Comprehensive earthquake observation system for high-sulfur artesian well and use method of comprehensive earthquake observation system

Abstract

The invention relates to the technical field of earthquake monitoring, and particularly discloses a high-sulfur artesian well earthquake comprehensive observation system and a use method thereof. The invention aims to solve the technical problems that the dynamic water level observation is influenced by the pressure disturbance of a drainage pipeline and the traditional gas collection device is blocked during the self-flow well observation. The device comprises a drainage system, a gas collection system, a water temperature observation device and a dynamic water level observation device, natural discharge is achieved through a main drainage pipeline, a drainage buffer pool is arranged, a flowmeter is installed in a sunken mode, an exhaust pipe is arranged, and an auxiliary well pipe is connected with a communicating pipe to avoid bubble interference; the gas collection system adopts a cylindrical or umbrella-shaped natural gas collection device and is suitable for observation of different gases. According to the invention, the data quality and stability of dynamic water level, water temperature and gas observation can be improved, the technical problem of blockage of a traditional gas collection device is solved, and the earthquake monitoring capability of the high-sulfur self-flow well is enhanced.

Description

Technical Field

[0001] This invention relates to the field of earthquake monitoring technology, specifically to a comprehensive earthquake observation system for high-sulfur artesian wells. Background Technology

[0002] Earthquake-induced underground fluid observation includes physical quantity observations such as water level, water temperature, and flow rate, as well as chemical quantity observations such as radon, mercury, hydrogen, helium, and carbon dioxide. Observation targets include static water level observation wells, gravity flow observation wells, and observation springs. Gravity flow wells are wells in confined aquifers where the water head is higher than the wellhead and water can flow out naturally. These confined aquifers often originate from deep groundwater bodies, have higher water temperatures, and are rich in gases and trace elements. Some wells have high mineralization and sulfide content. They can be used to observe all physical and chemical quantities, and their dynamic water level sensitivity is higher. They can simultaneously respond to the coupling effects of pressure, flow, and temperature fields, making them more valuable for applications.

[0003] However, when comprehensive observations are carried out in artesian wells, the various observation items have mutual influence and constraints, and the technical complexity is far greater than that of ordinary static water level wells. The rationality of the design of the discharge system and gas collection system directly affects the quality of the observation data. Moreover, the hydrogeological background and fluid physicochemical properties of artesian wells in different regions vary significantly. Current specifications are difficult to directly guide the construction of standardized observation systems, and targeted technical design is required. Summary of the Invention

[0004] The purpose of this invention is to provide a high-sulfur artesian well seismic integrated observation system and its usage method that can solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] Preferably, it includes a discharge system, an air collection system, a water temperature monitoring device, and a dynamic water level monitoring device;

[0007] The discharge system includes a main discharge pipeline, a flow meter, a discharge buffer tank, a manual sampling port, and an auxiliary well pipe; the elevation of the end of the main discharge pipeline is not higher than the elevation of the flow control valve, and the discharge buffer tank is located at the outlet of the main discharge pipeline, with its bottom connected to a buried pipeline for outward discharge;

[0008] The gas collection system includes a gas observation device, and the dynamic water level observation device is used to monitor the dynamic water level of the gravity flow well.

[0009] Preferably, the flow meter is installed in a submerged manner on the main discharge pipeline, and an exhaust pipe is provided in front of the flow meter. A valve that can cut off the water flow and a bypass pipe are provided on the main discharge pipeline at the position corresponding to the flow meter. The manual sampling port is kept in a continuous water flow state and is equipped with a corrosion-resistant valve.

[0010] Preferably, the dynamic water level observation device includes a water level sensor, which is installed inside the auxiliary well pipe; the auxiliary well pipe is connected to the main well pipe through a connecting pipe, the height of which is lower than the height of the main discharge pipe; the water temperature observation device includes a water temperature sensor, which is installed inside the main well pipe.

[0011] Preferably, the gas observation device includes a natural gas collection device, which includes a cylindrical gas collection device and an umbrella-shaped gas collection device;

[0012] When observing gaseous mercury, a cylindrical gas collection device is used, which is installed in an open environment above the water surface inside the well.

[0013] When observing hydrogen or helium, a cylindrical gas collection device is used, which is installed below the water surface inside the well.

[0014] When observing radon, an umbrella-shaped gas collection device is used, which is installed in an open environment above the water surface of the spillway buffer pool.

[0015] Preferably, the distance between the auxiliary well pipe and the main well pipe is 1 to 2 meters, and the auxiliary well pipe is connected to the main well pipe through a connecting pipe; when air bubbles are escaping from the well water, the connecting pipe is an inclined connecting pipe with an inclination angle of 10°-45°; when no air bubbles are escaping from the well water, the connecting pipe is a horizontal connecting pipe.

[0016] Preferably, if the system includes a conventional gas collection device, the conventional gas collection device may include a gas collection pipeline branch, the interface of the gas collection pipeline branch is located below the main discharge pipeline, and the valve of the gas collection pipeline branch is made of corrosion-resistant material and is not a pure copper ball valve.

[0017] Preferably, the water temperature sensor is connected to an instrument signal line at its upper part for transmitting water temperature data to external devices; the cylindrical gas collecting device is provided with an instrument gas path interface for transmitting the collected gas to external devices.

[0018] Preferably, a pressure measuring tube is provided on the left side of the flow control valve for measuring the pressure in the pipeline; and an exhaust pipe in front of the flow meter is used to discharge the escaping gas in the pipeline.

[0019] Preferably, the cylindrical gas collection device includes a stainless steel main pipe, a stainless steel filter screen, and an externally threaded stainless steel tube, wherein the stainless steel filter screen and the stainless steel main pipe are welded at 30°.

[0020] The umbrella-shaped gas collection device includes a stainless steel gas collection section, a stainless steel connecting pipe, a drying pipe, and a silica gel pipe. The drying pipe is filled with anhydrous calcium chloride or color-changing silica gel.

[0021] A comprehensive seismic observation method for high-sulfur artesian wells includes the following steps:

[0022] S1. The well water is naturally discharged through the spillway buffer pool to ensure that the end of the main spillway is not higher than the elevation of the control valve, and the overflow mechanism is used to avoid the main spillway being affected when the underground discharge is blocked;

[0023] S2. A submerged flow meter is used to monitor the flow rate, and an exhaust pipe is installed in front of the flow meter;

[0024] S3. Place the water level sensor in the auxiliary well pipe to observe the dynamic water level. Connect the main and auxiliary well pipes through the connecting pipe. Select a horizontal or inclined connecting pipe depending on whether there are air bubbles in the well water.

[0025] S4. Use natural gas collection devices for gas observation. Select either a cylindrical or umbrella-shaped gas collection device according to the gas type, and choose the corresponding gas collection environment and gas collection method.

[0026] The beneficial effects of this invention are as follows:

[0027] This invention can improve the seismic observation quality of high-sulfur gravity flow wells. It solves the problems of accuracy and stability of dynamic water level observation, avoids interference from factors such as pressure at the back end of the main discharge pipeline and branch discharge pipeline, and avoids dependence on discharge pipelines by using natural gas collection methods. It can also solve the problem of blockage in traditional gas collection devices.

[0028] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the gravity flow well drainage pipeline of the present invention;

[0030] Figure 2 This is a schematic diagram of the integrated observation and leakage gas collection system of the present invention;

[0031] Figure 3 This is a schematic diagram of the cylindrical natural gas collection device of the present invention;

[0032] Figure 4 This is a schematic diagram of the top structure of the cylindrical natural gas collection device of the present invention;

[0033] Figure 5 This is a schematic diagram of the umbrella-shaped natural gas collection device of the present invention;

[0034] Figure 6 This is a top view of the bypass pipe installation of the flow meter of the present invention;

[0035] Figure 7 This is a schematic diagram of the data curve before the technical transformation of the Wuliying dynamic water level in this invention;

[0036] Figure 8This is a schematic diagram of the data curve after the technical modification of the Wuliying dynamic water level in this invention;

[0037] Figure 9 This is a schematic diagram showing the comparative observation of radon gas in Wuliying using natural and traditional gas collection methods according to the present invention.

[0038] Figure 10 This is a graph showing the shape of the observed data curves for radon and mercury gases after the modification according to the present invention.

[0039] In the diagram: 1-Flow meter; 2-Gas collection device; 3-Flow buffer tank; 4-Manual sampling port; 5-Secondary well pipe; 6-Flow control valve; 7-Main well pipe; 8-Radon gas; 9-Exhaust pipe; 10-Valve; 11-Bypass pipe; 12-Water level sensor; 13-Water temperature sensor; 14-Cylindrical gas collection device; 15-Umbrella-shaped gas collection device; 16-Inclined connecting pipe; 17-Instrument signal line; 18-Instrument gas interface; 19-Pressure measuring pipe; 20-Stainless steel main pipe; 21-Stainless steel filter screen; 22-Externally threaded stainless steel pipe; 23-Stainless steel gas collection section; 24-Stainless steel connecting pipe; 25-Drying pipe; 26-Silicone tubing. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] A high-sulfur gravity flow well seismic integrated observation system and its usage method, including a discharge system, a gas collection system, a water temperature observation device, and a dynamic water level observation device;

[0045] The drainage system is used to stabilize the head of the gravity flow well and discharge the well water. The gravity flow well is a well in which the head of the confined aquifer is higher than the wellhead, and the water can flow out naturally. The confined aquifers are mostly from deep groundwater bodies. Some well water has high mineralization, rich sulfide content, and high content of gas and trace elements. The drainage system includes a main drainage pipeline, a flow meter 1, a drainage buffer pool 3, an artificial sampling port 4, and an auxiliary well pipe 5. The elevation of the end of the main drainage pipeline is not higher than the elevation of the flow control valve 6. The drainage buffer pool 3 is set at the outlet of the main drainage pipeline, and its bottom is connected to the buried pipeline for external discharge. It is equipped with an overflow mechanism to ensure that the water in the drainage pool can overflow naturally when the buried external discharge is blocked, without affecting the drainage of the main drainage pipeline. The auxiliary well pipe 5 and the main well pipe 7 work together to prevent air bubbles from interfering with the dynamic water level observation.

[0046] The gas collection system is used to monitor at least one of the following gases in the artesian well: radon 8, mercury, hydrogen, and helium. It includes a gas observation device 2; a dynamic water level observation device is used to monitor the dynamic water level in the artesian well with an observation accuracy of mm; and a water temperature observation device is used to monitor the water flow temperature in the artesian well with an observation accuracy of 0.001℃.

[0047] Specifically, the flow meter 1 is installed in a submerged manner in the main discharge pipeline, which can achieve the design goal of no elevation at the rear end of the main discharge pipeline. An exhaust pipe 9 is provided in front of the flow meter 1 to ensure the water supply of the flow meter 1 without air bubbles. A valve 10 that can cut off the water flow and a bypass pipe 11 are provided on the main discharge pipeline at the position corresponding to the flow meter 1. The manual sampling port 4 is kept in a continuous water flow state to avoid changes in discharge pressure caused by valve opening and closing, which would affect the stability of the water level. It is also equipped with a corrosion-resistant valve, and the flow rate is controlled at 2 to 4 L / min.

[0048] Specifically, the dynamic water level observation device includes a water level sensor 12, which is installed inside the auxiliary well pipe 5. The auxiliary well pipe 5 is connected to the main well pipe 7 through a connecting pipe. The height of the connecting pipe is lower than the height of the main discharge pipe to prevent air bubbles in the main well pipe 7 from entering the auxiliary well pipe 5 and interfering with the observation. The water temperature observation device includes a water temperature sensor 13, which is installed inside the main well pipe 7 to monitor the water temperature in the gravity flow well. The water in the main well pipe 7 comes from deep underground and can accurately reflect the temperature state of the underground fluid.

[0049] Specifically, the gas observation device 2 includes a natural gas collection device, which includes a cylindrical gas collection device 14 and an umbrella-shaped gas collection device 15, wherein the top of the cylindrical gas collection device 14 has a perforation with a diameter of 8 mm.

[0050] Table 1 Natural Gas Gathering Parameters from Ziliujing Gas Observation

[0051] Parameter Items Gaseous mercury hydrogen helium Radon Gas collection device Cylindrical gas collection Cylindrical gas collection Cylindrical gas collection Umbrella-shaped gas collection Observation object Exhausted gas Exhaust gas + dissolved gas Exhaust gas + dissolved gas Dissolved gas + Exhaust gas Gas gathering environment Open environment underwater gas collection underwater gas collection Open environment Gas collection method Timely air extraction from the water surface inside the well. Underwater in wellbore Underwater in wellbore Air is periodically drawn from the surface of the spillway.

[0052] Specifically, the distance between the auxiliary well pipe 5 and the main well pipe 7 is 1 to 2 meters, and they are connected to the main well pipe 7 through a connecting pipe. When air bubbles are escaping from the well water, the connecting pipe is an inclined connecting pipe 16 with an inclination angle of 10°-45° to prevent air bubbles from entering the auxiliary well pipe 5. When no air bubbles are escaping from the well water, the connecting pipe is a horizontal connecting pipe to ensure smooth fluid flow between the main and auxiliary well pipes 5.

[0053] Specifically, if the system includes a traditional gas collection device, the traditional gas collection device includes gas collection pipeline branches. The gas collection pipeline branch interfaces are located below the main discharge pipeline. The valves of the gas collection pipeline branches are made of corrosion-resistant materials and are not pure copper ball valves. This is because when the well water is in a neutral or weakly alkaline environment (pH 7-9), sulfides are mainly in the form of HS⁻, which react with copper in a redox reaction. , First, cuprous sulfide Cu₂S is formed, which is brownish-black. It then reacts further with sulfides to form more stable CuS. Both sulfides are insoluble solids, and their superposition and deposition can easily cause narrowing of valve flow channels and sealing failure.

[0054] Specifically, the water temperature sensor 13 is connected to an instrument signal line 17 at its upper part, which is used to transmit the water temperature data to external devices; the cylindrical gas collection device 14 is provided with an instrument gas interface 18, which is used to transmit the collected gas to external devices.

[0055] Specifically, a pressure measuring tube 19 is provided on the left side of the flow control valve 6 to measure the pressure in the pipeline and directly reflect the pressure status of the gravity flow well; the exhaust pipe 9 in front of the flow meter 1 is used to discharge the escaping gas in the pipeline to avoid bubbles affecting the accuracy and working stability of the observation equipment.

[0056] Specifically, the cylindrical gas collection device 14 includes a stainless steel main pipe 20, a stainless steel filter screen 21, and an externally threaded stainless steel tube 22. The stainless steel filter screen 21 and the stainless steel main pipe 20 are welded at 30°.

[0057] The umbrella-shaped gas collection device 15 includes a stainless steel gas collection section 23, a stainless steel connecting pipe 24, a drying pipe 25, and a silica gel pipe 26. The drying pipe 25 is filled with anhydrous calcium chloride or color-changing silica gel. The stainless steel connecting pipe 24 has a diameter of 9.3 mm and a length of 200 mm. The stainless steel gas collection section 23 has a length of 300 mm.

[0058] A comprehensive seismic observation method for high-sulfur artesian wells includes the following steps:

[0059] S1. The well water is naturally discharged through the overflow buffer pool 3 to ensure that the end of the main discharge pipeline is not higher than the elevation of the control valve 6, and the overflow mechanism is used to avoid the main discharge being affected when the underground discharge is blocked;

[0060] S2. A submerged flow meter 1 is used to monitor the flow rate, and an exhaust pipe 9 is installed in front of the flow meter 1 to avoid air bubbles interfering with the flow rate observation;

[0061] S3. Place the water level sensor 12 inside the auxiliary well pipe 5 to observe the dynamic water level. Connect the main and auxiliary well pipes 7 through the connecting pipe. Select the horizontal or inclined connecting pipe 16 according to whether there are air bubbles in the well water to avoid air bubble interference.

[0062] S4. Use a natural gas collection device for gas observation. Select either a cylindrical gas collection device 14 or an umbrella-shaped gas collection device 15 according to the gas type, and select the corresponding gas collection environment and gas collection method.

[0063] Example 1

[0064] The Wuliying Artesian Well of the Beijing Earthquake Bureau was selected as the observation object. Its artesian well is a confined aquifer with a water head higher than the wellhead, and water can flow out naturally. The confined aquifer comes from deep groundwater bodies, and the well water has high mineralization, rich sulfide content, and high content of gas and trace elements.

[0065] The device includes a discharge system, a gas collection system, a water temperature monitoring device, and a dynamic water level monitoring device. The discharge system consists of a main discharge pipeline, a flow meter 1, a discharge buffer pool 3, a manual sampling port 4, and an auxiliary well pipe 5. The elevation of the end of the main discharge pipeline is not higher than the elevation of the flow control valve 6. The discharge buffer pool 3 is located at the outlet of the main discharge pipeline, and its bottom is connected to the underground pipeline for external discharge to the municipal drainage. The discharge buffer pool 3 is equipped with an overflow mechanism to ensure that the water in the discharge pool can overflow naturally without affecting the drainage of the main discharge pipeline when the underground discharge is blocked.

[0066] It includes the auxiliary well pipe 5 and the main well pipe 7. The distance between the auxiliary well pipe 5 and the main well pipe 7 is 1.5 meters. They are connected to the main well pipe 7 through a connecting pipe. Because there may be air bubbles escaping in the well water, the connecting pipe is an inclined connecting pipe 16 with an inclination angle of 30°, and the height of the connecting pipe is lower than the height of the main drain pipe.

[0067] It also includes a flow meter 1, which is installed in a submerged manner in the main discharge pipeline. An exhaust pipe 9 is installed before the submerged section of the flow meter 1. A valve 10 that can cut off the water flow and a bypass pipe 11 are provided on the main discharge pipeline at the position corresponding to the flow meter 1. The manual sampling port 4 is kept in a continuous water flow state and is equipped with a corrosion-resistant valve, with the flow rate controlled at 2-4 L / min. The water level sensor 12 of the dynamic water level observation device is installed in the auxiliary well pipe 5, and the water temperature sensor 13 of the water temperature observation device is installed in the main well pipe 7, which can realize the collection of gas and water temperature data.

[0068] The gas collection system includes natural gas collection devices. For mercury gas (8), a cylindrical gas collection device 14 is used, installed in an open environment above the water surface inside the wellbore. Gas is periodically pumped out to observe the escaping gas. For hydrogen gas, a cylindrical gas collection device 14 is used, installed below the water surface inside the wellbore to observe both escaping and dissolved gas, without the need for periodic pumping. For radon gas (8), an umbrella-shaped gas collection device 15 is used, installed in an open environment above the water surface of the spillway buffer pool 3. Gas is periodically pumped out to observe both dissolved and escaping gas. A pressure measuring pipe 19 is located on the left side of the flow control valve 6 to measure the pressure in the pipeline, directly reflecting the pressure status of the gravity flow well.

[0069] Example 2

[0070] The above-mentioned Wuliying artesian well was observed using the comprehensive seismic observation method for high-sulfur artesian wells. The specific steps are as follows:

[0071] S1. The well water is naturally discharged through the spillway buffer pool 3, ensuring that the end of the main spillway pipeline is not higher than the elevation of the flow control valve 6. The bottom of the spillway buffer pool 3 is grounded to the buried pipeline and discharged to the municipal drainage. The overflow mechanism can ensure that the water in the spillway pool can overflow naturally without affecting the drainage of the main spillway pipeline when the underground discharge is blocked.

[0072] S2. The flow meter 1 is installed in a sunken manner to monitor the flow. This installation method achieves the design goal of no elevation at the rear end of the main discharge pipeline. An exhaust pipe 9 is set in front of the flow meter 1. The exhaust pipe 9 is connected to the atmosphere to discharge the gas escaping in the pipeline, avoid the interference of air bubbles with the flow observation, and ensure the water supply of the flow meter 1 without air bubbles.

[0073] S3. Place the water level sensor 12 inside the auxiliary well pipe 5 to observe the dynamic water level. The distance between the auxiliary well pipe 5 and the main well pipe 7 is 1.5 meters. Connect the main and auxiliary well pipes 7 through a connecting pipe. Because there are air bubbles escaping from the well water, choose an inclined connecting pipe 16 with an inclination angle of 30° to prevent air bubbles in the main well pipe 7 from entering the auxiliary well pipe 5 and interfering with the observation, and to ensure the stability of the observation data.

[0074] S4. Natural gas collection devices are used for gas observation, without relying on drainage pipes for water collection. When observing mercury, a cylindrical gas collection device 14 is installed in an open environment above the water surface in the well, and gas is extracted periodically to observe the escaping gas. When observing hydrogen, a cylindrical gas collection device 14 is installed below the water surface in the well, and the escaping gas and dissolved gas are observed without the need for periodic gas extraction. When observing radon, an umbrella-shaped gas collection device 15 is installed in an open environment above the water surface in the drainage buffer pool 3, and the dissolved gas and escaping gas are extracted periodically. Fresh dissolved and escaping gas is extracted in each cycle to achieve real-time observation of target data.

[0075] Legend:

[0076] Figure 7 and Figure 8For application in the Wuliying observation well of the Beijing Earthquake Bureau, the accuracy of dynamic water level observation data was significantly improved after the technical upgrade in 2020. Figure 7 In the 2021 National Earthquake System Data Evaluation, the water level observation data of Wuliying and the water temperature observation data of the same well won the third prize and the second prize respectively. Figure 8 Therefore, it can be concluded that with the system of the present invention, the water temperature and water level (flow rate) of the gravity flow well respond synchronously, and while the accuracy of the water level data is improved, the quality of the water temperature data is also improved.

[0077] Figure 9 and Figure 10 To simultaneously monitor radon, mercury, and hydrogen at the Wuliying well, a technical upgrade in 2020 replaced the mercury and hydrogen monitoring with a natural gas collection method within the wellbore. In 2025, the natural radon collection method experiment was successful, enabling natural gas collection monitoring within the buffer pool. The natural gas collection device operates well, requiring no manual intervention for unblocking. Radon data is continuous, stable, and shows significant diurnal variation. Mercury observation data clearly shows the solid tide morphology. Figure 9 );in Figure 9 In the diagram, blue represents natural gas collection and red represents traditional gas collection, thus demonstrating that this invention has practical observational benefits.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A comprehensive seismic observation system for high-sulfur artesian wells, characterized in that, This includes a spillway system, an air collection system, a water temperature monitoring device, and a dynamic water level monitoring device; The discharge system includes a main discharge pipeline, a flow meter (1), a discharge buffer pool (3), a manual sampling port (4), and a secondary well pipe (5); the elevation of the end of the main discharge pipeline is not higher than the elevation of the flow control valve (6), and the discharge buffer pool (3) is located at the outlet of the main discharge pipeline, with its bottom connected to a buried pipeline for outward discharge; The gas collection system includes a gas observation device (2), and the dynamic water level observation device is used to monitor the dynamic water level of the gravity flow well.

2. The high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, The flow meter (1) is installed in the main discharge pipeline in a submerged manner. An exhaust pipe (9) is provided in front of the flow meter (1). A valve (10) that can cut off the water flow and a bypass pipe (11) are provided on the main discharge pipeline at the position corresponding to the flow meter (1). The manual sampling port (4) is kept in a continuous water flow state and is equipped with a corrosion-resistant valve.

3. The high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, The dynamic water level observation device includes a water level sensor (12), which is installed inside the auxiliary well pipe (5); the auxiliary well pipe (5) is connected to the main well pipe (7) through a connecting pipe, and the height of the connecting pipe is lower than the height of the main discharge pipe; the water temperature observation device includes a water temperature sensor (13), which is installed inside the main well pipe (7).

4. The high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, The gas observation device (2) includes a natural gas collection device, which includes a cylindrical gas collection device (14) and an umbrella-shaped gas collection device (15). When observing gaseous mercury, a cylindrical gas collection device is used, which is installed in an open environment above the water surface inside the well. When observing hydrogen or helium, a cylindrical gas collection device is used, which is installed below the water surface inside the well. When observing radon, an umbrella-shaped gas collection device is used, which is installed in an open environment above the water surface of the spillway buffer pool.

5. The high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, The distance between the auxiliary well pipe (5) and the main well pipe (7) is 1 to 2 meters, and they are connected to the main well pipe (7) through a connecting pipe. When there are air bubbles escaping from the well water, the connecting pipe is an inclined connecting pipe (16) with an inclination angle of 10°-45°. When there are no air bubbles escaping from the well water, the connecting pipe is a horizontal connecting pipe.

6. The high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, If the system includes a conventional gas collection device, the conventional gas collection device may include a gas collection pipeline branch, the interface of the gas collection pipeline branch is located below the main discharge pipeline, and the valve of the gas collection pipeline branch is made of corrosion-resistant material and is not a pure copper ball valve.

7. The high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, The water temperature sensor (13) is connected to an instrument signal line (17) at the top, which is used to transmit the water temperature data to external devices; the cylindrical gas collecting device (14) is provided with an instrument gas path interface (18), which is used to transmit the collected gas to external devices.

8. The high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, The left side of the flow control valve (6) is provided with a pressure measuring tube (19) for measuring the pressure in the pipeline; the exhaust pipe (9) in front of the flow meter (1) is used to discharge the gas escaping from the pipeline.

9. A high-sulfur artesian well seismic integrated observation system as described in claim 1, characterized in that, The cylindrical gas collection device (14) includes a stainless steel main pipe (20), a stainless steel filter screen (21) and an externally threaded stainless steel tube (22), wherein the stainless steel filter screen (21) and the stainless steel main pipe (20) are welded at 30°. The umbrella-shaped gas collection device (15) includes a stainless steel gas collection section (23), a stainless steel connecting pipe (24), a drying pipe (25), and a silica gel pipe (26). The drying pipe (25) is filled with anhydrous calcium chloride or color-changing silica gel.

10. A comprehensive seismic observation method for high-sulfur artesian wells, characterized in that, Includes the following steps: S1. The well water is naturally discharged through the spillway buffer pool (3) to ensure that the end of the main spillway is not higher than the elevation of the control valve (6), and the overflow mechanism is used to avoid the main spillway being affected when the underground discharge is blocked; S2. A submerged flow meter (1) is used to monitor the flow rate, and an exhaust pipe (9) is installed in front of the flow meter (1). S3. Place the water level sensor (12) inside the auxiliary well pipe (5) to observe the dynamic water level. Connect the main and auxiliary well pipes (7) through the connecting pipe. Select the horizontal or inclined connecting pipe (16) according to whether there are air bubbles in the well water. S4. Use a natural gas collection device for gas observation. Select either a cylindrical gas collection device (14) or an umbrella-shaped gas collection device (15) according to the gas type, and select the corresponding gas collection environment and gas collection method.

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