Full-automatic measurement and control system and method for drilling water pressure test

Abstract

The full-automatic measurement and control system comprises a water storage tank, a control box and a mobile terminal App, one end of the water storage tank is connected with a water pump, the other end of the water storage tank is connected with a water injection pipeline of a drilling machine through a water supply pipeline, and an electric control valve, a flow meter and a pressure transmitter are installed on the water supply pipeline; an intelligent controller and a communication controller are installed in the control box, the intelligent controller is connected with the electric adjusting valve, the flow meter and the pressure transmitter, and the communication controller is connected with the intelligent controller. Intelligent controller software is arranged in the intelligent controller, and the intelligent controller is used for collecting pressure and flow data on the water supply pipeline in real time, controlling the electric control valve to act, transmitting the collected pressure and flow data to the mobile terminal App and receiving and executing a control instruction from the mobile terminal App at the same time; and the mobile terminal App performs data interaction with the communication controller and is used for starting or terminating the water pressure test and displaying the current test stage and pressure and flow process data in real time.

Description

Technical Field

[0001] The present invention relates to the field of borehole water pressure tests in engineering geological surveys, and particularly to a fully automatic measurement and control system and method for borehole water pressure tests. Background Art

[0002] The borehole water pressure test is an in-situ test for understanding the fracture development and permeability of rock masses based on the water absorption of rock masses. During the drilling process or after the borehole is completed, a specific length of the borehole test section is isolated using special water-stop equipment, and then water is injected into this section of the borehole at a certain pressure with a fixed water head. The water penetrates into the rock mass through the fractures around the borehole wall, and finally the penetrated water volume will tend to a stable value. Under different water injection pressures, by recording the pressure and flow relationship data, a pressure and flow curve (P-Q curve) is plotted, and further the permeability rate of the rock mass in the test section of the borehole is calculated, providing basic geological data for evaluating the permeability of the rock mass and designing seepage control measures.

[0003] Currently in China, the five-point method with three levels of pressure and five stages (i.e., P1→P2→P3→P4(=P2)→P5(=P1), P1<P2<P3) is usually adopted for the test, and the conventional pressure values are: P1 = 0.3 Mpa, P2 = 0.6 Mpa, P3 = 1.0 Mpa. The equipment for borehole water pressure tests mainly includes a water supply pump, a mechanical pressure gauge, a flow meter, valves, etc. Conventional water pressure tests usually adopt an artificial method, that is, the operator manually adjusts the valve according to the value on the mechanical pressure gauge to control the water flow rate so as to control the water injection pressure in the borehole. After the pressure tends to the set value, the data on the flow meter is manually recorded. At present, there are also automated water pressure test devices on the market, but they only record the pressure and flow data at each stage and do not perform automatic control of the valves, and cannot fully automate the processing of the water pressure test data in all test stages.

[0004] In summary, the existing water pressure test systems have the following problems: (1) The water supply pump generally adopts a compound pump, which has a large water output flow and high pressure, but lacks a stable pressure adjustment mechanism, resulting in unstable flow and pressure during the test, difficult observation, and a long test stabilization time; (2) There is a lot of manual intervention in the water pressure test process, with a large labor intensity, and the professional qualities and responsibilities of the operators directly affect the accuracy of the test data; (3) The degree of automation is relatively low, and the full automation of the water pressure test cannot be achieved.

[0005] Therefore, it is necessary to design a fully automatic measurement and control system and method for borehole water pressure tests. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that, in view of the shortcomings of the existing borehole water pressure test system, which has a lot of manual intervention, high labor intensity and low degree of automation, the present invention provides a fully automatic measurement and control system and method for borehole water pressure test, so as to solve the problems existing in the prior art, such as unstable water pump injection pressure, many human interference factors, poor PQ data quality, untimely return of borehole water pressure test data, heavy labor and low efficiency of manual pressure adjustment, etc., significantly improve the reliability of water pressure test data and reduce the labor intensity of operators.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A fully automatic measurement and control system for drilling water pressure test, comprising:

[0009] A water storage tank is provided with a first water inlet and a first water outlet, the first water inlet is connected to the water outlet of the water pump, and the first water outlet is connected to the water injection pipeline of the drilling rig via a water supply pipeline, and the water supply pipeline is installed with an electric regulating valve for controlling pipeline drainage and pressure regulation, a flow meter for testing pipeline flow, and a pressure transmitter for testing pipeline water pressure;

[0010] A control box, in which an intelligent controller and a communication controller are installed. The intelligent controller is connected to the electric regulating valve, flow meter, and pressure transmitter for real-time monitoring of the flow and pressure of the water supply pipeline and for controlling the opening of the electric regulating valve. The communication controller is connected to the intelligent controller for communicating with the mobile terminal App to achieve wireless control and data transmission of the water pressure test;

[0011] Intelligent controller software, built into the intelligent controller, is used to collect real-time pressure and flow data on the water supply pipeline, control the operation of the electric regulating valve, transmit the collected pressure and flow data to the mobile app via wireless means, and receive and execute control instructions from the mobile app;

[0012] Cloud information system management platform, which is used to store basic project information;

[0013] The mobile app interacts with the communication controller and the cloud information system management platform for data, and is used to start or terminate the drilling water pressure test according to the information stored in the cloud information system management platform, and to display the current test stage and pressure and flow process data in real time.

[0014] Preferably, the water supply pipeline passes through the control box, and the electric regulating valve, flow meter, and pressure transmitter are all installed in the control box.

[0015] Preferably, a safety valve and a pressure gauge are installed on the water storage tank, and the safety valve and the pressure gauge are respectively connected to the intelligent controller.

[0016] Preferably, a drain outlet is provided on the water supply pipeline for adjusting the drilling water injection pressure.

[0017] Preferably, a self-locking power switch is installed on the box body of the control box, and the power bus of the control box is connected to an external power supply via the self-locking power switch.

[0018] Preferably, a lithium battery is installed in the control box, and the lithium battery supplies power to the electronic components in the control box. A charging port is provided on the control box, and the charging port is electrically connected to the lithium battery.

[0019] Preferably, the intelligent controller is a PLC or a microprocessor, which is used for real-time monitoring of pipeline flow and pipeline pressure and control of valve opening.

[0020] Based on the same inventive concept, the present invention also provides a testing method for the fully automatic measurement and control system for the drilling water pressure test, which comprises the following steps:

[0021] After the on-site preparation work is completed, the operator downloads the basic project information from the cloud information system management platform through the mobile app, selects the corresponding drilling information and starts the water pressure test. At the same time, the mobile app reflects the progress of the water pressure test in real time, realizing automatic monitoring and data recording of the entire water pressure test process;

[0022] After receiving the start water pressure test instruction from the mobile app, the intelligent controller adjusts the opening of the electric control valve so that the water supply pressure reaches the initial pressure P1 and starts the staged water pressure test: During each stage of the water pressure test, when the water supply pressure reaches the predetermined value and remains stable for one minute, the flow is observed; the flow and pressure are recorded once a minute. When the flow shows no continuous growth trend and the difference between the maximum and minimum values in five consecutive flow readings is less than 1L / min, the pressure stage experiment of this level can be ended, and the final value is taken as the calculated value; after the previous pressure stage test is completed, the electric control valve automatically adjusts to the water injection pressure of the next pressure stage, realizing fully automatic pressure regulation in each test stage (P1→P2→P3→P4→P5); if water backflow occurs during the test, the backflow situation is recorded, and the next flow and pressure recording is started after the backflow stops.

[0023] Preferably, the mobile app pauses or skips the current stress test phase according to the on-site situation.

[0024] Preferably, after the test is completed, the water pressure test data report is automatically stored in the mobile terminal database, and the data can be uploaded immediately or temporarily stored according to the on-site network conditions.

[0025] Preferably, the mobile app includes:

[0026] The drilling information module includes a project information unit and a basic drilling information unit. It is used to download project information from the cloud management platform and obtain basic drilling information. Before starting the water pressure test, you must first select the project and basic drilling information in this module.

[0027] The water pressure test module includes a data information display unit, a water pressure test progress unit, a system information unit, a pressure flow data graph unit and a pressure flow data table unit. The data information display unit is used to display the opening of the electric control valve, the current instantaneous flow, and whether the water pressure is qualified; the water pressure test progress unit uses a progress bar to display the progress of the current stage of the water pressure test, and displays the communication status and the total water injection volume of the water pressure test from the start to the end; the system information unit is used to record the project information and basic drilling information in the drilling information module; the pressure flow data graph unit is used to record the pressure flow data per minute in each stage. When 10 sets of data are recorded, even if the end conditions are not met, the test in this stage will end and automatically enter the next stage; the pressure flow data table unit is used to record the start and end time of each stage as well as the pressure, flow and reflux data.

[0028] The data processing module includes a water pressure test data query unit and a water pressure test data upload unit. The water pressure test data query unit is used to query all water pressure test data that have not been uploaded, and query the current record data, current record and total number of records, first record, previous record, next record, last record and the mark of whether the current record has been uploaded in the result data set; the water pressure test data upload unit is used to upload all water pressure test data that have not been uploaded, and after the upload is successful, the water pressure test data that has not been uploaded will be marked as uploaded. It is also used to re-upload the currently displayed water pressure test data without changing the upload mark.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1) The present invention realizes automatic control of the entire process of water pressure test, automatic recording of all elements and visualization of the test process, thereby improving the degree of automation of the borehole water pressure test.

[0031] 2) The present invention adds a pressure-stabilizing water storage tank to stabilize the water pressure, which can effectively smooth out pressure fluctuations from the water pump and ensure the stability of the water pressure output to the borehole, thereby improving the accuracy of the test results. In addition, the safety valve on the water storage tank can effectively prevent the water pressure from being too high, ensuring the safety of personnel and equipment.

[0032] 3) The entire water pressure test process of the present invention does not require human intervention, and the pressure adjustment in the five stages realizes fully automated control and visualization of the test process, thereby improving the integrity and objectivity of the data and reducing the labor intensity of the operators.

[0033] 4) The present invention addresses the problem of unreliable network security during field operations. By using a data temporary storage and retransmission mechanism, the water pressure test data is first stored on the mobile terminal, and the data is uploaded to the information management platform when conditions permit to connect to the Internet. This provides a flexible test data storage and transmission method for operating environments without mobile signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a schematic diagram of the appearance and structure of the fully automatic measurement and control system for drilling water pressure test of the present invention. Figure 1 .

[0036] Figure 2 This is a schematic diagram of the appearance and structure of the fully automatic measurement and control system for drilling water pressure test of the present invention. Figure 2 .

[0037] Figure 3 Schematic diagram of the support structure of the present invention.

[0038] Figure 4 This is a schematic diagram of the appearance structure of the control box of the present invention.

[0039] Figure 5 It is a schematic structural diagram of the water storage tank of the present invention.

[0040] Figure 6 It is the right view of the control box of the present invention.

[0041] Figure 7 This is a schematic diagram of the internal structure of the control box of the present invention.

[0042] Figure 8 This is a workflow diagram of the borehole water pressure test of the fully automatic measurement and control method of the borehole water pressure test of the present invention.

[0043] Figure 9 This is a schematic diagram of the module structure of the mobile app of the fully automatic measurement and control method for drilling water pressure test of the present invention.

[0044] Figure 10 This is the mobile app flow chart of the fully automatic measurement and control method for the drilling water pressure test of the present invention.

[0045] Figure markings: 1. Bracket; 2. Water storage tank; 3. Control box; 4. Safety valve; 5. Pressure gauge; 6. Hose; 21. First water inlet; 22. First water outlet; 31. Second water outlet; 32. Second water inlet; 33. Control box drain outlet; 34. Power switch; 35. Charging port; 36. Intelligent controller; 37. Communication controller; 38. Electric regulating valve; 39. Flow meter; 40. Pressure transmitter; 41. Lithium battery; 42. Water supply pipeline. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with specific preferred embodiments, but the scope of protection of the present invention is not limited thereby.

[0047] In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present 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.

[0048] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0049] like Figures 1 to 5 As shown in the figure, an embodiment of the fully automatic measurement and control system for borehole water pressure testing of the present invention comprises hardware and software components. The hardware component includes a water storage tank 2 located below a support 1 and a control box 3 located above the support 1. The software component includes intelligent controller software, a mobile app, and a cloud-based information system management platform for storing basic project information.

[0050] There is a hole on each side of the water tank 2. The right side is the first water inlet 21, which is connected to the water pump (not shown) through a 20mm inner diameter hose to receive pressurized water from the water pump. The left side is the first water outlet 22. A safety valve 4 and a pressure gauge 5 are installed on the water tank 2. The safety valve 4 is used to automatically release the pressure when the water pressure exceeds the safety range, preventing the water pressure from being too high and ensuring the safety of the operator and equipment; the pressure gauge 5 allows the operator to observe the pressure in the water tank 2 and understand the pressure changes during the test. Through its buffering effect, the water tank 2 can effectively smooth out the pressure fluctuations from the water pump, ensuring the stability of the water pressure output to the borehole, thereby improving the accuracy of the test results.

[0051] A second water outlet 31 is located on the right side of the control box 3. This outlet 31 is connected to the drilling rig's water injection line via a 25 mm inner diameter hose. This hose injects water treated by the control box 3 into the borehole, achieving the required water pressure required for the test. A second water inlet 32 and a drain 33 are located on the left side of the control box 3. The second water inlet 32 is connected to the first water outlet 22 of the water storage tank 2 via a hose 6, receiving a steady flow of water for subsequent processing. The drain 33 regulates the borehole water injection pressure by discharging water, ensuring precise control during the test. The control box 3 is used to control the water pressure and flow at each stage.

[0052] like Figure 6 As shown, the control box 3 is also provided with a self-locking power switch 34 and a charging port 35. One end of the self-locking power switch 34 is connected to the power input terminal of the electronic components in the control box 3, and the other end is connected to the external power supply. When the self-locking power switch 34 is pressed, the corresponding indicator light will light up, indicating that the power is connected and the system is operating normally. When the self-locking power switch 34 is pressed again, the corresponding indicator light will go out, indicating that the power is disconnected. This is used for power-off protection in the event of system shutdown or emergency. The charging port 35 is equipped with a waterproof cap and is used to connect a charger for battery charging. The charger is provided with an indicator light. The red light indicates that it is charging and the green light indicates that it is fully charged. When the control box 3 is powered on, the charger will automatically stop charging, and the charging indicator light will turn green to indicate that the battery is fully charged.

[0053] like Figure 7As shown, the control box 3 contains an intelligent controller 36, a communication controller 37, an electric regulating valve 38, a flowmeter 39, a pressure transmitter 40, a lithium battery 41, and a water supply pipeline 42. The intelligent controller 36, which can be a programmable logic controller (PLC) or microprocessor, is used to control and adjust various parameters of the water pressure test, such as pressure, to ensure the accuracy and stability of the test. The communication controller 37 is connected to the intelligent controller 36 and is responsible for communicating with the mobile app and transmitting the acquired information to the intelligent controller 36 for wireless control and data transmission. The electric regulating valve 38 is installed at the front end of the water supply pipeline 42 and, through connection with the intelligent controller 36, achieves controlled drainage and pressure regulation. The electric regulating valve 38 is connected to the second water inlet 32 of the control box 3, and the water supply pipeline 42 behind the second water inlet 32 is connected to the drain 33 of the control box 3. In the event of excessive water pressure or excessive flow, water can be released through the drain 33 to precisely control the water flow rate, adjust the injection pressure of the borehole, and ensure the accuracy of the experimental parameters. The flow meter 39 is used to monitor and provide feedback on the water flow rate, and the pressure transmitter 40 is used to monitor and provide feedback on the water pressure data, ensuring real-time monitoring of the parameters during the test. The lithium battery 41 provides power to the control box 3, and the lithium battery 3 is used to power the control system, which can be used in situations where there is no mains power supply. The electric control valve 38, flow meter 39 and pressure transmitter 40 are all connected to the same water supply pipeline 42. The intelligent controller 36, communication controller 37, electric control valve 38 and lithium battery 41 are connected via a layout circuit. The intelligent controller 36 collects data from the pressure transmitter 40, controls the drainage by controlling the opening of the electric control valve 38, and dynamically adjusts the water injection pressure to achieve the water injection pressure required for the pressure test at each stage of the drilling.

[0054] Intelligent controller software, mainly used for raw data acquisition and pressure regulation.

[0055] The mobile App is connected to the communication controller 37 of the control box 3 through wireless network transmission technology (Bluetooth or WIFI) to realize and monitor the entire process of the water pressure test and manage the water pressure test data of all stages.

[0056] When using the fully automatic measurement and control system for borehole water pressure testing, after connecting the water pipes, the mobile app automatically monitors and records the entire water pressure test process with a single click, eliminating the need for manual intervention. The mobile app can also download basic project information from the information system management platform and upload water pressure test data for analysis and calculation.

[0057] The working principle of the borehole water pressure test of the present invention is to pressurize water into the borehole and calculate the development of rock cracks and permeability based on the water absorption of the rock mass. This is an in-situ test. During the drilling process or after the drilling is completed, a certain length of the borehole test section is isolated using a special water-stopping device. Then, water is injected into this section of the borehole with a fixed water head. The water penetrates into the rock mass through the cracks around the hole wall. The amount of water that eventually penetrates will tend to a stable value. The injection pressure is then changed. The five-point method is generally used, namely P1, P2, P3, P4 (= P2), and P5 (= P1). The conventional pressure values are: P1 = 0.3 MPa, P2 = 0.6 MPa, and P3 = 1.0 MPa. Based on the injection pressure, the length of the test section, and the stable infiltrating water volume, the permeability of the rock mass is calculated to determine the strength of the rock mass's permeability. The results of the water pressure test are mainly used to evaluate the permeability of the rock mass and serve as the basic basis for seepage control design.

[0058] like Figure 8 As shown, the borehole water pressure test workflow is divided into six modules: preparation K1, test pressure P1 stage K2, test pressure P2 stage K3, test pressure P3 stage K4, test pressure P4 stage K5, and test pressure P5 stage K6. The specific steps of each module are as follows:

[0059] Step K11: First, carry out engineering drilling construction, drill core, sample, and then clean;

[0060] Step K12: Install the fully automatic measurement and control system for the borehole water pressure test and the drilling rig of the present invention, and inject water into the borehole;

[0061] Step K13: Measure the borehole inclination, which is less than 0.5 degrees, and measure the static water level;

[0062] Step K14: Conducting a test water pressure test and preparing to start the staged water pressure test;

[0063] Step K21: flush water into the test section and increase the water injection pressure to P1 = 0.3 MPa;

[0064] Step K22: After the pressure reaches the predetermined value and remains stable for one minute, flow rate observation is performed;

[0065] Step K23: Record the flow rate Q and pressure P once every minute;

[0066] Step K24: When the flow rate has no continuous growth trend and the difference between the maximum and minimum values in five consecutive flow rate readings is less than 1 L / min, the pressure stage experiment of this level can be ended, and the final value is taken as the calculated value.

[0067] After the stage test is completed, the intelligent controller 36 in the control box 3 will automatically adjust the water injection pressure of the next stage through the electric regulating valve 38, and adjust the pressure to P2 = 0.6, P3 = 1.0, P4 = 0.6 and P5 = 0.3 MPa respectively, that is, enter steps K31, K41, K51 and K61. At the same time, the mobile app will display the water pressure test proceeding to the next stage, and record and save the flow and pressure data from the start to the end of each stage, without manual recording. Figure 8 Repeat the above staged water pressure test for five times to complete one test section. If water backflow occurs during the test (i.e., the flow meter reverses), the backflow situation should be recorded. When the backflow stops, start the next step of flow and pressure recording.

[0068] like Figure 9 As shown, the mobile App A includes three submodules: drilling information module A1, water pressure test module A2 and data processing module A3.

[0069] The drilling information module A1 includes a project information unit A11 and a drilling basic information unit A12, which mainly completes tasks such as downloading project information and inputting basic drilling information. Before starting the water pressure test, the project and drilling basic information must be entered in the module.

[0070] The water pressure test module A2 consists of a data display unit A21, a water pressure test progress unit A22, a system information unit A23, a pressure and flow data graph unit A24, and a pressure and flow data table unit A25. The data display unit A21 uses digits and a pointer to display the opening of the electric control valve, enabling automatic pressure adjustment in five stages. It also displays the current instantaneous water flow rate and the current borehole water pressure. Red indicates failing pressure, while green indicates passing pressure. The water pressure test stage progress unit A22 uses a progress bar to indicate the stage of the water pressure test. Completed stages are displayed in green, while ongoing stages have a flashing background. The progress bar indicates the timing status, with the numerical value showing the timing value, and a text box indicating the measurement and control status. It also displays the communication status and the total water injection volume from the start to the end of the water pressure test. The system information unit A23 records project information and basic borehole information from the borehole information module. This data is imported from the borehole information module and includes the date, which is automatically populated by the system. The pressure and flow data graph unit A24 records minute-by-minute pressure and flow data for each stage in a bar graph format, with purple indicating pressure and blue indicating flow. When 10 sets of data are recorded, the test for this phase will end even if the end condition has not been met. The pressure and flow data table unit A25 records the start and end time of each phase and the last pressure and flow data in a table format.

[0071] The data processing module A3 includes a water pressure test data query unit A31 and a water pressure test data upload unit A32. The water pressure test data query unit A31 can query all unuploaded water pressure test data with one click, and query the current record data, current record and total number of records, first record, previous record, next record, last record and whether the current record has been uploaded in the result data set. Water pressure test data can also be queried by three methods: project name, borehole number and date range. The water pressure test data upload unit A32 can upload all unuploaded water pressure test data with one click, and after successful upload, the unuploaded water pressure test data will be marked as uploaded. Re-upload the currently displayed water pressure test data without changing the upload mark.

[0072] like Figure 10 As shown, the use process of the fully automatic measurement and control system for drilling water pressure test of the present invention includes the following steps:

[0073] Step S1: Connect the water pipe, press the self-locking power switch 34, the power indicator light turns on, and the power is turned on;

[0074] Step S2: Install the mobile app on your Android phone or tablet, turn off the mobile data connection, and set up a wireless network connection. You will need to enter a password for the first connection.

[0075] Step S3: After the mobile app is connected to the Internet, it will download information such as the project name and borehole number. There will be a prompt if the download is successful or failed. After the project information is successfully downloaded, a list of all downloaded projects will pop up. Select the project in the list. After selecting the project, click the borehole number. A list of all the borehole numbers of the selected project will pop up. Select the number in the list. After entering the basic information, enter the water pressure test module;

[0076] Step S4: Click the water pressure test button on the mobile app to enter the water pressure test interface, and the entered basic drilling information will be automatically substituted;

[0077] Step X1: Determine whether the communication is normal. If the communication is normal, you can click the Start button and proceed to step S5 to start the water pressure test. If the communication is abnormal, proceed to step S6 to eliminate the cause and wait for the communication to return to normal. After starting the water pressure test, click the Skip button to jump to the next stage. If the current stage is P5, the test ends. Click the Tentative button to stop the timer and pause the process. Click again to continue the process. Click the End button to end the test.

[0078] Step S5: Start the water pressure test. Unless there are special circumstances such as failure to apply pressure, the entire water pressure test process will be automatically completed and the test data will be displayed in the corresponding module. Once the water pressure test starts, you cannot switch to other modules before it ends.

[0079] Step S7: When the water pressure test is finished, you will be prompted to save the test data. If you save it, a message will be returned indicating that the data has been saved successfully. If you do not want to save it, you can also choose to abandon the test results.

[0080] Step S8: Query and upload of water pressure test data. Users can view the saved test data through this module and upload the data to the information management platform for further analysis and processing;

[0081] Step S9: Exit the mobile App. To prevent misoperation, a pop-up window will pop up to confirm again. After confirmation, exit.

[0082] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make many possible changes and modifications to the technical solution of the present invention using the technical content disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change, and modification made to the above embodiment in accordance with the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A fully automatic measurement and control system for drilling water pressure test, characterized in that include: A water storage tank is provided with a first water inlet and a first water outlet, the first water inlet is connected to the water outlet of the water pump, and the first water outlet is connected to the water injection pipeline of the drilling rig via a water supply pipeline, and the water supply pipeline is installed with an electric regulating valve for controlling pipeline drainage and pressure regulation, a flow meter for testing pipeline flow, and a pressure transmitter for testing pipeline water pressure; A control box, in which an intelligent controller and a communication controller are installed. The intelligent controller is connected to the electric regulating valve, flow meter, and pressure transmitter for real-time monitoring of the flow and pressure of the water supply pipeline and for controlling the opening of the electric regulating valve. The communication controller is connected to the intelligent controller for communicating with the mobile terminal App to achieve wireless control and data transmission of the water pressure test; Intelligent controller software, built into the intelligent controller, is used to collect real-time pressure and flow data on the water supply pipeline, control the operation of the electric regulating valve, transmit the collected pressure and flow data to the mobile app via wireless means, and receive and execute control instructions from the mobile app; Cloud information system management platform, which is used to store basic project information; The mobile app interacts with the communication controller and the cloud information system management platform for data, and is used to start or terminate the drilling water pressure test according to the information stored in the cloud information system management platform, and to display the current test stage and pressure and flow process data in real time.

2. The fully automatic measurement and control system for drilling water pressure test according to claim 1 is characterized by: The water supply pipeline passes through the control box, and the electric regulating valve, flow meter and pressure transmitter are all installed in the control box.

3. The fully automatic measurement and control system for drilling water pressure test according to claim 1 is characterized by: A safety valve and a pressure gauge are installed on the water storage tank, and the safety valve and the pressure gauge are respectively connected to the intelligent controller.

4. The fully automatic measurement and control system for drilling water pressure test according to claim 1 is characterized by: A drain outlet is provided on the water supply pipeline for adjusting the drilling water injection pressure.

5. The fully automatic measurement and control system for drilling water pressure test according to claim 1 is characterized by: A self-locking power switch is installed on the box body of the control box, and the power bus of the control box is connected to an external power source via the self-locking power switch.

6. The fully automatic measurement and control system for drilling water pressure test according to claim 1 is characterized by: A lithium battery is installed in the control box, and the lithium battery supplies power to the electronic components in the control box. A charging port is provided on the control box, and the charging port is electrically connected to the lithium battery.

7. The fully automatic measurement and control system for drilling water pressure test according to claim 1 is characterized by: The intelligent controller is a PLC or a microprocessor.

8. A method for testing a fully automatic measurement and control system for a borehole water pressure test according to any one of claims 1 to 7, characterized in that The following steps are involved: After the on-site preparation work is completed, the operator downloads the basic project information from the cloud information system management platform through the mobile app, selects the corresponding drilling information and starts the water pressure test. At the same time, the mobile app reflects the progress of the water pressure test in real time, realizing automatic monitoring and data recording of the entire water pressure test process; After receiving the water pressure test start command from the mobile app, the intelligent controller adjusts the opening of the electric control valve so that the water supply pressure reaches the initial pressure P1 and starts the staged water pressure test: During each stage of the water pressure test, when the water supply pressure reaches the predetermined value and remains stable for one minute, the flow rate is observed; the flow rate and pressure are recorded once a minute. When the flow rate shows no continuous growth trend and the difference between the maximum and minimum values in five consecutive flow readings is less than 1L / min, the pressure stage experiment of this level can be ended, and the final value is taken as the calculated value; after the previous pressure stage test is completed, the electric control valve automatically adjusts to the water injection pressure of the next pressure stage, realizing fully automatic pressure regulation in each test stage; If water backflow occurs during the test, record the backflow situation. When the backflow stops, start the next step of flow and pressure recording.

9. The fully automatic test method for drilling water pressure test according to claim 8, characterized in that: The mobile app pauses or skips the current stress test phase based on the on-site situation.

10. The fully automatic test method for drilling water pressure test according to claim 8, characterized in that: After the test is completed, the water pressure test data report is automatically stored in the mobile database, and the data can be uploaded immediately or temporarily stored according to the on-site network conditions.

11. The fully automatic test method for drilling water pressure test according to claim 8, characterized in that: The mobile app includes: The drilling information module includes a project information unit and a basic drilling information unit. It is used to download project information from the cloud management platform and obtain basic drilling information. Before starting the water pressure test, you must first select the project and basic drilling information in this module. The water pressure test module includes a data information display unit, a water pressure test progress unit, a system information unit, a pressure flow data graph unit and a pressure flow data table unit. The data information display unit is used to display the opening of the electric control valve, the current instantaneous flow, and whether the water pressure is qualified; the water pressure test progress unit uses a progress bar to display the progress of the current stage of the water pressure test, and displays the communication status and the total water injection volume of the water pressure test from the start to the end; the system information unit is used to record the project information and basic drilling information in the drilling information module; the pressure flow data graph unit is used to record the pressure flow data per minute in each stage. When 10 sets of data are recorded, even if the end conditions are not met, the test in this stage will end and automatically enter the next stage; the pressure flow data table unit is used to record the start and end time of each stage as well as the pressure, flow and reflux data. The data processing module includes a water pressure test data query unit and a water pressure test data upload unit. The water pressure test data query unit is used to query all unuploaded water pressure test data, and query the current record data, the current record and the total number of records, the first record, the previous record, the next record, the last record and the mark of whether the current record has been uploaded in the result data set; The water pressure test data upload unit is used to upload all unuploaded water pressure test data. After successful upload, the unuploaded water pressure test data will be marked as uploaded. It is also used to re-upload the currently displayed water pressure test data without changing the upload mark.

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