Water content analyzer with high gas-liquid ratio

Abstract

The invention relates to the technical field of oil exploitation, in particular to a high-gas-liquid-ratio water content analyzer which comprises a measuring pipe, the measuring pipe is arranged in the horizontal direction, and the measuring pipe is provided with an oil inlet end and an oil outlet end; the detection bin is arranged outside the measuring tube in a sleeving manner, the detection bin and the measuring tube are coaxially arranged, and the measuring tube is communicated with the detection bin; the emitter is arranged in the measuring tube and is used for emitting radio frequency microwaves; and the detector is arranged below the emitter and is used for receiving the radio frequency microwaves emitted by the emitter. The water content analysis device has the effect of performing water content analysis under the condition of high gas-liquid ratio.

Description

Technical Field

[0001] This application relates to the technical field of oil extraction, and in particular to a high gas-liquid ratio water content analyzer. Background Technology

[0002] In the oil extraction and processing sector, the demand for water content analysis in liquids is increasing. Accurate water content analysis results are crucial for monitoring production processes, controlling product quality, and selecting subsequent processing technologies. With continuous technological advancements, related detection technologies are constantly being improved and refined to adapt to different operating conditions and higher accuracy requirements. Accurate water content analysis provides reliable data support for oil production companies, helping to optimize production processes, reduce costs, and improve product quality, playing an indispensable role in the entire oil industry.

[0003] In the water content analysis process of related technologies, physical separation methods are often used to reduce the influence of air bubbles in the liquid on the analytical results. For example, a simple gravity sedimentation device is used to allow air bubbles to rise naturally and separate from the liquid by utilizing the density difference between gas and liquid; filtration devices such as filters are also used to try to intercept larger air bubbles in the oil. In addition, the removal of surface wax is usually done by mechanical scraping or chemical cleaning. Mechanical scraping directly removes the surface wax with a specific scraper, while chemical cleaning uses chemical reagents with the ability to dissolve wax to remove it.

[0004] However, these existing methods have significant drawbacks. Gravity sedimentation devices are inefficient at separating bubbles, struggling to quickly and effectively separate large numbers of bubbles, and are ineffective at separating smaller bubbles. Filter screens are prone to scaling and clogging, requiring frequent replacement or cleaning, which disrupts the continuity of analysis. Regarding the removal of surface wax, mechanical scraping may damage the equipment surface, while chemical cleaning is not only costly but may also introduce new impurities, affecting the liquid composition and thus interfering with the accuracy of water content analysis results. Furthermore, none of these methods effectively reduce the dissolved gas content in the liquid, leading to inaccurate water content analysis results. Summary of the Invention

[0005] In order to perform water content analysis under high gas-liquid ratio conditions, this application provides a high gas-liquid ratio water content analyzer.

[0006] This application provides a high gas-liquid ratio water content analyzer with the following technical solution: A high gas-liquid ratio water content analyzer includes a measuring tube, which is horizontally arranged and has an oil inlet and an oil outlet; a detection chamber, which is sleeved outside the measuring tube and coaxially arranged with the measuring tube, and the measuring tube is connected to the detection chamber; a transmitter, which is located inside the detection chamber and below the measuring tube for transmitting radio frequency microwaves; and a detector, which is located inside the detection chamber and below the transmitter for receiving the radio frequency microwaves emitted by the transmitter.

[0007] By adopting the above technical solution, the horizontally set measuring tube allows the liquid to flow smoothly. The detection chamber is fitted outside the measuring tube and connected to it, which facilitates the collection of oil, reduces the influence of the flowing air on the detection, and facilitates the detection of water content. The transmitter emits radio frequency microwaves, and the detector receives the radio frequency microwaves, which can realize the detection of water content in the liquid.

[0008] Optionally, the measuring tube is provided with a hydrocyclone at the bottom, and the measuring tube is connected to the detection chamber through the hydrocyclone. The detection chamber includes a sealing sleeve and two sealing flanges at both ends of the sealing sleeve. The sealing sleeve is fitted over the measuring tube, and the sealing flanges are located on both sides of the hydrocyclone. The detector and the transmitter are both connected to the sealing sleeve.

[0009] By adopting the above technical solution, a hydrocyclone is installed at the bottom of the measuring tube and connected to the detection chamber through the hydrocyclone. This allows the liquid to be treated by the hydrocyclone before entering the detection chamber, which helps to separate the gas in the liquid. The detection chamber adopts a structure of sealing sleeve and sealing flange, which can ensure the airtightness of the detection chamber and reduce the interference of external factors on the detection results. The detector and transmitter are connected to the sealing sleeve, which can stably install the detection and transmission devices in the detection chamber, ensuring the stability of transmitting and receiving radio frequency microwaves and improving the accuracy of water content analysis.

[0010] Optionally, the water content analyzer further includes a meter head and an oil drain port. The meter head is located at the top of the detection chamber and is simultaneously connected to the transmitter and the detector. The oil drain port is located at the bottom of the detection chamber for discharging the oil after the detection is completed.

[0011] By adopting the above technical solution, the meter head is located in the detection chamber and is connected to the transmitter and detector signal, which can realize the reception and processing of relevant signals, which is conducive to the analysis of measurement data. After the detection is completed, the oil can leave from the drain port.

[0012] Optionally, the hydrocyclone has an inlet for connecting to the measuring tube, an outlet for connecting to the detection chamber, and a liquid phase channel arranged vertically. The liquid phase channel includes a first vortex channel and a second vortex channel arranged coaxially in the vertical direction. Both the first vortex channel and the second vortex channel have inner walls that slope inward in the vertical direction. The minimum inner diameter of the first vortex channel is greater than the maximum inner diameter of the second vortex channel. The top of the hydrocyclone is provided with an outlet for discharging gas. The outlet is coaxially arranged with the first vortex channel and connected to the detection chamber above the measuring tube via an outlet pipe. The inlet is connected to the first vortex channel via an inlet channel. The inlet channel is tangent to the first vortex channel, and the inner diameter of the inlet channel decreases from the direction near the inlet to the direction near the first vortex channel. The outlet is connected to the second vortex channel via an outlet channel. The outlet channel is coaxially arranged with the second vortex channel, and the inner diameter of the outlet channel is greater than the maximum inner diameter of the second vortex channel.

[0013] By adopting the above technical solution, the liquid enters the first vortex channel from the inlet through the inlet channel. The inlet channel is tangent to the first vortex channel and their inner diameters decrease, allowing the liquid to quickly enter the first vortex channel and generate vortex flow. Both the first and second vortex channels have inner walls that slope inwards vertically, and the minimum inner diameter of the first vortex channel is greater than the maximum inner diameter of the second vortex channel. This secondary vortex structure enhances the vortex effect, allowing some large air bubbles in the liquid to exit from the outlet at the center of the vortex, reducing the gas content in the liquid entering the detection chamber, thereby improving the accuracy of the high gas-liquid ratio water content analyzer. The liquid flows out of the detection chamber from the outlet through the outlet channel of the second vortex channel. The outlet channel is coaxial with the second vortex channel and its inner diameter is greater than the maximum inner diameter of the second vortex channel, ensuring a smooth liquid flow.

[0014] Optionally, the oil outlet of the measuring tube is provided with a constriction port, and the difference between the radius of the constriction port and the radius of the measuring tube is not less than the radial distance between the liquid inlet and the inner wall of the measuring tube.

[0015] By adopting the above technical solution, under high gas-liquid ratio conditions, the liquid flow into the measuring tube is intermittent. The oil outlet end of the horizontally set measuring tube is equipped with a converging port, which can maintain a certain liquid level in the measuring tube, allowing the incoming liquid to gather at the bottom of the measuring tube. By controlling the radial distance between the liquid inlet and the measuring tube, the incoming liquid can be continuously flowed into the liquid inlet, thereby improving the detection effect.

[0016] Optionally, the transmitter is disc-shaped.

[0017] By adopting the above technical solution, the disc-shaped transmitter has a larger area, which can enhance the test signal.

[0018] Optionally, the ultrasonic cleaning system may also include a piezoelectric ceramic array, wherein the piezoelectric ceramic array is disposed on one side of the sealing flanges that are close to each other, and the piezoelectric ceramic array is located vertically between the transmitter and the detector.

[0019] By adopting the above technical solution, during the working cycle of the ultrasonic cleaning system, the piezoelectric ceramic array generates longitudinal waves of a specific frequency, which can induce cavitation effects at the transmitter-dirt interface and the detector-dirt interface. This can effectively remove surface wax and reduce the dissolved gas content in the liquid, thereby improving the accuracy of water content analysis results.

[0020] Optionally, the piezoelectric ceramic array includes multiple piezoelectric ceramic elements, the piezoelectric ceramic elements operating in the frequency range of 38-42kHz.

[0021] By adopting the above technical solution, when the ultrasonic cleaning system is working, the piezoelectric ceramic element generates longitudinal waves at a frequency of 38-42kHz, which can induce cavitation effect at the transmitter-dirt interface and the detector-dirt interface, better remove surface wax, and further reduce the dissolved gas content in the liquid, making the water content analysis results more accurate.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The swirling channel can generate swirling flow in the liquid, causing some large bubbles to leave from the outlet at the center of the swirling flow, effectively separating the bubbles and avoiding the problems of low separation efficiency and easy clogging of traditional gravity sedimentation devices and filter screens. 2. During the working cycle of the ultrasonic cleaning system, the piezoelectric ceramic element generates a 40kHz longitudinal wave, which can induce cavitation effect at the transmitter-dirt interface and the detector-dirt interface, thus removing surface wax and avoiding the problems of damage to the equipment surface caused by traditional mechanical scraping and high cost and introduction of impurities by chemical cleaning agents. 3. Ultrasonic cleaning systems can effectively reduce the dissolved gas content in liquids, making water content analysis results more accurate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the high gas-liquid ratio water content analyzer provided in the embodiments of this application.

[0024] Figure 2 This is a schematic diagram of the internal structure of the high gas-liquid ratio water content analyzer provided in the embodiments of this application.

[0025] Explanation of reference numerals in the attached diagram: 1-Measuring tube; 101-Oil inlet; 102-Oil outlet; 103-Constriction port; 2-Detection chamber; 201-Sealing flange; 202-Sealing sleeve; 203-Sealing ring; 3-Emitter; 4-Detector; 5-Hydrocyclone; 501-First cyclone channel; 502-Second cyclone channel; 503-Liquid inlet channel; 504-Liquid outlet channel; 505-Gas outlet pipe; 6-Indicator head; 7-Oil drain port; 8-Piezoelectric ceramic array. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0027] This application discloses a high gas-liquid ratio water content analyzer.

[0028] like Figure 1 and Figure 2 As shown, the high gas-liquid ratio water content analyzer includes a measuring tube 1, a detection chamber 2, a transmitter 3, and a detector 4. The measuring tube 1 is horizontally oriented and has an oil inlet 101 and an oil outlet 102. The detection chamber 2 is fitted outside the measuring tube 1 and is coaxially arranged with the measuring tube 1. The measuring tube 1 and the detection chamber 2 are connected. The transmitter 3 is located inside the detection chamber 2 and below the measuring tube 1 for emitting radio frequency microwaves. The detector 4 is located inside the detection chamber 2 and below the transmitter 3 for receiving the radio frequency microwaves emitted by the transmitter 3. This structure allows the radio frequency microwaves emitted by the transmitter 3 to pass through the liquid and be received by the detector 4. By analyzing the received signal, the water content in the liquid can be analyzed.

[0029] like Figure 1 and Figure 2 As shown, measuring tube 1 is the channel for liquid flow in the entire analyzer. Measuring tube 1 can be made of metal, such as stainless steel, which has good corrosion resistance and strength and can withstand liquid pressure. The oil inlet 101 of measuring tube 1 is used to connect the oil to be tested, while the oil outlet 102 discharges excess oil. Flange interfaces can be provided at the oil inlet 101 and the oil outlet 102 for easy connection with other pipelines.

[0030] The detection chamber 2 is fitted over the measuring tube 1 and is coaxially arranged with it. The detection chamber 2 can be made of aluminum alloy, which is lightweight and has high strength. The function of the detection chamber 2 is to provide a stable working environment for the transmitter 3 and the detector 4, while also ensuring smooth oil collection. The detection chamber 2 and the measuring tube 1 can be sealed together using a sealing ring 203 for easy disassembly and maintenance.

[0031] Transmitter 3 is located below measuring tube 1 inside detection chamber 2, and it is mainly responsible for emitting radio frequency microwaves. Transmitter 3 can be a disc-shaped structure, which allows the radio frequency microwaves to be emitted uniformly. Detector 4 is located below transmitter 3 and is used to receive the radio frequency microwaves emitted by transmitter 3.

[0032] Radio frequency microwaves are emitted by transmitter 3 and received by detector 4 after passing through the liquid. Since liquids with different water contents absorb and reflect radio frequency microwaves differently, the water content in the liquid can be obtained by analyzing the signal received by detector 4.

[0033] like Figure 1 and Figure 2 As shown, the moisture analyzer also includes a meter head 6, which is located on top of the detection chamber 2 and is simultaneously connected to the transmitter 3 and the detector 4. Meter head 6 is the control and display center of the entire analyzer. It can use an LCD screen to display information such as the moisture content of the liquid in real time. Meter head 6 contains a microprocessor that can process and analyze the signals transmitted from the transmitter 3 and the detector 4. Meter head 6 can also be designed with a touch screen for convenient operation and parameter setting. The signal connection between meter head 6 and transmitter 3 and detector 4 can be via data cable to ensure signal transmission stability, or via wireless communication, such as Bluetooth, to increase the flexibility of the device. The design of meter head 6 facilitates user operation of the analyzer and viewing of data, improving the ease of use of the device.

[0034] In order to discharge the tested oil in the testing chamber 2, the bottom of the testing chamber 2 is provided with an oil drain port 7, which can be connected to an external collection device through a pipe.

[0035] like Figure 1 and Figure 2 As shown, a hydrocyclone 5 is provided at the bottom of the measuring tube 1. The measuring tube 1 is connected to the detection chamber 2 through the hydrocyclone 5. The detection chamber 2 includes a sealing sleeve 202 and two sealing flanges 201 located at both ends of the sealing sleeve 202. The sealing sleeve 202 is fitted over the measuring tube 1, and the sealing flanges 201 are located on both sides of the hydrocyclone 5. The detector 4 and the transmitter 3 are both connected to the sealing sleeve 202. The function of the hydrocyclone 5 is to separate the liquid into gas and liquid, reducing the influence of air bubbles in the liquid on the detection results. A clearance groove for installing the hydrocyclone 5 can be reserved at the measuring tube 1 for easy welding connection, or it can be integrally formed with the hydrocyclone 5. The hydrocyclone 5 can be made of the same material as the measuring tube 1, which has good corrosion resistance. The sealing sleeve 202 is fitted over the measuring tube 1, and the sealing flanges 201 are used to fix the sealing sleeve 202 to ensure the sealing of the detection chamber 2.

[0036] like Figure 1 and Figure 2As shown, the hydrocyclone 5 has an inlet for connecting to the measuring tube 1, an outlet for connecting to the detection chamber 2, and a liquid phase channel arranged vertically. The liquid phase channel includes a first swirling channel 501 and a second swirling channel 502 arranged sequentially and coaxially in the vertical direction. Both the first swirling channel 501 and the second swirling channel 502 have inner walls that slope inward in the vertical direction. The minimum inner diameter of the first swirling channel 501 is larger than the maximum inner diameter of the second swirling channel 502. The top of the hydrocyclone 5 is provided with an outlet for discharging gas, and the outlet is connected to the first swirling channel. Channel 501 is coaxially arranged. The inlet is connected to the first vortex channel 501 through the inlet channel 503. The inlet channel 503 faces the oil inlet end 101 of the measuring tube 1 and is tangential to the first vortex channel 501. The inner diameter of the inlet channel 503 decreases from the direction near the inlet to the direction near the first vortex channel 501. The outlet is connected to the second vortex channel 502 through the outlet channel 504. The outlet channel 504 is coaxially arranged with the second vortex channel 502. The inner diameter of the outlet channel 504 is larger than the maximum inner diameter of the second vortex channel 502.

[0037] The inlet receives liquid from the measuring tube 1. The decreasing inner diameter design of the inlet channel 503 accelerates the liquid as it enters the first vortex channel 501. The inclined inner walls of the first and second vortex channels 501 and 502 guide the liquid to form a vortex, making it easier for bubbles to gather at the center. The outlet discharges the gathered gas. The outlet delivers the separated liquid to the detection chamber 2. The design of the outlet channel 504 ensures a smooth flow of liquid out of the hydrocyclone 5.

[0038] like Figure 1 and Figure 2 As shown, the oil outlet 102 of the measuring tube 1 is provided with a converging port 103. Under high gas-liquid ratio conditions, the liquid flow into the measuring tube 1 is intermittent. The converging port 103 at the oil outlet 102 of the horizontally arranged measuring tube 1 can maintain a certain liquid level in the measuring tube 1, allowing the incoming liquid to gather at the bottom of the measuring tube 1. By controlling the radial distance between the inlet and the measuring tube 1, the incoming liquid can be continuously flowed into the inlet, thereby improving the detection effect.

[0039] like Figure 1 and Figure 2As shown, the system also includes an ultrasonic cleaning system comprising a piezoelectric ceramic array 8. The piezoelectric ceramic array 8 is positioned on one side of the sealing flange 201, close to each other, and vertically between the transmitter 3 and the detector 4. The ultrasonic cleaning system removes wax buildup on the equipment surface and reduces the dissolved gas content in the liquid. The piezoelectric ceramic array 8 can be composed of multiple piezoelectric ceramic elements, with an operating frequency range of 38-42 kHz. Within this frequency range, the piezoelectric ceramic elements generate longitudinal waves, inducing cavitation effects at the transmitter 3-contaminant interface and the detector 4-contaminant interface. This cavitation effect effectively removes surface wax buildup and reduces the dissolved gas content in the liquid, resulting in more accurate water content analysis results.

[0040] The implementation principle of this embodiment is as follows: This high gas-liquid ratio water content analyzer, through a reasonable structural design, allows the liquid to flow in the measuring tube 1 and the detection chamber 2. The transmitter 3 emits radio frequency microwaves, and the detector 4 receives the signals to analyze the water content of the liquid. The hydrocyclone 5 effectively separates the gas and liquid, reducing the influence of air bubbles on the detection results. The meter 6 facilitates user operation and data viewing. The ultrasonic cleaning system removes wax deposits and reduces dissolved gas content, improving the accuracy and efficiency of the detection. Compared with existing technologies, it solves problems such as low gas-liquid separation efficiency, difficulty in removing wax deposits, and the influence of dissolved gases on detection results, offering better practicality and accuracy.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high gas-to-liquid ratio aqueous analyzer characterized by, The application relates to a water-containing analyzer, which comprises the following parts: a measuring tube (1) arranged in a horizontal direction and having an oil inlet end (101) and an oil outlet end (102); a detection chamber (2) arranged coaxially outside the measuring tube (1) and in communication with the measuring tube (1); a transmitter (3) arranged in the detection chamber (2) below the measuring tube (1) and used for transmitting radio frequency microwaves; a detector (4) arranged in the detection chamber (2) below the transmitter (3) and used for receiving the radio frequency microwaves transmitted by the transmitter (3).

2. The high gas-to-liquid ratio aqueous analyzer of claim 1, wherein, The bottom of the measuring tube (1) is provided with a cyclone (5), the measuring tube (1) is in communication with the detection chamber (2) through the cyclone (5), the detection chamber (2) comprises a sealing sleeve (202) and two sealing flanges (201) arranged at the two ends of the sealing sleeve (202), the sealing sleeve (202) is arranged outside the measuring tube (1), the sealing flanges (201) are arranged on the two sides of the cyclone (5), and the detector (4) and the transmitter (3) are connected with the sealing sleeve (202).

3. The high gas-to-liquid ratio aqueous analyzer of claim 2, wherein, The water-containing analyzer further comprises a meter head (6) arranged at the top of the detection chamber (2) and connected with the transmitter (3) and the detector (4) in signal connection, and an oil outlet (7) arranged at the bottom of the detection chamber (2) and used for discharging the oil after detection.

4. The high gas-liquid ratio aqueous analyzer of claim 3, wherein, The cyclone (5) has a liquid inlet used for being connected with the measuring tube (1), a liquid outlet used for being connected with the detection chamber (2) and a liquid phase channel arranged in a vertical direction, the liquid phase channel comprises a first cyclone channel (501) and a second cyclone channel (502) arranged in a vertical direction in sequence and coaxially, the first cyclone channel (501) and the second cyclone channel (502) have inner walls inclined inwards in a vertical direction, the minimum inner diameter of the first cyclone channel (501) is greater than the maximum inner diameter of the second cyclone channel (502), the top of the cyclone (5) is provided with a gas outlet used for discharging gas, the gas outlet is arranged coaxially with the first cyclone channel (501) and is connected with a position of the detection chamber (2) higher than the measuring tube (1) through a gas outlet pipe (505), the liquid inlet is connected with the first cyclone channel (501) through a liquid inlet channel (503), the liquid inlet channel (503) is tangent to the first cyclone channel (501), the inner diameter of the liquid inlet channel (503) decreases from the direction close to the liquid inlet to the direction close to the first cyclone channel (501), and the liquid outlet is connected with the second cyclone channel (502) through a liquid outlet channel (504), the liquid outlet channel (504) is arranged coaxially with the second cyclone channel (502), and the inner diameter of the liquid outlet channel (504) is greater than the maximum inner diameter of the second cyclone channel (502).

5. The high gas-to-liquid ratio aqueous analyzer of claim 4, wherein, The oil outlet end (102) of the measuring tube (1) is provided with a converging opening (103), and the difference between the radius of the converging opening (103) and the radius of the measuring tube (1) is not less than the radial distance between the liquid inlet and the inner wall of the measuring tube (1).

6. The high gas-liquid ratio aqueous analyzer of claim 3, wherein, The transmitter (3) is a circular pie shape.

7. The high gas-to-liquid ratio aqueous analyzer of claim 6, wherein, The ultrasonic cleaning system further comprises a piezoelectric ceramic array (8) arranged on the side of the sealing flange (201) close to each other, and the piezoelectric ceramic array (8) is located between the transmitter (3) and the detector (4) in the vertical direction.

8. The high gas-liquid ratio aqueous analyzer of claim 7, wherein, The piezoelectric ceramic array (8) comprises a plurality of piezoelectric ceramic elements, and the working frequency range of the piezoelectric ceramic elements is 38-42 kHz.

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