Improved equipment and method for tracer injection process

Abstract

The invention relates to the technical field of tertiary oil recovery development, and discloses tracer agent injection process equipment which comprises an injection station, a water distribution room valve group is arranged on one side of the injection station, and a preparation tank is arranged on the other side of the injection station; a water outlet of the water distribution room valve group is fixedly connected with one end of a high-pressure hose, the other end of the high-pressure hose is fixedly connected with a water inlet connector of a preparation tank, and the bottom end of the preparation tank is fixedly connected with the water inlet end of a handle type quick connector through a pipeline. The water outlet end of the handle type quick connector is fixedly connected with one end of the steel wire transparent hose, and the other end of the steel wire transparent hose is communicated with an inlet of the injection pump. By means of the method, the injection speed and pressure in the tracer agent injection process can be accurately controlled, in the injection process, the agent loss is small, operation is easy and convenient, safety and environment friendliness are achieved, construction can be completed in a station, continuous long-time injection can be achieved, the operation time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tertiary oil recovery development, in particular to an improved method for a tracer injection process. Background Art

[0002] Interwell tracing technology is one of the important means to study the connectivity of oil layers and the distribution of remaining oil. Due to the complexity of oil layers and their fluids, not only the selection of reagents is demanding, but also the injection process is very strict. First, the injection pressure and displacement should be as consistent as possible with the actual injection pressure and displacement to ensure that the liquid medicine is injected into the current liquid absorption layer. Second, the prepared solution should be fully dissolved and ensure continuous and stable injection. Third, the loss of reagents should be reduced as much as possible to ensure that the amount of injection meets the requirements of the plan.

[0003] During the tracer injection process, due to the short construction period (several hours to dozens of hours), the injection process is generally adopted, in which a tank truck is used to prepare the tracer on site, the cement truck is used to increase the pressure, and the tracer is injected from the wellhead to the wellbore.

[0004] The process of using tank trucks and cement trucks for injection has the following disadvantages:

[0005] First, due to the needs of the test, several different tracers are usually injected into a target area at the same time. In order to prevent the mixing of different tracers from affecting the accuracy of detection and analysis, different cement trucks and tank trucks must be cleaned during the injection process to avoid mixing with other tracers, which requires a large amount of clean water and injection time.

[0006] Secondly, in order to ensure that the injection layer is the liquid-absorbing layer during normal injection, the pressure and displacement during the injection process must be as close as possible to the normal injection pressure. However, in general, it is difficult to control the pressure during cement truck injection, and for wells with low injection volume, the injection speed and pressure are too high.

[0007] Third, the cement truck must be emptied before injection. When the liquid level in the injection tank is low, the operation must be stopped to prevent the pump from being emptied, which wastes a lot of reagents. At the same time, if the cement truck fails during operation, it will also cause a certain amount of reagent loss. Therefore, the amount of reagent is often increased when designing the plan, which is more expensive due to the high cost of the reagent.

[0008] Fourth, due to the limitations of the well site roads and station site environment, tracer injection can only be performed on a single well with the help of tank trucks and cement trucks. When multiple wells are required for testing, the original process is more time-consuming, labor-intensive and material-intensive.

[0009] Fifth, all water needs to be transported from other places, and it is difficult to prepare the medicine on site. Pipelines need to be connected and disassembled before and after each construction, which poses a safety hazard, and a certain amount of residual liquid is generated during construction, which is not conducive to environmental protection.

[0010] Based on the above analysis, the present invention provides an improved method for tracer injection process to address the deficiencies of the prior art. Summary of the invention

[0011] In view of the deficiencies in the prior art, the present invention provides an improved method for the tracer injection process, which solves the problems that the pressure and displacement in the existing tracer injection process cannot be accurately controlled, are easily restricted by the site and environment of the station, and cannot be tested on multiple wells within the station, resulting in reduced overall work efficiency.

[0012] To achieve the above objectives, the present invention is implemented through the following technical solutions: A tracer injection process equipment comprises an injection station, a water distribution room valve group is arranged on one side of the injection station, and a preparation tank is arranged on the other side of the injection station;

[0013] The water outlet of the water distribution room valve group is fixedly connected to one end of the high-pressure hose, the other end of the high-pressure hose is fixedly connected to the water inlet interface of the preparation tank, the bottom end of the preparation tank is fixedly connected to the water inlet end of the plate-handle quick connector through a pipeline, the water outlet end of the plate-handle quick connector is fixedly connected to one end of the steel wire transparent hose, and the other end of the steel wire transparent hose is connected to the injection pump inlet;

[0014] A water inlet interface is fixedly installed on one side of the preparation tank, a flushing and stirring pump is fixedly installed on the other side of the preparation tank, an injection pump is fixedly installed on the middle of the bottom end of the preparation tank, and a feeding port is fixedly installed on the top of the preparation tank. By utilizing the on-site high-pressure injection water, the tracer solution is prepared in the stainless steel water tank, i.e., in the preparation tank, through a pressure reducing device, and then the flushing and stirring pump is used for circulation to fully mix the agent and water. The fully mixed mixed agent enters the injection pump for pressurization and is injected into the target well.

[0015] Preferably, a regulating valve 1 is fixedly installed at the connecting interface between the water distribution room valve group and the high-pressure hose, a regulating valve 2 is fixedly installed at the connecting interface between the high-pressure hose and the preparation tank, a ball valve 1 is arranged between the regulating valve 1 and the regulating valve 2, and the ball valve 1 is fixedly installed on the outside of the high-pressure hose.

[0016] Preferably, the water outlet of the preparation tank is connected to the water inlet of the injection pump, the water outlet of the injection pump is fixedly connected to the water inlet of the plate-handle quick connector through a pipeline, and a ball valve 2 is fixedly installed on the pipeline.

[0017] Preferably, the water outlet of the flushing stirring pump is connected to the lower part of one side of the preparation tank through a pipeline, and the water outlet of the flushing stirring pump is connected to the upper part of one side of the preparation tank through a pipeline.

[0018] Preferably, an injection monitoring system is provided in the injection station, and the injection monitoring system includes a central control terminal, a valve opening and closing feedback module, a reagent injection feedback module, a circulation mixing preparation module, and an injection displacement detection module; the central control terminal is respectively connected to the valve opening and closing feedback module, the reagent injection feedback module, and the circulation mixing preparation module, for integrating the control of the operation of each module and information feedback; the valve opening and closing feedback module is used to monitor the valve opening and closing status in the entire tracer injection process, and to provide real-time data feedback; the reagent injection feedback module is used to monitor the injection amount of the reagent and water, and also to provide real-time data feedback and recording; the circulation mixing preparation module is used to carry out a circulating dissolution and mixing treatment on the injected water and reagent; the injection displacement detection module is used to monitor and record the injection amount of the mixed tracer and the injection water pressure.

[0019] Preferably, the valve opening and closing feedback module includes a regional valve monitoring unit, an operation inspection unit, a display alarm unit, a data integration and packaging unit, and a cloud data storage unit; the regional valve monitoring unit is used to monitor and control the flow-through valves used for the injected water and the discharged tracer; the operation inspection unit is used to perform scheduled and irregular inspections on the regional valves in use, and the number of monitoring times during the valve operation stage is increased to two to three times the number of normal monitoring times; the display alarm unit is used to alarm for valve conditions in abnormal states and connect maintenance personnel for maintenance; the data integration and packaging unit is used to statistically package and transmit various valve data during the use of the tracer injection process equipment within the cycle; the cloud data storage unit stores the packaged valve data in the cloud for subsequent tracing.

[0020] Preferably, the medicine injection feedback module includes a medicine injection unit, an injection type selection unit, a medicine quantitative monitoring unit, a medicine remaining warning unit, a metering and recording unit, and a cost estimation unit; the medicine injection unit is used to issue an alarm for abnormal conditions in the medicine injection process; the injection type selection unit is used to select the medicine injection type, mainly one of spraying, powder-liquid mixture, powder, and pre-built-in injection; the medicine quantitative monitoring unit is used to monitor the medicine injection volume and stop it in time after reaching the standard; the medicine remaining warning unit is used to monitor the remaining amount of the medicine and issue an alarm when the remaining amount is insufficient; the metering and recording unit is used to record the actual usage of the medicine and make real-time statistical reports; the cost estimation unit is used to make cost budgets and actual expenses based on the usage of the medicine.

[0021] Preferably, the circulating mixing preparation module includes a preparation tank unit, a medicine input interface unit, a water injection interface unit, and a circulating dissolution and stirring unit; the preparation tank unit is used as a mixing container for the medicine and water in the tracer; the medicine input interface unit is used to seal and connect the injection of medicine; the water injection interface unit is used to seal and connect the injection of water; the circulating dissolution and stirring unit is used for circulating mixing, dissolving and stirring of water and medicine.

[0022] Preferably, the injection displacement detection module includes a displacement outlet unit, a displacement monitoring unit, a water pressure monitoring unit, and a discharge port protection fixing unit; the displacement outlet unit is used to connect the target injection inlet to discharge the tracer; the displacement monitoring unit is used to monitor the tracer displacement and record and collect data; the water pressure monitoring unit is used to monitor the tracer displacement water pressure, and synchronously record and collect data; the discharge port protection fixing unit is used to perform external protective sealing on the displacement outlet unit.

[0023] A method for improving a tracer injection process, using the tracer injection process equipment, comprises the following steps:

[0024] Step 1: Build an on-site high-pressure water injection channel through the water distribution room valve group, regulating valve 1, high-pressure hose, ball valve 1, and regulating valve 2 to inject high-pressure water into the preparation tank;

[0025] Step 2: prepare the tracer solution in a stainless steel water tank, i.e., a preparation tank, through a decompression device, add a quantitative reagent and mix it with the injection water of step 1, and then use a flushing stirring pump to circulate the reagent and water to fully mix them, thereby completing the preparation of the mixed reagent;

[0026] Step 3: After the fully mixed mixed reagents are pressurized by the injection pump, they are injected into the target well through the injection pump inlet via ball valve 2, plate-handle quick connector, and steel wire transparent hose. During the process, the monitoring process of the injection monitoring system is used to complete the injection operation.

[0027] The present invention provides an improved method for tracer injection process, which has the following beneficial effects:

[0028] 1. The present invention can ensure that the pressure and displacement during the tracer injection process can be accurately controlled, and is not limited by the site and environment of the station. Multiple wells can be tested within the station, saving time and improving work efficiency.

[0029] 2. The present invention can reduce the loss of reagents during the tracer injection construction process and save reagent costs.

[0030] 3. The process of the present invention is simple, easy to operate, can be used repeatedly, and is more in line with safety and environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is the design diagram of the injection station of the present invention;

[0032] Figure 2 This is a schematic diagram of tracer injection and monitoring wells in the small well spacing polymer flooding field test area of ​​the 3rd layer of the Pu I in the Xing 10th to 12th zones of the present invention.

[0033] Figure 3 It is a schematic diagram of the injection monitoring system architecture of the present invention;

[0034] Figure 4 This is a schematic diagram of the valve opening and closing feedback module architecture of the present invention;

[0035] Figure 5 This is a schematic diagram of the drug injection feedback module architecture of the present invention;

[0036] Figure 6 This is a schematic diagram of the cyclic mixing preparation module architecture of the present invention;

[0037] Figure 7 It is a schematic diagram of the injection displacement detection module architecture of the present invention.

[0038] Among them, 1. Injection station; 2. Water distribution room valve group; 3. Regulating valve 1; 4. High-pressure hose; 5. Ball valve 1; 6. Regulating valve 2; 7. Preparation tank; 8. Flushing mixing pump; 9. Ball valve 2; 10. Plate-handle quick connector; 11. Steel wire transparent hose; 12. Injection pump inlet. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] According to one aspect of the present invention, please refer to the attached Figure 1 , an embodiment of the present invention provides a tracer injection process equipment, including an injection station 1, a water distribution room valve group 2 is provided on one side of the injection station 1, and a preparation tank 7 is provided on the other side of the injection station 1;

[0041] The water outlet of the water distribution room valve group 2 is fixedly connected to one end of the high-pressure hose 4, the other end of the high-pressure hose 4 is fixedly connected to the water inlet interface of the preparation tank 7, the bottom end of the preparation tank 7 is fixedly connected to the water inlet end of the plate-handle type quick connector 10 through a pipeline, the water outlet end of the plate-handle type quick connector 10 is fixedly connected to one end of the steel wire transparent hose 11, and the other end of the steel wire transparent hose 11 is connected to the injection pump inlet 12;

[0042] A water inlet interface is fixedly installed on one side of the preparation tank 7, a flushing and stirring pump 8 is fixedly installed on the other side of the preparation tank 7, an injection pump is fixedly installed on the middle of the bottom end of the preparation tank 7, and a feeding port is fixedly installed on the top of the preparation tank 7. By utilizing the on-site high-pressure injection water, the tracer solution is prepared in the stainless steel water tank, i.e., the preparation tank 7, through the pressure reducing device, and then the flushing and stirring pump 8 is used to circulate the agent and the water to fully mix. The fully mixed mixed agent enters the injection pump and is pressurized and injected into the target well.

[0043] Compared with the prior art, the improved method of the tracer injection process provided by the present invention can accurately control the injection speed and pressure during the injection process, with small agent loss during the injection process, simple operation, safety and environmental protection, and the construction can be completed within the station, and continuous injection for a long time can be achieved.

[0044] In this embodiment, a regulating valve 3 is fixedly installed at the connecting interface between the water distribution room valve group 2 and the high-pressure hose 4, and a regulating valve 2 6 is fixedly installed at the connecting interface between the high-pressure hose 4 and the preparation tank 7. A ball valve 5 is arranged between the regulating valve 1 3 and the regulating valve 2 6, and the ball valve 5 is fixedly installed on the outside of the high-pressure hose 4.

[0045] Specifically, an on-site high-pressure water injection channel is built through the water distribution room valve group 2, regulating valve 1 3, high-pressure hose 4, ball valve 1 5, and regulating valve 2 6 to facilitate the injection of mixed water into the preparation tank 7.

[0046] The water outlet of the preparation tank 7 in this embodiment is connected to the water inlet of the injection pump, and the water outlet of the injection pump is fixedly connected to the water inlet of the plate-handle quick connector 10 through a pipeline, and a ball valve 9 is fixedly installed on the pipeline.

[0047] Specifically, the injection pump is used for pressurized transportation, and the steel wire transparent hose 11 is quickly connected through the plate-handle type quick connector 10, and the ball valve 29 is used to control and regulate the mixed tracer.

[0048] The water outlet of the flushing stirring pump 8 in this embodiment is connected to the lower part of one side of the preparation tank 7 through a pipeline, and the water outlet of the flushing stirring pump 8 is connected to the upper part of one side of the preparation tank 7 through a pipeline.

[0049] Specifically, the mixed medicine in the preparation tank 7 is circulated, dissolved and mixed by using the impulse stirring pump 8, so that the mixed medicine is mixed more fully.

[0050] See attached Figure 2 , the specific implementation plan is given below, which specifically includes the following:

[0051] 1. Implementation Plan:

[0052] The tracer injection plan for the small well spacing polymer flooding test area in the 3rd layer of Pu I in the Xing 10th to 12th area requires the injection of tracers in 5 wells and the injection of 6 types of tracers (7 injections).

[0053] 2. Benefit evaluation:

[0054] Only the cost of injecting tracers in the small well spacing polymer flooding test area of ​​Pu I 3 layer in Xing 10-12 area is calculated and evaluated.

[0055] 1. Equipment cost: The equipment construction cost is 50,000 yuan. Considering the reuse of equipment, the anti-corrosion performance of the material is taken into consideration when selecting materials.

[0056] 2. Cost saving: The tracer cost is about 1.5 million yuan. The loss can be reduced by 5% during the injection process, which can reduce the loss of reagents by 75,000 yuan, and the investment can be recovered in one go. The cost of cement trucks and tank trucks is saved by about 45,000 yuan.

[0057] 3. Implementation effect: By adopting this injection process, this test can save 70,000 yuan. At the same time, the equipment can continue to be used after this test.

[0058] According to another aspect of the present invention, please refer to the attached Figure 3-7 The embodiment of the present invention provides a tracer injection process equipment, wherein an injection monitoring system is arranged in an injection station (1), and the injection monitoring system comprises a central control terminal, a valve opening and closing feedback module, a reagent injection feedback module, a circulation mixing preparation module, and an injection displacement detection module; the central control terminal is respectively connected to the valve opening and closing feedback module, the reagent injection feedback module, and the circulation mixing preparation module, and is used to integrate and control the operation of each module and information feedback; the valve opening and closing feedback module is used to monitor the valve opening and closing state in the entire tracer injection process, and to provide real-time data feedback; the reagent injection feedback module is used to monitor the injection amount of the reagent and water, and also to provide real-time data feedback and recording; the circulation mixing preparation module is used to perform a circulation dissolution mixing process on the injected water and reagent; the injection displacement detection module is used to monitor and record the injection amount of the mixed tracer and the injection water pressure.

[0059] The valve opening and closing feedback module in this embodiment includes a regional valve monitoring unit, an operation inspection unit, a display alarm unit, a data integration and packaging unit, and a cloud data storage unit; the regional valve monitoring unit is used to monitor and control the flow-through valves used for the injected water and the discharged tracer; the operation inspection unit is used to perform scheduled and irregular inspections on the regional valves in use, and the number of monitoring times during the valve operation stage is increased to two to three times the normal monitoring times; the display alarm unit is used to alarm the valve in an abnormal state and connect the maintenance personnel for maintenance; the data integration and packaging unit is used to statistically package and transmit various valve data during the use of the tracer injection process equipment within the cycle; the cloud data storage unit stores the packaged valve data in the cloud for subsequent tracing.

[0060] Specifically, by utilizing the valve opening and closing feedback module to monitor various valve states and perform inspections during use, better service can be provided for the tracer injection process equipment to ensure smooth water injection.

[0061] The medicine injection feedback module in this embodiment includes a medicine injection unit, an injection type selection unit, a medicine quantitative monitoring unit, a medicine remaining warning unit, a metering and recording unit, and a cost estimation unit; the medicine injection unit is used to issue an alarm for abnormal conditions in the medicine injection process; the injection type selection unit is used to select the medicine injection type, mainly one of spraying, powder-liquid mixture, powder, and pre-built-in injection; the medicine quantitative monitoring unit is used to monitor the medicine injection volume and stop it in time after reaching the standard; the medicine remaining warning unit is used to monitor the remaining amount of the medicine and issue an alarm when the remaining amount is insufficient; the metering and recording unit is used to record the actual usage of the medicine and make real-time statistical reports; the cost estimation unit is used to make cost budgets and actual expenses based on the usage of the medicine.

[0062] Specifically, the medicine injection feedback module can provide information on the injection volume, injection type, remaining amount reminder, and cost estimation of the medicine, so as to better plan the usage of the medicine and save economic costs.

[0063] The circulating mixing and preparation module in this embodiment includes a preparation tank unit, a medicine interface unit, a water injection interface unit, and a circulating dissolution and stirring unit; the preparation tank unit is a mixing container for the medicine and water in the tracer; the medicine interface unit is used to seal and connect the injection of medicine; the water injection interface unit is used to seal and connect the injection of water; the circulating dissolution and stirring unit is used for circulating mixing, dissolving and stirring of water and medicine.

[0064] Specifically, the medicine is fully stirred through the medicine input interface, water injection interface, and circulating dissolution stirring in the circulating mixing preparation module to ensure that the tracer is mixed evenly.

[0065] The injection displacement detection module in this embodiment includes a displacement outlet unit, a displacement monitoring unit, a water pressure monitoring unit, and a discharge port protection fixing unit; the displacement outlet unit is used to connect the target injection inlet to discharge the tracer; the displacement monitoring unit is used to monitor the tracer displacement and record and collect data; the water pressure monitoring unit is used to monitor the tracer displacement water pressure, and synchronously record and collect data; the discharge port protection fixing unit is used to perform external protection and sealing on the displacement outlet unit.

[0066] Specifically, the discharge volume of the discharged tracer and the drainage pressure are monitored through the injection displacement detection module, which is convenient for regulation and change to adapt to different injection scenarios.

[0067] Based on the above-mentioned tracer injection process equipment, an embodiment of the present invention provides an improved method for the tracer injection process, comprising the following steps:

[0068] Step 1: Build a high-pressure water injection channel on site through the water distribution room valve group 2, regulating valve 1 3, high-pressure hose 4, ball valve 1 5, and regulating valve 2 6, and inject high-pressure water into the preparation tank 7;

[0069] Step 2: prepare a tracer solution in a stainless steel water tank, i.e., a preparation tank 7, through a decompression device, add a quantitative agent and mix it with the injection water of step 1, and then use a flushing stirring pump 8 to circulate the agent and water to fully mix them, thereby completing the preparation of the mixed agent;

[0070] Step 3: After the fully mixed mixed reagent is pressurized by the injection pump, it is injected into the target well through the injection pump inlet 12 through the ball valve 2 9, the plate-handle quick connector 10, and the steel wire transparent hose 11. During this process, the monitoring process of the injection monitoring system is coordinated to complete the injection operation.

[0071] To sum up the above analysis, the improved method of the tracer injection process provided by the present invention can ensure that the pressure and displacement can be accurately controlled during the tracer injection process, and is not limited by the site and environment of the station. At the same time, multiple wells can be tested in the station, which saves time and improves work efficiency. It can also reduce the loss of reagents during the tracer injection construction process and save reagent costs. The overall process is simple, easy to operate, can be used repeatedly, and is more in line with safety and environmental protection requirements.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tracer injection process device, comprising an injection station (1), characterized in that: A water distribution room valve group (2) is provided on one side of the injection station (1), and a preparation tank (7) is provided on the other side of the injection station (1); The water outlet of the water distribution room valve group (2) is fixedly connected to one end of a high-pressure hose (4), the other end of the high-pressure hose (4) is fixedly connected to the water inlet interface of the preparation tank (7), the bottom end of the preparation tank (7) is fixedly connected to the water inlet end of a plate-handle type quick connector (10) through a pipeline, the water outlet end of the plate-handle type quick connector (10) is fixedly connected to one end of a steel wire transparent hose (11), and the other end of the steel wire transparent hose (11) is connected to the injection pump inlet (12); A water inlet interface is fixedly installed on one side of the preparation tank (7), a flushing and stirring pump (8) is fixedly installed on the other side of the preparation tank (7), a polymer injection pump is fixedly installed in the middle of the bottom end of the preparation tank (7), and a feeding port is fixedly installed on the top end of the preparation tank (7). By using high-pressure water injection on site, a tracer solution is prepared in a stainless steel water tank, i.e., in the preparation tank (7) through a pressure reducing device, and then the flushing and stirring pump (8) is used to circulate so that the agent and water are fully mixed. The fully mixed mixed agent enters the polymer injection pump and is pressurized and injected into the target well.

2. A tracer injection process equipment according to claim 1, characterized in that: A regulating valve 1 (3) is fixedly installed at the communication interface between the water distribution room valve group (2) and the high-pressure hose (4), and a regulating valve 2 (6) is fixedly installed at the communication interface between the high-pressure hose (4) and the preparation tank (7). A ball valve 1 (5) is arranged between the regulating valve 1 (3) and the regulating valve 2 (6), and the ball valve 1 (5) is fixedly installed on the outside of the high-pressure hose (4).

3. A tracer injection process equipment according to claim 1, characterized in that: The water outlet of the preparation tank (7) is connected to the water inlet of the injection pump, and the water outlet of the injection pump is fixedly connected to the water inlet of the plate-handle quick connector (10) through a pipeline, and a second ball valve (9) is fixedly installed on the pipeline.

4. A tracer injection process equipment according to claim 1, characterized in that: The water outlet of the flushing stirring pump (8) is communicated with the lower part of one side of the preparation tank (7) through a pipeline, and the water outlet of the flushing stirring pump (8) is communicated with the upper part of one side of the preparation tank (7) through a pipeline.

5. The tracer injection process equipment according to claim 1, characterized in that: The injection station (1) is provided with an injection monitoring system, which includes a central control terminal, a valve opening and closing feedback module, a medicine injection feedback module, a circulation mixing preparation module, and an injection displacement detection module; The central control terminal is respectively connected with the valve opening and closing feedback module, the reagent injection feedback module, and the circulating mixing preparation module, and is used to integrate the control of the operation of each module and information feedback; the valve opening and closing feedback module is used to monitor the valve opening and closing status during the entire tracer injection process, and to provide real-time data feedback; the reagent injection feedback module is used to monitor the injection amount of reagents and water, and also to provide real-time data feedback and recording; The circulating mixing and preparation module is used to carry out a circulating dissolving and mixing process on the injected water and the reagent; The injection displacement detection module is used to monitor and record the injection volume of the mixed tracer and the injection water pressure.

6. A tracer injection process equipment according to claim 5, characterized in that: The valve opening and closing feedback module includes a regional valve monitoring unit, an operation inspection unit, a display alarm unit, a data integration and packaging unit, and a cloud data storage unit; The regional valve monitoring unit is used to monitor and control the flow-through valves used by the injected water and the discharged tracer; The operation inspection unit is used to perform scheduled and irregular inspections on the valves in each area, and the number of monitoring times during the valve operation phase is increased to two to three times the normal monitoring times; The display alarm unit is used to alarm the abnormal valve status and connect the maintenance personnel to perform maintenance; The data integration and packaging unit is used to statistically package and transmit various valve data during the applicable process of the tracer injection process equipment within the cycle; The cloud data storage unit stores the packaged valve data in the cloud for later tracing.

7. The tracer injection process equipment according to claim 5, characterized in that: The medicine injection feedback module includes a medicine injection unit, an injection type selection unit, a medicine quantitative monitoring unit, a medicine remaining warning unit, a metering recording unit, and a cost estimation unit; The medicine injection unit is used to generate an alarm for abnormal conditions during the medicine injection process; The injection type selection unit is used to select the medicine injection type, mainly one of spraying, powder-liquid mixture, powder, and pre-built-in injection; The medicine quantitative monitoring unit is used to monitor the amount of medicine injected and stop the injection in time after reaching the standard; The medicine remaining amount warning unit is used to monitor the remaining amount of medicine and to warn when the remaining amount is insufficient; The metering and recording unit is used to record the actual amount of medicine used and to make real-time statistical reports; The cost estimation unit is used to perform cost budgeting and actual expenditure according to the dosage of the medicine.

8. The tracer injection process equipment according to claim 5, characterized in that: The circulating mixing preparation module includes a preparation tank unit, a medicine input interface unit, a water injection interface unit, and a circulating dissolution stirring unit; The preparation tank unit is used as a mixing container for the medicine and water in the tracer; The medicine entry interface unit is used for sealing and connecting medicine injection; The water injection interface unit is used for sealing and connecting water injection; The circulating dissolving and stirring unit is used for circulating, mixing, dissolving and stirring water and medicine.

9. The tracer injection process equipment according to claim 5, characterized in that: The injection displacement detection module includes a displacement outlet unit, a displacement monitoring unit, a water pressure monitoring unit, and a discharge outlet protection fixing unit; The displacement outlet unit is used to connect the target injection inlet to discharge the tracer; The displacement monitoring unit is used to monitor the tracer displacement and record and collect data; The water pressure monitoring unit is used to monitor the tracer displacement water pressure, synchronize and record data collection; The discharge port protection fixing unit is used to perform external protection and sealing on the discharge outlet unit.

10. A method for improving a tracer injection process, using a tracer injection process equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: construct an on-site high-pressure water injection channel through the water distribution room valve group (2), regulating valve 1 (3), high-pressure hose (4), ball valve 1 (5), and regulating valve 2 (6), and inject high-pressure water into the preparation tank (7); Step 2: prepare a tracer solution in a stainless steel water tank, i.e., a preparation tank (7), by means of a decompression device, add a quantitative reagent and mix it with the injection water of step 1, and then use a flushing stirring pump (8) to circulate the reagent and water to fully mix them, thereby completing the preparation of the mixed reagent; Step 3: After the fully mixed mixed reagent is pressurized by the injection pump, it is injected into the target well through the injection pump inlet (12) via the ball valve 2 (9), the plate handle type quick connector (10), and the steel wire transparent hose (11). During this process, the monitoring process of the injection monitoring system is coordinated to complete the injection operation.

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