Visual simulation device for various well patterns of vertical and horizontal wells

Abstract

This invention provides a visualization simulation device for multiple well network combinations of vertical and horizontal wells, belonging to the field of reservoir physical simulation technology. The device includes: a well network model body with multiple vertical and horizontal wellheads; multiple fluid delivery pumps, each fluid delivery pump being fluidly connected to any vertical or horizontal wellhead on the well network model body via pipelines; and a controller electrically connected to each fluid delivery pump for controlling the pumps to supply fluid to their connected wellheads. This invention improves the flexibility of well network simulation and the overall practicality of the device by constructing flexible fluid connections between the fluid delivery pumps and any wellhead on the well network model body, and by controlling the pumps to supply fluid to their connected wellheads via the controller.

Description

Technical Field

[0001] This utility model relates to the field of reservoir physical simulation technology, and in particular to a visualization simulation device for multiple well network combinations of vertical and horizontal wells. Background Technology

[0002] In the field of oil reservoir development, physical simulation experiments are an important means of studying fluid seepage laws. Current technologies typically employ a visual physical model device for simulation. This device generally includes a model box filled with a porous medium, with a limited number of wellheads pre-set on the box. To drive fluid flow, the device is usually equipped with one or a few pumps, each pump connected to a specific wellhead via a fixed pipeline.

[0003] However, the aforementioned existing technical solutions have significant structural flaws. Because the pipeline connection between each pump and its corresponding wellhead is fixed, the function of each wellhead (e.g., as an injection well or a production well) is predetermined and cannot be changed. This one-to-one, rigid physical connection between wellhead function and the drive source results in the injection-production pattern of the entire well network being fixed after the device is manufactured. Therefore, when researchers need to compare different well network schemes or dynamically adjust the function of the wellheads, the existing device structure is completely inadequate, fundamentally limiting its experimental flexibility. Utility Model Content

[0004] This invention provides a visualization simulation device for various well patterns of vertical and horizontal wells, which addresses the shortcomings of existing technologies and improves the flexibility of well pattern simulation and the practicality of the overall device.

[0005] This utility model provides a visualization simulation device for various well pattern combinations of vertical and horizontal wells, including:

[0006] The main body of the well network model has multiple vertical wellheads and multiple horizontal wellheads.

[0007] Multiple fluid delivery pumps, each of which is fluidly connected to any of the vertical wellheads or any of the horizontal wellheads on the main body of the well network model via pipelines;

[0008] A controller, electrically connected to each of the fluid delivery pumps, is used to control the fluid delivery pumps to supply fluid to the wellheads to which they are connected.

[0009] According to the present invention, a visualization simulation device for multiple well patterns of vertical and horizontal wells is provided, wherein the main body of the well pattern model includes an upper cover plate, a lower cover plate, and a well pattern model frame.

[0010] According to the present invention, a visualization simulation device for multiple well network combinations of vertical and horizontal wells is provided, wherein the multiple vertical wellheads are set on the upper cover plate; and the multiple horizontal wellheads are set on the well network model frame.

[0011] According to the present invention, a visualization simulation device for multiple well patterns of vertical and horizontal wells is provided, wherein the upper cover plate, the lower cover plate, and the well pattern model frame form a sealed cavity for accommodating porous media.

[0012] According to the present invention, a visualization simulation device for multiple well network combinations of vertical and horizontal wells is provided, wherein both the upper cover plate and the lower cover plate are made of transparent material.

[0013] According to the present invention, a visualization simulation device for multiple well patterns of vertical and horizontal wells is provided, wherein the controller includes:

[0014] Touchscreen display;

[0015] A central processing unit, one end of which is electrically connected to the touch display screen;

[0016] A communication unit, one end of which is electrically connected to the other end of the central processing unit; the other end of which is electrically connected to each of the fluid delivery pumps;

[0017] The central processing unit is used to receive user input signals from the touch screen and convert the user input signals into control command messages;

[0018] The communication unit is used to receive control command messages from the central processing unit and send the control command messages to each of the fluid delivery pumps.

[0019] According to the present invention, a visualization simulation device for multiple well network combinations of vertical and horizontal wells is provided, wherein the communication unit is connected to each of the fluid delivery pumps via an RS485 communication bus.

[0020] In summary, one or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0021] By incorporating multiple vertical and horizontal wellheads on the main body of the well network model, the device possesses the physical foundation to simulate complex well networks, overcoming the structural limitations caused by insufficient wellhead numbers and fixed layouts in existing technologies. Furthermore, by installing multiple fluid delivery pumps and establishing fluid communication between each pump and any wellhead on the main body of the well network model via pipelines, an independent fluid delivery path is created for each wellhead. Finally, by installing controllers electrically connected to each fluid delivery pump, the cumbersome operation and low efficiency caused by the dispersed components in existing technologies are resolved, effectively enhancing the flexibility of well network simulation and the overall practicality of the device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the planar structure of the visualization simulation device for various well patterns of vertical and horizontal wells provided by this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the main body of the well network model provided by this utility model.

[0025] Figure 3 This is a schematic diagram of the controller provided by this utility model.

[0026] Figure descriptions: 1. Main body of the well pattern model; 11. Upper cover plate; 12. Lower cover plate; 13. Frame of the well pattern model; 14. Wellhead of the vertical well; 15. Wellhead of the horizontal well; 2. Fluid transfer pump; 3. Controller; 31. Touch screen display; 32. Central processing unit; 33. Communication unit. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] It should be noted that in the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and their variations all mean "including but not limited to," unless otherwise specifically emphasized.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "electrical connection," "electrical connection," or "communication electrical connection" should be interpreted broadly. For example, "electrical connection," "electrical connection," or "communication electrical connection" can refer not only to a physical electrical connection, but also to an electrical connection or a signal electrical connection. For instance, it can be a direct electrical connection, i.e., a physical electrical connection, or an indirect electrical connection through at least one intermediate component, as long as the circuit is connected. It can also refer to the internal connection between two components. A signal electrical connection can refer not only to a signal electrical connection through a circuit, but also to a signal electrical connection through a medium, such as radio waves. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] The following is combined Figures 1-3 This invention describes a visualization simulation device for various well patterns of vertical and horizontal wells.

[0031] Figure 1 This is a schematic diagram of the planar structure of the visualization simulation device for various well patterns of vertical and horizontal wells provided by this utility model, such as... Figure 1 As shown, the device includes:

[0032] The main body of the well network model 1 has multiple vertical wellheads 14 and multiple horizontal wellheads 15.

[0033] Multiple fluid transfer pumps 2 are connected to any vertical wellhead 14 or any horizontal wellhead 15 on the main body of the well network model 1 via pipelines.

[0034] Controller 3 is electrically connected to each fluid transfer pump 2 and is used to control the fluid transfer pump 2 to supply fluid to the wellhead to which it is connected.

[0035] To address the problems of fixed well network layout, inflexible fluid control, and low system integration in existing seepage simulation devices, this invention provides a specific embodiment of a visualization simulation device for various well network combinations in vertical and horizontal wells.

[0036] Specifically, the main body 1 of the well network model is a physical model used to simulate the geological structure of the oil reservoir. It has multiple vertical wellheads 14 and multiple horizontal wellheads 15. These vertical or horizontal wellheads 14 are used to simulate water injection wells or production wells in an actual oilfield. Any vertical wellhead 14 can serve as a water injection well or a production well, and similarly, any horizontal wellhead 15 can serve as either a water injection well or a production well. Multiple fluid transfer pumps 2 are devices that provide fluid power for the experiment. Pipelines are fluid channels connecting the outlets of the fluid transfer pumps 2 to the wellheads on the main body 1 of the well network model. The controller 3 is the control core of the entire device; it establishes a connection with each fluid transfer pump 2 via electrical signals.

[0037] In this specific embodiment, the fluid delivery pump 2 is preferably a peristaltic pump, and the number of fluid delivery pumps 2 can be selected according to actual needs. Each fluid delivery pump 2 is fluidly connected to any vertical wellhead 14 or any horizontal wellhead 15 on the well network model body 1 through an independent pipeline. This connection method allows operators to flexibly combine injection and production well positions according to experimental needs. The controller 3 is electrically connected to each fluid delivery pump 2 to send control commands and control the fluid delivery pump 2 to supply fluid to the wellhead it is connected to.

[0038] By centrally controlling multiple fluid delivery pumps 2 through controller 3, automated and precise management of fluid supply from multiple wellheads is achieved. This solves the problems of cumbersome operation and low efficiency caused by the dispersion of components in the existing technology, and greatly enhances the flexibility of well network simulation and the practicality of the overall device.

[0039] In one possible implementation, Figure 2 This is a three-dimensional structural diagram of the main body of the well network model provided by this utility model, as shown below. Figure 2 As shown, the main body 1 of the well network model includes an upper cover plate 11, a lower cover plate 12, and a well network model frame 13.

[0040] To clearly define the physical boundaries of the main body 1 of the well pattern model and construct a stable structure to accommodate the experimental medium, this application specifies the specific composition of the main body 1 of the well pattern model. This structural design aims to provide a foundation for subsequent visualization and complex wellhead layouts.

[0041] In this embodiment, the well pattern model body 1 includes an upper cover plate 11, a lower cover plate 12, and a well pattern model frame 13. The upper cover plate 11 is a plate-shaped component covering the top of the well pattern model body 1. The lower cover plate 12 is a plate-shaped component supporting the bottom of the well pattern model body 1. The well pattern model frame 13 is a frame structure located between the upper cover plate 11 and the lower cover plate 12, defining the main outline and thickness of the well pattern model body 1.

[0042] In this specific embodiment, the well pattern model frame 13 adopts a rectangular frame structure with a certain thickness. The upper cover plate 11 and the lower cover plate 12 are respectively fixed to the upper and lower sides of the well pattern model frame 13. The three are connected together by bolts and other fasteners to form the overall structure of the well pattern model body 1.

[0043] This structure, composed of an upper cover plate 11, a lower cover plate 12, and a well network model frame 13, not only provides the device with a stable shape and accurate dimensions, but also creates conditions for the subsequent formation of a sealed cavity and the opening of wellheads in different locations, solving the problem of the traditional model having a single structure and difficulty in expanding its functions.

[0044] In one possible implementation, refer to Figure 2 Multiple vertical wellheads 14 are set on the upper cover plate 11; multiple horizontal wellheads 15 are set on the well network model frame 13.

[0045] To address the limitations of existing technologies that rely on a single well type and cannot simulate the coordinated operation of vertical and horizontal wells in modern oil reservoir development, this application presents a detailed design for the wellhead types and layout on the main body 1 of the well network model. This design aims to enable the device to simulate more complex and realistic oil reservoir development well networks through structural innovation.

[0046] In this embodiment, multiple vertical wellheads 14 are disposed on the upper cover plate 11 to simulate oil and water wells that vertically penetrate the formation. Multiple horizontal wellheads 15 are disposed on the well network model frame 13 to simulate oil and water wells that extend horizontally in the oil layer. This structure, which integrates two different types of wellheads on the same well network model body 1, specifically the number of vertical wellheads 14 and the number of horizontal wellheads 15.

[0047] In a preferred embodiment, the upper cover plate 11 has twelve through holes arranged in an array, each through hole being a vertical wellhead 14, with its axis perpendicular to the plane of the upper cover plate 11. Similarly, the sidewall of the well pattern model frame 13 has two through holes, each through hole being a horizontal wellhead 15, with its axis perpendicular to the sidewall of the well pattern model frame 13. By setting wellheads at different positions on the upper cover plate 11 and the well pattern model frame 13, the spatial layout of vertical and horizontal wells is differentiated, physically reproducing the positional relationship of the two types of wells in the reservoir.

[0048] This visualization simulation device for multiple well patterns combining vertical and horizontal wells overcomes the limitation of traditional models that can only simulate a single well type by simultaneously setting up multiple vertical wellheads 14 and multiple horizontal wellheads 15. This structure enables the device to conduct seepage simulation experiments on complex well patterns including horizontal wells, such as studying the discharge range of horizontal wells or the synergistic displacement effect of vertical and horizontal wells. This greatly expands the device's experimental capabilities, fills the gap in existing technology for visually simulating horizontal well development schemes, and thus provides support for a wider range of reservoir engineering research.

[0049] In one possible implementation, the upper cover plate 11, the lower cover plate 12, and the well pattern model frame 13 form a sealed cavity for accommodating porous media.

[0050] In this specific embodiment, the upper cover plate 11 and the lower cover plate 12 are respectively pressed onto the upper and lower surfaces of the well network model frame 13 by fasteners, and a sealing element is provided between the contact surfaces, thereby forming a sealed cavity with a predetermined volume. The sealed cavity is filled with a porous medium. The porous medium is a granular material filling the sealed cavity to simulate the reservoir rock of a real oil reservoir. In order to simulate the heterogeneity of an actual oil reservoir, porous media with different particle sizes or compaction degrees, such as high-purity quartz white sand, can be filled in different areas of the sealed cavity to create zones with different permeabilities.

[0051] This sealed cavity structure, consisting of an upper cover plate 11, a lower cover plate 12, and a well network model frame 13, provides a stable and leak-free physical environment for seepage simulation experiments. Furthermore, the cavity is filled with heterogeneous material in distinct zones, enabling the physical reproduction of permeability differences commonly found in actual oil reservoirs. This solves the technical problem that most existing models can only fill single-permeability sand layers and cannot study fluid distribution patterns under complex reservoir conditions, significantly improving the accuracy of simulation experiments and the degree of reproduction of real geological conditions.

[0052] In one possible implementation, both the upper cover plate 11 and the lower cover plate 12 are made of transparent material.

[0053] To address the problem that existing technologies have a single observation perspective and cannot fully observe the internal fluid flow state, this application specifies the materials for the upper cover plate 11 and the lower cover plate 12.

[0054] In this embodiment, both the upper cover plate 11 and the lower cover plate 12 are made of transparent material. Transparent material refers to a material with high light transmittance, allowing clear observation of objects behind it.

[0055] In this specific embodiment, both the upper cover plate 11 and the lower cover plate 12 are made of acrylic sheets or tempered glass with high light transmittance. These two transparent plates are fixed to the upper and lower sides of the well pattern model frame 13, respectively, thus forming the top and bottom boundaries of the sealed cavity.

[0056] This visualization simulation device for various well patterns in vertical and horizontal wells achieves dual-sided visualization of the sealed cavity by making both the upper cover plate 11 and the lower cover plate 12 transparent. This structure allows operators to observe the displacement process of fluid in the porous medium inside the device simultaneously or alternately from the top and bottom, thus significantly improving the comprehensiveness and accuracy of experimental observation.

[0057] In one possible implementation, Figure 3 This is a schematic diagram of the controller provided by this utility model, as shown below. Figure 3 As shown, controller 3 includes:

[0058] Touch display screen 31;

[0059] Central processing unit 32, one end of which is electrically connected to touch display screen 31;

[0060] Communication unit 33, one end of which is electrically connected to the other end of central processing unit 32. The other end of communication unit 33 is electrically connected to each fluid transfer pump 2;

[0061] The central processing unit 32 is used to receive user input signals from the touch display screen 31 and convert the user input signals into control command messages;

[0062] The communication unit 33 is used to receive control command messages from the central processing unit 32 and send the control command messages to each fluid transfer pump 2.

[0063] In this embodiment, the controller 3 includes a touch screen 31, a central processing unit 32, and a communication unit 33. The touch screen 31 is a human-machine interface integrating touch input and graphical display functions. The central processing unit 32 is the core computing unit that executes control software, processes data, and generates instructions. The communication unit 33 is a hardware module responsible for converting the digital instruction signals generated by the central processing unit 32 into electrical signals suitable for bus transmission. One end of the central processing unit 32 is electrically connected to the touch screen 31, and the other end is electrically connected to the communication unit 33. The other end of the communication unit 33 is electrically connected to each of the fluid transfer pumps 2.

[0064] In a specific embodiment of this invention, the controller 3 can be a tablet computer with a built-in touchscreen. When an operator inputs operation commands such as flow rate settings through the touchscreen display 31, the touchscreen display 31 sends the user input signal to the central processing unit 32. The central processing unit 32 receives and parses the user input signal, and then converts it into a control command message of a specific format. Next, the central processing unit 32 sends the control command message to the communication unit 33. After receiving the message, the communication unit 33 converts it into a corresponding electrical signal and sends the signal to the target fluid transfer pump 2 through the electrical connection to drive it to perform the corresponding action.

[0065] In one possible implementation, the communication unit 33 is connected to each fluid transfer pump 2 via an RS485 communication bus.

[0066] In order to achieve efficient and reliable communication between the controller 3 and multiple fluid transfer pumps 2, and to simplify the complexity of electrical connections within the system, this application specifies the connection method between the communication unit 33 and the fluid transfer pumps 2.

[0067] In this embodiment, the communication unit 33 is connected to each fluid transfer pump 2 via an RS485 communication bus. The RS485 communication bus is an electrical structure used to enable parallel electrical connections of multiple devices on the same physical line.

[0068] In this specific embodiment, the communication unit 33 is provided with an output terminal, and each fluid transfer pump 2 is provided with a communication input terminal. One end of an RS485 communication bus is electrically connected to the output terminal of the communication unit 33. The other end of the RS485 communication bus is connected in parallel and electrically connected to the communication input terminals of all fluid transfer pumps 2 simultaneously. Through this connection structure, a shared electrical path is formed between the controller 3 and all the fluid transfer pumps 2.

[0069] It should be noted that the fluid transfer pump 2, the main body of the well network model 1, and the controller 3 are all mounted on the support frame.

[0070] Specifically, the support frame is constructed from metal profiles and has casters installed at its bottom for easy movement. The support frame is the mechanical structure that supports the entire device, providing a stable mounting base for all other components. The main body 1 of the well network model is placed horizontally in the center of the support frame. Multiple fluid transfer pumps 2 are integrated and mounted side-by-side on the upper part of the support frame. The controller 3 is also fixedly mounted on the support frame, its installation position convenient for operator use and observation.

[0071] This visualization simulation device for various well patterns, including vertical and horizontal wells, integrates all core simulation, power, and control components onto a single support frame, forming a complete and independently operable experimental system. This structural design not only makes the device compact, facilitating transportation and deployment, but also significantly reduces the complexity of on-site setup.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A visualization simulation device for multiple well patterns combining vertical and horizontal wells, characterized in that, include: The main body of the well network model has multiple vertical wellheads and multiple horizontal wellheads. Multiple fluid delivery pumps, each of which is fluidly connected to any of the vertical wellheads or any of the horizontal wellheads on the main body of the well network model via pipelines; A controller, electrically connected to each of the fluid delivery pumps, is used to control the fluid delivery pumps to supply fluid to the wellheads to which they are connected.

2. The visualization simulation device for multiple well patterns of vertical and horizontal wells according to claim 1, characterized in that, The main body of the well pattern model includes an upper cover plate, a lower cover plate, and a well pattern model frame.

3. The visualization simulation device for multiple well patterns of vertical and horizontal wells according to claim 2, characterized in that, The plurality of vertical wellheads are located on the upper cover plate; the plurality of horizontal wellheads are located on the well network model frame.

4. The visualization simulation device for multiple well patterns of vertical and horizontal wells according to claim 2, characterized in that, The upper cover plate, the lower cover plate, and the well pattern model frame together form a sealed cavity for accommodating porous media.

5. The visualization simulation device for multiple well patterns of vertical and horizontal wells according to claim 2, characterized in that, Both the upper cover and the lower cover are made of transparent material.

6. The visualization simulation device for multiple well patterns of vertical and horizontal wells according to claim 1, characterized in that, The controller includes: Touchscreen display; A central processing unit, one end of which is electrically connected to the touch display screen; A communication unit, one end of which is electrically connected to the other end of the central processing unit; the other end of which is electrically connected to each of the fluid delivery pumps; The central processing unit is used to receive user input signals from the touch screen and convert the user input signals into control command messages; The communication unit is used to receive control command messages from the central processing unit and send the control command messages to each of the fluid delivery pumps.

7. The visualization simulation device for multiple well patterns of vertical and horizontal wells according to claim 6, characterized in that, The communication unit is connected to each of the fluid transfer pumps via an RS485 communication bus.

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