0072] The bottom of the jet booster pipe 15 is connected to the natural gas suction pipe 17;

[0073] The natural gas suction pipe 17 is connected to the natural gas wellhead 7;

[0074] The jet booster pipe 15 is connected to the buffer tank 3 through the gas-liquid mixture output pipe 18.

[0075] In this embodiment, a specific implementation manner of the jet booster pump 1 is provided. The jet booster pump 1 includes a high-pressure sewage inlet pipe 11, a jet nozzle 12, a jet booster pipe 15, a gas-liquid mixture output pipe 18, and a natural gas suction pipe 17. After the high-pressure sewage comes out of the high-pressure piston pump 2, it first passes through the high-pressure sewage inlet pipe 11 and is introduced into the jet nozzle 12. At the outlet of the jet nozzle 12, a viscous effect is generated between the high-speed jet of sewage and the natural gas. This acting force entrains and carries away the natural gas near the outlet of the jet nozzle 12, thereby forming a low-pressure or even vacuum area near the jet nozzle 12. This low-pressure effect causes the natural gas in the low-pressure natural gas wellhead 7 to be sucked into the natural gas suction pipe 17 and enter the jet booster pipe 15 together with the high-speed jet of atomized sewage. In the jet booster pipe 15, due to the jet action of the sewage, the jet booster pipe 15 then boosts the mixed gas-liquid, and finally transports the boosted natural gas to the buffer tank 3.

[0076] In practical applications, through the viscous action of high-pressure sewage and natural gas at the outlet of the injection nozzle 12, the entrainment and extraction of natural gas in the low-pressure natural gas wellhead 7 are realized, improving the recovery efficiency of natural gas. The negative pressure area in the injection booster pipe 15 promotes the full mixing of gas and liquid, providing favorable conditions for subsequent pressurization treatment. The injection booster pipe 15 pressurizes the mixed gas-liquid, ensuring that natural gas can be smoothly transported to the buffer tank 3, not only improving the overall efficiency of the system, but also enhancing the utilization value of natural gas, providing certain technical support for the development and utilization of energy.

[0077] In an alternative embodiment, the injection booster pipe 15 is provided with a suction part 151, a throat part 152, and a diffuser part 153;

[0078] One end of the suction part 151 is connected to the injection nozzle 12 and the natural gas suction pipe 17;

[0079] The other end of the suction part 151 is connected to the diffuser part 153 through the throat part 152;

[0080] The diffuser part 153 is connected to the gas-liquid mixture output pipe 18.

[0081] In this embodiment, a specific implementation manner of the injection booster pipe 15 is provided. The injection booster pipe 15 is provided with a suction part 151, a throat part 152, and a diffuser part 153. Sewage is injected into the injection booster pipe 15 at a high speed through the injection nozzle 12, and viscous action occurs with natural gas at the outlet of the injection nozzle 12, forming a low-pressure area, thereby attracting natural gas from the low-pressure natural gas wellhead 7 to enter the suction part 151 through the natural gas suction pipe 17. The suction part 151 serves as the starting point for gas-liquid mixing, mixing the natural gas with the misty sewage and then introducing it into the throat part 152. In the throat part 152, momentum exchange occurs between the high-pressure sewage and the pumped natural gas. The sewage transfers part of its energy to the natural gas, causing the sewage velocity to slow down and the natural gas velocity to increase. The velocities of the two fluids tend to be the same at the contact point between the throat part 152 and the diffuser part 153, completing the preliminary mixing. Subsequently, the mixture enters the diffuser part 153, the flow velocity gradually decreases, the pressure rises, and finally it is discharged from the gas-liquid mixture output pipe 18.

[0082] In practical applications, through the viscous action between the high-speed sewage jet and natural gas, a low-pressure area is effectively formed, realizing the automatic suction of natural gas from the low-pressure wellhead into the suction part 151. The suction part 151 serves as the starting point of gas-liquid mixing, ensuring the full contact and mixing of natural gas and misty sewage. In the throat part 152, through momentum exchange, the high-pressure sewage transfers energy to the natural gas, increasing the flow velocity of the natural gas and realizing the efficient mixing of gas and liquid. The setting of the diffuser part 153 further stabilizes the flow velocity and pressure of the mixture, ensuring the stable discharge of the gas-liquid mixture from the output pipe and improving the stability of the injection booster pipe 15.

[0083] In an alternative embodiment, the accommodation volume of the inhalation part 151 is larger than that of the diffusion part 153, and the accommodation volume of the diffusion part 153 is larger than that of the throat part 152.

[0084] In this embodiment, the inhalation part 151 provides a relatively large accommodation volume, facilitating the high-speed injection of sewage and forming a low-pressure area to attract natural gas from the low-pressure wellhead into it. The throat part 152 has the smallest accommodation volume. Through the tapered structure, the fluid flow rate is accelerated, promoting the momentum exchange between the sewage and natural gas, so that the speeds of the two reach consistency at the contact point between the throat part 152 and the diffusion part 153, completing the preliminary mixing. The accommodation volume of the diffusion part 153 is smaller than that of the inhalation part 151 and larger than that of the throat part 152. The internal diffusion shape thereof slows down the flow rate of the gas-liquid mixture and increases the pressure, enabling the gas-liquid mixture to be discharged from the diffusion part 153 to the gas-liquid mixture output pipe 18.

[0085] In practical applications, the large volume of the inhalation part 151 helps to fully attract natural gas. The throat part 152 has the smallest accommodation volume, which promotes the high-speed mixing of gas and liquid through the tapered structure. The accommodation volume of the diffusion part 153 is smaller than that of the inhalation part 151 and larger than that of the throat part 152. The internal diffusion structure thereof ensures that the flow rate of the mixture is effectively slowed down and the pressure is increased before being discharged. The design of the entire injection booster pipe 15 not only improves the efficiency of natural gas extraction but also enhances the stability of the injection booster pipe 15, providing strong support for the subsequent transportation and treatment of the gas-liquid mixture.

[0086] In an alternative embodiment, the gas-liquid mixture output pipe 18 is provided with a gas-liquid mixture output port 16 and a gas-liquid mixture input port 19;

[0087] The diffusion part 153 is hermetically connected to the gas-liquid mixture input port 19;

[0088] The gas-liquid mixture output port 16 is hermetically connected to the buffer tank 3.

[0089] In this embodiment, a specific implementation manner of the gas-liquid mixture output pipe 18 is provided. The gas-liquid mixture output pipe 18 is provided with a gas-liquid mixture output port 16 and a gas-liquid mixture input port 19. During the transportation process, the uniformly mixed gas-liquid mixture flows out from the diffusion part 153 and enters the gas-liquid mixture output pipe 18 through the gas-liquid mixture input port 19. Then, the gas-liquid mixture flows along the gas-liquid mixture output pipe 18 until it reaches the gas-liquid mixture output port 16. Finally, the gas-liquid mixture enters the buffer tank 3 through the gas-liquid mixture output port 16.

[0090] In practical applications, the sealed gas-liquid mixture input port 19 ensures the continuity and stability of the flow of the gas-liquid mixture. Flowing along the gas-liquid mixture output pipe 18 to the gas-liquid mixture output port 16, the sealed gas-liquid mixture output port 16 enables the mixture to enter the buffer tank 3 without leakage and blockage, effectively improving the conveying efficiency. It provides convenience for subsequent gas-liquid mixture treatment and overall enhances the reliability and operating efficiency of the device.

[0091] In an optional embodiment, the filtration assembly 5 includes a sewage circulation control valve 51, a sewage filter 52, and a sewage flow meter 53;

[0092] The sewage filter 52 is connected to the bottom of the buffer tank 3 through a first sewage conduit 61;

[0093] The sewage circulation control valve 51 is provided on the first sewage conduit 61;

[0094] The sewage filter 52 is connected to the sewage flow meter 53 through a second sewage conduit 62;

[0095] The sewage flow meter 53 is connected to the high-pressure plunger pump 2 through a third sewage conduit 63.

[0096] In this embodiment, a specific implementation manner of the filtration assembly 5 is provided. The filtration assembly 5 includes a sewage circulation control valve 51, a sewage filter 52, and a sewage flow meter 53. After the sewage in the buffer tank 3 settles to the bottom by gravity, the sewage flows from the bottom of the buffer tank 3 to the sewage filter 52 through the first sewage conduit 61. The sewage circulation control valve 51 is provided on the first sewage conduit 61, and the sewage circulation control valve 51 controls the flow rate of the sewage entering the sewage filter 52 in the first sewage conduit 61. Then the sewage enters the sewage filter 52 at a certain flow rate, and subsequently the sewage filter 52 filters out the mechanical impurities in the sewage. Then the sewage filtered out of the mechanical impurities flows into the sewage flow meter 53 through the second sewage conduit 62. The metered sewage is re-transported into the high-pressure plunger pump 2 through the third sewage conduit 63.

[0097] In practical applications, the sewage accumulated at the bottom is led out through the first sewage conduit 61, and the sewage circulation control valve 51 is used to accurately regulate the flow rate to ensure the stability and controllability of the treatment process. The use of the sewage filter 52 can effectively remove the mechanical impurities in the sewage and improve the water quality. At the same time, the sewage flow meter 53 can accurately measure the filtered sewage. The metered sewage is re-transported to the high-pressure plunger pump 2, providing a stable sewage source for the subsequent pressurization of the sewage by the high-pressure plunger pump 2. The overall design of the sewage circulation control valve 51, the sewage filter 52, and the sewage flow meter 53 not only improves the efficiency of sewage treatment but also enhances the reliability and stability of the jet boosting and mixing and transportation device.

[0098] In an alternative embodiment, the buffer tank 3 is provided with a gas-liquid mixed liquid opening 41, and the gas-liquid mixed liquid opening 41 is sealingly connected to the gas-liquid mixed transport pipe 4.

[0099] In this embodiment, a specific implementation manner of the gas-liquid mixed liquid opening 41 is provided. After the gas-liquid mixture is discharged into the buffer tank 3, the oil-gas-water mixture in the buffer tank 3 enters the gas-liquid mixed transport pipe 4 through the gas-liquid mixed liquid opening 41 that is sealingly connected to the gas-liquid mixed transport pipe 4 by relying on its own pressure, and finally is transported by the gas-liquid mixed transport pipe 4 to the centralized treatment station for treatment.

[0100] In practical applications, the sealing connection design between the gas-liquid mixed liquid opening 41 and the gas-liquid mixed transport pipe 4 ensures that the oil-gas-water mixture can stably enter the gas-liquid mixed transport pipe 4 under high pressure, avoiding leakage and waste. Secondly, this design simplifies the operation process and reduces manual intervention. The sealing connection can not only prevent leakage and waste, but also prevent the entry of external impurities and air, ensuring the safety of the transport medium and providing guarantee for the centralized treatment station to carry out treatment.

[0101] In an alternative embodiment, a first ball valve 31, a second ball valve 33 and a liquid level gauge 32 are connected to the buffer tank 3;

[0102] A preset distance is provided between the first ball valve 31 and the second ball valve 33;

[0103] The first ball valve 31 is connected to the second ball valve 33 through the liquid level gauge 32.

[0104] In this embodiment, a first ball valve 31, a second ball valve 33 and a liquid level gauge 32 are connected to the buffer tank 3. The first ball valve 31 is installed in the upper half of the buffer tank 3, and the second ball valve 33 is located in the lower half of the buffer tank 3, and a certain preset distance is maintained between the two for the separator to detect the liquid level in the buffer tank 3. The liquid level gauge 32 located between the first ball valve 31 and the second ball valve 33 is used to display the liquid level in the separator in real time.

[0105] In practical applications, the setting of the liquid level gauge 32 facilitates the operator to intuitively understand the real-time state of the liquid in the buffer tank 3. At the same time, the introduction of the first ball valve 31 and the second ball valve 33 provides convenience for the maintenance of the liquid level gauge 32. When the liquid level gauge 32 fails and needs to be repaired, the two ball valves can be closed to isolate the liquid level gauge 32, thus ensuring the safety of the repair process.

[0106] In an alternative embodiment, the high-pressure plunger pump 2 is provided with a sewage inlet 21 and a high-pressure plunger pump outlet 22;

[0107] The high-pressure plunger pump outlet 22 is sealingly connected to the high-pressure sewage inlet pipe 11;

[0108] The sewage inlet 21 is hermetically connected to the third sewage conduit 63.

[0109] In this embodiment, a specific implementation manner of the high-pressure plunger pump 2 is provided. The high-pressure plunger pump 2 is provided with a sewage inlet 21 and a high-pressure plunger pump outlet 22. After the sewage is filtered, it enters the third sewage conduit 63, and then the sewage in the third sewage conduit 63 enters the interior of the high-pressure plunger pump 2 through the sewage inlet 21. In the cavity of the high-pressure plunger pump 2, the internal plunger reciprocates to compress the sewage, thereby generating high pressure. The sewage is gradually pressurized until it reaches the required working pressure, and then enters the high-pressure sewage inlet pipe 11 through the high-pressure plunger pump outlet 22, and the sewage enters the high-pressure sewage inlet pipe 11 for continuous transportation.

[0110] In practical applications, the sewage inlet 21 ensures that the filtered sewage can smoothly enter the interior of the high-pressure plunger pump 2. The high-pressure plunger pump outlet 22 enables the pressurized sewage to stably enter the high-pressure sewage inlet pipe 11 and then continue with subsequent transportation. This design improves the stability of the high-pressure plunger pump 2.

[0111] In an alternative embodiment, the sewage filter 52 is provided with a filter inlet 523, a filter outlet 524, and a sewage discharge valve 522;

[0112] The filter inlet 523 is hermetically connected to the first sewage conduit 61;

[0113] The filter outlet 524 is hermetically connected to the second sewage conduit 62;

[0114] The sewage discharge valve 522 is connected to the sewage filter 52 through a sewage discharge conduit 521.

[0115] In this embodiment, a specific implementation manner of the sewage filter 52 is provided. The sewage filter 52 is provided with a filter inlet 523, a filter outlet 524, and a sewage discharge valve 522. The sewage in the first sewage conduit 61 first enters the interior of the sewage filter 52 through the filter inlet 523. The mechanical impurities in the sewage inside the sewage filter 52 are removed. The filtered sewage is then transported to the second sewage conduit 62 through the filter outlet 524 for subsequent treatment or discharge. Meanwhile, the mechanical impurities accumulated inside the sewage filter 52 are led to the sewage discharge valve 522 through the sewage discharge conduit 521, and the staff can open the sewage discharge valve 522 at an appropriate time to discharge the mechanical impurities.

[0116] In practical applications, by setting the filter inlet 523 and the filter outlet 524, leakage of sewage during transportation is prevented. Moreover, the sewage filter 52 removes mechanical impurities from the sewage, preventing blockage or wear of the pump body during operation, creating favorable conditions for subsequent treatment or discharge. Secondly, by setting the sewage discharge valve 522 and the sewage discharge conduit 521, regular cleaning of mechanical impurities is achieved, avoiding blockage inside the sewage filter 52.

[0117] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A jet-boosted mixed transportation device, characterized in that, Comprising: A jet booster pump, a high-pressure plunger pump, a buffer tank, a gas-liquid mixed transportation pipe, and a filtering component; One end of the jet booster pump is respectively connected to the high-pressure plunger pump and the natural gas wellhead; The other end of the jet booster pump is connected to the buffer tank; The bottom of the buffer tank is connected to the high-pressure plunger pump through the filtering component; The top of the buffer tank is connected to the gas-liquid mixed transportation pipe; The high-pressure plunger pump is used to introduce sewage into the interior of the jet booster pump, so as to form a negative pressure area inside the jet booster pump. The natural gas in the natural gas wellhead is introduced into the jet booster pump through the negative pressure area. The jet booster pump is used to boost the pressure of the natural gas and then transport it to the buffer tank. The buffer tank is used to achieve gas-liquid separation and transport the boosted natural gas outward through the gas-liquid mixed transportation pipe.

2. The jet boosting and mixed transportation device according to claim 1, characterized in that, The jet booster pump is provided with a high-pressure sewage inlet pipe, a jet nozzle, a jet booster pipe, a gas-liquid mixture output pipe, and a natural gas suction pipe; The high-pressure sewage inlet pipe is connected to the high-pressure plunger pump; The high-pressure sewage inlet pipe is connected to the jet booster pipe through the jet nozzle; The bottom of the jet booster pipe is connected to the natural gas suction pipe; The natural gas suction pipe is connected to the natural gas wellhead; The jet booster pipe is connected to the buffer tank through the gas-liquid mixture output pipe; 3. The jet boosting and mixed transportation device according to claim 2, characterized in that, The jet booster pipe is provided with a suction part, a throat part, and a diffusion part; One end of the suction part is connected to the jet nozzle and the natural gas suction pipe; The other end of the suction part is connected to the diffusion part through the throat part; The diffusion part is connected to the gas-liquid mixture output pipe; 4. The jet boost mixed transportation device according to claim 3, characterized in that, The accommodation volume of the suction part is larger than that of the diffusion part, and the accommodation volume of the diffusion part is larger than that of the throat part; 5. The jet boosting and mixed transportation device according to claim 4, characterized in that, The gas-liquid mixture output pipe is provided with a gas-liquid mixture output port and a gas-liquid mixture input port; The diffusion part is hermetically connected to the gas-liquid mixture input port; The gas-liquid mixture output port is hermetically connected to the buffer tank; 6. The jet boosting and mixed transportation device according to claim 5, wherein, The filtering component includes a sewage circulation control valve, a sewage filter, and a sewage flowmeter; The sewage filter is connected to the bottom of the buffer tank through a first sewage conduit; The sewage circulation control valve is arranged on the first sewage conduit; The sewage filter is connected to the sewage flowmeter through a second sewage conduit; The sewage flowmeter is connected to the high-pressure plunger pump through a third sewage conduit; 7. The jet boost mixed transportation device according to claim 6, wherein, The buffer tank is provided with a gas-liquid mixed liquid opening, and the gas-liquid mixed liquid opening is hermetically connected to the gas-liquid mixed transportation pipe; 8. The jet boosting and mixed transportation device according to claim 7, wherein, A first ball valve, a second ball valve, and a liquid level gauge are connected to the buffer tank; A preset distance is set between the first ball valve and the second ball valve; The first ball valve is connected to the second ball valve through the liquid level gauge; 9. The jet supercharging and mixed transportation device according to claim 8, wherein, The high-pressure plunger pump is provided with a sewage inlet and a high-pressure plunger pump outlet; The high-pressure plunger pump outlet is hermetically connected to the high-pressure sewage inlet pipe; The sewage inlet is hermetically connected to the third sewage conduit; 10. The jet boosting and mixed transportation device according to claim 9, wherein The sewage filter is provided with a filter inlet, a filter outlet, and a sewage discharge valve; The filter inlet is hermetically connected to the first sewage conduit; The filter outlet is hermetically connected to the second sewage conduit; The sewage discharge valve is connected to the sewage filter through a sewage discharge conduit.

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