A formation physical model and a simulation method for simulating an oilfield production process

Abstract

The application discloses a formation physical model and a simulation method for simulating an oilfield production process, relates to the technical field of simulating oilfield production, and comprises a collection module, wherein the collection module is connected with a detection module through bidirectional electricity. The core model, the surface soil layer and the oil liquid simulation space are arranged, so that formation physical models with different sizes and shapes can be easily made according to requirements; the collection module can collect the temperature, pressure and flow information inside the oil liquid simulation space; the detection module and the data comparison module are arranged, so that the collected temperature, pressure and flow information can be compared; the data transmission module is arranged, so that the collected data and the compared information can be transmitted to a control platform; finally, the data can be displayed on a data display panel, so that the data can be easily observed; and the PLC controller is arranged, so that the simulation experiment can be automatically performed by the actuating mechanism after the data reaches the set value, and the simulation effect is improved.

Description

Technical Field

[0001] This invention relates to the field of simulated oilfield production technology, specifically to a formation physical model and simulation method for simulating the oilfield production process. Background Technology

[0002] Oil production engineering is a general term for various engineering and technical measures taken on the oil reservoir through production wells and injection wells during the oilfield development process according to the development goals. Before oilfield production, it is necessary to simulate the oil production process. Therefore, it is necessary to use a formation physical model to simulate the situations that may occur during the oil production process.

[0003] The existing formation physics models for simulating oilfield production processes have the following shortcomings:

[0004] 1. Patent document US20090198478A1 discloses an oilfield simulator. However, the simulation process in the above-disclosed document requires manual processing, which has the technical problem of low accuracy in data control.

[0005] 2. Patent document US09243476B2 discloses an oilfield operation simulation system and method. However, in the above-mentioned document, when simulating oil production, only a single oil production simulation can be performed, and the oil production data contains errors.

[0006] 3. Patent document US20090055141A1 discloses a system and method for performing oilfield simulation operations. However, in the above-mentioned document, the flow rate of the oil collected is not accurately measured during the oil collection process, which may lead to a decrease in the accuracy of the simulation.

[0007] 4. Patent document CN112598951A discloses a training device for simulating the process control of oil production, transportation and storage in an oilfield. However, the above-mentioned document only describes the working method of the oil production machine and does not provide a specific description of the oil conditions in the formation. Summary of the Invention

[0008] The purpose of this invention is to provide a formation physical model and simulation method for simulating the oilfield production process, so as to solve the technical problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a formation physical model simulating the oilfield production process, comprising an acquisition module, wherein the acquisition module is bidirectionally electrically connected to a detection module, the detection module is bidirectionally electrically connected to a data comparison module, the data comparison module is electrically connected to a data transmission module and a data storage module, the data transmission module is electrically connected to a control platform, the control platform is electrically connected to a data display panel and a PLC controller, and the PLC controller is bidirectionally electrically connected to an actuator;

[0010] The actuator includes a geological physical model, with one side of the top of the model mounted on the bottom of the PLC controller. A core model is located at the bottom of the inner wall of the geological physical model, and a surface soil layer is located on top of the core model. An oil simulation space is formed in the inner wall of the core model. Several control knobs are located at the front end of the top of the PLC controller. Several temperature sensors, pressure sensors, and flow sensors are installed on the inner wall of the oil simulation space, and all of these sensors are electrically connected to the data acquisition module.

[0011] Preferably, a first five-way valve is installed in the middle of the top of the surface soil layer. An input pipe is installed at the output end of the first five-way valve, and the other end of the input pipe passes through the core model and the surface soil layer and is installed on the outer wall of the oil simulation space. An input component is installed at the input end of the first five-way valve. The input component is used to input formation water, crude oil, injected gas and polymer.

[0012] Preferably, the input component includes a booster pump, the bottom of which is installed at the front end of the top of the surface soil layer. The output end of the booster pump is equipped with a second five-way valve, and the output end of the second five-way valve is equipped with a plurality of output pipes. The other end of the output pipes is respectively connected to a formation water storage container, a crude oil storage container, an injection gas storage container, and a polymer storage container. The bottoms of the formation water storage container, crude oil storage container, injection gas storage container, and polymer storage container are all installed at one end of the top of the surface soil layer.

[0013] Preferably, the output end of the formation water storage container is equipped with a formation water output pipe, and the other end of the formation water output pipe is installed at the input end of the first five-way valve; the output end of the crude oil storage container is equipped with a crude oil output pipe, and the other end of the crude oil output pipe is installed at the input end of the first five-way valve; the output end of the injection gas storage container is equipped with an injection gas output pipe, and the other end of the injection gas output pipe is installed at the input end of the first five-way valve; the output end of the polymer storage container is equipped with a polymer output pipe, and the other end of the polymer output pipe is installed at the input end of the first five-way valve.

[0014] Preferably, an oil extraction channel is fitted into the middle of the core model and the top of the surface soil layer, and sealing valves are installed at the bottom and top of the oil extraction channel.

[0015] Preferably, an oil storage tank is installed on top of the surface soil layer, an oil collection pipe is installed at the input end of the oil storage tank, a solenoid valve is installed at one end of the outer wall of the oil collection pipe, a flow meter is installed on the outer wall of the solenoid valve, and an oil outlet is movably connected to the other end of the oil collection pipe. One end of the oil outlet is opened on the outer wall of the oil lifting pipe, and the outer wall of the oil lifting pipe is movably connected to the inner wall of the oil lifting channel.

[0016] Preferably, a set of support plates is installed on the top of the surface soil layer. The top of the support plates is provided with a slide rail. The inner bottom wall of the slide rail is provided with several grooves. Rollers are installed on the inner wall of the grooves. The outer wall of the support plates is provided with several fixing holes.

[0017] Preferably, the inner wall of the slide rail is equipped with a slider, the bottom of the slider is mounted on the top of the roller, the top of the slider is equipped with a support frame, and the top of the support frame is equipped with an oil lifting machine.

[0018] Preferably, the simulation method for the formation physical model simulating the oilfield production process is as follows:

[0019] S1. By setting up core models, surface soil layers, and oil simulation spaces, it is easy to create formation physical models of different sizes and shapes according to needs. Through the setting of the acquisition module, the acquisition module can collect temperature, pressure, and flow information inside the oil simulation space. Through the setting of the detection module and the data comparison module, the collected temperature, pressure, and flow information are compared to ensure the accuracy of the data during the simulation process. Then, through the data transmission module, the collected data and data comparison information are transmitted to the control platform, and finally displayed on the data display panel for easy viewing by users. Through the setting of the PLC controller, after the data set value is reached, the actuator can be automatically adjusted to carry out the simulation experiment, which helps to improve the simulation effect.

[0020] S2. The oil extraction channel is sealed by a sealing valve. Formation water, crude oil and injection gas can be injected into the simulated oil space in sequence by a booster pump, a first five-way valve and a second five-way valve. The collected data and the set values ​​are compared. After the required values ​​are reached, the well is simulated to be shut down. After the effect required for the well shut-down treatment is achieved, the sealing valve is opened, which can simulate the effect of oil automatically spraying out during the first stage of oil production.

[0021] S3. When the elastic energy is insufficient to lift the fluid, use a booster pump and a second five-way valve to inject formation water or gas into the oil simulation space to increase the pressure of the oil layer, supplement the elastic energy of the fluid in the formation physical model, so that the formation fluid can always flow to the oil extraction channel, thereby being able to extract oil that cannot be extracted by natural energy alone, and thus simulating the completion of secondary oil recovery.

[0022] S4. By setting up a polymer storage container, a water-soluble relative molecular polymer is added to the oil simulation space, thereby changing the viscosity of the crude oil, increasing the fluidity of the crude oil, and thus simulating and improving the portability of oil collection, which facilitates the simulation of tertiary oil recovery.

[0023] S5. In the simulated three-stage oil recovery process, the collected oil will eventually flow into the storage tank for collection.

[0024] Preferably, step S3 further includes the following steps:

[0025] S31. The support plate, slide rail, groove and roller are designed to facilitate the movement of the slider in the slide rail. The movement of the slider can drive the support frame and the oil extraction machine to move, which makes it easy to replace the oil extraction machine with different performance. The fixed hole can improve the stability when using the oil extraction machine, and thus can simulate the formation conditions during the oil extraction process using different oil extraction machines.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention, through the setup of a core model, surface soil layer, and oil simulation space, facilitates the creation of formation physical models of different sizes and shapes according to requirements. The acquisition module collects temperature, pressure, and flow information within the oil simulation space. The detection and data comparison modules compare the collected temperature, pressure, and flow information to ensure safety during the simulation. The data transmission module transmits the collected data and comparison information to the control platform, where it is finally displayed on the data display panel for easy viewing by users. The PLC controller, once the set data values ​​are reached, can automatically adjust the actuators to conduct the simulation experiment, thereby improving the simulation effect.

[0028] 2. This invention seals the oil extraction channel with a sealing valve. Formation water, crude oil, and injected gas can be injected sequentially into the oil simulation space through a booster pump, a first five-way valve, and a second five-way valve. By comparing the collected data with the set values, primary oil recovery simulation, secondary oil recovery simulation, and tertiary oil recovery simulation can be completed respectively. This facilitates the acquisition of a large amount of simulation data and helps to improve the simulation effect.

[0029] 3. This invention, through the installation of an oil storage tank, a solenoid valve, a flow meter, an oil collection pipe, and an oil lifting pipe, can collect the injected crude oil and record the flow rate of the collected oil, which is beneficial for accurately obtaining oil production data and improving the accuracy of the simulation.

[0030] 4. The present invention facilitates the movement of the slider within the slide rail by setting up a support plate, slide rail, groove and roller. The movement of the slider can drive the support frame and the oil extraction machine to move, thereby facilitating the replacement and use of oil extraction machines with different performance. The setting of fixing holes can improve the stability when using the oil extraction machine, thereby simulating the formation conditions during the oil extraction process using different oil extraction machines. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the geological physical model structure of the present invention;

[0033] Figure 3 This is a top view of the structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the support plate structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the fixing hole structure of the present invention;

[0036] Figure 6 This is a schematic diagram of the support frame structure of the present invention;

[0037] Figure 7 This is a schematic diagram of the system structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the process of the present invention.

[0039] In the diagram: 1. Acquisition module; 2. Detection module; 3. Data comparison module; 4. Data transmission module; 5. Data storage module; 6. Control platform; 7. Data display panel; 8. PLC controller; 9. Actuator; 10. Formation physical model; 11. Core model; 12. Surface soil layer; 13. Oil simulation space; 14. Control knob; 15. Temperature sensor; 16. Pressure sensor; 17. Flow sensor; 18. First five-way valve; 21. Input pipe; 22. Formation water storage container; 23. Crude oil storage container; 24. Injection... 25. Gas storage container; 26. Polymer storage container; 27. Formation water output pipe; 28. Crude oil output pipe; 29. ​​Injected gas output pipe; 30. Polymer output pipe; 31. Oil extraction channel; 32. Sealing valve; 33. Support plate; 34. Slide rail; 35. Groove; 36. Roller; 37. Fixing hole; 38. Sliding block; 39. Support frame; 40. Oil extraction machine; 41. Oil storage tank; 42. Oil collection pipe; 43. Oil outlet; 44. Oil extraction pipe; 45. Booster pump; 46. Second five-way valve; 47. Output pipeline; 48. Solenoid valve; 49. Flow meter. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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 "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this 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 this invention. Furthermore, the terms "first" and "second" 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 "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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] Example 1: Please refer to Figure 7An embodiment of the present invention provides a formation physical model simulating an oilfield production process, comprising a data acquisition module 1, a detection module 2 bidirectionally electrically connected to the data acquisition module 1, a data comparison module 3 bidirectionally electrically connected to the detection module 2, a data transmission module 4 and a data storage module 5 electrically connected to the data comparison module 3, a control platform 6 electrically connected to the data transmission module 4, a data display panel 7 and a PLC controller 8 electrically connected to the control platform 6, and an actuator 9 bidirectionally electrically connected to the PLC controller 8. The actuator 9 includes a formation physical model 10, with one side of the top of the formation physical model 10 mounted on the bottom of the PLC controller 8. A core model 11 is provided at the bottom of the inner wall of the formation physical model 10, a surface soil layer 12 is provided at the top of the core model 11, and an oil simulation space 13 is opened in the inner wall of the core model 11. Several control knobs 14 are provided at the front end of the top of the PLC controller 8, and several control knobs 14 are provided in the inner wall of the oil simulation space 13. A temperature sensor 15, a pressure sensor 16, and a flow sensor 17 are included, all of which are electrically connected to the acquisition module 1. The setup of the core model 11, the surface soil layer 12, and the oil simulation space 13 facilitates the creation of formation physical models 10 of different sizes and shapes as needed. The acquisition module 1 collects temperature, pressure, and flow information within the oil simulation space 13. The detection module 2 and data comparison module 3 compare the collected temperature, pressure, and flow information to ensure data accuracy during the simulation. The data transmission module 4 transmits the collected data and comparison information to the control platform 6, which is then displayed on the data display panel 7 for user review. The PLC controller 8 automatically adjusts the actuator 9 to perform the simulation experiment once the set data value is reached, thus improving the simulation effect.

[0044] Example 2: Please refer to Figure 1 , Figure 2 and Figure 3One embodiment of the present invention provides a formation physical model simulating an oilfield production process. A first five-way valve 18 is installed at the middle of the top of the surface soil layer 12. An input pipe 21 is installed at the output end of the first five-way valve 18, and the other end of the input pipe 21 penetrates the core model 11 and the surface soil layer 12 and is installed on the outer wall of the oil simulation space 13. An input component is installed at the input end of the first five-way valve 18. The input component is used to input formation water, crude oil, injected gas, and polymers. The input component includes a booster pump 44, and the bottom of the booster pump 44 is installed at the top of the surface soil layer 12. At the front end, a second five-way valve 45 is installed at the output end of the booster pump 44. Several output pipes 46 are installed at the output end of the second five-way valve 45, and the other ends of the output pipes 46 are respectively connected to a formation water storage container 22, a crude oil storage container 23, an injection gas storage container 24, and a polymer storage container 25. The bottoms of the formation water storage container 22, crude oil storage container 23, injection gas storage container 24, and polymer storage container 25 are all installed at one end of the top of the surface soil layer 12. A formation water output pipe 26 is installed at the output end of the formation water storage container 22. The other end of the output pipe 26 is installed at the input end of the first five-way valve 18. The output end of the crude oil storage container 23 is equipped with a crude oil output pipe 27, and the other end of the crude oil output pipe 27 is installed at the input end of the first five-way valve 18. The output end of the injection gas storage container 24 is equipped with an injection gas output pipe 28, and the other end of the injection gas output pipe 28 is installed at the input end of the first five-way valve 18. The output end of the polymer storage container 25 is equipped with a polymer output pipe 29, and the other end of the polymer output pipe 29 is installed at the input end of the first five-way valve 18. The core model 11 and surface soil... An oil extraction channel 30 is fitted into the middle of the top of layer 12. Sealing valves 31 are installed at the bottom and top of the oil extraction channel 30. The oil extraction channel 30 is sealed by the sealing valves 31. Formation water, crude oil and injection gas can be injected into the oil simulation space 13 in sequence by the booster pump 44, the first five-way valve 18 and the second five-way valve 45. The collected data and the set values ​​are compared. After the required values ​​are reached, the well suffocation treatment is performed. After the effect required for the well suffocation treatment is achieved, the sealing valve 31 is opened, thereby simulating the effect of automatic oil spraying during the first stage of oil production.

[0045] Example 3: Please refer to Figure 1 , Figure 2 and Figure 3One embodiment of the present invention provides a formation physical model simulating an oilfield production process. A first five-way valve 18 is installed at the middle of the top of the surface soil layer 12. An input pipe 21 is installed at the output end of the first five-way valve 18, and the other end of the input pipe 21 penetrates the core model 11 and the surface soil layer 12 and is installed on the outer wall of the oil simulation space 13. An input component is installed at the input end of the first five-way valve 18. The input component is used to input formation water, crude oil, injected gas, and polymers. The input component includes a booster pump 44, and the bottom of the booster pump 44 is installed in the surface soil layer. At the front end of the top of the 12, a second five-way valve 45 is installed at the output end of the booster pump 44. Several output pipes 46 are installed at the output end of the second five-way valve 45, and the other ends of the output pipes 46 are respectively connected to a formation water storage container 22, a crude oil storage container 23, an injection gas storage container 24, and a polymer storage container 25. The bottoms of the formation water storage container 22, crude oil storage container 23, injection gas storage container 24, and polymer storage container 25 are all installed at one end of the top of the surface soil layer 12. A formation water output valve is installed at the output end of the formation water storage container 22. Pipe 26, with the other end of the formation water output pipe 26 installed at the input end of the first five-way valve 18; crude oil storage container 23 has crude oil output pipe 27 installed at its output end, with the other end of crude oil output pipe 27 installed at the input end of the first five-way valve 18; injection gas storage container 24 has injection gas output pipe 28 installed at its output end, with the other end of injection gas output pipe 28 installed at the input end of the first five-way valve 18; polymer storage container 25 has polymer output pipe 29 installed at its output end, with the other end of polymer output pipe 29 installed at the input end of the first five-way valve 18. At the end, an oil extraction channel 30 is installed in the middle of the top of the core model 11 and the surface soil layer 12. Sealing valves 31 are installed at the bottom and top of the oil extraction channel 30. When the elastic energy is insufficient to lift the fluid, a booster pump 44 and a second five-way valve 45 are used to inject formation water or gas into the oil simulation space 13 to increase the pressure of the oil layer and supplement the elastic energy of the fluid in the formation physical model 10. This allows the formation fluid to always flow to the oil extraction channel 30, thereby enabling the extraction of oil that cannot be extracted by natural energy alone, and thus simulating the completion of secondary oil recovery.

[0046] Example 4: Please refer to Figure 1 , Figure 2 and Figure 3One embodiment of the present invention provides a formation physical model simulating an oilfield production process. A first five-way valve 18 is installed at the middle of the top of the surface soil layer 12. An input pipe 21 is installed at the output end of the first five-way valve 18, and the other end of the input pipe 21 penetrates the core model 11 and the surface soil layer 12 and is installed on the outer wall of the oil simulation space 13. An input component is installed at the input end of the first five-way valve 18. The input component is used to input formation water, crude oil, injected gas, and polymers. The input component includes a booster pump 44, and the booster pump 44... The bottom of the booster pump 44 is installed at the front end of the top of the surface soil layer 12. A second five-way valve 45 is installed at the output end of the booster pump 44. Several output pipes 46 are installed at the output end of the second five-way valve 45, and the other ends of the output pipes 46 are respectively connected to a formation water storage container 22, a crude oil storage container 23, an injection gas storage container 24, and a polymer storage container 25. The bottoms of the formation water storage container 22, crude oil storage container 23, injection gas storage container 24, and polymer storage container 25 are all installed at the top of the surface soil layer 12. The output end of the formation water storage container 22 is equipped with a formation water output pipe 26, and the other end of the formation water output pipe 26 is connected to the input end of the first five-way valve 18. The output end of the crude oil storage container 23 is equipped with a crude oil output pipe 27, and the other end of the crude oil output pipe 27 is connected to the input end of the first five-way valve 18. The output end of the injection gas storage container 24 is equipped with an injection gas output pipe 28, and the other end of the injection gas output pipe 28 is connected to the input end of the first five-way valve 18. The output end of the polymer storage container 25 is equipped with a polymer... The polymer output pipe 29 is installed at the other end of the first five-way valve 18. An oil extraction channel 30 is installed in the middle of the top of the core model 11 and the surface soil layer 12. Sealing valves 31 are installed at the bottom and top of the oil extraction channel 30. By setting up the polymer storage container 25, a water-soluble relative molecular polymer is added to the oil simulation space 13, thereby changing the viscosity of the crude oil, increasing the fluidity of the crude oil, thereby simulating and improving the portability of oil collection, and thus facilitating the simulation of tertiary oil recovery.

[0047] Example 5: Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6One embodiment of the present invention provides a formation physical model simulating the oilfield production process. A set of support plates 32 are installed on the top of the surface soil layer 12. A slide rail 33 is provided on the top of the support plates 32. Several grooves 34 are formed on the inner bottom wall of the slide rail 33. Rollers 35 are installed on the inner walls of the grooves 34. Several fixing holes 36 are formed on the outer wall of the support plates 32. Slider blocks 37 are installed on the inner walls of the slide rails 33, with the bottom of the slider 37 mounted on the top of the rollers 35. A [missing information - likely a device or component] is installed on the top of the slider 37. The support frame 38 has an oil extraction machine 39 mounted on its top. The support plate 32, slide rail 33, groove 34 and roller 35 facilitate the movement of the slider 37 within the slide rail 33. The movement of the slider 37 can drive the support frame 38 and the oil extraction machine 39 to move, thereby facilitating the replacement of oil extraction machines 39 with different performance. The setting of the fixing hole 36 can improve the stability when using the oil extraction machine 39, thereby simulating the formation conditions during oil extraction using different oil extraction machines 39.

[0048] Example 6: Please refer to Figure 1 and Figure 3 This invention provides an embodiment of a formation physical model simulating an oilfield oil production process. An oil storage tank 40 is installed on top of the surface soil layer 12. An oil collection pipe 41 is installed at the input end of the oil storage tank 40. A solenoid valve 47 is installed at one end of the outer wall of the oil collection pipe 41, and a flow meter 48 is installed on the outer wall of the solenoid valve 47. An oil outlet 42 is movably connected to the other end of the oil collection pipe 41. One end of the oil outlet 42 is located on the outer wall of a lifting pipe 43, and the outer wall of the lifting pipe 43 is movably connected to the inner wall of the lifting channel 30. Through the arrangement of the oil storage tank 40, solenoid valve 47, flow meter 48, oil collection pipe 41, and lifting pipe 43, the injected crude oil can be collected, and the flow rate of the collected oil can be recorded, which is beneficial for accurately obtaining oil production data and improving the accuracy of the simulation.

[0049] The simulation method for the formation physical model of the oilfield production process is as follows:

[0050] S1. By setting up the core model 11, surface soil layer 12, and oil simulation space 13, it is convenient to make formation physical models 10 of different sizes and shapes according to needs. By setting up the acquisition module 1, the acquisition module 1 can collect temperature, pressure, and flow information inside the oil simulation space 13. By setting up the detection module 2 and the data comparison module 3, the collected temperature, pressure, and flow information are compared to ensure the accuracy of the data during the simulation process. Then, the data transmission module 4 transmits the collected data and the data comparison information to the control platform 6, and finally displays it on the data display panel 7 for easy viewing by users. By setting up the PLC controller 8, after reaching the set data value, the actuator 9 can be automatically adjusted to carry out the simulation experiment, which helps to improve the simulation effect.

[0051] S2. The oil extraction channel 30 is sealed by the sealing valve 31. Formation water, crude oil and injection gas can be injected into the oil simulation space 13 in sequence by the booster pump 44, the first five-way valve 18 and the second five-way valve 45. The collected data and the set values ​​are compared. After the required values ​​are reached, the well suffocation treatment is performed. After the effect required for the well suffocation treatment is achieved, the sealing valve 31 is opened, thereby simulating the effect of automatic oil spraying during the first stage of oil production.

[0052] S3. When the elastic energy is insufficient to lift the fluid, use the booster pump 44 and the second five-way valve 45 to inject formation water or gas into the oil simulation space 13 to increase the pressure of the oil layer, supplement the elastic energy of the fluid in the formation physical model 10, so that the formation fluid can always flow to the oil extraction channel 30, thereby being able to extract oil that cannot be extracted by natural energy alone, and thus simulate the completion of secondary oil recovery.

[0053] S4. By setting up the polymer storage container 25, a water-soluble relative molecular polymer is added to the oil simulation space 13, thereby changing the viscosity of the crude oil, increasing the fluidity of the crude oil, thereby simulating and improving the portability of oil collection, and thus facilitating the simulation of tertiary oil recovery.

[0054] S5. During the simulated three-stage oil recovery process, the collected oil will eventually flow into the oil storage tank 40 for collection.

[0055] Step S3 also includes the following steps:

[0056] S31. The support plate 32, slide rail 33, groove 34 and roller 35 facilitate the movement of slider 37 within slide rail 33. The movement of slider 37 can drive the support frame 38 and oil extraction machine 39 to move, thereby facilitating the replacement of oil extraction machines 39 with different performance. The setting of fixing hole 36 can improve the stability when using oil extraction machine 39, thereby simulating the formation conditions during oil extraction using different oil extraction machines 39.

[0057] The working principle involves setting up a core model 11, a surface soil layer 12, and an oil simulation space 13. This allows for the creation of formation physical models 10 of different sizes and shapes as needed. The acquisition module 1 collects temperature, pressure, and flow information within the oil simulation space 13. The detection module 2 and data comparison module 3 compare the collected temperature, pressure, and flow information to ensure data accuracy during the simulation. The data transmission module 4 then transmits the collected data and comparison information to the control platform 6, where it is finally displayed on the data display panel 7 for user review. Through the settings of PLC controller 8, after reaching the set data value, the actuator 9 can be automatically adjusted to conduct simulation experiments, which is beneficial to improving the simulation effect. The oil lifting channel 30 is sealed by sealing valve 31. Formation water, crude oil and injection gas can be injected into the oil simulation space 13 in sequence through booster pump 44, first five-way valve 18 and second five-way valve 45. According to the comparison between the collected data and the set values, after reaching the required value, the simulated well shut-in treatment is performed. After achieving the required effect of the simulated well shut-in treatment, the sealing valve 31 is opened, thereby simulating the effect of automatic oil ejection during the first stage of oil production. When the elastic energy is insufficient to lift the fluid, During this process, booster pump 44 and second five-way valve 45 are used to inject formation water or gas into the oil simulation space 13 to increase the pressure of the oil layer and replenish the elastic energy of the fluid in the formation physical model 10, so that the formation fluid can always flow to the oil extraction channel 30, thereby enabling the extraction of oil that cannot be extracted by natural energy alone, thus simulating secondary oil recovery. By setting up polymer storage container 25, highly water-soluble relative molecular polymers are added to the oil simulation space 13, thereby changing the viscosity of crude oil, increasing the fluidity of crude oil, and thus simulating improved oil collection portability, thereby facilitating the simulation of tertiary oil recovery. This is achieved through support plate 32, slide rail 33, and concave... The groove 34 and roller 35 facilitate the movement of the slider 37 within the slide rail 33. The movement of the slider 37 drives the support frame 38 and the oil extraction machine 39 to move, thus facilitating the replacement of oil extraction machines 39 with different performance characteristics. The fixed hole 36 improves the stability of the oil extraction machine 39 during use, thereby simulating the formation conditions during oil extraction using different oil extraction machines 39. The oil storage tank 40, solenoid valve 47, flow meter 48, oil collection pipe 41, and oil extraction pipe 43 enable the collection of injected crude oil and the recording of the flow rate of the collected oil, which is beneficial for accurately obtaining oil extraction data and improving the accuracy of the simulation.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A simulation method for a formation physical model simulating an oilfield production process, wherein the formation physical model includes a data acquisition module (1), characterized in that: The acquisition module (1) is electrically connected to the detection module (2) in both directions. The detection module (2) is electrically connected to the data comparison module (3) in both directions. The data comparison module (3) is electrically connected to the data transmission module (4) and the data storage module (5) in both directions. The data transmission module (4) is electrically connected to the control platform (6) in both directions. The control platform (6) is electrically connected to the data display panel (7) and the PLC controller (8) in both directions. The PLC controller (8) is electrically connected to the actuator (9) in both directions. The actuator (9) includes a geological physical model (10), and one side of the top of the geological physical model (10) is installed at the bottom of the PLC controller (8). A core model (11) is provided at the bottom of the inner wall of the geological physical model (10), and a surface soil layer (12) is provided at the top of the core model (11). An oil simulation space (13) is opened in the inner wall of the core model (11). Several control knobs (14) are provided at the front end of the top of the PLC controller (8). Several temperature sensors (15), pressure sensors (16) and flow sensors (17) are provided in the inner wall of the oil simulation space (13). The temperature sensors (15), pressure sensors (16) and flow sensors (17) are all electrically connected to the acquisition module (1). The simulation method for the formation physical model of the oilfield production process is as follows: S1. By setting up the core model (11), surface soil layer (12) and oil simulation space (13), it is convenient to make different sizes and shapes of formation physical models (10) according to needs. By setting up the acquisition module (1), the acquisition module (1) can collect the temperature, pressure and flow information inside the oil simulation space (13). By setting up the detection module (2) and the data comparison module (3), the collected temperature, pressure and flow information are compared to ensure the accuracy of the data during the simulation process. Then, the data collected and the data comparison information are transmitted to the control platform (6) through the data transmission module (4). Finally, the data is displayed on the data display panel (7) for easy viewing by users. By setting up the PLC controller (8), after reaching the data set value, the actuator (9) can be automatically adjusted to carry out the simulation experiment, which is conducive to improving the simulation effect. S2. The oil extraction channel (30) is sealed by the sealing valve (31). Formation water, crude oil and injection gas can be injected into the oil simulation space (13) in sequence by the booster pump (44), the first five-way valve (18) and the second five-way valve (45). The collected data and the set values ​​are compared. After the required values ​​are reached, the well suffocation treatment is carried out. After the effect required for the well suffocation treatment is achieved, the sealing valve (31) is opened, so as to simulate the effect of automatic oil spraying during the first stage of oil production. S3. When the elastic energy is insufficient to lift the fluid, use a booster pump (44) and a second five-way valve (45) to inject formation water or gas into the oil simulation space (13) to increase the pressure of the oil layer, supplement the elastic energy of the fluid in the formation physical model (10), so that the formation fluid can always flow to the oil extraction channel (30), thereby being able to extract oil that cannot be extracted by natural energy alone, and thus simulate the completion of secondary oil recovery. S4. By setting up a polymer storage container (25), a highly water-soluble relative molecular polymer is added to the oil simulation space (13), thereby changing the viscosity of crude oil, increasing the fluidity of crude oil, thereby simulating and improving the portability of oil collection, and thus facilitating the simulation of tertiary oil recovery. S5. During the simulated three-stage oil recovery process, the collected oil will eventually flow into the oil storage tank (40) for collection.

2. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 1, characterized in that: A first five-way valve (18) is installed in the middle of the top of the surface soil layer (12). An input pipe (21) is installed at the output end of the first five-way valve (18), and the other end of the input pipe (21) penetrates the core model (11) and the surface soil layer (12) and is installed on the outer wall of the oil simulation space (13). An input component is installed at the input end of the first five-way valve (18). The input component is used to input formation water, crude oil, injected gas and polymer.

3. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 2, characterized in that: The input component includes a booster pump (44), and the bottom of the booster pump (44) is installed at the front end of the top of the surface soil layer (12). The output end of the booster pump (44) is equipped with a second five-way valve (45). The output end of the second five-way valve (45) is equipped with several output pipes (46). The other end of the output pipes (46) is connected to a formation water storage container (22), a crude oil storage container (23), an injection gas storage container (24), and a polymer storage container (25), respectively. The bottoms of the formation water storage container (22), the crude oil storage container (23), the injection gas storage container (24), and the polymer storage container (25) are all installed at one end of the top of the surface soil layer (12).

4. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 3, characterized in that: The formation water storage container (22) is equipped with a formation water output pipe (26) at its output end, and the other end of the formation water output pipe (26) is installed at the input end of the first five-way valve (18). The crude oil storage container (23) is equipped with a crude oil output pipe (27) at its output end, and the other end of the crude oil output pipe (27) is installed at the input end of the first five-way valve (18). The injection gas storage container (24) is equipped with an injection gas output pipe (28) at its output end, and the other end of the injection gas output pipe (28) is installed at the input end of the first five-way valve (18). The polymer storage container (25) is equipped with a polymer output pipe (29) at its output end, and the other end of the polymer output pipe (29) is installed at the input end of the first five-way valve (18).

5. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 1, characterized in that: An oil extraction channel (30) is fitted into the middle of the top of the core model (11) and the surface soil layer (12), and a sealing valve (31) is installed at the bottom and top of the oil extraction channel (30).

6. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 1, characterized in that: An oil storage tank (40) is installed on the top of the surface soil layer (12). An oil collection pipe (41) is installed at the input end of the oil storage tank (40). A solenoid valve (47) is installed at one end of the outer wall of the oil collection pipe (41). A flow meter (48) is installed on the outer wall of the solenoid valve (47). An oil outlet (42) is movably connected to the other end of the oil collection pipe (41). One end of the oil outlet (42) is opened on the outer wall of the oil lifting pipe (43), and the outer wall of the oil lifting pipe (43) is movably connected to the inner wall of the oil lifting channel (30).

7. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 1, characterized in that: A set of support plates (32) are installed on the top of the surface soil layer (12). A slide rail (33) is provided on the top of the support plate (32). Several grooves (34) are provided on the inner bottom wall of the slide rail (33). Rollers (35) are installed on the inner wall of the grooves (34). Several fixing holes (36) are provided on the outer wall of the support plate (32).

8. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 7, characterized in that: The inner wall of the slide rail (33) is equipped with a slider (37), and the bottom of the slider (37) is installed on the top of the roller (35). The top of the slider (37) is equipped with a support frame (38), and the top of the support frame (38) is equipped with an oil lifting machine (39).

9. The simulation method for a formation physical model simulating an oilfield oil production process according to claim 1, characterized in that, Step S3 also includes the following steps: S31. By setting up the support plate (32), slide rail (33), groove (34) and roller (35), the slider (37) can move in the slide rail (33). The movement of the slider (37) can drive the support frame (38) and the oil extraction machine (39) to move, thereby facilitating the replacement of oil extraction machines (39) with different performance. By setting up the fixing hole (36), the stability of the oil extraction machine (39) can be improved, thereby simulating the formation conditions during the oil extraction process using different oil extraction machines (39).

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