Constant-flow intelligent water distribution constant-pressure water injection device

Abstract

The utility model discloses a steady-flow intelligent water distribution constant-pressure water injection device which comprises a supporting base, a water injection pump is fixedly installed on the surface of the supporting base, a water injection main pipe is fixedly connected to the tail end of a drainage pipe of the water injection pump, a water injection branch pipe is installed at the tail end of a flow dividing pipe, and a water storage tank is fixedly connected to the tail end of the water injection branch pipe. A water outlet pipe is fixedly connected to one side of the water storage tank, a first pressure sensor is fixedly installed on one side of the first adjusting valve, a flow sensor is fixedly installed on one side of the first pressure sensor, and an adjusting pump is fixedly installed on one side of the water storage tank. The device has the advantages that water is conveyed to the water injection branch pipes through the water injection main pipe, water is stored in the water storage tank before the water injection branch pipes inject water into the water outlet pipes, and when the pressure sensor I and the flow sensor monitor that the pressure and the flow in the water outlet pipes are reduced, the water storage tank is started; redundant water in the water storage tank can be pumped into the water outlet pipe through the adjusting pump, so that the pressure and flow of the water outlet pipe during discharging are stably maintained.

Description

Technical Field

[0001] This utility model relates to the technical field of steady flow intelligent water distribution and constant pressure water injection device, specifically, to a steady flow intelligent water distribution and constant pressure water injection device. Background Technology

[0002] In oilfield development, especially in areas with complex geological conditions and viscous oil, high-pressure water injection technology is often employed to improve extraction efficiency and oil recovery. High-pressure water injection effectively drives crude oil from the formation towards the production well by injecting high-pressure water into the well, thereby increasing oil production. However, this technology places strict requirements on the flow rate and velocity of the injected water; these must be kept relatively constant to ensure the consistency and stability of the injection effect.

[0003] However, in practice, oil and gas fields are often affected by complex mountainous terrain, resulting in relatively dispersed well sites and presenting numerous challenges to the layout of water injection systems. Typically, a single water injection main pipe connects to several branch pipes, which are laid along complex terrain to cover the various scattered oil wells. While this layout improves the flexibility of the water injection system to some extent, it also introduces new problems.

[0004] Due to factors such as topographic relief, differences in pipeline length, and variations in resistance along the route, pressure imbalances can easily occur in water injection branch pipes in different areas. When some branch pipes are located in areas with higher terrain or longer pipelines, the required water pressure will increase accordingly, leading to a decrease in the injection flow rate in that area. Conversely, branch pipes in areas with lower terrain or shorter pipelines may experience excessively high water pressure, resulting in an excessively high injection flow rate. This pressure imbalance directly leads to an uneven distribution of water flow, making it impossible for each oil well to consistently obtain the required water volume. Currently, no effective solution has been proposed to address these technical problems. Utility Model Content

[0005] In response to the problems in related technologies, this utility model proposes a steady-flow intelligent water distribution and constant-pressure water injection device to overcome the aforementioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A constant-pressure, intelligent, stable-flow water distribution device includes a support base. A water injection pump is fixedly installed on the surface of the support base. A water injection main pipe is fixedly connected to the end of the water injection pump's drain pipe. Diversion pipes are fixedly connected to each side of the surface of the water injection main pipe. A water injection branch pipe is installed at the end of the diversion pipe. A water storage tank is fixedly connected to the end of the water injection branch pipe. An outlet pipe is fixedly connected to one side of the water storage tank. A regulating valve is fixedly installed on one side of the outlet pipe. A pressure sensor is fixedly installed on one side of the regulating valve. A flow sensor is fixedly installed on one side of the pressure sensor. A regulating pump is fixedly installed on one side of the water storage tank. A flow booster pipe is fixedly connected between the regulating pump and the outlet pipe.

[0008] Furthermore, in order to achieve automated control of the flow and pressure of each water pipe in the device, a protective box is fixedly installed on one side of the support base, a PLC controller is fixedly installed inside the protective box, and a wireless communication module is fixedly installed on one side of the PLC controller.

[0009] Furthermore, in order to control the water flow from the main water supply pipe to the branch pipe and the sub-pipe, a regulating valve is fixedly installed on one side of the branch pipe.

[0010] Furthermore, in order to control the pressure and flow rate of the water pumped out by the water injection pump, a frequency converter is fixedly installed on one side of the water injection pump.

[0011] Furthermore, in order to trigger an alarm when the pressure and flow rate in the outlet pipe are abnormal for an extended period of time, a buzzer is fixedly installed on one side of the inside of the protective box.

[0012] Furthermore, in order to monitor the pressure inside the water tank, a pressure sensor is fixedly installed on one side of the water tank.

[0013] Furthermore, to achieve a detachable connection between the branch pipe and the injection pipe, a flange is fixedly connected to one end of both the branch pipe and the injection branch pipe, and the flanges are fixedly connected by bolts. The beneficial effects of this invention are as follows: water is supplied to each branch pipe and the connected injection branch pipe through the main injection pipe. Before water is injected into the outlet pipe through the injection branch pipe, water is stored in the storage tank. The pressure and flow rate of the water in the outlet pipe are monitored by pressure sensor one and flow sensor one. When the pressure and flow rate in the outlet pipe decrease, the water stored in the storage tank can be pumped into the outlet pipe by adjusting the pump, thereby increasing the pressure and flow rate in the outlet pipe. When the pressure and flow rate in the outlet pipe are too high, the flow can be limited and the pressure reduced in the branch pipe and outlet pipe by adjusting valve one and adjusting valve two, thereby effectively ensuring the stability of the water discharged from the outlet pipe. This device can monitor and adjust the drainage pressure and flow rate of each outlet pipe in real time, ensuring that each oil well receives a stable and appropriate amount of water injection, thus improving the stability and reliability of the water injection operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the surface structure of a constant pressure water injection device with stable flow distribution according to an embodiment of the present utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a side view of a constant-pressure water injection device with stable flow distribution according to an embodiment of the present utility model;

[0018] Figure 4 This is a rear view of a constant-pressure water injection device with stable flow distribution according to an embodiment of the present utility model.

[0019] In the diagram: 1. Support base; 2. Water pump; 3. Water injection main pipe; 4. Diversion pipe; 5. Water injection branch pipe; 6. Water storage tank; 7. Water outlet pipe; 8. Regulating valve one; 9. Pressure sensor one; 10. Flow sensor; 11. Regulating pump; 12. Flow booster pipe; 13. Protective box; 14. PLC controller; 15. Wireless communication module; 16. Regulating valve two; 17. Frequency converter; 18. Buzzer; 19. Pressure sensor two; 20. Flange. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] According to an embodiment of this utility model, a steady-flow intelligent water distribution and constant-pressure water injection device is provided.

[0022] Example 1:

[0023] like Figures 1-4As shown, a constant-pressure intelligent water distribution device according to an embodiment of this utility model includes a rectangular metal support base 1. A water injection pump 2 is fixedly installed on the surface of the support base 1 for supplying and pumping water into oil wells. A water injection main pipe 3 is fixedly connected to the end of the drain pipe of the water injection pump 2. A plurality of branch pipes 4 are fixedly connected to each side of the surface of the water injection main pipe 3 for diverting water in the water injection main pipe 3 to various oil wells. A water injection branch pipe 5 is installed at the end of one of the branch pipes 4. The lengths of the water injection main pipe 3 and the water injection branch pipe 5 are not limited and can be set according to the actual required length. A water storage tank 6 is fixedly connected to the end of the water injection branch pipe 5 for storing part of the water discharged from the water injection branch pipe 5. A water outlet pipe 7 is fixedly connected to one side of the water storage tank 6 for discharging water with stable pressure and flow rate into the oil well; a regulating valve 8 is fixedly installed on one side of the water outlet pipe 7 for regulating the water flow rate in the water outlet pipe 7; a pressure sensor 9 is fixedly installed on one side of the regulating valve 8, and a flow sensor 10 is fixedly installed on one side of the pressure sensor 9, for monitoring the pressure and flow rate of the water in the water outlet pipe 7, respectively; a regulating pump 11 is fixedly installed on one side of the water storage tank 6, and a flow booster pipe 12 is fixedly connected between the regulating pump 11 and the water outlet pipe 7. When the pressure and flow rate of the water in the water outlet pipe 7 are low, the water stored in the water storage tank 6 can be injected into the water outlet pipe 7 through the flow booster pipe 12 by the regulating pump 11.

[0024] like Figures 1-4 As shown, a protective box 13 is fixedly installed on one side of the support base 1. A PLC controller 14 is fixedly installed inside the protective box 13. A wireless communication module 15 is fixedly installed on one side of the PLC controller 14. This wireless communication module 15 is a 4G / 5G communication module, which enables the PLC controller 14 to automatically control the flow and pressure of each water pipe in the device. A regulating valve 16 is fixedly installed on one side of the branch pipe 4, which is used to control the water flow from the main water supply pipe 3 to the branch pipe 4 and the branch water supply pipe 5. Both regulating valve 1 and regulating valve 16 are electric pressure regulating valves, which can receive telecommunications signals from the PLC controller 14. The opening degree is adjusted by the number, thereby controlling the pipeline flow rate; a frequency converter 17 is fixedly installed on one side of the water injection pump 2 to change the power supply frequency of the water injection pump 2, thereby controlling the flow rate and pressure of the water discharged by the water injection pump 2; a pressure sensor 19 is fixedly installed on one side of the water storage tank 6 to monitor the pressure inside the water storage tank 6; a buzzer 18 is fixedly installed on one side inside the protective box 13 to provide an alarm when the pressure and flow rate in the outlet pipe 7 are abnormal for a long time; a flange 20 is fixedly connected to one end of the diversion pipe 4 and the water injection branch pipe 5, and the flanges 20 are fixedly connected by bolts to realize the detachable connection between the diversion pipe 4 and the water injection branch pipe 5.

[0025] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0026] In summary, with the help of the above-mentioned technical solution of this utility model, in actual use, water is pumped by the water injection pump 2 and injected into the water injection main pipe 3. The water injection main pipe 3 supplies water to each branch pipe 4 and the connected water injection branch pipe 5. Before water is injected into the water outlet pipe 7 by the water injection branch pipe 5, the water storage tank 6 is first stored. After the water storage is completed, the regulating valve 8 is opened by remote control via PLC, so that the water outlet pipe 7 injects water into the oil well with a stable pressure and flow rate. The pressure sensor 9 and the flow sensor 10 monitor the pressure and flow rate of the water in the water outlet pipe 7. When the pressure in the water outlet pipe 7 is detected to be high, the water outlet pipe 7 will be opened. When the pressure and flow rate decrease, the water stored in the water storage tank 6 can be pumped to the outlet pipe 7 by regulating pump 11, thereby increasing the pressure and flow rate in the outlet pipe 7. The PLC controller 14 increases the output of the water injection pump 2 through the frequency converter 17, thereby increasing the pressure and flow rate in the main water injection pipe 3. Simultaneously, it controls regulating valve 16 to increase the pressure and inlet flow of the corresponding branch water injection pipe 5. When the pressure and flow rate in the outlet pipe 7 are too high, the flow can be limited and the pressure reduced in the branch pipe 4 and the outlet pipe 7 by regulating valves 8 and 16, thereby effectively ensuring the stability of the water discharged from the outlet pipe 7. The above description is only a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steady flow intelligent water distribution constant pressure water injection device, characterized in that, The utility model provides an automatic water injection system, including support base (1), the surface fixed mounting of support base (1) has water injection pump (2), the drainpipe end fixed connection of water injection pump (2) has water injection dry pipe (3), the surface each side fixed connection of water injection dry pipe (3) has shunt pipe (4), the end mounting of shunt pipe (4) has water injection branch pipe (5), the end fixed connection of water injection branch pipe (5) has water storage tank (6), the one side fixed connection of water storage tank (6) has outlet pipe (7), the one side fixed mounting of outlet pipe (7) has regulating valve one (8), the one side fixed mounting of regulating valve one (8) has pressure sensor one (9), the one side fixed mounting of pressure sensor one (9) has flow sensor (10), the one side fixed mounting of water storage tank (6) has regulating pump (11), the fixed connection of regulating pump (11) with outlet pipe (7) has flow increasing pipe (12).

2. The steady flow intelligent water distribution constant pressure water injection device according to claim 1, characterized in that, The one side surface of the support base (1) is fixedly installed with a protection box (13), the inside one side of the protection box (13) is fixedly installed with a plc controller (14), the one side of the plc controller (14) is fixedly installed with a wireless communication module (15).

3. The steady flow intelligent distribution constant pressure water injection device according to claim 1, characterized in that, The one side of the shunt pipe (4) is fixedly installed with a regulating valve two (16).

4. The steady flow intelligent distribution constant pressure water injection device according to claim 1, characterized in that, The one side of the water injection pump (2) is fixedly installed with a frequency converter (17).

5. The steady flow intelligent distribution constant pressure water injection device according to claim 2, characterized in that, The inside one side of the protection box (13) is fixedly installed with a buzzer (18).

6. The steady flow intelligent distribution constant pressure water injection device according to claim 1, characterized in that, The one side of the water storage tank (6) is fixedly installed with a pressure sensor two (19).

7. The steady flow intelligent distribution constant pressure water injection device according to claim 1, characterized in that, The one end of the shunt pipe (4) and the water injection branch pipe (5) is fixedly connected with a flange plate (20), and the flange plates (20) are fixedly connected through bolts.

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