Gas well dynamic reserve measuring device and measuring method

Abstract

The application relates to the technical field of gas well reserve measuring devices, and is a gas well dynamic reserve measuring device and a measuring method. The former comprises a pressure sensor for measuring the pressure in a well, a connector fixedly connected to the side wall of the pressure sensor, a wire fixedly connected to the connector, structure-same telescopic structures symmetrically arranged on the left and right sides of the pressure sensor, a hollow rod fixedly connected to the outer side of the pressure sensor, a fixed rod sealingly and slidably connected in the hollow rod, a first spring fixedly connected between the fixed rod and the inner wall of the hollow rod, and a hollow arc-shaped block fixed to the outer side of the pressure sensor. The application has the advantages of reasonable and compact structure, convenient use, the telescopic structure being capable of being in contact with the inner wall of the elongated and conveying pipe after the pressure sensor reaches a specified position and being quickly fixed in the conveying pipe through the cooperation of the arc-shaped block, the push block and the electromagnet, the telescopic structure being capable of being retracted when the sensor needs to be taken out, quickness and convenience, and convenience in installation and dismounting.

Description

Technical Field

[0001] This invention relates to the field of gas well reserve measurement device technology, and is a dynamic gas well reserve measurement device and measurement method. Background Technology

[0002] Tight gas reservoirs are those with low porosity and poor permeability, making it difficult for natural gas to flow and be produced. Although the extraction of tight gas reservoirs is relatively difficult, their large reserves and wide distribution give them extremely high economic value. In recent years, with technological advancements and cost reductions, the extraction of tight gas reservoirs has gradually become feasible.

[0003] Dynamic reserve studies of gas wells in novel tight gas reservoirs reveal the dynamic changes and reserve distribution characteristics within the reservoir by real-time monitoring and analysis of various parameters during the well's production process. Dynamic reserve studies not only help assess the reservoir's exploitation potential and economic value but also provide a scientific basis for developing reasonable exploitation plans.

[0004] In dynamic reserve studies, a series of key parameters need to be monitored, such as gas production, pressure, and temperature. Changes in these parameters reflect information about fluid migration, pressure transmission, and reservoir properties within the gas reservoir. Tight gas reservoirs are situated in complex geological environments with uneven reservoir distribution, and the well production process is often accompanied by significant pressure fluctuations. Therefore, to accurately monitor and control the well pressure, pressure sensors need to be installed at the bottom of the delivery pipeline. In practice, delivery pipelines are typically very long, and installing pressure sensors requires lowering them to a designated location, securing them, and then removing and reinstalling them for maintenance. Existing technology is inconvenient for the installation, securing, and disassembly of pressure sensors within the delivery pipeline, resulting in time-consuming, labor-intensive, and inconvenient installation and maintenance. Summary of the Invention

[0005] This invention provides a dynamic gas well reserve measurement device and method, which overcomes the shortcomings of the prior art and can effectively solve the problem of time-consuming and labor-intensive installation, fixing and disassembly of existing pressure sensors.

[0006] One of the technical solutions of this invention is achieved through the following measures: a dynamic reserve measurement device for gas wells, comprising a pressure sensor for measuring pressure inside the well, a connector fixedly connected to the side wall of the pressure sensor, a wire fixedly connected to the connector, telescopic structures with identical structures symmetrically installed on the left and right sides of the pressure sensor, the telescopic structure comprising a hollow rod fixedly connected to the outside of the pressure sensor, a fixed rod slidably connected inside the hollow rod, a first spring fixedly connected between the fixed rod and the inner wall of the hollow rod, a hollow arc-shaped block fixedly attached to the outside of the pressure sensor, a push block made of magnetic material slidably connected inside the arc-shaped block, an electromagnet magnetically attracted to the push block fixedly connected to the inner wall of the arc-shaped block, a second spring fixedly connected between the push block and the inner wall of the arc-shaped block, and the arc-shaped block communicating with the hollow rod through a connecting pipe.

[0007] The following are further optimizations and / or improvements to the above-mentioned technical solution: Preferably, a first mounting block is fixedly connected to the outer end of the fixed rod, a rotating shaft is rotatably connected to the first mounting block, and a first roller is fixedly connected to the rotating shaft.

[0008] Preferably, the first mounting block at the outer side of the rotating shaft position is provided with a groove, a hollow elastic ring is fitted on the outer side of the rotating shaft, a top plate is slidably mounted on the inner side of the outer end of the mounting block, the inner end of the top plate is in contact with the elastic ring, and the first roller is made of elastic material.

[0009] Preferably, the first roller has a hollow structure inside, multiple sets of air vents are opened on the first roller, and a rectangular frame is rolled inside the first roller.

[0010] Preferably, a connecting rod is fixedly connected to the lower side of the pressure sensor, and a rotating groove is provided at the bottom end of the connecting rod. A second roller is rotatably connected in the rotating groove, and a rotating mechanism for driving the second roller to rotate is provided on the connecting rod.

[0011] Preferably, the rotating mechanism includes a drive rod and a push plate. A second cavity is provided in the middle of the connecting rod. A first cavity with an opening facing downwards is provided on the connecting rod on both the left and right sides corresponding to the second cavity. The upper parts of the two first cavities are connected to the second cavity through air inlet slots. A sealing structure that can open the corresponding air inlet slot is provided on the lower side of the pressure sensor and the connecting rod at the corresponding position. A drive rod is slidably and sealingly connected to the lower inner side of the first cavity. A third spring is fixedly connected between the top surface of the drive rod and the upper inner side of the first cavity. A push plate is slidably and sealingly connected to the lower inner side of the second cavity. A fourth spring is fixedly connected between the bottom surface of the push plate and the lower inner side of the second cavity. A conduit is connected between the second cavity and the arc-shaped block. The second roller is made of an elastic material.

[0012] Preferably, the sealing mechanism includes a sealing plate that is slidably connected to the connecting rod. The lower end of the sealing plate can block the air inlet groove. The pressure sensor has a groove and a slider is provided in the groove. The slider can slide in the groove. The top surface of the sealing plate extends into the groove. A connecting line is fixedly connected between the side wall of the slider and the top surface of the sealing plate.

[0013] Preferably, the arc-shaped block and the pressure sensor are provided with corresponding air outlet grooves, and a second control valve is provided in the air outlet groove. A first control valve is fixedly connected to both the conduit and the connecting pipe.

[0014] Preferably, a positioning plate is provided above the connector, and a connecting plate is fixedly connected to the top surface of the positioning plate. Multiple sets of round holes are provided on the connecting plate, and adjusting plates are slidably connected to both sides of the connecting plate. The adjusting plates can be installed on the pipe wall by bolts, and the wires pass through the positioning plate and the connecting plate.

[0015] The second technical solution of the present invention is achieved through the following measures: a measurement method, performed according to the following method, Static data, including geological, lithological, porosity, and permeability data, are collected, and the gas reservoir structure is modeled through geological modeling. Dynamic data, including bottom hole pressure, production testing, and production data, are collected to analyze the dynamic performance of the gas reservoir. The collection of bottom hole pressure data requires the pressure sensor to be lowered into the pipeline. After the pressure sensor is lowered to the appropriate position, the gas in the arc-shaped block is pushed into the hollow rod by the electromagnet attracting the pusher block. The gas will push the fixing rod, so that the fixing rod is pressed against the inner wall of the delivery pipe, thus fixing the pressure sensor in the delivery pipe. When it is necessary to remove the pressure sensor from the delivery pipe, turn off the electromagnet so that the first spring pulls the fixing rod no longer in contact with the inner wall of the delivery pipe, and pull the wire to remove the pressure sensor from the delivery pipe. Dynamic pressure analysis is conducted, and dynamic simulation software is used to numerically simulate tight gas reservoirs to predict future gas well production and total production. The dynamic reserves of a gas well are calculated using simulation results from a dynamic model, measured data, and other parameters. In reserve calculation, uncertainties need to be considered, including uncertainties in geological parameters and production parameters. Sensitivity analysis and simulation are used to assess the impact of these uncertainties on reserve calculation. By analyzing the reserve calculation results, the gas reservoir development plan is optimized, including well network layout and adjustment of injection and production parameters.

[0016] The present invention has a reasonable and compact structure and is easy to use. By setting up an arc-shaped block, a push block and an electromagnet, the telescopic structure can contact the inner wall of the delivery pipe after the pressure sensor reaches the designated position, and quickly fix it in the delivery pipe. When the sensor needs to be removed, the telescopic structure can be retracted. It is quick and convenient to install and disassemble. Attached Figure Description

[0017] Appendix Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0018] Appendix Figure 2 For the appendix Figure 1 A partial cross-sectional view of the telescopic structure.

[0019] Appendix Figure 3 This is a cross-sectional structural diagram of the sealing mechanism.

[0020] Appendix Figure 4 This is a cross-sectional view of the arc-shaped block.

[0021] Appendix Figure 5 This is a cross-sectional view of the first roller.

[0022] Appendix Figure 6 This is a cross-sectional view of the connecting plate.

[0023] The codes in the attached diagram are as follows: 1. Pressure sensor; 2. Connector; 3. Wire; 4. Hollow rod; 5. Fixing rod; 6. Arc block; 7. Push block; 8. Electromagnet; 9. First mounting block; 10. First roller; 11. Rotating shaft; 12. Connecting rod; 13. Second roller; 14. Connecting pipe; 15. Conduit; 16. First cavity; 17. Push plate; 18. Second cavity; 19. Air inlet groove; 20. Slide groove; 21. Slider; 22. Sealing plate; 23. Drive rod; 24. Second control valve; 25. Air outlet groove; 26. Elastic ring; 27. Groove; 28. Air outlet; 29. ​​Top plate; 30. Rectangular frame; 31. Connecting plate; 32. Round hole; 33. Positioning plate; 34. Adjusting plate. Detailed Implementation

[0024] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0025] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0026] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1-6 As shown, the gas well dynamic reserve measurement device includes a pressure sensor 1 for measuring the pressure inside the well. A connector 2 is fixedly connected to the side wall of the pressure sensor 1, and a wire 3 is fixedly connected to the connector 2. Telescopic structures with identical structures are symmetrically installed on the left and right sides of the pressure sensor 1. The telescopic structure includes a hollow rod 4 fixedly connected to the outside of the pressure sensor 1. A fixed rod 5 is slidably connected inside the hollow rod 4. A first spring is fixedly connected between the fixed rod 5 and the inner wall of the hollow rod 4. A hollow arc-shaped block 6 is fixedly fixed to the outside of the pressure sensor 1. A push block 7 made of magnetic material is slidably connected inside the arc-shaped block 6. An electromagnet 8 that magnetically attracts the push block 7 is fixedly connected to the inner wall of the arc-shaped block 6. A second spring is fixedly connected between the push block 7 and the inner wall of the arc-shaped block 6. The arc-shaped block 6 is connected to the hollow rod 4 through a connecting pipe 14.

[0027] Pressure sensor 1 is used to monitor well pressure, including static and dynamic pressure, to assess and calculate the flow state and production of gas in the wellbore, thereby determining the dynamic reserves of tight gas reservoirs. In use, pressure sensor 1 is placed inside the delivery pipe, and then lowered using wire 3. After pressure sensor 1 is positioned correctly, electromagnet 8 is activated to attract push block 7, causing push block 7 to push the gas in arc-shaped block 6 from connecting pipe 14 into hollow rod 4. The gas in hollow rod 4 pushes fixing rod 5, causing fixing rod 5 to adhere and press against the inner wall of the delivery pipe, thus fixing pressure sensor 1 inside the delivery pipe. This mechanism allows for easy lowering and quick fixing of pressure sensor 1 inside the delivery pipe. To remove pressure sensor 1 from the delivery pipe, simply turn off electromagnet 8, causing the first spring to pull fixing rod 5 away from the inner wall of the delivery pipe. Then, pull wire 3 to remove pressure sensor 1 from the delivery pipe. This allows for quick fixing and removal of pressure sensor 1, shortening its installation and maintenance time.

[0028] The above-mentioned dynamic reserve measurement device for gas wells can be further optimized and / or improved according to actual needs: Example 2: As shown in the attached document Figure 2 As shown, a first mounting block 9 is fixedly connected to the outer end of the fixed rod 5. A rotating shaft 11 is rotatably connected to the first mounting block 9, and a first roller 10 is fixedly connected to the rotating shaft 11. When the pressure sensor 1 is lowered, the fixed rod 5 can be driven to move first, so that the first roller 10 contacts the inner wall of the conveying pipe, and then the pressure sensor 1 is lowered. At this time, the first roller 10 will roll to make the pressure sensor 1 fall smoothly.

[0029] Example 3: As shown in the attached document Figure 5As shown, a groove 27 is provided on the first mounting block 9 at the outer position of the rotating shaft 11. A hollow elastic ring 26 is fitted on the outer side of the rotating shaft 11. A top plate 29 is slidably installed on the inner side of the outer end of the mounting block 9. The inner end of the top plate 29 contacts the elastic ring 26. The first roller 10 is made of elastic material. When the pressure sensor 1 moves to the appropriate position, the gas in the arc-shaped block 6 enters the hollow rod 4. At this time, the attraction force of the electromagnet 8 can be increased, causing the fixing rod 5 to be pushed. The fixing rod 5 will then push the first roller 10 to deform, increasing the contact area with the pipe wall, thereby increasing the fixing effect on the pressure sensor 1. At the same time, the top plate 29 will be pushed by the pipe wall to squeeze the elastic ring 26. At this time, the elastic ring 26 will expand and cooperate with the groove 27, thereby fixing the rotating shaft 11. This prevents the first roller 10 from rolling inside the pipe wall for a long time, which would cause the pressure sensor 1 to move and affect the pressure measurement results in the well.

[0030] Example 4: As shown in the appendix Figure 5 As shown, the first roller 10 has a hollow internal structure and multiple sets of air vents 28 are provided on it. A rectangular frame 30 is rolled inside the first roller 10. When the first roller 10 is pushed by the hollow rod 4 and squeezed against the tube wall, the gas between the first roller 10 and the side wall of the rectangular frame 30 is squeezed out, thereby blowing away impurities from the tube wall and improving the fixing effect between the first roller 10 and the tube wall. At the same time, after being squeezed, the first roller 10 will contact the side wall of the rectangular frame 30. At this time, the rectangular frame 30 will limit the formation of the first roller 10 and increase the contact area with the tube wall.

[0031] Example 5: As shown in the attached document Figure 3 As shown, a connecting rod 12 is fixedly connected to the lower side of the pressure sensor 1. A rotating groove is provided at the bottom end of the connecting rod 12. A second roller 13 is rotatably connected in the rotating groove. A rotating mechanism for driving the second roller 13 to rotate is provided on the connecting rod 12. Because the delivery pipe is too long, some sections are horizontal rather than vertical, which affects the lowering of pressure sensor 1. During lowering, pressure sensor 1 is also prone to impacting the pipe wall. When encountering a horizontal delivery pipe, one of the two first rollers 10 loses contact with the pipe wall, causing pressure sensor 1 to tilt. At this point, one of the first rollers 10 and the second roller 13 will contact the pipe wall. The second roller 13 can then be driven to rotate using a drive mechanism, moving pressure sensor 1 until it reaches a vertical delivery pipe. The fixing rod 5 is then retracted into the hollow rod 4. The electromagnet 8 then attracts the pushing block, driving the hollow rod 4 to move, allowing the first roller 10 to contact the pipe wall. Pressure sensor 1 remains in the center of the pipe. The lowering process continues. This mechanism allows pressure sensor 1 to be lowered even in complex pipeline conditions.

[0032] Example 6: As shown in the appendix Figure 3 As shown, the rotating mechanism includes a drive rod 23 and a push plate 17. A second cavity 18 is provided in the middle of the connecting rod 12. A first cavity 16 with an opening facing downwards is provided on the connecting rod 12 on both the left and right sides of the second cavity 18. The upper parts of the two first cavities 16 are connected to the second cavity 18 through an air inlet groove 19. A sealing structure that can open the corresponding air inlet groove 19 is provided on the lower side of the pressure sensor 1 at the position of the connecting rod 12 and the connecting rod 12. The drive rod 23 is slidably connected to the lower inner side of the first cavity 16. A third spring is fixedly connected between the top surface of the drive rod 23 and the upper inner side of the first cavity 16. The push plate 17 is slidably connected to the lower inner side of the second cavity 18. A fourth spring is fixedly connected between the bottom surface of the push plate 17 and the lower inner side of the second cavity 18. A conduit 15 is connected between the second cavity 18 and the arc-shaped block 6. The second roller 13 is made of elastic material. When the second roller 13 needs to be driven, the air inlet 19 in the appropriate direction is used first. When it needs to move to the left, the left air inlet 19 is opened. Then, the attraction force of the electromagnet 8 to the push block 7 is intermittently increased and decreased, so that the push block 7 pushes the gas in the arc block 6 from the conduit 15 into the second cavity 18. At this time, the gas will push the push plate 17, and then push the gas above the push plate 17 from the air inlet 19 into the first cavity 16. After that, the gas will push the drive rod 23 to push the surface of the second roller 13. The second roller 13 will be squeezed and deformed first, and then roll under the action of the thrust, thereby driving the pressure sensor 1 to move in the pipeline, so as to achieve the effect of automatic movement of the pressure sensor 1.

[0033] Example 7: As attached Figure 3 As shown, the sealing mechanism includes a sealing plate 22 slidably connected to the connecting rod 12. The lower end of the sealing plate 22 can block the air inlet groove 19. The pressure sensor 1 is provided with a groove 20, and a slider 21 is provided in the groove 20. The slider 21 can slide in the groove 20. The top surface of the sealing plate 22 extends into the groove 20. A connecting line is fixedly connected between the side wall of the slider 21 and the top surface of the sealing plate 22. When the pressure sensor 1 is located on a horizontal pipeline, the pressure sensor 1 will tilt towards the side near the bend of the pipeline. At this time, the slider 21 will slide in the groove 20 and pull the connecting line. The connecting line will then pull the sealing plate 22 in the sealing groove that needs to be opened. Then, the driving rod 23 pushes the second roller 13 to move in the appropriate direction. The direction of movement of the pressure sensor 1 is controlled by the sealing mechanism.

[0034] Example 8: As attached Figure 4As shown, the arc-shaped block 6 and the pressure sensor 1 are equipped with corresponding air outlet grooves 25. A second control valve 24 is installed in the air outlet groove 25, and a first control valve is fixedly connected to both the conduit 15 and the connecting pipe 14. When the pressure sensor 1 is fixed in a suitable position, the first control valves on the conduit 15 and the connecting pipe 14 are closed, and the second control valve 24 is opened. Then, the push block 7 is repeatedly attracted by the electromagnet 8, thereby repeatedly pushing the gas in the arc-shaped block 6 into the air outlet groove 25. At this time, the gas will enter the pressure sensor 1 for cooling, thereby achieving the effect of heat dissipation for the pressure sensor 1.

[0035] Example 9: As attached Figure 6 As shown, a positioning plate 33 is provided above connector 2, and a connecting plate 31 is fixedly connected to the top surface of the positioning plate 33. Multiple sets of circular holes 32 are provided on the connecting plate 31. Adjusting plates 34 are slidably connected to both sides of the connecting plate 31. The adjusting plates 34 can be installed on the pipe wall by bolts. The wire 3 passes through the positioning plate 33 and the connecting plate 31. By adjusting the positioning plate 33 to contact the inner wall of the pipe port, and then installing the adjusting plate 34 inside the pipe with bolts, the connecting wire will move through the connecting plate 31 and the positioning plate 33 when the pressure sensor 1 is lowered, thus preventing the wire 3 from swinging and affecting the lowering of the pressure sensor 1. The circular holes 32 are used for natural gas discharge.

[0036] Example 10: As attached Figure 1-6 As shown, proceed as follows. Static data, including geological, lithological, porosity, and permeability data, are collected, and the gas reservoir structure is modeled through geological modeling. Dynamic data, including bottom hole pressure, production testing, and production data, are collected to analyze the dynamic performance of the gas reservoir. The bottom pressure data collection requires the pressure sensor 1 to be lowered into the pipeline. After the pressure sensor 1 is lowered to the appropriate position, the electromagnet 8 is used to attract the push block 7 to push the gas in the arc block 6 into the hollow rod 4. The gas will push the fixing rod 5, so that the fixing rod 5 is pressed against the inner wall of the delivery pipe, thus fixing the pressure sensor 1 in the delivery pipe. When it is necessary to remove the pressure sensor 1 from the delivery pipe, turn off the electromagnet 8 so that the first spring pulls the fixing rod 5 no longer in contact with the inner wall of the delivery pipe, and pull the wire 3 to remove the pressure sensor 1 from the delivery pipe. Dynamic pressure analysis is conducted, and dynamic simulation software is used to numerically simulate tight gas reservoirs to predict future gas well production and total production. The dynamic reserves of a gas well are calculated using simulation results from a dynamic model, measured data, and other parameters. In reserve calculation, uncertainties need to be considered, including uncertainties in geological parameters and production parameters. Sensitivity analysis and simulation are used to assess the impact of these uncertainties on reserve calculation. By analyzing the reserve calculation results, the gas reservoir development plan is optimized, including well network layout and adjustment of injection and production parameters.

[0037] The above method takes into account multiple factors such as geology, engineering and production, and can more accurately assess the dynamic reserves of tight gas reservoirs.

[0038] The above technical features constitute various embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A dynamic reserve measurement device for gas wells, characterized in that... The device includes a pressure sensor for measuring pressure inside the well. A connector is fixedly connected to the side wall of the pressure sensor, and a wire is fixedly connected to the connector. Extensive telescopic structures with identical structures are symmetrically installed on both sides of the pressure sensor. Each telescopic structure includes a hollow rod fixedly connected to the outside of the pressure sensor, a fixed rod slidably connected inside the hollow rod, and a first spring fixedly connected between the fixed rod and the inner wall of the hollow rod. A hollow arc-shaped block is fixedly attached to the outside of the pressure sensor, and a push block made of magnetic material is slidably connected inside the arc-shaped block. An electromagnet magnetically attracts the push block, and a second spring is fixedly connected between the push block and the inner wall of the arc-shaped block. The arc-shaped block is connected to the hollow rod through a connecting pipe.

2. The gas well dynamic reserve measurement device according to claim 1, characterized in that... A first mounting block is fixedly connected to the outer end of the fixed rod, a rotating shaft is rotatably connected to the first mounting block, and a first roller is fixedly connected to the rotating shaft.

3. The gas well dynamic reserve measurement device according to claim 2, characterized in that... The first mounting block on the outer side of the rotating shaft has a groove, and a hollow elastic ring is fitted on the outer side of the rotating shaft. A top plate is slidably mounted on the inner side of the outer end of the mounting block, and the inner end of the top plate contacts the elastic ring. The first roller is made of elastic material.

4. The gas well dynamic reserve measurement device according to claim 3, characterized in that... The first roller has a hollow structure inside and multiple sets of air vents are opened on the first roller. A rectangular frame is rolled inside the first roller.

5. The gas well dynamic reserve measurement device according to claim 1, 2, 3, or 4, characterized in that... A connecting rod is fixedly connected to the lower side of the pressure sensor. A rotating groove is provided at the bottom of the connecting rod. A second roller is rotatably connected in the rotating groove. A rotating mechanism for driving the second roller to rotate is provided on the connecting rod.

6. The gas well dynamic reserve measurement device according to claim 5, characterized in that... The rotating mechanism includes a drive rod and a push plate. A second cavity is provided in the middle of the connecting rod. A first cavity with an opening facing downwards is provided on the connecting rod on both sides corresponding to the second cavity. The upper parts of the two first cavities are connected to the second cavity through air inlet slots. A sealing mechanism that can open the corresponding air inlet slot is provided on the lower side of the pressure sensor and the connecting rod. A drive rod is slidably connected to the lower end of the first cavity. A third spring is fixedly connected between the top surface of the drive rod and the upper end of the first cavity. A push plate is slidably connected to the lower part of the second cavity. A fourth spring is fixedly connected between the bottom surface of the push plate and the lower end of the second cavity. A conduit is connected between the second cavity and the arc-shaped block. The second roller is made of elastic material.

7. The gas well dynamic reserve measurement device according to claim 6, characterized in that... The sealing mechanism includes a sealing plate that is slidably connected to the connecting rod. The lower end of the sealing plate can block the air inlet groove. The pressure sensor has a sliding groove with a slider that can slide within the groove. The top surface of the sealing plate extends into the groove, and a connecting line is fixedly connected between the side wall of the slider and the top surface of the sealing plate.

8. The gas well dynamic reserve measurement device according to claim 6 or 7, characterized in that... The arc-shaped block and the pressure sensor are equipped with corresponding air outlet grooves. A second control valve is installed in the air outlet groove, and a first control valve is fixedly connected to the conduit and the connecting pipe.

9. The gas well dynamic reserve measurement device according to claim 1, 2, 3, 4, 6, 7, or 8, characterized in that... A positioning plate is provided above the connector, and a connecting plate is fixedly connected to the top surface of the positioning plate. Multiple sets of round holes are opened on the connecting plate, and adjustment plates are slidably connected to both sides of the connecting plate. The adjustment plates can be installed on the pipe wall by bolts, and the wires pass through the positioning plate and the connecting plate.

10. A measurement method using the gas well dynamic reserves measurement device according to any one of claims 1-9, characterized in that... Perform the following steps. Static data, including geological, lithological, porosity, and permeability data, are collected, and the gas reservoir structure is modeled through geological modeling. Dynamic data, including bottom hole pressure, production testing, and production data, are collected to analyze the dynamic performance of the gas reservoir. The collection of bottom hole pressure data requires the pressure sensor to be lowered into the pipeline. After the pressure sensor is lowered to the appropriate position, the gas in the arc-shaped block is pushed into the hollow rod by the electromagnet attracting the pusher block. The gas will push the fixing rod, so that the fixing rod is pressed against the inner wall of the delivery pipe, thus fixing the pressure sensor in the delivery pipe. When it is necessary to remove the pressure sensor from the delivery pipe, turn off the electromagnet so that the first spring pulls the fixing rod no longer in contact with the inner wall of the delivery pipe, and pull the wire to remove the pressure sensor from the delivery pipe. Dynamic pressure analysis is conducted, and dynamic simulation software is used to numerically simulate tight gas reservoirs to predict future gas well production and total production. The dynamic reserves of a gas well are calculated using simulation results from a dynamic model, measured data, and other parameters. In reserve calculation, uncertainties need to be considered, including uncertainties in geological parameters and production parameters. Sensitivity analysis and simulation are used to assess the impact of these uncertainties on reserve calculation. By analyzing the reserve calculation results, the gas reservoir development plan is optimized, including well network layout and adjustment of injection and production parameters.

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