Novel oil well water content measuring instrument

Abstract

The invention provides an oil well water content measuring instrument. The oil well water content measuring instrument comprises a gas-liquid separator, a gas flowing pipe, a liquid flowing pipe, a horizontal separator, a filtering medium pipe, a gas circuit metering pipe, a communicating pipe, an outlet pipe end and a water content instrument, the upper end of the gas-liquid separator is connected with the gas circulation pipe, the lower end of the gas-liquid separator is connected with the liquid circulation pipe, one end of the liquid circulation pipe is connected with the horizontal separator, one end of the gas circulation pipe is connected with the filtering medium pipe, one end of the filtering medium pipe is connected with the gas path metering pipe, and the other end of the filtering medium pipe is connected with the gas path metering pipe. The gas path metering pipe and the liquid path metering pipeline are respectively connected with the outlet pipe end, two ends of the communicating pipe are respectively connected with the filter medium pipe and the liquid path metering pipeline, and a moisture content meter is arranged at one end, far away from the horizontal separator, of the liquid path metering pipeline. The whole process does not need to be manually sampled and tested for many times at the wellhead, the labor intensity of workers, potential safety hazards and the detection cost are reduced, real-time monitoring of the water content of the oil well can be achieved, and the digitization and refinement level of oil field production management is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of monitoring the water content of oil well production fluid during oil production, and in particular relates to an oil well water content measuring instrument. Background Art

[0002] The water content of oil well production fluid is an important indicator for oilfield management, analysis and evaluation. It can be used to measure oil and liquid production of oil wells, evaluate oil well production, predict oil well development life, etc. It is generally obtained by manual sampling and testing, which has a long detection cycle, high cost, poor real-time performance, and high labor intensity. At present, most domestic oil fields have entered the "double high" exploitation stage of high water content and high recovery degree. The water content of some oil wells has increased and is close to the economic exploitation limit. In order to timely understand and grasp the production status of the oil production process so as to guide the execution of subsequent production plans in a targeted manner, ensure that the oil wells are always in the best production state, and ultimately achieve the purpose of improving oil well exploitation efficiency and crude oil recovery efficiency, the measurement of oil well water content has become extremely urgent.

[0003] In the authorized Chinese utility model patent "Announcement No.: CN210005483U, Name: A device for measuring the water content of oil wells", the separation of gas and liquid is achieved by repeatedly fitting and separating the float and the sealing surface, and an ultrasonic measuring probe is used to measure the water content. However, the above application requires manual sampling and testing at the wellhead for multiple times, which is labor-intensive, and the monitoring speed and efficiency are low. Multiple wellhead sampling poses great safety hazards, and it is difficult to monitor the water content of the oil well in real time through wellhead sampling and testing. At the same time, the float and the sealing surface are attached to separate the gas and liquid, but the separation effect is poor, and multiple repeated fitting and separation are required, which affects the separation efficiency and leads to large errors in water content detection.

[0004] Therefore, there is an urgent need for a measuring instrument with a simple structure, high stability, and the ability to monitor the water content of oil well production in real time. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an oil well water content measuring instrument in order to overcome the defects of the prior art in that the gas-liquid separation efficiency is low, the effect is poor and it is difficult to accurately monitor the water content of the oil well in real time.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides an oil well water content measuring instrument, comprising a gas-liquid separator, wherein the upper end of the gas-liquid separator is connected to a gas flow pipe, and the lower end of the gas-liquid separator is connected to a liquid flow pipe, and the gas-liquid separator is used to separate gas from liquid in a three-phase mixed liquid of oil, gas and water;

[0008] A horizontal separator, one end of the liquid circulation pipe is connected to the horizontal separator, the horizontal separator is used to further separate gas and liquid, and one end of the horizontal separator is connected to a liquid metering pipeline;

[0009] A filter medium tube, one end of the gas flow tube is connected to the filter medium tube, and one end of the filter medium tube is connected to a gas path metering tube;

[0010] An outlet pipe end, the gas circuit metering pipe and the liquid circuit metering pipeline are respectively connected to the outlet pipe end;

[0011] A connecting pipe, both ends of which are connected to the filter medium pipe and the liquid metering pipeline respectively;

[0012] A water content meter is arranged at one end of the liquid metering pipeline away from the horizontal separator.

[0013] In the technical scheme, the gas-liquid separator and the horizontal separator are used to separate the gas and liquid, and the horizontal separator is provided with electrodes. Under the action of gravity and electrostatic attraction, the efficiency of traditional gravity sedimentation is accelerated, and the gas-liquid separation is accelerated. After standing for a period of time, the liquid is connected to the liquid metering pipeline, and the relatively complete separation of gas and liquid is achieved, the gas-liquid separation effect is enhanced, and the gas-liquid separation efficiency is improved, thereby reducing the error of water content detection and improving the accuracy of oil well water content detection;

[0014] Moreover, the entire process does not require manual sampling and testing at the wellhead multiple times, which reduces manual labor intensity, safety hazards and testing costs. It can realize real-time monitoring of the water content of oil well production fluid and improve the digitalization and refinement level of oilfield production management.

[0015] Preferably, a first liquid flow meter is provided at one end of the connecting pipe close to the filter medium pipe;

[0016] A second liquid flow meter is arranged at one end of the liquid metering pipeline close to the horizontal separator.

[0017] In the present technical solution, the water content can be detected by using a water content meter, a first liquid flow meter and a second liquid flow meter.

[0018] Preferably, the horizontal separator is a separator with electrodes.

[0019] In this technical solution, since the horizontal separator is provided with electrodes, the difference in electrical conductivity between gas and liquid causes the liquid to settle downward faster, thus speeding up the efficiency of traditional gravity sedimentation.

[0020] Preferably, the gas-liquid separator comprises a fixed shell, and an inner cylinder is arranged in the inner cavity of the fixed shell;

[0021] The inner wall of the fixed shell is connected to a plurality of fixed spiral sheets;

[0022] The inner wall of the inner cylinder is connected to a plurality of inner spiral sheets distributed in a staggered manner, the outer wall of the inner cylinder is connected to a plurality of outer spiral sheets, and the top of the outer spiral sheets is connected to an impact separation net;

[0023] A lower filter screen is provided below the inner cylinder, and the lower filter screen is connected to the inner wall of the fixed outer shell;

[0024] An upper filter screen is arranged above the inner spiral sheet, and the upper filter screen is connected to the inner wall of the inner cylinder.

[0025] In this technical solution, a gas-liquid separator is used to perform preliminary separation of gas and liquid.

[0026] Preferably, the inner cylinder is connected to the inner wall of the fixed outer shell through a rotating assembly, and the rotating assembly includes an anti-slip ring (fixed track), and the anti-slip ring (fixed track) is connected to the top of the inner cylinder;

[0027] The anti-slip ring (fixed track) is slidably connected to the inner side, and the connection is fixed to the inner wall of the top surface of the outer shell;

[0028] The outer side surface of the inner cylinder is connected to a gear ring, and the side surface of the gear ring is meshedly connected to a rotating gear;

[0029] The rotating gear is connected to the output end of the driving source, and the driving source is installed on the top of the fixed shell.

[0030] In the present technical solution, the rotating assembly can be used to drive the inner cylinder to rotate, so as to disperse and collide the gas and liquid, thereby improving the effect of gas-liquid separation and improving the efficiency of gas-liquid separation.

[0031] Preferably, a cleaning assembly is provided at the lower filter screen, and the cleaning assembly comprises a transmission shaft, and the surface of the transmission shaft is rotatably connected to the lower filter screen;

[0032] The upper end of the transmission shaft is connected to an upper connecting bar, which is connected to the bottom of the inner cylinder, and the lower end of the transmission shaft is rotatably connected to a lower connecting bar, which is connected to the bottom of the inner cavity of the fixed shell;

[0033] A plurality of mounting plates are connected to the side surfaces at both ends of the transmission shaft, and a cleaning brush is connected to a side of the mounting plate close to the lower filter screen, and the cleaning brush is in contact with the lower filter screen.

[0034] In the technical solution, the lower filter screen can be cleaned by using a cleaning component.

[0035] Preferably, a feed pipe opening is installed on one side of the fixed shell.

[0036] In the technical solution, the material in the oil well can be fed into the gas-liquid separator through the feed pipe port for gas-liquid separation treatment.

[0037] Preferably, the horizontal separator comprises a separation shell and a separation shell, and both ends of the separation shell are respectively connected to a liquid circulation pipe and a liquid metering pipeline;

[0038] The inner wall of the separation shell is connected with an electrode plate.

[0039] In the technical solution, the gas and liquid can be separated again by using a horizontal separator, so that the gas-liquid separation effect is better.

[0040] Preferably, a distribution pipeline is provided in the inner cavity of the separation shell, and one end of the distribution pipeline is connected to one end of the liquid circulation pipe.

[0041] In the technical solution, the distribution pipeline can be used to evenly disperse the liquid in the inner cavity of the separation shell to facilitate the separation of gas and liquid.

[0042] Preferably, the distribution pipeline is distributed in a serpentine shape, and a plurality of spray holes are opened on the surface of the distribution pipeline.

[0043] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0044] The positive and progressive effects of the present invention are:

[0045] The present invention utilizes a gas-liquid separator and a horizontal separator to separate gas and liquid, and the horizontal separator is provided with electrodes, which accelerates the efficiency of traditional gravity sedimentation under the action of gravity and electrostatic attraction, accelerates the gas-liquid separation, and connects the liquid to the liquid metering pipeline after standing for a period of time, thereby achieving relatively complete separation of gas and liquid, enhancing the gas-liquid separation effect, and improving the gas-liquid separation efficiency, thereby reducing the error of water content detection and improving the accuracy of oil well water content detection;

[0046] At the same time, a filter medium tube is set up to take into account the small-sized liquid carried in the gas after the primary gas-liquid separation, thereby improving the accuracy of calculating the moisture content;

[0047] Moreover, the entire process does not require manual sampling and testing at the wellhead multiple times, which reduces manual labor intensity, safety hazards and testing costs. It can realize real-time monitoring of the water content of oil well production fluid and improve the digitalization and refinement level of oilfield production management. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 Schematic diagram of the structure of an oil well water content measuring instrument according to an embodiment of the present invention.

[0049] Figure 2 for Figure 1 The schematic diagram of the overall internal structure of the oil well water content measuring instrument is shown.

[0050] Figure 3 for Figure 1 The diagram shows the internal structure of the gas-liquid separator of the oil well water content measuring instrument.

[0051] Figure 4 for Figure 3 The diagram shows a local enlarged structural diagram of point A of the oil well water content measuring instrument.

[0052] Figure 5 for Figure 3 The diagram shows a partial enlarged structural diagram of location B of the oil well water content measuring instrument.

[0053] Figure 6 for Figure 1 The schematic diagram of the internal structure of the horizontal separator of the oil well water content measuring instrument is shown.

[0054] Description of Reference Numerals

[0055] 1. Gas-liquid separator;

[0056] 2. Gas circulation pipe;

[0057] 3. Liquid circulation pipe;

[0058] 4. Horizontal separator;

[0059] 5. Liquid metering pipeline;

[0060] 6. Filter medium tube;

[0061] 7. Gas line metering tube;

[0062] 8. Outlet pipe end;

[0063] 9. Connecting pipe;

[0064] 10. Moisture content meter;

[0065] 11. First liquid flow meter;

[0066] 12. A second liquid flow meter;

[0067] 13. Fix the outer shell;

[0068] 14. Inner cylinder;

[0069] 15. Feeding nozzle;

[0070] 16. Fix the spiral piece;

[0071] 17. Inner spiral blade;

[0072] 18. External spiral blade;

[0073] 19. Impact separation net;

[0074] 20. Lower filter;

[0075] 21. Upper filter;

[0076] 22. Rotating assembly; 221. Anti-slip ring; 222. Fixed track; 223. Gear ring; 224. Rotating gear; 225. Driving source;

[0077] 23. Cleaning assembly; 231. Transmission shaft; 232. Upper connecting bar; 233. Lower connecting bar; 234. Mounting plate; 235. Cleaning brush;

[0078] 24. Separate the outer shell;

[0079] 25. Electrode plate;

[0080] 26. Distribution pipelines. DETAILED DESCRIPTION

[0081] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0082] Figures 1 to 6 The figure shows a schematic diagram of the structure of an embodiment of the oil well water content measuring instrument of the present invention. The oil well water content measuring instrument comprises a gas-liquid separator 1, the upper end of the gas-liquid separator 1 is connected to a gas flow pipe 2, the lower end of the gas-liquid separator 1 is connected to a liquid flow pipe 3, and the gas-liquid separator 1 is used to separate the gas and liquid of the three-phase mixed liquid of oil, gas and water;

[0083] A horizontal separator 4, one end of the liquid flow pipe 3 is connected to the horizontal separator 4, the horizontal separator 4 is used to further separate the gas and liquid, and one end of the horizontal separator 4 is connected to a liquid metering pipeline 5;

[0084] A filter medium tube 6, one end of the gas flow tube 2 is connected to the filter medium tube 6, and one end of the filter medium tube 6 is connected to a gas path metering tube 7;

[0085] The filter medium tube 6 is a filter medium frame made of stainless steel wire mesh, which takes into account the small-sized liquid carried in the gas after the primary gas-liquid separation, thereby improving the accuracy of calculating the water content.

[0086] An outlet pipe end 8, the gas circuit metering pipe 7 and the liquid circuit metering pipeline 5 are respectively connected to the outlet pipe end 8;

[0087] A connecting pipe 9, both ends of which are connected to the filter medium pipe 6 and the liquid metering pipeline 5 respectively;

[0088] A water content meter 10 is provided at one end of the liquid metering pipeline 5 away from the horizontal separator 4 .

[0089] In the technical scheme, the gas-liquid separator 1 and the horizontal separator 4 can be used to separate the gas and liquid, and the horizontal separator 4 is provided with electrodes, which accelerate the efficiency of traditional gravity sedimentation under the action of gravity and electrostatic attraction, accelerate the gas-liquid separation, and connect the liquid to the liquid metering pipeline 5 after standing for a period of time, so as to achieve relatively complete separation of gas and liquid, enhance the gas-liquid separation effect, and improve the gas-liquid separation efficiency, thereby reducing the error of water content detection and improving the accuracy of oil well water content detection;

[0090] Moreover, the entire process does not require manual sampling and testing at the wellhead multiple times, which reduces manual labor intensity, safety hazards and testing costs. It can realize real-time monitoring of the water content of oil well production fluid and improve the digitalization and refinement level of oilfield production management.

[0091] The connecting pipe 9 is provided with a first liquid flow meter 11 at one end close to the filter medium pipe 6;

[0092] A second liquid flow meter 12 is provided at one end of the liquid metering pipeline 5 close to the horizontal separator 4 .

[0093] In the present technical solution, the water content can be detected by using the water content meter 10 , the first liquid flow meter 11 and the second liquid flow meter 12 .

[0094] The horizontal separator 4 is a separator with electrodes.

[0095] In this technical solution, since the horizontal separator 4 is provided with electrodes, the difference in electrical conductivity between the gas and the liquid causes the liquid to settle downward faster, thereby speeding up the efficiency of traditional gravity sedimentation.

[0096] When in use, the three-phase mixture of oil, gas and water in the oil well enters the gas-liquid separator 1 along the tangent line, and the gas is converted into a rotating airflow through the gas-liquid separator 1 and rises to the top of the separator. Under the action of inertia, the liquid droplets are ejected at a certain elevation angle and converge into the overflow tank to achieve preliminary separation of gas and liquid.

[0097] The gas flowing out from the top of the gas-liquid separator 1 enters the filter medium tube 6 through the gas flow tube 2, and enters the gas path metering tube 7 after being filtered by the filter medium tube 6. The droplets of small particles of 0.1-10 μm separated by the filter medium tube 6 enter the connecting tube 9, and then enter the liquid path metering pipeline 5;

[0098] The liquid separated by the gas-liquid separator 1 enters the horizontal separator 4 through the liquid circulation pipe 3. Under the action of gravity and electrostatic attraction, the gas-liquid separation in the horizontal separator 4 is accelerated. After standing for a period of time, the liquid is connected to the liquid metering pipeline 5, achieving relatively complete separation of gas and liquid.

[0099] By using the water content meter 10, the first liquid flow meter 11 and the second liquid flow meter 12, the water content sensor is sensitive to the dielectric constant of the water-containing crude oil being measured, and the change of the water content measured by the admittance sensor probe is converted into a change of the admittance of the probe, so that the admittance sensor outputs an electrical signal corresponding to the change of the water content, thereby measuring the water content of the crude oil.

[0100] The gas-liquid separator 1 comprises a fixed shell 13, and an inner cylinder 14 is arranged in the inner cavity of the fixed shell 13;

[0101] The inner wall of the fixed housing 13 is connected to a plurality of fixed spiral pieces 16;

[0102] The inner wall of the inner cylinder 14 is connected to a plurality of staggered inner spiral sheets 17, the outer wall of the inner cylinder 14 is connected to a plurality of outer spiral sheets 18, and the top of the outer spiral sheets 18 is connected to an impact separation net 19;

[0103] A lower filter screen 20 is disposed below the inner cylinder 14, and the lower filter screen 20 is connected to the inner wall of the fixed shell 13;

[0104] An upper filter screen 21 is disposed above the inner spiral sheet 17 , and the upper filter screen 21 is connected to the inner wall of the inner cylinder 14 .

[0105] In this technical solution, a gas-liquid separator 1 is used to perform preliminary separation of gas and liquid.

[0106] The three-phase mixture of oil, gas and water in the oil well enters the fixed outer shell 13 through the feed pipe 15, and then enters the inner cylinder 14 along the fixed spiral blade 16 and the outer spiral blade 18. Then the gas enters the upper filter screen 21 through the inner spiral blade 17, and finally enters the gas circulation pipe 2 after being filtered by the upper filter screen 21. The liquid enters the liquid circulation pipe 3 after being filtered by the lower filter screen 20, thereby realizing the separation of gas and liquid.

[0107] The inner cylinder 14 is connected to the inner wall of the fixed outer shell 13 through a rotating assembly 22, and the rotating assembly 22 includes an anti-slip ring fixed track 222, and the anti-slip ring fixed track 222 is connected to the top of the inner cylinder 14;

[0108] The anti-slip ring fixing rail 222 is slidably connected to the inner side of 222, and the 222 is connected to the inner wall of the top surface of the fixed shell 13;

[0109] The outer side of the inner cylinder 14 is connected to a gear ring 223, and the side of the gear ring 223 is meshedly connected to a rotating gear 224;

[0110] The rotating gear 224 is connected to the output end of a driving source 225 , and the driving source 225 is installed on the top of the fixed housing 13 .

[0111] In the present technical solution, the rotating assembly 22 can be used to drive the inner cylinder 14 to rotate, so as to disperse and collide the gas and liquid, thereby improving the effect of gas-liquid separation and the efficiency of gas-liquid separation.

[0112] When in use, the driving source 225 is utilized to drive the rotating gear 224 to rotate, thereby driving the gear ring 223 to rotate, and further driving the inner cylinder 14 to rotate. At this time, the anti-slip ring fixed track 222 can be driven to move within 222. When the inner cylinder 14 rotates, the outer spiral blades 18, the impact separation net 19 and the inner spiral blades 17 can be driven to rotate, so that the inner spiral blades 17, the outer spiral blades 18 and the impact separation net 19 can contact the oil-gas-water three-phase mixture faster, thereby improving the gas-liquid separation efficiency.

[0113] The lower filter screen 20 is provided with a cleaning assembly 23, and the cleaning assembly 23 includes a transmission shaft 231, and the surface of the transmission shaft 231 is rotatably connected to the lower filter screen 20;

[0114] The upper end of the transmission shaft 231 is connected to an upper connecting bar 232, and the upper connecting bar 232 is connected to the bottom of the inner cylinder 14. The lower end of the transmission shaft 231 is rotatably connected to a lower connecting bar 233, and the lower connecting bar 233 is connected to the bottom of the inner cavity of the fixed shell 13.

[0115] A plurality of mounting plates 234 are connected to the upper and lower sides of the transmission shaft 231 . A cleaning brush 235 is connected to one side of the mounting plate 234 close to the lower filter screen 20 . The cleaning brush 235 contacts the lower filter screen 20 .

[0116] In the present technical solution, the lower filter screen 20 can be cleaned by using the cleaning assembly 23 .

[0117] When the inner cylinder 14 rotates, the upper connecting bar 232 can be driven to rotate, thereby driving the upper connecting bar 232 to rotate, and then driving the mounting plate 234 and the cleaning brush 235 to rotate, and the cleaning brush 235 is used to clean the lower filter screen 20 to prevent the lower filter screen 20 from being blocked and affecting its use.

[0118] A feed pipe opening 15 is installed on one side of the fixed shell 13 .

[0119] In the present technical solution, the material in the oil well can be fed into the gas-liquid separator 1 through the feed pipe port 15 for gas-liquid separation treatment.

[0120] The horizontal separator 4 comprises a separation shell 24 and a separation shell 24, and both ends of the separation shell 24 are connected to the liquid circulation pipe 3 and the liquid metering pipeline 5 respectively;

[0121] The inner wall of the separation shell 24 is connected with an electrode plate 25 .

[0122] In this technical solution, the gas and liquid can be separated again by using the horizontal separator 4, so that the gas-liquid separation effect is better.

[0123] A distribution pipeline 26 is provided in the inner cavity of the separation shell 24 , and one end of the distribution pipeline 26 is connected to one end of the liquid circulation pipe 3 .

[0124] In the present technical solution, the distribution pipeline 26 can be used to evenly disperse the liquid in the inner cavity of the separation shell 24 to facilitate the separation of gas and liquid.

[0125] The distribution pipeline 26 is distributed in a serpentine shape, and a plurality of spray holes are opened on the surface of the distribution pipeline 26 .

[0126] When in use, the liquid separated by the gas-liquid separator 1 enters the distribution pipeline 26 and is then evenly sprayed in the inner cavity of the separation shell 24. At this time, under the action of the electrode plate 25 and gravity, the difference in conductivity between gas and liquid causes the liquid to settle downward faster, thereby speeding up the efficiency of traditional gravity sedimentation.

[0127] The driving source 225 is a motor or other equipment that can output rotational kinetic energy.

[0128] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. Oil well water content measuring instrument, characterized by: The invention comprises a gas-liquid separator (1), wherein the upper end of the gas-liquid separator (1) is connected to a gas flow pipe (2), and the lower end of the gas-liquid separator (1) is connected to a liquid flow pipe (3), and the gas-liquid separator (1) is used to separate gas from liquid in a three-phase mixed liquid of oil, gas and water; A horizontal separator (4), one end of the liquid circulation pipe (3) is connected to the horizontal separator (4), the horizontal separator (4) is used to further separate gas and liquid, and one end of the horizontal separator (4) is connected to a liquid metering pipeline (5); A filter medium tube (6), one end of the gas flow tube (2) is connected to the filter medium tube (6), and one end of the filter medium tube (6) is connected to a gas path metering tube (7); An outlet pipe end (8), the gas circuit metering pipe (7) and the liquid circuit metering pipeline (5) are respectively connected to the outlet pipe end (8); A connecting pipe (9), the two ends of which are respectively connected to the filter medium pipe (6) and the liquid metering pipeline (5); A water content meter (10) is provided at one end of the liquid metering pipeline (5) away from the horizontal separator (4).

2. The oil well water content measuring instrument according to claim 1, characterized in that: A first liquid flow meter (11) is provided at one end of the connecting pipe (9) close to the filter medium pipe (6); A second liquid flow meter (12) is provided at one end of the liquid metering pipeline (5) close to the horizontal separator (4).

3. The oil well water content measuring instrument according to claim 1, characterized in that: The horizontal separator (4) is a separator with electrodes.

4. The oil well water content measuring instrument according to claim 1, characterized in that: The gas-liquid separator (1) comprises a fixed outer shell (13), and an inner cylinder (14) is arranged at the inner cavity of the fixed outer shell (13); The inner wall of the fixed shell (13) is connected to a plurality of fixed spiral sheets (16); The inner wall of the inner cylinder (14) is connected to a plurality of inner spiral sheets (17) which are distributed in a staggered manner, the outer wall of the inner cylinder (14) is connected to a plurality of outer spiral sheets (18), and the top of the outer spiral sheets (18) is connected to an impact separation net (19); A lower filter screen (20) is provided below the inner cylinder (14), and the lower filter screen (20) is connected to the inner wall of the fixed outer shell (13); An upper filter screen (21) is arranged above the inner spiral sheet (17), and the upper filter screen (21) is connected to the inner wall of the inner cylinder (14).

5. The oil well water content measuring instrument as claimed in claim 4, characterized in that: The inner cylinder (14) is connected to the inner wall of the fixed outer shell (13) through a rotating assembly (22), and the rotating assembly (22) includes an anti-slip ring (fixed track (222)), and the anti-slip ring (fixed track (222)) is connected to the top of the inner cylinder (14); The anti-slip ring (fixed track (222)) is slidably connected to the inner side of 222, and the 222 is connected to the inner wall of the top surface of the fixed shell (13); The outer side surface of the inner cylinder (14) is connected to a gear ring (223), and the side surface of the gear ring (223) is meshingly connected to a rotating gear (224); The rotating gear (224) is connected to the output end of a driving source (225), and the driving source (225) is installed on the top of the fixed housing (13).

6. The oil well water content measuring instrument as claimed in claim 4, characterized in that: A cleaning assembly (23) is provided at the lower filter screen (20), and the cleaning assembly (23) comprises a transmission shaft (231), and the surface of the transmission shaft (231) is rotatably connected to the lower filter screen (20); The upper end of the transmission shaft (231) is connected to an upper connecting bar (232), and the upper connecting bar (232) is connected to the bottom of the inner cylinder (14); the lower end of the transmission shaft (231) is rotatably connected to a lower connecting bar (233), and the lower connecting bar (233) is connected to the bottom of the inner cavity of the fixed outer shell (13); The upper and lower sides of the transmission shaft (231) are both connected to a plurality of mounting plates (234), and a cleaning brush (235) is connected to a side of the mounting plate (234) close to the lower filter screen (20), and the cleaning brush (235) is in contact with the lower filter screen (20).

7. The oil well water content measuring instrument according to claim 4, characterized in that: A feed pipe opening (15) is installed on one side of the fixed housing (13).

8. The oil well water content measuring device according to claim 1, characterized in that: The horizontal separator (4) comprises a separation shell (24) and a separation shell (24), and both ends of the separation shell (24) are respectively connected to the liquid circulation pipe (3) and the liquid metering pipeline (5); The inner wall of the separation shell (24) is connected to an electrode plate (25).

9. The oil well water content measuring instrument according to claim 8, characterized in that: A distribution pipeline (26) is provided in the inner cavity of the separation shell (24), and one end of the distribution pipeline (26) is connected to one end of the liquid circulation pipe (3).

10. The oil well water content measuring instrument according to claim 9, characterized in that: The distribution pipeline (26) is distributed in a serpentine shape, and a plurality of spray holes are provided on the surface of the distribution pipeline (26).

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